NJW1195A Datasheet, PDF (1/3 Pages) New Japan Radio – 4-Channel Electronic Volume with Input Selector

NJW1195A
4-Channel Electronic Volume with Input Selector
s GENERAL DESCRIPTION
The NJW1195A is a 4-channel electronic volume with
4-in 2-out stereo audio selector. It performs low noise and
low distortion characteristics with resistance ladder circuit.
The NJW1195A is also available for 2-channel differential
transmission electronic volume with 2-in 1-out stereo audio
selector by a differential transmission select function.
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.
At the volume attenuated, the NJW1195A improves low
distortion compared with NJW1195. Furthermore, the
NJW1195A supports both single power supply operation
and dual power supply operation.
s PACKAGE OUTLINE
NJW1195AV
s FEATURES
q Operating Voltage
q 3-Wired Serial Control
q Selectable 4-Chip Address
q Low Output Noise
q Low Distortion
q 4in 2out Stereo Signal Selector
q Volume
q Differential transmission select function
q Channel Separation
q Zero Cross Detection
q Bi-CMOS Technology
q Package Outline
Dual power supply : ±3.5 to ±7.5V
Single power supply : +7.0 to +15V
Chip Address Select Function
Available for using four chips on same serial bus line
-118dBV typ. (1.26µVrms typ.)
0.0003% typ. at Vin=1Vrms (Differential transmission)
+31.5 to –95dB / 0.5dB step, Mute
-120dB typ.
SSOP32
s BLOCK DIAGRAM
In B1
In B2
In B3
In B4
10µF
+
10µF
+
10µF
+
10µF
+
32
31
30
29
Out1 B
100µF
+
28
27
10µF
+
26
25
+31.5dB to -95dB
/ 0.5dBs tep, Mute
VOL1B
100µF
+
24
23
DIFF
Out2 B _ADR1
10µF
+
22
21
20
ADR0
19
V+
V-
+
+
100µF 100µF
18
17
Ref 5V
VDD
+31.5dB to -95dB
/ 0.5dBstep, Mute
VOL2B
SEL1B SEL2B
SEL1A SEL2A
VOL2A
+31.5dB to -95dB
/ 0.5dBstep, Mute
Zero Cross
Detection
1
2
3
4
10µF ⁺ 10µF ⁺ 10µF ⁺ 10µF ⁺
VOL1A
+31.5dB to -95dB
/ 0.5dBstep, Mute
5
6
7
100µF ⁺
8
10µF ⁺
Control Logic
9
1100
1111
1122
1133
14
15
16
100µF ⁺
10µF ⁺
+
In A1
In A2
In A3
In A4
Out1 A
D_REF _{Out2 A}
V-
DATA CLOCK LATCH
Ver. 0.1E for Web
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