NJW1194
DESCRIPTION
The NJW1194 is a 2-channel electronic volume with4-in 1-out stereo audio selector and Tone Control. The NJW1194 performs low noise and low distortion characteristics with resistance ladder circuit. All of functions are controlled via three-wired serial bus. Selectable 4-Chip address is available for using four chips on same serial bus line. It’s suitable for two-channel stereo system and or multi-channel audio system. s PACKAGE OUTLINE
NJW1194V s FEATURES q Operating Voltage q 3-Wired Serial Control q Low output noise q Low THD q Input Selector(X4) q Volume q Tone Control q Channel Separation q Zero Cross Detection q Bi-CMOS Technology q Package Outline
±4.5 to ±7.5V Chip Address Select Function
-117d BVtyp. 0.0015%typ. (Vin=2Vrms, VOL=0d B) +31.5 to
- 95.0d B / 0.5d Bstep, MUTE 0to ±10d B/1d Bstep -120d Btyp.
SSOP32 s BLOCK DIAGRAM
CLOCK
LATCH
Ach Tone Filter V+ GND VV-
ADR1
ADR0
DATA
In A1 In A2 In A3 In A4 In B1 In B2 In B3 In B4
Bias
Control Logic Zero Cross...
