TDA7440D Datasheet | STMicroelectronics

DESCRIPTION The TDA7440D is a volume tone (bass and treble) balance (Left/Right) processor for quality audio applications in Hi-Fi systems. BLOCK DIAGRAM MUXOUTL L-IN1 4 100K 5 L-IN2 100K 6 100K 7 100K 0/30d B 2d B STEP 100K 2 100K 1 G VOLUME 8 INL 9 SO28 ORDERING NUMBER: TDA7440D Selectable input gain is provided. Control of all the functions is acplished by serial bus. The AC signal setting is obtained by resistor networks and switches bined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained TREBLE(L) 18 BIN(L) 14 RB BOUT(L) 15 L-IN3 TREBLE BASS SPKR ATT LEFT LOUT L-IN4 21 I CBUS DECODER + LATCHES SCL SDA DIG_GND R-IN1 22 20 R-IN2 VOLUME TREBLE BASS SPKR ATT RIGHT VREF ROUT R-IN3 100K 28 R-IN4 100K INPUT MULTIPLEXER + GAIN 10 MUXOUTR INR 11 19 TREBLE(R) 12 BIN(R) SUPPLY RB 13 BOUT(R) 23 CREF D98AU883 24 25 VS AGND April 1999 1/16 PIN CONNECTION (Top view) 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...