NJW1143A

NJW1143A AUDIO PROCESSOR Q GENERAL DESCRIPTION The NJW1143A is an audio processor which includes volume, balance, tone control, surround, simulated stereo and AGC function. Also the NJW1143A features high precision characteristics about channel balance, it is less than ±1.0dB at –70dB attenuation. All of internal status and variables are controlled by I2C BUS. Selectable 4-slave address is applicable to multi-speaker system. It is suitable for any TV set. Q PACKAGE OUTLINE NJW1143AV Q FEATURES O Operating Voltage O I2C BUS Interface 8 to 13V (Fast mode applicable, Selectable 4-Slave address, 3V I/F applicable) O Low Output Noise O AGC Circuit (Selectable 4-stage compression level via I2C BUS) O "eala" (NJRC Surround) O Simulated Surround O Bi-CMOS Technology O Package Outline SSOP32 Q BLOCK DIAGRAM AGC SRFIL TONE TONE -Ha -La OUTa INa VOL1 TONE VOL2 AGC e ala & Sim ulate Stere o INb VOL1 TONE VOL2 I2C Bus Interface Bias CVO CBA CTH CTL CSR AUX0 AUX1 ADR...