DESCRIPTION
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 BIPOLAR/CMOS Technology used, Low Distortion, Low Noise and DC stepping are obtained. R-IN2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D01AU1247 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 R-IN3 R-IN4 L-OUT R-OUT AGND VS CREF SDA SCL DIGGND TREBLE-R N.C. TREBLE-L PS1 LP BOUT(L) R_IN3 R_IN2 R_IN1 L_IN1 L_IN2 L_IN3 L_IN4 MUXOUTL IN(L) MUXOUT(R) IN(R) BIN(R) BOUT(R) BIN(L) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 D98AU948 28 27 26 25 24 23 22 21 20 19 18 17 16 15 R_IN4 LOUT ROUT AGND VS CREF SDA SCL DIG-GND TREBLE(R) TREBLE(L) PS1 LP BOUT(L) R-IN1 MONITOR(L) MONITOR(R) L-IN1 L-IN2 L-IN3 L-IN4 MUXOUT(L) IN(L) MUXOUT(R) N.C. IN(R) BIN(R) BOUT(R) BIN(L) SO28 SDIP32 1/16 January 2001 TDA7442 - TDA7442D BLOCK DIAGRAM (TDA7442) 100nF 2.2µF 5.6nF 5.6K 100nF 100nF IN(L) MONITOR(L) 0.47µF L-IN1 50K 0.47µF L-IN2 50K 0...
STMicroelectronics
