TDA7415CB STMicroelectronics, TDA7415CB Datasheet
TDA7415CB
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TDA7415CB Summary of contents
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... Order code TDA7415CB June 2009 Car-radio multimedia signal processor (CMSP) Description The TDA7415CB is the first 6-channel multimedia approach in the car-radio signal processor (CSP) family. It features full software programmability of three independent sections. The signal processor combines a three band audio tone control with an ...
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... Main signal processing path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Output section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Bus and control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Bass filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Mid filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Treble filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Room EQ filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 High pass filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Low pass (subwoofer) filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Line driver output stage (presenting the reference concept Soft mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Doc ID 14100 Rev 3 TDA7415CB ...
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... TDA7415CB 5.4 Spectrum analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.5 DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6 Digital interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.1 Interface in SPI -mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.2 I2C bus interface description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 7 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7.1 Data byte specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 8 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 9 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Doc ID 14100 Rev 3 Contents 3/50 ...
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... Output section, subwoofer low-pass filter (addr. 17 Table 27. Output section, bus-mutes (addr. 20 Table 28. DC-detector and other output section settings (addr. 21 Table 29. Soft-mute and soft-step fader time (addr. 22 Table 30. Spectrum analyzer settings (addr. 23 Table 31. Testing * (addr. 31 Table 32. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 4/50 Doc ID 14100 Rev 3 TDA7415CB ...
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... TDA7415CB List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. Pin connection (top view Figure 3. Signal-flow input-section (the following soft-mute and output buffer are not shown Figure 4. Bass control range; fC= 60Hz Figure 5. Bass center frequencies; gain= 15dB Figure 6. Bass filter quality factors; f Figure 7. Bass DC-mode frequency responses ...
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... Block diagram 1 Block diagram Figure 1. Block diagram 6/50 Doc ID 14100 Rev 3 TDA7415CB ...
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... TDA7415CB 2 Pin description 2.1 ESD: All pins are protected against ESD according to the MIL883 standard. 2.2 Thermal data Table 2. Thermal data Symbol R Thermal resistance junction-to-pins th j-pins 2.3 Pin assignment Figure 2. Pin connection (top view) Description Doc ID 14100 Rev 3 Pin description Value ...
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... Main signal path input, right channel 3.3V-reference decoupling pin, connects to external Ref3V3 capacitor Mute0 OUT-section, signal path 0 (front) direct mute Mute1 OUT-section, signal path 1 (rear) direct mute Mute2 OUT-section, signal path 2 (other) direct mute ACout L Main signal path output, left channel Doc ID 14100 Rev 3 TDA7415CB Description ...
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... TDA7415CB Table 3. Pin description (continued) Direction PIN ( input, O= output, OC =open collector, P= passive external component, S= supply Name ACout R Main signal path output, right channel ACin3 R OUT-section, AC-coupled input 3, right channel ACin3 L OUT-section, AC-coupled input 3, left channel ACin2 R OUT-section, AC-coupled input 2, right channel ...
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... Deatailed features 3 Deatailed features The TDA7415CB is composed of four major building blocks. - The IN-section, the spectrum- analyzer, the main signal processing path and the OUT-section; Individually featuring: IN section ● Three independent signal-paths (front, rear and auxiliary) with independent soft-mute. ● Six stereo inputs; 3 single ended; 1 single ended or full differential mono; 2 quasi- differential. ● ...
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... TDA7415CB 4 Electrical specification 4.1 Supply Table 4. Supply Symbol V Supply voltage CC Supply current (line V P driver) I Total supply current total SVRR Ripple rejection @ 1 kHz Audio processor (all filters flat) 4.2 Absolute maximum ratings Table 5. Absolute maximum ratings Symbol V Operating supply voltage CC V Operating supply voltage ...
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... RMS 55 62 141 157 356 396 0.9 1 2.26 2.51 5.70 6.34 14.4 16.0 1.40 1.75 2.80 3 TDA7415CB Max. Unit - - 1 0 µ RMS - kΩ Ω 100 3.5 V 130 kΩ RMS 3.3 ...
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... TDA7415CB Table 6. Input section (continued) Symbol Parameter t Read-out cycle repeat time repeat t Internal reset time intres t Reset pulse width SAres 1. All differential inputs or differential configurations have -3 dB input gain. 4.3.2 Main signal processing path Table 7. Main signal processing path Symbol Parameter ...
