E-TDA7404D STMicroelectronics, E-TDA7404D Datasheet
E-TDA7404D
Specifications of E-TDA7404D
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E-TDA7404D Summary of contents
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... SO-28 The device includes a high performance audioprocessor with fully integrated audio filters. The digital control allows a programming in a wide range of all the filter characteristics. By the use of a BiCMOS process and a linear signal processing low distortion and low noise are obtained. Package ...
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... Contents Contents 1 Detailed features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Block and pin description diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1 Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4 ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 Description of functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 Input stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 AutoZero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.2.1 4.3 Mixing stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.4 Loudness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4 ...
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... TDA7404 5 I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.1 Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Transmitted data (send mode 5.3 Reset condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.4 Subaddress (receive mode 5.5 Data byte specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Contents 3/35 ...
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... Bass programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Table 13. Speaker attenuator left front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Table 14. Speaker attenuator right front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Table 15. Speaker attenuator left rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 16. Speaker attenuator right rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 17. Subwoofer attenuator (left and right Table 18. Soft-mute and mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Table 19. Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 20. Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 21. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4/35 ...
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... Soft-step timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 10. Bass control @ f C Figure 11. Bass center frequencies @ gain = 15 dB Figure 12. Bass quality factors @ gain = 14 dB, f Figure 13. Bass normal and DC mode @ gain = 14 dB Figure 14. Treble control @ fC = 17.5kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 15. Treble center frequencies @ Gain = Figure 16. External AC coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 17. Software specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 18. ...
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... Detailed features ● Input multiplexer – 1 pseudo-differential stereo input (selectable single end stereo input) – 3 single-end stereo inputs – 1 differential mono input – In-Gain 0..14 dB steps, 14..20 dB steps – Auto Zero ● Beep – internal beep with 3 frequencies – 781 Hz/1.56 kHz/1.8 kHz ● ...
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... TDA7404 2 Block and pin description diagrams Figure 1. Block diagram MIX DiffinL Diffgnd DiffinR SE1L SE1R SE2L SE2R SE3L SE3R Mono/Beep Mono+ Mono - Figure 2. Pin connection (top view) Beep Digital Control I Supply Gnd Vref Vcc SE1L 1 SE1R 2 SE2L 3 SE2R 4 SE3L 5 SE3R 6 Mono+ ...
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... Absolute maximum ratings Symbol V Operating supply voltage s T Operating temperature range amb T Storage temperature range stg 3.4 ESD All pins are protected against ESD according to the MIL883 standard. 8/35 Test condition Audioprocessor (all Filters flat) Parameter Parameter TDA7404 Min. Typ. Max. ...
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... Differential mono input R Input resistance in CMRR Common mode rejection ratio Beep control V Beep level RMS f Beep frequency B =10 kΩ; all gains = 0 dB kHz; unless otherwise specified) L Test conditions all single ended Inputs Adjacent gain steps MIN MAX Differential only at true differential input V ...
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... Low threshold for SM pin TH low V High threshold for SM pin TH high R Internal pull-up resistor PU V Pull-up voltage PU 10/35 =10 kΩ; all gains = 0 dB kHz; unless otherwise specified) L Test conditions Main / mix-source Main / mix-source Main / mix-source Main / mix-source G = - -80 to -20 dB Adjacent steps From MIN ...
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... Center frequency C Speaker attenuator C Control range RANGE A Step resolution STEP A Output mute attenuation MUTE E Attenuation set error steps DC T Zero cross timer ZC V Zero cross threshold th =10 kΩ; all gains = 0 dB kHz; unless otherwise specified) L Test conditions T SW1 T SW2 T SW3 T SW4 ...
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... Channel separation left/right C E Total tracking error T 1. The SM-Pin is active low (Mute = 0). 2. Center frequency 2.4 kHz makes 1kHz bottom frequency at low and high frequency boost condition. 12/35 =10 kΩ; all gains = 0 dB kHz; unless otherwise specified) L Test conditions d = 0.3% ...
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... CD-players. Figure 3. Input stages diagram Diffin+ /(SE 4) Diffgn d Mon o+ Mon possible that the Differential input is switched a single ended input (SE4) like SE1.. 3. Figure 3). In the meantime there are some CD-players in 28k 28k 28k 28k Description of functionality 13/35 ...
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... AutoZero-action because no new source is selected and an undesired mute would appear at the outputs. For such applications the TDA7404 could be switched in the AutoZero-Remain-Mode (I2 bit of the subaddress-byte). If this bit is set to high, the DATABYTE 0 could be loaded without invoking the AutoZero and the old adjustment-value remains. 4.3 ...
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... There are four parameters programmable in the loudness stage: 4.4.1 Attenuation Figure 5 shows the attenuation as a function of frequency at f Figure 5. Loudness attenuation @ 4.4.2 Center frequency Figure 6 shows the three possible peak-frequencies 400 Hz, 800 Hz and 2.4 kHz. Figure 6. Loudness center frequencies @ Attn Description of functionality = 400 Hz 400 ...
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... C bus. This slope is realized in a special S-shaped curve to mute slow in the critical regions (seeFigure For timing purposes the Bit 0 of the I muting until the end of de-muting. Figure 8. Soft-mute timing 1. Please notice that a started Mute-action is always terminated and could not be interrupted by a change of the mute -signal. 16/35 = 2.4 kHz ...
