TEF6904AH/V5S,557 NXP Semiconductors, TEF6904AH/V5S,557 Datasheet
![no-image](/images/manufacturer_photos/0/4/487/nxp_semiconductors_sml.jpg)
TEF6904AH/V5S,557
Specifications of TEF6904AH/V5S,557
Related parts for TEF6904AH/V5S,557
TEF6904AH/V5S,557 Summary of contents
Page 1
TEF6904A Integrated car radio Rev. 03 — 20 March 2008 1. General description The TEF6904A is a single-chip car radio integrated circuit with FM/AM tuner, stereo decoder, weak signal processing and audio processing. FM tuner with double conversion to IF1 ...
Page 2
... NXP Semiconductors I Integrated audio processing and tone filtering I Treble, bass and loudness tone control I Volume, balance, fader and input gain control I Optional connection of external sound processor, navigation voice or beep input I Audio controls with Audio Step Interpolation (ASI) for pop-free function I Compact Disc (CD) dynamics compression ...
Page 3
... NXP Semiconductors Table 1. Quick reference data Symbol Parameter Stereo decoder path channel separation cs S/N signal-to-noise ratio THD total harmonic distortion Tone/volume control V maximum input voltage i(max) THD total harmonic distortion G volume/balance gain control vol G step resolution step(vol) G treble gain control treble ...
Page 4
XTAL2 MPXAMOUT XTAL1 MPXAMIN NOISE 77 STEREO vco VCCVCO BLANKER DECODER DIV ÷2 f REF snc 78 VCOFDB LO2 90 79 VCOTNK AM NOISE DETECTOR PLL BAND 80 vco VCOGND ÷N ÷M FM NOISE DETECTOR ...
Page 5
... NXP Semiconductors 6. Pinning information 6.1 Pinning CPOUT VCCPLL PLLGND IFMAGC TRFAGC DAAOUT FMMIX1IN1 FMMIX1IN2 RFGND IAMAGC Fig 2. Pin configuration for QFP80 6.2 Pin description Table 3. Symbol CPOUT VTUNE VCCPLL PLLGND i.c. VTCM VTC TEF6904A_3 Product data sheet 1 VTUNE i. VTCM VTC ...
Page 6
... NXP Semiconductors Table 3. Symbol IFMAGC TRFAGC n.c. n.c. n.c. n.c. DAAOUT FMMIX1IN1 FMMIX1IN2 VCCRF RFGND IAMAGC i.c. VDCPIN VAMCASFB VAMCAS AMMIX1DEC AMMIX1IN AMMIX1REF MIX1OUT1 MIX1OUT2 IFGND n.c. n.c. n.c. n.c. IF1DEC IF1IN AMMIX2OUT1 AMMIX2OUT2 TAMIFKAGC AMIF2DEC AMIF2IN V60 VREF GND VCC ...
Page 7
... NXP Semiconductors Table 3. Symbol DGND2 SDA SCL ADDR PROUT PLOUT INPR INPL RROUT LROUT RFOUT LFOUT AGND XTAL1 XTAL2 IND INC INBR INBL INAD INAC INAR INAL n.c. n.c. n.c. MPXAMIN MPXAMOUT VCCVCO VCOFDB VCOTNK VCOGND 7. Functional description 7.1 FM mixer 1 The FM quadrature mixer 1 converts FM RF (65 MHz to 108 MHz frequency of 10 ...
Page 8
... NXP Semiconductors 7 AGC AGC detection at the FM front-end mixer input with programmable threshold. When the threshold is exceeded, the PIN diode drive circuit sources a current to an external PIN diode circuit, keeping the RF signal level constant. Keyed AGC function is selectable via 2 the I C-bus and uses the in-band level information derived from the limiter. The AGC PIN diode drive circuit can optionally deliver a fi ...
Page 9
... NXP Semiconductors 7.9 VCO and dividers The varactor tuned LC oscillator together with the dividers provides the local oscillator signal for both AM and FM front-end mixers. The VCO has an operating frequency of approximately 160 MHz to 250 MHz mode the VCO frequency is divided These dividers generate in-phase and quadrature-phase output signals used in the FM front-end mixer for image rejection ...
Page 10
... NXP Semiconductors 7. noise blanker The spike detection for the AM IF noise blanker is at the output of the AM front-end mixer. Blanking is realized at the second AM mixer. 7. AGC amplifier and demodulator The 450 kHz IF2 signal after the ceramic channel selection filter is amplified by the IF AGC amplifi ...
