NJU72342 PDF даташит
Спецификация NJU72342 изготовлена «New Japan Radio» и имеет функцию, называемую «4 Channels Electronic Volume». |
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Детали детали
Номер произв | NJU72342 |
Описание | 4 Channels Electronic Volume |
Производители | New Japan Radio |
логотип |
14 Pages
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NJU72342
4 Channels Electronic Volume
GENERAL DESCRIPTION
The NJU72342 is a 4 channels I2C electronic volume IC with
external mute controls.
The NJU72342 has many characteristics that are useful in audio
application, such as low noise, low distortion, and wide operating
voltage range.
All functions are controlled by I2C BUS interface.
PACKAGE OUTLINE
FEATURES
Operating Voltage
Input Gain
Volume
Low Distortion
Low Noise
External Mute
Zero Cross Detection
I2C BUS Control
CMOS Technology
Small Package
BLOCK DIAGRAM
V+=4.5V 14.5V
0dB/+3dB/+6dB/+9dB
0~-95dB/Mute ,1dBstep
0.002% typ.
2.0µVrms typ.
SSOP14
SSOP14
PIN CONFIGURATION
IN1
IN2
IN3
IN4
MUTE
SDA
SCL
I2C
OUT1
OUT2
OUT3
OUT4
V r ef
Zero Cross
Detection
No. Symbol
1 IN1
2 IN2
3 IN3
4 IN4
5 MUTE
6 SDA
7 SCL
8 V+
9 VREF
10 GND
11 OUT4
12 OUT3
13 OUT2
14 OUT1
Function
Input Terminal 1
Input Terminal 2
Input Terminal 3
Input Terminal 4
Mute Terminal
I2C Data Input Terminal
/Acknowledge Output
I2C Clock Terminal
Power Supply Terminal
Reference Voltage
Terminal
Ground Terminal
Output Terminal 4
Output Terminal 3
Output Terminal 2
Output Terminal 1
Ver.0.8E
–1–
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NJU72342
ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER
SYMBOL
RATING
UNIT
Supply Voltage
V+
+15
Power Dissipation
PD
560 (Note1)
Maximum Input Voltage
VIMAX
0 ~ V+ (Note2)
Operating Temperature Range
Topr
-40 ~ +85
Storage Temperature Range
Tstg
-40 ~ +150
(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
(Note2) Don’t put Input Voltage more than Power Supply Voltage.
ELECTRICAL CHARACTERISTICS
(Ta=25C, V+=9V, RL=47k, VIN=1.5Vrms, f=1kHz, all controls flat unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
V
mW
V
C
C
TYP. MAX. UNIT
Operating Voltage
Supply Current
Reference Voltage
Maximum Input Voltage
Maximum Output Voltage
Voltage Gain 1
Voltage Gain 2
Voltage Gain 3
Channel Balance
Total Harmonic Distortion
V+
IDD
VREF
VINS
VOM
GV1
GV2
GV3
GCB
THD
4.5 9 14.5 V
No signal
No signal
- 10 16 mA
4.0 4.5 5.0
V
Main Volume=-6dB,THD=1%
- 3.6 - Vrms
THD=1%
2.2 2.6
- Vrms
Input Gain=+6dB, VIN=100mVrms
Main Volume=Mute,
BW=400Hz-30kHz
Main Volume=0dB
4
-1.5
-
-1
6
0
-100
0
8
1.5
-95
1
dB
dB
dB
dB
Vo=1.5Vrms,BW=400Hz~30kHz
- 0.002 0.01 %
Output Noise Voltage
VNO Main Volume=0dB
- 2.0 7.0 μVrms
Channel Separation
CS Rg=0
-
-110 -90
dB
MUTE TERMINAL CONTROL CHARACTERISTICS(Ta=25C, all controls flat unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Low Level Input Voltage
High Level Input Voltage
VIL
VIH
0 - 0.6 V
2.0 - V+ V
CONTROL TERMINAL EXPLANATION –Mute Terminal-
(Ta=25C, V+=9V, RL=47k, VIN=1.5Vrms, f=1kHz, all controls flat unless otherwise specified)
MODE
STATUS
TEST CONDITION
Mute ON
H Mute is Active
Mute OFF
L Mute is NOT Active
–2–
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TERMINAL DESCRIPTION
Terminal SYMBOL
FUNCTION
1 IN1
2 IN2
3 IN3
4 IN4
AC Input
5
MUTE
MUTE Control
NJU72342
EQUIVALENT CIRCUIT
V+
3kΩ
48kΩ
V REF
Internal VDD
20kΩ
100kΩ
VOLTAGE
V+/2
0V
I2C Data Input
6
SDA
/Acknowledge
Output
7
SCL
I2C Clock Input
V+
26.7Ω
20kΩ
ACK
V+
20kΩ
-
-
–3–
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Номер в каталоге | Описание | Производители |
NJU72340A | 8-CHANNEL ELECTRONIC VOLUME | New Japan Radio |
NJU72341 | 2 Channels Electronic Volume | New Japan Radio |
NJU72342 | 4 Channels Electronic Volume | New Japan Radio |
NJU72343 | 8-CHANNEL ELECTRONIC VOLUME | New Japan Radio |
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