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... DC-mode= off DC-mode Non-uniform, see description Doc ID 14100 Rev 3 TDA7415CB Min. Typ. Max. Unit 0.9 1 1.1 - 1.13 1.25 1.38 - 1.35 1.5 1.65 - 1 3.5 4.4 5.5 dB ±13 ±15 ±17 dB 0.5 1 1.5 dB 450 500 550 Hz 0.9 1 1.1 kHz 1.35 1.5 1.65 kHz 1 ...
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... TDA7415CB 4.3.3 Output section otherwise specified Table 8. Output section Symbol Parameter R Input impedance in V Input Clipping Level CL ATT Mute Attenuation MUTE Soft-mute completion time, t SMC ramp-up or -down Volume (Soft-step) G Max. gain MAX A Max. attenuation MAX A Step resolution STEP E Attenuation set error ...
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... RMS All tone filters +10 dB; A-weighted 1 RMS all stages 0 dB OUT RMS All tone filters +10 dB; A-weighted 1 RMS - - - Doc ID 14100 Rev 3 TDA7415CB Min. Typ. Max. Unit 2.20 2.75 V RMS 3. RMS 1.0 kΩ 100 3.8 4.0 4 ...
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... TDA7415CB 4.3.5 Bus and control inputs Table 10. Bus and control inputs 2 (I C/SPI, spectrum analyzer, direct-mute, offset detector) Symbol Parameter V Input low voltage IL V Input high voltage IH V Input threshold voltage TH V Input threshold hysteresis - TH I Input current IN SPI-mode threshold V TH,SPI ...
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... This chapter will give more insight into the different blocks and describe their function. 5.1 Input section The Input-Section of the TDA7415CB incorporates three independent stereo signal paths, where each can connect to a variety of inputs and the AC3 input from the Output-section for monitoring purposes. For simplicity only the left inputs are shown. ...
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... TDA7415CB The CD-Changer- and Auxiliary/Navigation-inputs are quasi-differential inputs, where the 'out-of-phase' or ground signals of both channels share one common input. The Minidisk- input (MD) may be reconfigured for a true mono differential input as required by many phone units. Please note that all differential inputs dampen the signal by 3dB. ...
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... Bass center frequencies; gain= 15dB, Q= 1.0 3. Quality factor: Figure 6. Bass filter quality factors; f 20/50 Figure 5 shows all the selectable center frequencies at a gain of Figure 6 shows the four selectable filter quality factors at a gain of 15dB = 60Hz, gain= 15dB. C Doc ID 14100 Rev 3 TDA7415CB ...
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... TDA7415CB 4. DC-mode: Figure 7 mode the DC-gain is increased by 4.4dB. In addition the programmed center frequencies and quality factors are decreased by 25%, which realizes alternative frequency responses. Figure 7. Bass DC-mode frequency responses; gain= 15dB, Q= 1.5 5.2.2 Mid filter There are three parameters programmable in the mid-filter stage. ...
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... Mid center frequencies; gain= 15dB, Q= 1.0 3. Quality Factor: 15dB. Figure 10. Mid filter quality factors; f 22/50 Figure 9 shows the four selectable center frequencies at a gain of Figure 10 shows the two selectable filter quality factors at a gain of = 1kHz, gain= 15dB C Doc ID 14100 Rev 3 TDA7415CB ...
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... TDA7415CB 5.2.3 Treble filter There are two parameters programmable in the treble-filter stage. 1. Control Range: center frequency. Figure 11. Treble control range Center frequency: 15dB Figure 12. Treble center frequencies; gain= 15dB, Q= 1.0 Figure 11 shows the control range in the frequency domain at 12.5kHz = 12.5kHz, Q= 1.0 ...
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... Figure 13. Room-EQ control range Notch frequency: 15dB Figure 14. Room-EQ notch frequencies; attenuation= -7dB, Q= 1.0. 24/50 Figure 13 shows the control range in the frequency domain at 200Hz = 200Hz, Q= 1.0 C Figure 14 shows the four selectable notch frequencies at a gain of Doc ID 14100 Rev 3 TDA7415CB ...
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... TDA7415CB 3. Quality factor: 15dB Figure 15. Room-EQ notch filter quality factors; f Figure 15 shows the two selectable filter quality factors at a gain of Doc ID 14100 Rev 3 Description of the audio processor = 200Hz, attenuation= 7dB. C 25/50 ...
