TDA7463AD

TDA7463AD LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR 1 ■ ■ ■ ■ ■ ■ ■ ■ ■ FEATURES 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 Figure 1. Package SSO20P Table 1. Order Codes Part Number TDA7463AD Package SSO20P The control of all the functions is accomplished by serial bus. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. 2 DESCRIPTION The TDA7463AD 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. Figure 2. Block Diagram R5 5.6K C14 3.3nF 100nF C13 100nF C12 TREBLE-R 17 C1 0.47µF IN2-R 18 INPUT SELECT -63dB CONTROL TREBLE BASSI-R 16 BASSO-R 15 RB 50K C2 0.47µF IN1-R 19 0/-10dB x1 BASS x5 14 OUT-R 50K I2C 1 10 HALF_WAVE RECTIFIER + I2C BUS DECODER + LATCHES 9 SDA SCL R3 1KΩ R4 1KΩ 2 3 4 VS DGND SCL SDA VS BASS_ALC CONTROL C3 0.47µF ALC R1 1M 20 VS C4 0.47µF IN1-L 2 TREBLE 50K BASS 0/-10dB x5 x1 7 OUT-L C5 0.47µF IN2-L 3 -63dB CONTROL 50K 4 D99AU1049 C6 3.3nF 5 TREBLE-L RB 6 BASSI-L C7 100nF VREF 11 BASSO-L SUPPLY 12 GND CREF C9 22µF VS 1 C10 100nF VS C11 100µF C8 100nF R2 5.6...