Page 11
... NXP Semiconductors 7.22 FM and AM AF noise blanker The tuner operation selects between two noise blanker operations optimized for ignition noise suppression mode the noise blanker operates as a modified sample and hold circuit with ultrasonic noise detection on MPX and detection of noise spikes on level. ...
Page 12
... NXP Semiconductors Four of the eight input pins can connect to: – 1 stereo signal with differential input (CD-symmetrical) – 1 stereo signal with common mode rejection (CD-2) and 1 mono signal (e.g. BEEP) – 2 stereo signals (AUX and AUX-2) – 1 stereo signal (AUX) and 2 mono signals (e.g. NAV and BEEP) ...
Page 13
... NXP Semiconductors 7.34 Fader The fader is located at the end of the tone/volume chain. The balance between the front and rear channel can be controlled by attenuation of either the front or the rear channel. Control range with a step size of 1 dB. Optionally the fader attenuation can be activated for front and rear channels together. ...
Page 14
... NXP Semiconductors Table 4. Code MSA Data P 8.1 Read mode Application restriction to use the read mode: Read transmissions should not be stopped after read byte 4 (IFBW) since this will disturb level read-out, weak signal processing and bandwidth control. Read transmission can be stopped after any of the other read bytes ...
Page 15
... NXP Semiconductors Table 7. Bit Table 8. IF counter result IFC3 IFC2 IFC1 IFC0 Deviation from nominal value in FM IFCA = kHz to 1 kHz kHz to 2 kHz kHz to 3 kHz kHz to 4 kHz kHz to 5 kHz kHz to 6 kHz kHz to 7 kHz kHz to 8 kHz ...
Page 16
... NXP Semiconductors tuning time counter time C-bus reset f2 register Fig 5. IF counter in FM mode after tuning tuning for AF update time counter time C-bus reset hold of counter result of f2 until read-out register Fig 6. IF counter in FM mode during and after AF update TEF6904A_3 ...
Page 17
... NXP Semiconductors 8.1.2 Read mode: data byte LEVEL Table 9. 7 LEV7 Table 10. Bit After AF update sampling the level read value is held (indicated by IFCM = 10) for easy 2 I C-bus read-out. The level detector remains active in the background. The LEV data hold is released after I To reduce the infl ...
Page 18
... NXP Semiconductors 8.1.3 Read mode: data byte USN/WAM Table 11. 7 USN3 Table 12. Bit After AF update sampling the USN and WAM read value is held (indicated by IFCM = 10) for easy I The USN and WAM data hold is released after I 8.1.4 Read mode: data byte MOD Table 13 ...
Page 19
... NXP Semiconductors Table 15. MOD4 MOD3 MOD2 MOD1 MOD0 FM radio The indicated amplitude levels are approximate values. In the case of FM radio, carrier modulation is measured (MPX FM deviation). Timing is fixed with fast 30 ms release time. Depending upon reception conditions and internal offsets small modulation levels may be indicated as MOD[4: 0000b. After AF update sampling the MOD read value is held (indicated by IFCM = 10) for easy I The MOD detector remains active in the background ...
Page 20
... NXP Semiconductors With external source selection and VU-meter mode enabled (AVUM = 1 or COMP = 1) the audio input level of the external source is indicated (i.e. the audio level as found on the line input pins). For stereo signals left and right channels are combined for MOD read (0 ...
Page 21
... NXP Semiconductors 8.1.7 Read mode: data byte TEMP Table 20. 7 TEMP7 Table 21. Bit 8.2 Write mode The device is controlled by the I byte contains the control of the tuning action via the bits MODE[2:0] and subaddressing via bits SA[4:0] (see All circuits are controlled by the CONTROL register. Any data change in the CONTROL register has immediate effect and will change the operation of the circuit accordingly ...
Page 22
... NXP Semiconductors After power-on reset, all registers, including the reserved registers, should be initialized with their default settings (see The tuning mute circuit is muted. An action of the state machine is required to de-mute the circuit, for this purpose preset mode (bits MODE[2:0] = 001) is best fitted since it assures fast settling of all parameters before mute is released ...
Page 23
... NXP Semiconductors IF COUNTER WS DETECTORS WS PROCESSING TUNING MUTE Fig 8. I TEF6904A_3 Product data sheet 2 I C-BUS MODE LOAD MODE DECODER PRESET, SEARCH STATE MACHINE AFU, JUMP, CHECK 2 C-bus and state machine control Rev. 03 — 20 March 2008 TEF6904A Integrated car radio SA = 00h to 05h ...
