NJW1145

www.DataSheet4U.com NJW1145 AUDIO PROCESSOR s GENERAL DESCRIPTION s PACKAGE OUTLINE The NJW1145 is a audio processor with sound enhancement (BBE). It includes all of the functions processing audio signal for TV, such as tone control, balance, volume, mute, and AGC functions. Also the NJW1145 performs surround and sound enhancement. The sound enhancement regenerates high definitive and nearly real sound. All of the internal status and variables are controlled by 2 NJW1145GK1 I C BUS interface. s FEATURES q Operating Voltage 8 to 13V 2 q I C BUS Interface q BBE Sound Enhancement (Low Boost and High Boost: 15dB max.) q Internal 6 Input Audio Selectors and Monitor Output q The AGC circuit reduces volume difference among input sources. 2 q Variable AGC Compression Level via I C (4-levels) q NJRC Surround "eala" and Simulated Surround 2 q Variable Surround Effect Level via I C q Low Noise VCA q Bi-CMOS Technology q Package Outline SOP40-K1 DataSheet4U.com s BLOCK DIAGRAM DataShee MONa AGC TONE TONE -Ha -La OUTa -2dB +4.5dB IN1a IN2a IN3a IN4a IN5a IN6a SDA SCL CVA CVB CTH CTL CSR CSB SEL VOL1 NJRC Surrond “eala” & Sim ulated Stereo VOL1 -2dB BBE TONE VOL2 I2C BUS Interface AGC IN1b IN2b IN3b IN4b IN5b IN6b SEL BBE TONE VOL2 Bias GND Vcc +4.5dB MONb TONE TONE -Hb -Lb OUTb Vref DataSheet4U.com -1- www.DataSheet4U.com NJW1145 s PIN CONFIGURATION Ach Input Terminal 1 Ach Input Terminal 2 Ach Input Terminal 3 Ach Input Terminal 4 Ach Input Terminal 5 Ach Inp...