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... Figure 9. Soft-step timing Vou t 2dB 1dB -1dB -2dB 1. For steps more than 1 dB the soft-step mode should be deactivated because it could generate error during the blend-time. 4.7 Bass There are three parameters programmable in the bass stage: 4.7.1 Attenuation Figure 10 shows the attenuation as a function of frequency at a center frequency of 80Hz ...
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... Description of functionality 4.7.2 Center frequency Figure 11 shows the four possible center frequencies 60, 80,100 and 200 Hz. Figure 11. Bass center frequencies @ gain = 15 dB 4.7.3 Quality factors Figure 12 shows the four possible quality factors 1, 1.25, 1.5 and 2. Figure 12. Bass quality factors @ gain = 14 dB, f 15.0 12 ...
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... TDA7404 4.7.4 DC mode In this mode the DC-gain is increased by 4.4 dB. In addition the programmed center frequency and quality factor is decreased which can be used to reach alternative center frequencies or quality factors. Figure 13. Bass normal and DC mode @ gain = 14 dB, f 15.0 12.5 10.0 7.5 5.0 2.5 ...
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... There are two parameters programmable in the treble stage: 4.8.1 Attenuation Figure 14 shows the attenuation as a function of frequency at a center frequency of 17.5 kHz. Figure 14. Treble control @ 4.8.2 Center frequency Figure 15 shows the four possible center frequencies and 17.5 kHz. Figure 15. Treble center frequencies @ Gain = 20/35 = 17.5kHz ...
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... Speaker attenuator Due to practical aspects the steps in the speaker-attenuator are not linear over the full range. At attenuations more than 24 dB the steps increase from 1 (please see data byte specification). 4.11 Subwoofer attenuator The Subwoofer output is a single ended stereo output. The attenuator is exactly the same like the other speakers ...
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... The transmitted data is automatic updated after each ACK. Transmission can be repeated without new chipaddress. 5.3 Reset condition A Power on reset is invoked if the supply voltage is below than 3.5V. After that the following data is written automatically into the registers of all subaddresses: MSB 1 The programming after POR is marked bold-face / underlined in the programming tables. ...
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... For more information 2. For more information see 3. For more information see Test Programming block 4. If this bit is set to "1", the subaddress is automatically increased after the transmission of a data-byte. Therefore a transmission of more than one byte without sending the new subaddress is possible ...
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... I2C bus interface 5.5 Data byte specification Table 8. Input selector / gain MSB 24/ LSB Function Source selector Mono Differential 0 0 Single Ended Mute 1 0 Single Ended Pseudo Differential / Single Ended Single Ended Mute 1 1 Beep Input gain TDA7404 ...
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... Note 1: The attenuation is specified at high frequencies. Around the center frequency the value is different depending on the programmed attenuation (see Table 10. Volume MSB Note not recommended to use a gain more than 20 dB for system performance reason. In general, the max. gain should be limited by software to the maximum value, which is needed for the system ...
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... I2C bus interface Table 11. Treble programming MSB 26/ LSB Function Treble Steps Mode Cut Boost Treble Center Frequency 10 kHz 12.5 kHz 15 kHz 17.5 kHz TDA7404 ...
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... TDA7404 Table 12. Bass programming MSB Note 3: For more information please refer Section 4.7: Bass. I2C bus interface LSB Function Bass steps Mode Cut Boost Quality Factor 1 1.25 1 Mode Off On 27/35 ...
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... I2C bus interface Table 13. Speaker attenuator left front MSB Table 14. Speaker attenuator right front MSB 28/ LSB Function Attenuation - - Speaker Mute Bass Center-Frequency 100 Hz 200 Hz LSB Function Attenuation - - Speaker Mute TDA7404 ...
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... TDA7404 Table 15. Speaker attenuator left rear MSB Table 16. Speaker attenuator right rear MSB I2C bus interface LSB Function Attenuation - - Speaker mute LSB Function Attenuation - - Speaker mute 29/35 ...
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... I2C bus interface Table 17. Subwoofer attenuator (left and right) MSB Table 18. Soft-mute and mixing MSB 30/ LSB Function Attenuation - - Speaker Mute LSB Function Mute 0 enable soft-mute 1 disable soft-mute Mute/Zero Cross-Times 122 Mixing-Source Beep Phone Mixing-Level (Main / Mix-Source) - -3 /∞ ...
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... I2C bus interface Function AC coupling Internal pass Coupling between Mixing Stage and Volume Coupling between Bass filter and Speaker attenuator Must be "1" for make up Must be "1" for make up Soft Step Time 0.68ms 1.26ms 2.52ms 5.04ms Must be "1" for AutoZero Internal Beep ...
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... Application circuit 6 Application circuit Figure 18. TDA7404 application circuit SE1L TapeL 100n SE1R TapeR 100n SE2L FM_L 100n SE2R FM_R 100n SE3L AM_L 100n AM_R SE3R 100n MONO+ Phone 100n MONO - PhoneGnd 100n DiffinL CD_L 100n DiffinGnd CDGnd 100n DiffinR CD_R 100n ...
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... TDA7404 7 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK trademark. Figure 19. SO-28 mechanical data and package dimensions DIM. ...
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... Revision history 8 Revision history Table 21. Document revision history Date 15-Jul-2003 16-Dec-2008 34/35 Revision 1 Initial release. Document reformatted. Added Table 1: Device summary on page Updated Section 7: Package TDA7404 Changes 1. information. ...
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