Page 24
... NXP Semiconductors BUFFER CONTROL Fig 9. Write without state machine action, no preload, no register swap TEF6904A_3 Product data sheet MODE = buffer or end address MSA byte 2 byte 3 previous byte 0 previous byte 1 previous byte 2 previous byte 3 previous byte 4 previous byte 5 byte 0 current byte 1 current byte 2 ...
Page 25
... NXP Semiconductors BUFFER CONTROL Fig 10. Write with state machine action and swap, no preload TEF6904A_3 Product data sheet MODE = AFU, jump or check address MSA byte 2 byte 3 byte 0 previous byte 1 previous byte 2 previous new byte 3 previous previous byte 4 byte 5 previous byte 0 current byte 1 ...
Page 26
... NXP Semiconductors BUFFER CONTROL Fig 11. Write with state machine action, preload and swap TEF6904A_3 Product data sheet MODE = preset or search address MSA byte 3 byte 4 previous current byte 0 previous current byte 1 previous current byte 2 previous current new byte 3 previous current byte 4 previous ...
Page 27
... NXP Semiconductors BUFFER CONTROL Fig 12. Write without state machine action, with preload and swap 8.2.1 Mode and subaddress byte for write Table 23. 7 MODE2 Table 24. Bit TEF6904A_3 Product data sheet MODE = load address MSA byte 3 byte 0 previous current byte 1 previous current ...
Page 28
... NXP Semiconductors Table 25. MODE2 MODE1 MODE0 Symbol Since buffer mode (bits MODE[2:0] = 000) does not change any tuner action or register other then those defined by the I for writing outside the buffered subaddress range (i.e. bits SA[4:0] = 06h to 1Fh). Writing in the subaddress range of 06h to 1Fh is executed immediately and is not controlled by the state machine ...
Page 29
... NXP Semiconductors 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 13. Preset mode 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 14. Preset mode, started during mute ...
Page 30
... NXP Semiconductors 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 15. Search mode 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 16. Search mode, started during mute ...
Page 31
... NXP Semiconductors 2 I C-bus time tuning register SWAP IF counter reset quality detector reset IF counter hold quality detector hold tuning mute WS processing TAS read Fig 17. AF update mode 2 I C-bus time tuning register SWAP IF counter reset quality detector reset IF counter hold quality detector hold ...
Page 32
... NXP Semiconductors 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 19. Jump mode 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 20. Jump mode, started during mute ...
Page 33
... NXP Semiconductors 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 21. Check mode 2 I C-bus time tuning register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read Fig 22. Check mode, started during mute ...
Page 34
... NXP Semiconductors 2 I C-bus time tuning mute WS processing TAS read Fig 23. End mode 8.2.2 Write mode: data byte BANDWIDTH Table 26. 7 DYN 1 Table 27. Bit and 0 TEF6904A_3 Product data sheet HOLD FAST '11' '00' BANDWIDTH - format of data byte 00h with default setting (buffered) ...
Page 35
... NXP Semiconductors Table 28. BW4 TEF6904A_3 Product data sheet FM IF bandwidth selection BW3 BW2 BW1 BW0 Rev. 03 — 20 March 2008 TEF6904A Integrated car radio DYN = 0 DYN = 1 57 kHz 57 kHz to 165 kHz 60 kHz 60 kHz to 165 kHz 64 kHz 64 kHz to 165 kHz 67 kHz 67 kHz to 165 kHz ...
Page 36
... NXP Semiconductors 8.2.3 Write mode: data bytes PLLM and PLLL Table 29. 7 RFGAIN 0 Table 30. 7 PLL7 0 Table 31. Bit 7 (PLLM (PLLM (PLLL) 8.2.4 Write mode: data byte DAA Table 32 Table 33. Bit TEF6904A_3 Product data sheet PLLM - format of data byte 01h with default setting (buffered) ...
Page 37
... NXP Semiconductors 8.2.5 Write mode: data byte AGC Table 34. 7 AGCSW 0 Table 35. Bit and 4 3 and TEF6904A_3 Product data sheet AGC - format of data byte 04h with default setting (buffered IFGAIN AGC - data byte 04h bit description Symbol Description AGCSW RF AGC switch ...
Page 38
... NXP Semiconductors 8.2.6 Write mode: data byte BAND Table 36. 7 BAND2 0 Table 37. Bit Table 38. BAND2 Table 39. FREF2 Different PLL charge pump currents are used for different reference frequencies to maintain best PLL loop stability; see Settings FREF[2:0] = 000 (100 kHz) and FREF[2:0] = 001 (50 kHz) include additional high current charge pump control to realize fast PLL locking within 1 ms ...
