TDA7462D STMicroelectronics, TDA7462D Datasheet
TDA7462D
Specifications of TDA7462D
Available stocks
Related parts for TDA7462D
TDA7462D Summary of contents
Page 1
... S November 2001 AND SUBWOOFER OUTPUT 2 C BUS IN- ORDERING NUMBER: TDA7462D optimize audio response of CD sources an addi- tional output channel for subwoofer and a sepa- rate source selector for rear channel. The use of a dedicated BICMOS process makes signal proc- essing very linear thus achieving low distortion and low noise figures ...
Page 2
TDA7462 ABSOLUTE MAXIMUM RATINGS Symbol V Operating Supply Voltage S T Operating Ambient Temperature Range amb T Operating Storage Temperature Range stg SUPPLY Symbol Parameter V Supply Voltage S I Supply Current S SVRR Ripple Rejection @ 1KHz ESD All ...
Page 3
PIN DESCRIPTION N. Name 1 SE1L Single Ended Input 1 Left Channel 2 SE1R Single Ended Input 1 Right Channel 3 MD+ Mono Differenzial Input + 4 MD- Mono Differenzial Input - 5 CDL+ CD Input Left Channel + 6 ...
Page 4
TDA7462 ELECTRICAL CHARACTERISTICS (V unless otherwise specified). Symbol Parameter INPUT SELECTOR R Input Resistance in V Clipping Level CL S Input Separation IN G Min. Input Gain IN MIN G Max. Input Gain IN MAX G Step Resolution STEP V ...
Page 5
ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter SOFT MUTE A Mute Attenuation MUTE T Delay Time D V Low Threshold for SM Pin THlow V High Threshold for SM Pin THhigh R Internal Pull-up Resistor PD SOFT STEP T Switch Time SW ...
Page 6
TDA7462 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter FADER OUTPUTS V Clipping Level CLIP R Output Load Resistance L C Output Load Capacitance L R Output Impedance OUT V DC Voltage Level DC PAUSE DETECTOR V Zero Crossing Threshold TH I Pull-Up ...
Page 7
ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter GENERAL e Output Noise NO S/N Signal to Noise Ratio d Distortion S Channel separation Left/Right C E Total Tracking Error T MAIN FEATURES SUMMARY Input Multiplexer One fully differential CD stereo input with switchable ...
Page 8
TDA7462 Mute Functions Direct mute Digitally controlled softmute with 4 program- mable mute times Pause Detector Programmable threshold Delay time defined by external capacitor Figure 1. Input Stage CD+ 1 100K CD- 1 100K PD+ 1 100K PDGND MDGND MD+ ...
Page 9
CD players. AutoZero Stage In order to reduce the number of pins there coupling between the In-Gain and the follow- ing stage, so that any offset generated by or ...
Page 10
TDA7462 Figure 3. Loudness Attenuation @ fc = 400Hz (second order) 0.0 -5.0 -10.0 -15.0 -20.0 10.0 100.0 Figure 4. Loudness Center frequency @ Attn. = 15dB (second order) 0.0 -5.0 -10.0 -15.0 -20.0 10.0 100.0 Figure 5. Loudness @ ...
Page 11
FILTER CHARACTERISTICS (BASS, TREBLE, VOICE-BAND) Figure 8. Bass Control @ fc = 80Hz 15.0 10.0 5.0 0.0 -5.0 -10.0 -15.0 10.0 100.0 Figure 10. Bass Quality factors @ Gain = 14dB 80Hz 15.0 12.5 10.0 ...
Page 12
TDA7462 Subwoofer Application Figure 14. Subwoofer Application with LPF 80/115Hz and HPF 90/130Hz dB 0.0 -10.0 -20.0 -30.0 -40.0 -50.0 10.0 100.0 1.0K Figure 16. Switchable configuration for Front/Rear processing Speaker Attenuator Due to practical aspects the steps in the ...
Page 13
Compander Stage To achieve the desired compression charac- teristic like shown below the volume has to be decreased by 4dB. Figure 17. Compander Characteristics dB 0 -8dB -10 2:1 -20 -30 -40 -50 -60 0 -10 -20 -30 Input Level ...
Page 14
TDA7462 BUS INTERFACE DESCRIPTION Interface Protocol The interface protocol comprises start condition ( chip address byte (the LSB bit determines CHIP ADDRESS 8 Bit MSB LSB ...
Page 15
SUBADDRESS (receive mode) MSB For more information see Compander section 2 For more information see AutoZero section 3 For more information see Test Programming block 4 If ...
Page 16
TDA7462 DATA BYTE SPECIFICATION Main Selector MSB Main Loudness MSB ...
Page 17
Volume MSB ...
Page 18
TDA7462 Bass Programming MSB Note: For more information please refer to section Bass description Speaker Attenuation ...
Page 19
Rear Selector MSB Rear Loudness MSB Note: The ...
Page 20
TDA7462 Speaker Attenuation Rear (left & right channel) MSB ...
Page 21
Subwoofer MSB SoftMute and Mixing MSB D7 ...
Page 22
TDA7462 Compander MSB Only possible if the Compander is off (Bit D0 set to 0) ...
Page 23
Testing MSB avoid inadvertently programming of the Main-Testmode as well the Compander testmode it is mandatory to set the Bit 5 in the subaddress-byte to high at the ...
Page 24
TDA7462 mm DIM. MIN. TYP. MAX. A 2.65 a1 0.1 0.3 0.004 b 0.35 0.49 0.014 b1 0.23 0.32 0.009 C 0 (typ.) D 17.7 18.1 0.697 E 10 10.65 0.394 e 1.27 e3 16.51 F 7.4 7.6 ...
Page 25
... STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © ...