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PDF NJW1156A Data sheet ( Hoja de datos )
| Número de pieza | NJW1156A | |
| Descripción | Electronic Volume | |
| Fabricantes | JRC | |
| Logotipo |  |
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NJW1156A
2-CHANNEL ELECTRONIC VOLUME WITH INPUT SELECTOR
s GENERAL DESCRIPTION
NJW1156A is a two channel electronic volume with 5
input selector. It’s suitable for Input signal trimmer of
audio equipments such as DVD / HDD recorder and
VCR. These functions are controlled by I2C Bus.
NJW1156A changes high input impedance (38.5kΩ)
compared with NJW1156.
s PACKAGE OUTLINE
NJW1156AV
s FEATURES
q Operating Voltage
q I2C Bus control
q 5 Input Selector
q Volume
q Bi-CMOS Technology
q Package Outline
s BLOCK DIAGRAM
8 to 13V
0 to –39.5dB/0.5dBstep, MUTE
SSOP20
A/D
INPUTS
INPUTS
I2C Control
V+
GND
V+
GND
A/D
–1–
1 page  
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TERMINAL DESCRIPTION
PIN SYMBOL
NO.
FUNCTION
10 SDA
I2C Data Input
12 VREFOUT Reference Voltage Output
NJW1156A
EQUIVALENT CIRCUIT
TERMINAL
DC
VOLTAGE
4K
8K
GND
-
V+
400
V+/2
GND
13 V+ Power Supply
GND
V+
14 VREFIN Reference Voltage Noise Rejection Capacitor
Terminal
V+
GND
50K
50K
V+/2
–5–
5 Page 
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TYPICAL CHARACTERISTICS
Voltage Gain vs. Ambient Temperature
V +=12V ,V i n=1V ,f =1kHz,V ol=0dB
1.0
0.5
0.0
-0.5 L1,R1IN
-1.0
-50
0 50 100
Ambient Temperature [oC]
150
Attenuation Level vs. Ambient Temperature
V +=12V ,V in=1V ,f =1kHz,V ol=-39.5dB
-30
-35
-40
L1,R1IN
-45
-50
-50
0 50 100
Ambient Temperature [oC]
150
Maximam Output Voltage vs. Ambient Temperature
V +=12V ,f =1kHz,THD+N=1%,V ol=0dB
13.0
12.5
12.0
11.5
11.0
L1,R1IN
10.5
10.0
9.5
9.0
-50
0 50 100
Ambient Temperature [oC]
150
NJW1156A
Attenuation Level vs. Ambient Temperature
V +=12V ,V in=1V ,f =1kHz ,V ol=-20dB
-10
-15
-20
-25 L1,R1IN
-30
-50
0 50 100
Ambient Temperature [oC]
150
Attenuation Level vs. Ambient Temperature
V +=12V ,V in=1V ,f =1kHz ,V ol=Mute
-80
-85
-90
R1IN
-95
-100
-105
-110
-115
L1IN
-120
-125
-130
-50
0 50 100
Ambient Temperature [oC]
150
Output Noise Level vs. Ambient Temperature
V+=12V,Rg=0Ω,Vol=0dB,A-w eight
-60
-70
-80
-90
-100
R1IN
-110
-120
-130
-50
L1IN
0 50 100
Ambient Temperature [oC]
150
– 11 –
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NJW1156A.PDF ] | |
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