Page 39
... NXP Semiconductors Table 40. FREF2 [ don’t care. 8.2.7 Tuning overview High injection LO (Europe FM and AM ---------------------------------------------------- - Low injection LO (Japan FM and OIRT ---------------------------------------------------- - tuning step where the divider ratio of the VCO frequency for AM mixer 1 and FM mixer -------------- - f mixer 1 Table 41. Broadcast band Europe FM and US FM 001 Japan FM ...
Page 40
... NXP Semiconductors 8.2.8 Write mode: data byte LEVELALGN Table 42. 7 LST4 1 Table 43. Bit For I C-bus reading of the level voltage and standard alignment see read data byte 1 (see Table Level alignment should begin with slope alignment (LSL): the level slope does not change with level start alignment (LST) or broadcast band ...
Page 41
... NXP Semiconductors 8.2.10 Write mode: data byte IFCAP Table 46. 7 IFCAPA 0 Table 47. Bit The fully integrated IF2 filter of the TEF6904A has to be aligned in order to achieve the optimum performance at all ambient conditions. 8.2.10.1 Factory alignment of bits IFCAP[3: filter operation point alignment: data byte IFCAP: a single alignment of the FM IF fi ...
Page 42
... NXP Semiconductors 5. Change IFCF from and note the level read result (level voltages) 6. Test low side of filter curve: tune to f (Japan/OIRT) 7. Change IFCF from and note the level voltages 8. Find the IFCF value where both level curves cross (lowest difference) and save this IFCF value 9 ...
Page 43
... NXP Semiconductors 8.2.12 Write mode: data byte SENSE Table 50. 7 CSA3 1 Table 51. Bit and 2 1 and 0 The input control value for weak signal control derived from USN is denoted by V equivalent level voltage. This indicates a weak signal control amount equal to the weak signal control generated by a certain V The USS setting does not infl ...
Page 44
... NXP Semiconductors 4 V eq. LEVEL (V) 3 USS [ 1 C-bus: USN = 0 a. MPX signal. Fig 24. Weak signal control sensitivity versus MPX signal at 150 kHz (USN) and level variation at 21 kHz (WAM) 8.2.13 Write mode: data byte TIMING Table 52. TIMING - format of data byte 0Bh with default setting ...
Page 45
... NXP Semiconductors Table 55. HTC2 [1] When for an external audio source VU-meter mode is enabled (bits AVUM or COMP are logic 1) the HTC setting controls the t Table 56. MTC2 [1] When for an external audio source dynamic compression is enabled (bit COMP is logic 1) the MTC setting controls the t [2] The attack time is the time, which the weak signal processing needs to realize a full control change for a level voltage change between HIGH level (where the weak signal processing is inactive) and 0 ...
Page 46
... NXP Semiconductors 8.2.14 Write mode: data byte SNC Table 57. 7 SST3 0 Table 58. Bit and Table 59. SST3 TEF6904A_3 Product data sheet SNC - format of data byte 0Ch with default setting SST2 SST1 SST0 SNC - data byte 0Ch bit description Symbol Description SST[3:0] SNC start; start setting of the stereo noise control; see ...
Page 47
... NXP Semiconductors Table 60. HCC minimum bandwidth HCSFH HCSF High cut control minimum bandwidth 0 0 2.2 kHz 0 1 3.3 kHz 1 0 3.9 kHz 1 1 5.6 kHz 40 cs (dB SST[3:0] 10 0000 0111 0 0.5 1 1.5 SSL = 63 dB/V. a. Start. Fig 25. SNC start and slope settings versus equivalent level voltage; SNC detector (level, USN and WAM), USN detector and WAM detector 8 ...
Page 48
... NXP Semiconductors Table 63. HST2 Table 64. HCF2 TEF6904A_3 Product data sheet Start of high cut control weak signal processing HST1 HST0 Fixed high cut settings HCF1 HCF0 Rev. 03 — 20 March 2008 TEF6904A Integrated car radio High cut control start (V eq.LEVEL 1.5 V 1. ...
Page 49
... NXP Semiconductors 0 HST[2:0] 10 kHz (dB) 3 000 001 010 011 6 9 100 12 15 0.5 1.5 HCF = 111, HCSF = 0, HCSFH = 0, HSL = 10. a. Start. Fig 26. High cut control start and slope settings versus equivalent level voltage; HCC detector (HCMP = 0 for level or HCMP = 1 for level, WAM and USN) Fig 27 ...
Page 50
... NXP Semiconductors 8.2.16 Write mode: data byte SOFTMUTE Table 65. 7 MST2 0 Table 66. Bit and 3 2 and 1 0 [1] When for an external audio source dynamic compression is enabled (bit COMP is logic 1) the MSL setting controls the compression ratio. For default compression MSL = 01 is used; see Table 67 ...
Page 51
... NXP Semiconductors Table 68. MST2 [1] When for an external audio source dynamic compression is enabled (COMP = 1) the MST setting controls the compression range. For default full compression MST = 7 is used; see Table 69. MSLE [1] When for an external audio source dynamic compression is enabled (COMP = 1) the MSL setting controls the compression range. For default compression MSL = 1 is used ...
Page 52
... NXP Semiconductors 0 mute (dB) 12 101 110 000 24 111 001 010 011 100 36 48 0.5 1.0 1.5 MSL[1:0] = 11. a. Start. Fig 28. Soft mute start and slope settings versus equivalent level voltage (FM mode) TEF6904A_3 Product data sheet 001aad656 0 mute (dB) MST[2: (0E) (1E 2.0 2.5 ...
Page 53
... NXP Semiconductors 0 mute (dB 0.5 1.0 1.5 MSL[1:0] = 11. a. Start. Fig 29. Soft mute start and slope settings versus equivalent level voltage (AM mode) MST[2:0] = 011, MSL[1:0] = 10. Fig 30. USN soft mute depth settings; USN detector TEF6904A_3 Product data sheet 001aad657 mute (dB) MST[2:0] 011 12 100 ...
Page 54
... NXP Semiconductors 8.2.17 Write mode: data byte RADIO Table 71 Table 72. Bit and 2 1 and 0 TEF6904A_3 Product data sheet RADIO - format of data byte 0Fh with default setting MONO DEMP RADIO - data byte 0Fh bit description Symbol Description - reserved normal operation MONO FM forced mono; stereo decoder disable option ...
Page 55
... NXP Semiconductors Fig 31. De-emphasis setting characteristics 8.2.18 Write mode: data byte INPUT Table 73. 7 INP3 0 Table 74. Bit TEF6904A_3 Product data sheet 8 gain (dB INPUT - format of data byte 10h with default setting INP2 INP1 INP0 INPUT - data byte 10h bit description Symbol Description INP[3:0] input selection ...
Page 56
... NXP Semiconductors Table 75. INP3 Table 76. ING3 [1] The input gain setting ING and the volume setting VOL define the overall volume. The overall range is limited +26 dB. For overall values > +28 dB the actual gain is +28 dB. For overall values < the circuit is muted. TEF6904A_3 Product data sheet ...
Page 57
... NXP Semiconductors Table 77. Input select pin use and suggested combinations of input sources INP[3:0] Input pin use INAL INAR INAC INAD INBL INBR INC 0000 0001 L R GND 0010 0011 0100 0101 0110 0111 1000 1001 L R 1010 M 1011 1100 L R 1101 ...
Page 58
... NXP Semiconductors Table 80. MTC2 [1] Setting MTC is also in use for setting the timing of weak signal soft mute control during radio operation. Table 81. MST2 [1] Setting MST is also in use for setting the start of weak signal soft mute control during radio operation. Table 82. MSL1 [1] Setting MSL is also in use for setting the slope of weak signal soft mute control during radio operation. ...
Page 59
... NXP Semiconductors Fig 32. Dynamic compression volume control; non-standard characteristics Fig 33. Dynamic compression volume control; typical setting TEF6904A_3 Product data sheet volume (dB) 0 (7, 0) ( dBV, (MST, MSL) control. volume (dB dBV, MST = 7 (MST[2:0] = 111), MSL = 1 (MSL[1:0] = 01). Rev. 03 — 20 March 2008 TEF6904A Integrated car radio ...
Page 60
... NXP Semiconductors Fig 34. Example of input to output compression Table 83. VOL6 TEF6904A_3 Product data sheet 0 line output (dBV) 20 COMP = 1; VOL = dBV. Dynamic compression is realized by attenuation of the volume setting. To match the audio amplitudes with and without compression a higher volume (VOL) setting should be selected when compression is activated. The VOL correction value used defines the positioning of the compression characteristic high signal attenuation and low signal amplifi ...
Page 61
... NXP Semiconductors Table 83. VOL6 TEF6904A_3 Product data sheet Volume setting …continued VOL5 VOL4 VOL3 Rev. 03 — 20 March 2008 TEF6904A Integrated car radio VOL2 VOL1 VOL0 Volume (dB © NXP B.V. 2008. All rights reserved 108 ...
