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TDA7463A Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA7463A Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 12 page  1/12 TDA7463A June 2004 1FEATURES ■ 2 STEREO INPUT ■ 1 STEREO OUTPUT ■ TREBLE BOOST ■ BASS CONTROL ■ BASS AUTOMATIC LEVEL CONTROL ■ VOLUME CONTROL IN 1dB STEPS ■ MUTE ■ STAND-BY FUNCTION SOFTWARE CONTROLLED ■ ALL FUNCTION ARE PROGRAMMABLE VIA SERIAL BUS 2DESCRIPTION The TDA7463A is a volume tone (bass and treble) processor for quality audio applications in Low voltage supply portable systems. Bass ALC (Automatic Level Control) function can be adjusted by a dedicated pin. The control of all the functions is accomplished by serial bus. The AC signal setting is obtained by resistor net- works and switches combined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR Figure 2. Application & Test Circuit IN1-R ALC IN1-L C2 0.47 µF C3 0.47 µF C6 3.3nF C7 100nF C8 100nF R2 5.6K SUPPLY VS GND CREF TREBLE-L D99AU1049 I2C BUS DECODER + LATCHES SCL SDA OUT-L OUT-R C9 22 µF + TREBLE-R RB RB BASSI-R BASSO-R x1 x5 x1 x5 C4 0.47 µF C5 0.47 µF 50K R1 1M TREBLE -63dB CONTROL -63dB CONTROL INPUT SELECT TREBLE BASS BASS BASS_ALC CONTROL HALF_WAVE RECTIFIER 50K 50K IN2-R 18 17 15 16 19 20 2 3 4 5 6 11 12 1 7 9 10 14 C1 0.47 µF IN2-L 50K VREF 0/-10dB 0/-10dB BASSO-L BASSI-L C10 100nF C11 100 µF R3 1K Ω R4 1K Ω VS DGND C14 3.3nF R5 5.6K 100nF 100nF C13 C12 1 2 3 4 VS VS VS I2C SCL SDA REV. 4 Figure 1. Package Table 1. Order Codes Part Number Package TDA7463A SO20 SO20 |
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