Harman Kardon HK 980/230, Service Manual

Page: 12 / 50

NJW1119A
Ver 0.0
3-Band Tone Control IC
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GENERAL DESCRIPTION
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PACKAGE OUTLINE
The NJW1119A is a Tone Control IC including 3-Band
stereo EQ circuit.
It performs superior audio characteristics such as low
distortion and low output noise. All of internal status are
controlled by three-wired serial bus. Selectable 4-Chip
address is available for using four chips on same serial bus
line.
It is suitable for any audio applications.
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APPLICATIONS
ïAV amplifier/receiver
ïCar Audio
ïMini/Micro components
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FEATURES
ï Operating Voltage
±
4.5 to
±
7.5V
ï 3-Wired Serial Control Chip Address Select Function
ï Low Total Harmonic Distortion 0.0002% typ. @Tone=OFF
ï Low Output Noise
-120dB typ. @Tone=OFF
ï Tone Control 0 to ±12dB/1dB Step (100Hz/1kHz/10kHz)
ï
Bi-CMOS Technology
ï
Package Outline
SSOP32
ï Mute Function
■ ■ ■ ■
BLOCK DIAGRAM
26 25 24 32 31 30 29 28 27 19 18 17 23 22 21 20
7 8 9 1 2 3 4 5 6 14 15 16 10 11 12 13
VDD
Control Logic
GND
GND
GND
3Band TONE
ADR1 ADR0 GND
3Band TONE
GND
Ref 5V
NJW1119AV
harman/kardon HK 980/230 Service Manual
Page 12 of 50