NJW1133A
PRELIMINARY
AUDIO PROCESSOR
sGENERAL
DESCRIPTION
The
NJW1133A
is an audio processor. It includes all of
functions processing audio signal for TV, such as tone
control, balance, volume, mute, and AGC(Auto Gain Control)
functions.
2
All of internal status and variables are controlled by I C
BUS interface.
sPACKAGE
OUTLINE
sFEATURES
8 to 13V
q
Operating Voltage
2
q
I C BUS Interface
q
AGC Circuit (It reduces volume difference among input sources.)
q
Matrix Surround
q
Bi-CMOS Technology
SDMP30
q
Package Outline
sBLOCK
DIAGRAM
NJW1133AM
AGC1
OUT1a IN2a
TONE TONE
鈥揌a 鈥揕a
PS
OUT2a
CTH
CTL
IN1a
Volume
1
Tone
(Bass/Treble)
Volume
2
CVA
Control
Logic
AGC
Matrix
Surround
CVB
AUX0
AUX1
SDA
IN1b
Volume
1
Tone
(Bass/Treble)
SCL
Volume
2
Bias
GND
Vcc
AGC2
OUT1b IN2b TONE TONE
鈥揌b 鈥揕b
OUT2b
VREF
-1-