Page 62
... NXP Semiconductors Table 83. VOL6 TEF6904A_3 Product data sheet Volume setting …continued VOL5 VOL4 VOL3 Rev. 03 — 20 March 2008 TEF6904A Integrated car radio VOL2 VOL1 VOL0 Volume (dB [2] 57 [2] 58 [2] 59 [2] 60 [2] 61 [2] 62 [2] 63 [2] 64 [2] 65 [2] 66 [2] 67 [2] 68 [2] 69 [2] 70 [2] ...
Page 63
... NXP Semiconductors Table 83. VOL6 [1] The overall gain is the sum of the input gain setting ING[3:0] and the volume setting VOL[6:0]. The overall gain has a range of + dB. For ING + VOL > the overall gain is 28 dB. For ING + VOL < the mute is active. [2] For overall gain values below 75 dB (ING + VOL < 75 dB) the gain steps have a monotonous sequence. ...
Page 64
... NXP Semiconductors 8.2.20 Write mode: data byte TREBLE Table 84 Table 85. Bit and 1 0 Table 86. TRE2 TREM = TREM = TEF6904A_3 Product data sheet TREBLE - format of data byte 12h with default setting TRE2 TRE1 TRE0 TREBLE - data byte 12h bit description Symbol Description - reserved normal operation TRE[2:0] treble setting ...
Page 65
... NXP Semiconductors 16 gain (dB Fig 35. Treble amplitude control characteristics; treble frequency (TRF kHz 8.2.21 Write mode: data byte BASS Table 87. BASS - format of data byte 13h with default setting 7 6 BAS3 BAS2 0 0 Table 88. BASS - data byte 13h bit description Bit Symbol Description ...
Page 66
... NXP Semiconductors Table 89. Bass control setting BAS3 BAS2 BASM = BASM = bass (dB Fig 36. Bass amplitude control characteristics; bass frequency (BAF TEF6904A_3 Product data sheet BAS1 BAS0 Rev. 03 — 20 March 2008 TEF6904A Integrated car radio Bass control 001aab551 (kHz) audio © NXP B.V. 2008. All rights reserved. ...
Page 67
... NXP Semiconductors 8.2.22 Write mode: data byte FADER Table 90. 7 FADM1 0 Table 91. Bit 7 and TEF6904A_3 Product data sheet FADER - format of data byte 14h with default setting FADM0 FAD5 FAD4 FADER - data byte 14h bit description Symbol Description FADM[1:0] fader mode; enable fader control for front or rear fader ...
Page 68
... NXP Semiconductors 8.2.23 Write mode: data byte OUTPUT Table 92. 7 EXP1 0 Table 93. Bit 7 and [1] Output gain (OUTA) and output mute (MUxx) control is active for all signal selections. Fader control (FADM, FAD) is active for every signal selection except for the internal audio of ‘external I/O rear only’ mode at the front output ...
Page 69
... NXP Semiconductors INPL INPR 1 V INPUT 2 V INPUT SELECT 6 dB Fig 37. External processor connections 8.2.24 Write mode: data byte BALANCE Table 95. BALANCE - format of data byte 16h with default setting 7 6 BALM BAL6 1 0 Table 96. BALANCE - data byte 16h bit description Bit ...
Page 70
... NXP Semiconductors 8.2.25 Write mode: data byte LOUDNESS Table 98. 7 AVUM 0 Table 99. Bit [1] The VU-meter mode can be used with external sources only. When the VU-meter mode is active, the radio quality detection of USN, MOD and offset is limited to AF update tuning only. During VU-meter mode the bits MOD[4:0] indicate the external source input amplitude. The FM dynamic bandwidth control is disabled and a fi ...
Page 71
... NXP Semiconductors Table 101. Loudness start LDS2 LDS1 gain (dB LDON = 1, LDHB = 0. 12 gain (dB LDON = 1, LDHB = 1. Fig 38. Loudness control characteristics; loudness start = 20 dB, bass frequency = 60 Hz, treble frequency = 10 kHz; bass gain = 0 dB, treble gain = 0 dB TEF6904A_3 Product data sheet LDS0 Rev. 03 — 20 March 2008 ...
Page 72
... NXP Semiconductors 8.2.26 Write mode: data byte POWER Table 102. POWER - format of data byte 18h with default setting 7 0 Table 103. POWER - data byte 18h bit description Bit and and 0 [1] The power saving offered by the Standby modes is limited and is not intended to realize an effective power-down ...
Page 73
... NXP Semiconductors 8.2.28 Write mode: data bytes TEST Table 106. RESERVED - format of data byte 1Fh 7 6 RBWR 0 0 Table 107. TEST - data byte 1Fh bit description Bit Symbol Description 7 RBWR next reserved normal operation TEST[5:0] test mode 9. Limiting values Table 108. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134) ...
