NJW1173

NJW1173 AUDIO PROCESSOR www.datasheet4u.com s GENERAL DESCRIPTION The NJW1173 is an audio processor which includes volume, balance, tone control, surround, simulated stereo and AGC function. Also the NJW1173 features high precision characteristics about channel balance, it is less than ±1.0dB at –70dB attenuation. 2 All of internal status and variables are controlled by I C BUS. It is suitable for any TV set. s PACKAGE OUTLINE NJW1173V s FEATURES q Operating Voltage 8 to 13V 2 q I C BUS Interface (Fast mode applicable, 3V I/F applicable) q Low Output Noise 2 q AGC Circuit (Selectable 4-stage compression level via I C BUS) q "eala" (NJRC Surround) q Simulated Surround q Bi-CMOS Technology q Package Outline SSOP20 s BLOCK DIAGRAM AGC SRFIL TONE TONE -Ha -La OUTa CVO CBA CTH CTL I2C Bus Interface INa VOL1 TONE VOL2 CSR AGC eala & Sim ulate Stereo SCL INb VOL1 TONE VOL2 Bias SDA V+ GND TONE TONE -Hb -Lb OUTb Vref -1- NJW1173 s PIN CONFIGURATION www.datasheet4u.com Ach Input Ach Output Ach Treble Filter Ach Bass Filter AGC Filter Pop Noise Reduction for Surround ON/OFF Control Pop Noise Reduction for Volume Control SDA Serial Data Input (I C BUS) SCL Serial Clock Input (I C BUS) Ground 2 2 1 2 3 4 5 6 7 8 9 10 IN1a OUTa TONE-Ha TONE-La AGC CSR CVO SDA SCL GND IN1b 20 OUTb 19 TONE-Hb 18 TONE-Lb 17 SR FIL 16 CBA 15 CTL 14 CTH 13 Vref 12 V+ 11 Bch Input Bch Output Bch Treble Filter Bch Bass Filter Surround Filter Pop Noise Reduction for Balance Control Po...