NJW1142

www.DataSheet4U.com NJW1142 PRELIMINARY AUDIO PROCESSOR s GENERAL DESCRIPTION s PACKAGE OUTLINE The NJW1142 is a sound processor includes all of the functions required to process the audio signal for TV, such as tone control, balance, volume, mute, and AGC functions. Also the NJW1142 performs eala (NJRC Original Surround) which is regenerated 3D surround sound with only two speakers. 2 All of the internal status and variables are controlled by I C BUS interface. NJW1142M s FEATURES q Operating Voltage 8 to 10V q Internal 4 Input Audio Selectors and Monitor Output q Low Noise VCA q eala (NJRC Original Surround System) q Simulated Stereo 2 q Variable AGC Compression Level via I C (4-levels) q Bi-CMOS Technology q Package Outline SDMP30 DataSheet4U.com sBLOCK DIAGRAM DataShee MONa AGC TONE TONE -La -Ha OUTa -2dB +4.5dB SDA SCL CVA CVB I2C BUS Interface IN1a IN2a IN3a IN4a SEL VOL1 TONE VOL2 AGC eala & Sim ulated Stereo CTH CTL IN1b IN2b IN3b IN4b SEL -2dB VOL1 TONE VOL2 Bias GND Vcc +4.5dB MONb TONETONE -Hb -Lb OUTb Vref DataSheet4U.com -1– www.DataSheet4U.com NJW1142 s PIN CONFIGURATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 IN1a IN2a IN3a IN4a MONa SS FIL TONE -Ha TONE -La LINEa OUTa CVa CVb IN1b 30 IN2b 29 IN3b 28 IN4b 27 MONb 26 SR FIL 25 TONE -Hb 24 TONE -Lb 23 LINEb 22 OUTb 21 AGC 20 CTH 19 et4U.com SDA CTL 18 DataSheet4U.com SCL Vref 17 GND V+ 16 DataShee No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Symbol IN1a IN2a IN3a IN4a MONa SS FIL T...