Page 74
... NXP Semiconductors 10. Thermal characteristics Table 109. Thermal characteristics Symbol Parameter R thermal resistance from junction to ambient in free air th(j-a) R thermal resistance from junction to case th(j-c) 11. Static characteristics Table 110. Static characteristics unless otherwise specified. CC amb Symbol Parameter Supply voltage V analog supply voltage on pins VCC, ...
Page 75
... NXP Semiconductors Table 110. Static characteristics unless otherwise specified. CC amb Symbol Parameter I supply current for tuning PLL CCPLL I supply current for VCO CCVCO I supply current for RF CCRF I supply current for FM filter and V60 demodulator I ; bias current of FM and AM mixer 1 at ...
Page 76
... NXP Semiconductors 12. Dynamic characteristics 12.1 Dynamic characteristics of the tuner Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter Crystal oscillator f crystal frequency xtal C/N carrier-to-noise ratio Circuit inputs: pins XTAL1 and XTAL2 V oscillator output voltage o(osc)(rms) (RMS value) ...
Page 77
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter I charge pump CP5 sink sink(CP5) current I charge pump CP5 source(CP5) source current Charge pump: pin VTUNE I charge pump sink sink current I charge pump source source current t tuning time ...
Page 78
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter V output voltage o AM channel AM RF AGC detector A: pin AMMIX1IN; see V AM AGC start level AMMIX1IN(p-p) (peak-to-peak value AGC detector B: pin AMIF2IN; see V IF voltage on pin AMIF2IN(p-p) AMIF2IN for AGC start ...
Page 79
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter C source current IAMAGC generator output capacitance V bias voltage for AM PIN VDCPIN diode R bias source resistance VDCPIN I maximum bias current bias(max) AM mixer 1 (IF1 = 10.7 MHz) Mixer input: pins AMMIX1IN and AMMIX1DEC ...
Page 80
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter Mixer output: pins AMMIX2OUT1 and AMMIX2OUT2 R output resistance o C output capacitance o V maximum output voltage o(max)(p-p) (peak-to-peak value) g conversion m(conv) transconductance I g conversion m(conv)(T) transconductance variation with ...
Page 81
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter C output capacitance o Z load impedance L RR ripple rejection V CC(ripple ---------------------------- - V MPXAMOUT AM level detector output: pin LEVEL Input: pins AMIF2IN and AMIF2DEC LST level start alignment position V step size for adjustment ...
Page 82
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter FM channel FM RF AGC (FM distance mode; LODX = 0) Inputs: pins FMMIX1IN1 and FMMIX1IN2 V RF input voltage for i(RF) start of wideband AGC PIN diode drive output: pin IFMAGC I maximum AGC source ...
Page 83
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter IRR image rejection ratio V owanted ------------------ - V oimage V maximum output voltage o(max)(p-p) (peak-to-peak value) FM filter and demodulator Tunable filter B maximum bandwidth max B minimum bandwidth min f FM IF2 center frequency ...
Page 84
... NXP Semiconductors Table 111. Dynamic characteristics of the tuner see Figure CC amb Symbol Parameter V output voltage o f cut-off frequency cut RR ripple rejection V CC(ripple ---------------------------- - V MPXAMOUT FM level detector output: pin LEVEL R output resistance o R load resistance L C load capacitance L LST level start alignment ...
Page 85
... NXP Semiconductors JFET RFIN LNA pin diode TRFAGC IAMAGC VAMCASFB reduce cascode AGC control range KAGC Fig 39. AM AGC circuit 12.2 Dynamic characteristics of the sound processor Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT ...
Page 86
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter S/N signal-to-noise ratio THD total harmonic distortion V mono channel balance o(bal -------- - V oR pilot signal suppression 19 subcarrier suppression ...
Page 87
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter V noise blanker sensitivity MPXAMIN(M) at MPXAMIN input (peak value of noise pulses) V noise blanker sensitivity LEVEL(M) at LEVEL output (peak value of noise ...
Page 88
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter Setting of time constants for SNC, MUTE and HCC t USN detector attack time soft mute and SNC USN(attack) ...
Page 89
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter Control functions V soft mute start voltage start(mute) TEF6904A_3 Product data sheet …continued 42; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; ...
Page 90
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter C soft mute slope mute C = -------------------------- - mute V eq.LEVEL maximum soft mute mute(max) attenuation by USN V SNC stereo blend start start(SNC) ...
