NJW1112
8-IN 4-OUT STEREO AUDIO SELECTOR
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJW1112 is an 8-input 4-output stereo audio selector.
It includes four independent 8-input-1output stereo audio selectors
and 0dB fixed gain buffers.
The NJW1112 performs superior audio characteristics such as low
distortion, low output noise and low crosstalk.
In addition, the NJW1112 is available to expand to 16-input
4-output stereo audio selector without sound quality deterioration,
because it is able to connect in parallel by Output switch function.
All of internal status and variables are controlled by three-wired
serial bus. Selectable two Chip address is available for using two
chips on same serial bus line. It is suitable for AV amplifiers, AV
receivers, Analog audio switchers, Video conferencing, Security
systems and others.
NJW1112V
FEATURES
• Operating Voltage
±4.5 to ±7.5V
• 8-Input, 4-Output Stereo Audio Selector
• Operating Current
14mA typ.
• Low On Resistance Output Switch
• Low Distortion
• Low Output Noise
On Resistance :15Ω typ.
0.0007% typ.
-119dBV typ.
120dB typ.
• Low Crosstalk
• Channel Separation
• 3-Wired Serial Control
• Bi-CMOS Technology
• Package Outline
116dB typ.
SSOP32
BLOCK DIAGRAM
V-
ADR
V+
V-
OutA1
OutB1
OutA2
OutB2
OutA3
OutB3
OutA4
OutB4
DATA
LATCH
CLOCK
+
+
10
F
10
F
10
F
10
F
10
F
10
F
10
F
10 F
µ
+
µ
µ
µ
µ
µ
µ
µ
10
F
+
µ
+
+
+
+
+
+
+
100 F
µ
100
F
µ
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VDDOUT
GND
Control Logic
1
2
3
4
5
6
8
9
10
11
12
13
14
15
16
7
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
Rin
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
InA1
InB1
InA2
InB2
InB3
InA4
InB4
InA5
InB5
InA6
InB6
InB7
InA8
InB8
InA3
InA7
Ver.0.2
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