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... Description of the audio processor 5.3 Output path As the Input-Section, the Output-Section of the TDA7415CB incorporates also three independent stereo signal paths, where each can connect to two out of four AC-coupled, single-ended inputs and to some dedicated signals originating from the input-section and/or main-signal-path. For simplicity only one channel is shown in switches follow the input selectors that can quickly toggle to the phone-, navigation-, or phone/navigation-mix signal independently for each signal path and single L/R-channel ...
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... TDA7415CB not needed or available, the line-driver output stages may be programmed for lower gain, still delivering 2.75V For programming of the Output-section, see the programming chapter Hereafter, the different circuits composing the Output-section will be presented. 5.3.1 High pass filter 1. Corner frequency: pass filter Figure 17. High-pass corner frequencies ...
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... Soft mute As can be seen from the block-diagram in figure 1, there are 6 soft-mute circuits placed inside the TDA7415CB: Three each, in both the Input-section and the Output-section that serve the independent signal-paths. A soft-mute can either be achieved by pulling one of the 28/50 Both filters offer a 'Butterworth' roll-off response Figure 19) ...
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... For the programming of the soft-mute, see the programming chapter. 5.4 Spectrum analyzer A fully integrated seven-band spectrum analyzer is present in the TDA7415CB The spectrum analyzer consists of seven band pass filters followed by rectifiers with sample capacitors that store the maximum peak signal level for each band since the last read cycle. ...
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... Once a reset was triggered, a new read-out cycle should not be initiated before the time t Figure 22 illustrates the read cycle timing of the spectrum analyzer. Figure 22. Read cycle timing diagram 30/50 has passed. This allows sufficient settling of the filters. repeat Doc ID 14100 Rev 3 TDA7415CB . A SAdel Figure 22, for . intres ...
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... The output of the zero- window-comparator of the power amplifier must be connected with the WinIn-input of the TDA7415CB. The WinIn-input has an internal pull-up resistor connected to 5,5Volts recommended to drive this pin with open-collector outputs only. ...
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... Digital interface 6 Digital interface The TDA7415CB digital interface supports two different protocols: SPI and C-mode the SEL-pin has to be tied to the system supply by means of a 68k -resistor. If the voltage at the SEL-pin falls below 5.5V, the interface switches to SPI-mode. Consequently, the interface is able to work with a microprocessor either supplied power supply ...
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... ACK = Acknowledge Auto increment If bit I in the subaddress byte is set to "1", the auto increment of the subaddress is enabled which is also true for the SPI mode. Chip-address For the TDA7415CB the chip address is $8C (10001100). Parameter Doc ID 14100 Rev 3 Digital interface Min Typ ...
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... Reset condition A power-on reset (POR) is generated whenever the supply voltage falls below 4.5V. After that, the following data is written automatically into all sub-address registers: MSB 1 1 The programming after POR is marked bold face / underlined in the programming tables. 34/ Doc ID 14100 Rev 3 TDA7415CB LSB ...
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... TDA7415CB 7 Programming Table 13. Subaddress allocation (receive mode) MSB … … LSB Unassigned Test Mode - - - off on Auto Increment Mode - - - off on Main signal path input gain adjust Main signal path Bass-filter settings Main signal path Bass-filter settings Main signal path Mid-filter settings Main signal path Treble-filter settings ...
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... LSB Level 0dB 1dB : : : : : 14dB 15dB Boost / Cut - - - - Boost Cut Soft-step - - - - On Off Quality factor 1. 1.25 1.50 2.00 Doc ID 14100 Rev 3 TDA7415CB Function Input gain adjust level –15dB –14dB … –1dB –0dB +0dB +1dB … +14dB +15dB Unused, do not alter Function ...
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... TDA7415CB Table 16. Main signal path, bass-filter (addr. 02) MSB Table 17. Main signal path, mid-filter (addr. 03) MSB LSB Unused, do not alter Center frequency 150Hz 120Hz 100Hz - - - - 80Hz 70Hz 60Hz 50Hz 40Hz DC-mode - - - - Off On LSB Level 15dB 14dB : : : : : 1dB 0dB Boost / Cut - - - - Cut Boost ...
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... Unused, do not alter LSB Unused, do not alter Attenuation level 0 0 9dB 0 1 7dB 1 0 5.5dB 4dB 0 0 3dB 0 1 2dB 1 0 1dB 1 1 0dB Center frequency 240Hz - - - - 220Hz 200Hz 180Hz Quality factor - - - 1.0 2.0 Doc ID 14100 Rev 3 TDA7415CB Function Function ...
