NJW1138
DESCRIPTION
The NJW1138 is an audio processor. It includes all of functions processing audio signal for TV, such as tone control, balance, volume, mute, NJRC original surround, and AGC functions. The NJRC original surround system reproduces natural surround sound and clear vocal orientation. 2 All of internal status and variables are controlled by I C BUS interface. s PACKAGE OUTLINE
NJW1138L
NJW1138M s FEATURES q Operating Voltage 8 to 13V 2 q I C BUS Interface q AGC Circuit (It reduces volume difference among input sources.) q eala(NJRC Original Surround) q Simulated Surround q Bi-CMOS Technology q Package Outline SDIP30, SDMP30 s BLOCK DIAGRAM
VOL1
TONE
VOL2
AGC eala & Sim ulated Surround
I2C Bus Interface
VOL1
TONE
VOL2 Bias
- 1
- F
NJW1138 s PIN FUNCTION
..
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
INa NC NC OUT1a IN2a TONE-Ha TONE-La OUT2a AGC SS-FIL CVB CVA SDA SCL GND
INb NC NC OUT1b IN2b TONE-Hb TONE-Lb OUT2b SR-FIL VREF CTH CTL AUX0 AUX1 Vcc
30 29 28 27 26 25 24...