Page 91
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter C SNC slope SNC C = -------------------------- - SNC V eq.LEVEL V HCC start voltage start(HCC) C HCC slope HCC C = -------------------------- - HCC V eq.LEVEL maximum HCC HCC(max) ...
Page 92
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter Analog-to-digital converters for I Level analog-to-digital converter (8-bit); see V lower voltage limit of LEVEL(min) conversion range V upper voltage limit of ...
Page 93
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter G signal gain to external s(ext)o output V maximum input voltage i(max) V maximum input voltage i(ext)(max) at external processor inputs ...
Page 94
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter THD total harmonic distortion channel separation cs input isolation of one S selected source to any other input V noise voltage noise(rms) ...
Page 95
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter PSRR power supply ripple rejection crosstalk between bus ct inputs and signal outputs t delay time from V d applied to final ...
Page 96
... NXP Semiconductors Table 112. Dynamic characteristics of the sound processor see Figure CC amb bass filter frequency; bass = 0 dB; f (byte OUTPUT; bit OUTA = 0 Symbol Parameter Treble f treble control filter treble frequency G treble gain control treble G step resolution gain step(treble) G treble step error ...
Page 97
... NXP Semiconductors [2] Crosstalk between bus inputs and signal outputs: [3] The input gain setting ING and the volume setting VOL define the overall volume. The overall range is limited +28 dB. For values > +28 dB the actual value is +28 dB. For overall values < the actual value is mute. ...
Page 98
... NXP Semiconductors SDA SCL V IL(max) a. Data change from LOW to HIGH. Fig 40. Data output reaction time of the IC Fig 41. Definition of the fall time of the output signal TEF6904A_3 Product data sheet t DOR(LH) 001aac124 b. Data change from HIGH to LOW 0. Rev. 03 — 20 March 2008 ...
Page 99
... NXP Semiconductors 14. Overall system parameters Table 114. Overall system parameters Symbol Supply current in FM mode I CC Supply current in AM mode overall system parameters f tune V sens S/N THD IP3 FM overall system parameters f tune V sens (S+N)/N THD IP3 TEF6904A_3 Product data sheet Parameter ...
Page 100
MHz 100 2 vco V P STEREO BLANKER 1 nF DECODER 270 pF DIV 78 ÷2 f REF snc BB208 L1 ...
Page 101
... SFELA10M7HAA0-B0 CFWLA450KGFA-B0 Rev. 03 — 20 March 2008 TEF6904A Integrated car radio Manufacturer - - - - TOKO SAGAMI TOKO TOKO NDK NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors muRata muRata © NXP B.V. 2008. All rights reserved. 101 of 108 ...
Page 102
... NXP Semiconductors 16. Package outline QFP80: plastic quad flat package; 80 leads (lead length 1.6 mm); body 2 pin 1 index DIMENSIONS (mm are the original dimensions) A UNIT max. 0.25 2. 0.25 0.10 2.55 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION IEC ...
Page 103
... NXP Semiconductors 17. Soldering This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 “Surface mount reflow soldering description” . 17.1 Introduction to soldering Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits ...
Page 104
... NXP Semiconductors 17.4 Reflow soldering Key characteristics in reflow soldering are: • Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to higher minimum peak temperatures (see reducing the process window • Solder paste printing issues including smearing, release, and adjusting the process window for a mix of large and small components on one board • ...
Page 105
... Release date TEF6904A_3 20080320 • Modifications: The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. • Legal texts have been adapted to the new company name where appropriate. • Table 107: test mode description corrected ...
Page 106
... Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice ...
Page 107
... NXP Semiconductors 21. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 3 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 7 Functional description . . . . . . . . . . . . . . . . . . . 7 7.1 FM mixer 7 AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7.3 FM mixer 7.4 FM IF2 channel filter . . . . . . . . . . . . . . . . . . . . . 8 7.5 FM limiter and level detection . . . . . . . . . . . . . . 8 7 ...
Page 108
... NXP Semiconductors C-bus characteristics . . . . . . . . . . . . . . . . . . 97 14 Overall system parameters . . . . . . . . . . . . . . . 99 15 Application information 100 16 Package outline . . . . . . . . . . . . . . . . . . . . . . . 102 17 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 17.1 Introduction to soldering . . . . . . . . . . . . . . . . 103 17.2 Wave and reflow soldering . . . . . . . . . . . . . . 103 17.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 103 17.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 104 18 Revision history . . . . . . . . . . . . . . . . . . . . . . . 105 19 Legal information 106 19 ...