TDA7303 STMicroelectronics, TDA7303 Datasheet
TDA7303
Specifications of TDA7303
Available stocks
Related parts for TDA7303
TDA7303 Summary of contents
Page 1
... Independent mute function ■ All functions programmable via serial I Description The TDA7303 is a volume, tone (bass and treble) balance (left/right) and fader (front/rear) processor for quality audio applications in car radio, Hi-Fi and portable systems. Table 1. ...
Page 2
... C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.1 Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.2 Start and stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.3 Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.4 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.5 Transmission without acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4 Software specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.1 Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.2 Subaddress (receive mode 4.3 Data bytes (detailed description Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 TDA7303 ...
Page 3
... TDA7303 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 3. Quick reference data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4. Thermal data Table 5. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 6. Chip address Table 7. Data bytes Table 8. Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Table 9. Speaker attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Table 10. Audio switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 11. Bass and treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 12. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 ...
Page 4
... Bass resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 19. Typical tone response (with the external components indicated in the test circuit Figure 20. Data validity on the I Figure 21. Timing diagram of S-bus and I Figure 22. Acknowledge on the I Figure 23. Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 24. SO-28 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4/ 250 mV bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bus bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 TDA7303 ...
Page 5
... TDA7303 1 Block, test and pin diagrams 1.1 Block diagram Figure 1. Block diagram Block, test and pin diagrams 5/20 ...
Page 6
... Block, test and pin diagrams 1.2 Test circuit Figure 2. Test circuit 1.3 Pin connection Figure 3. Pin connection (top view) 6/20 TDA7303 ...
Page 7
... TDA7303 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V Operating supply voltage S T Ambient temperature amb T Storage temperature range stg 2.2 Quick reference data Table 3. Quick reference data Symbol V Supply voltage S V Max. input signal handling CL THD Total harmonic distortion Vrms kHz ...
Page 8
... Attenuation set error A A Output mute attenuation MUTE (1) Bass control Gb Control range B Step resolution STEP 8/20 = 600 Ω, all control flat ( kHz unless = kΩ Test condition Input pin 11. - - Max. Boost/cut TDA7303 Min. Typ. Max. Unit kΩ 2 2.5 Vrms 80 100 dB 2 kΩ ...
Page 9
... TDA7303 Table 5. Electrical characteristics (continued °C, V amb S otherwise specified) Symbol Parameter R Internal feedback resistance B (1) Treble control Gt Control range T Step Resolution STEP Audio outputs V Clipping level OCL R Output load resistance L C Output load capacitance L R Output resistance OUT V DC voltage level ...
Page 10
... Electrical specifications 2.5 Electrical characteristics curves Figure 4. Loudness vs. volume attenuation Figure 6. Loudness vs. external capacitors Figure 8. Signal to noise ratio vs. volume setting 10/20 Figure 5. Loudness vs. frequency (C 100 nF) vs. volume attenuation Figure 7. Noise vs. volume/gain setting Figure 9. Distortion and noise vs. frequency ( TDA7303 = LOUD ...
Page 11
... TDA7303 Figure 10. Distortion and noise vs. frequency (V = 250 mV) IN Figure 12. Channel separation (L → R) vs. frequency Figure 14. Supply voltage rejection vs. frequency Electrical specifications Figure 11. Distortion vs. load resistance Figure 13. Input separation (L1 → L2, L3) vs. frequency Figure 15. Output clipping level vs. supply voltage 11/20 ...
Page 12
... Electrical specifications Figure 16. Quiescent current vs. supply voltage Figure 18. Bass resistance vs. temperature 12/20 Figure 17. Supply current vs. temperature Figure 19. Typical tone response (with the external components indicated in the test circuit) TDA7303 ...
Page 13
... TDA7303 bus interface Data transmission from microprocessor to the TDA7303 and viceversa takes place through 2 the 2 wires I C bus interface, consisting of the two lines SDA and SCL (pull-up resistors to positive supply voltage must be connected). 3.1 Data validity As shown in Figure clock. The high and low state of the data line can only change when the clock signal on the SCL line is lOW ...
Page 14
... C bus D99AU1032 START 2 C bus MSB START D99AU1033 2 Purchase Components of STMicrolectronics, conveys a license under the Philips I use these components system conforms to the I defined by Philips. D99AU1031 2 I CBUS STOP ACKNOWLEDGMENT FROM RECEIVER 2 C Patent Rights system, provided that the C Standard Specifications as TDA7303 ...
Page 15
... Interface protocol The interface protocol comprises: ● A start condition (s) ● A chip address byte, containing the TDA7303 address (the 8th bit of the byte must be 0). The TDA7303 must always acknowledge at the end of each transmitted byte. ● A sequence of data (N-bytes + acknowledge) ● ...
Page 16
... For example a volume of - given by Table 9. Speaker attenuators MSB For example attenuation speaker RF is given by 16/ TDA7303 LSB Function A1 A0 Volume 1.25 dB steps -1. -2 -3. -6. -7 -8.75 Volume 10 dB steps 0 -10 -20 -30 -40 -50 -60 -70 LSB Function A1 A0 Speaker Speaker Speaker Speaker -1. -2 -3. -6. -7 -8.75 0 -10 -20 - Mute ...
Page 17
... TDA7303 Table 10. Audio switch MSB 0 1 For example to select the stereo 2 input with a gain of +7.5dB LOUDNESS ON the 8bit string is Table 11. Bass and treble MSB Sign For example Bass at -10dB is obtained by the following 8 bit string Software specification LSB Function S1 S0 Audio Switch ...
Page 18
... MAX. 2.65 0.104 0.3 0.004 0.012 0.49 0.014 0.019 0.32 0.009 0.013 0.5 0.020 45° (typ.) 18.1 0.697 0.713 10.65 0.394 0.419 1.27 0.050 16.51 0.65 7.6 0.291 0.299 1.27 0.016 0.050 8 ° (max.) TDA7303 OUTLINE AND MECHANICAL DATA SO-28 ® ...
Page 19
... TDA7303 6 Revision history Table 12. Document revision history Date 04-Aug-2006 13-Mar-2009 18-Mar-2009 Revision 1 Initial release. Updated “distortion” parameter in the characteristics on the page 9. 2 Modified the max. clock speed value in protocol on page 15. Updated Section 5: Package information on page Modified the test condition of the parameter “distortion” in the ...
Page 20
... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 20/20 Please Read Carefully: © 2009 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com TDA7303 ...