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... TDA7415CB Table 20. Input section, signal paths A-C (addr. 06-08) MSB Table 21. Input section; other settings (addr. 09) MSB LSB Input gain adjust level –15dB –14dB : : : : … –1dB –0dB +0dB +1dB : : : : … +14dB +15dB Input select Tuner Phone - - - - CD-Changer (quasi-differential) AUX./Navigation (quasi-differential) ...
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... Main signal path Output select - - - - AC2in AC3in Main signal path PRE-Tone select Interrupts select, right channel signal path Interrupt enable Interrupt bypass, normal operation Interrupts select, left channel signal path Interrupt enable Interrupt bypass, normal operation Doc ID 14100 Rev 3 TDA7415CB Function Function ...
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... TDA7415CB Table 24. Output section, high-pass filters (addr. 12) MSB LSB Corner frequency, High-pass signal path 100 120 150 180 220 Hz Bypass, High-pass signal path Filter bypass 1 Filter insert Corner frequency, High-pass signal path 100 Hz 120 Hz 150 Hz 180 Hz 220 Hz Bypass, High-pass signal path 1 ...
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... Volume level Not allowed + + … + + + + … – – … – – – – … – – – – … – – – – … – – – – … – – Mute Soft-step - - - - On Off Doc ID 14100 Rev 3 TDA7415CB Function ...
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... TDA7415CB Table 26. Output section, subwoofer low-pass filter (addr. 17) MSB Table 27. Output section, bus-mutes (addr. 20) MSB LSB Unused, do not alter Monitor select 0 0 Signal path 0 (before Soft-mute Signal path 1 (before Soft-mute Low-pass filter (Subwoofer enable Mono-sum bypass 1 1 Stereo bypass (direct through) ...
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... PAout1 (rear) mute - mute 1 Mute DCError output behavior Forced high level by mute; 1 Normal operation, see description Zero-comparator Window size ± 100mV - - - - ± 75mV ± 50mV ± 25mV Spike rejection time constant 11µ 22µs 33µs 44µs Doc ID 14100 Rev 3 TDA7415CB Function (1) Chapter 5.5. ...
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... TDA7415CB Table 29. Soft-mute and soft-step fader time (addr. 22) MSB Table 30. Spectrum analyzer settings (addr. 23) MSB LSB Unused, do not alter Input selection prcedure 0 Soft-mute completion time programmed according bits D6 and D7 Soft-mute completion time fixed to 0.5ms 1 Soft-step completion time 0.32ms - - - - 0.64ms 1.28ms 2.56ms Soft-mute completion time 0 ...
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... Spec.Anal. 1kHz-bandpass Spec.Anal. 2,5kHz-bandpass Spec.Anal. 6,3kHz-bandpass Spec.Anal. 16kHz-bandpass Test mode - - - Enabled * Disabled Doc ID 14100 Rev 3 TDA7415CB Function TUNER R out: DCDet., upper TC-Vth 5,5V CMOS-supply DCDet., time constant 200kHz reference clock actual Soft-Mute clock actual Soft-Step clock SC-reference, left chan. DC-Offset monitor point ...
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... TDA7415CB 8 Application information Figure 27. Typical application connections diagram Figure 27 shows a proposal for a typical application. - However, the figure only represents one possible interconnection scheme with other devices (The shaded blocks could represent a complex digital sound reproducing/processing system). For simplicity, this proposal assumes the system designer not to take advantage from the direct muting feature and therefore let the corresponding Mute-pins floating ...
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... Doc ID 14100 Rev 3 TDA7415CB OUTLINE AND MECHANICAL DATA LQFP64 ( 1.4mm 0.08mm ccc Seating Plane C K 0051434 F ® ...
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... TDA7415CB 10 Revision history Table 32. Document revision history Date 26-Oct-2007 24-Nov-2008 24-Jun-2009 Revision 1 Initial release. 2 Updated the Table 8: Output section on page Updated Figure 28: LQFP64 mechanical data and package 3 dimensions on page Doc ID 14100 Rev 3 Revision history Changes 15. 48. 49/50 ...
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... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 50/50 Please Read Carefully: © 2009 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 14100 Rev 3 TDA7415CB ...