NJU72341 PDF даташит
Спецификация NJU72341 изготовлена «New Japan Radio» и имеет функцию, называемую «2 Channels Electronic Volume». |
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Детали детали
Номер произв | NJU72341 |
Описание | 2 Channels Electronic Volume |
Производители | New Japan Radio |
логотип |
14 Pages
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NJU72341
2 Channels Electronic Volume
GENERAL DESCRIPTION
The NJU72341 is a 2 channels I2C electronic volume IC with
external mute controls.
The NJU72341 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
MUTE
SDA
SCL
I2C
OUT1
OUT2
V r ef
Zero Cross
Detection
No. Symbol
1 NC
2 NC
3 IN1
4 IN2
5 MUTE
6 SDA
7 SCL
8 V+
9 VREF
10 GND
11 OUT2
12 OUT1
13 NC
14 NC
Function
-
-
Input Terminal 1
Input Terminal 2
Mute Terminal
I2C Data Input Terminal
/Acknowledge Output
I2C Clock Terminal
Power Supply Terminal
Reference Voltage
Terminal
Ground Terminal
Output Terminal 2
Output Terminal 1
-
-
Ver.0.8E
–1–
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NJU72341
ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER
SYMBOL
RATING
Supply Voltage
V+
+15
Power Dissipation
Maximum Input Voltage
Operating Temperature Range
PD
VIMAX
Topr
450 (Note1)
0 ~ V+ (Note2)
-40 ~ +85
Storage Temperature Range
Tstg
-40 ~ +125
(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.
Operating Voltage
V+
4.5
Supply Current
Reference Voltage
IDD
VREF
No signal
No signal
-
4.0
Maximum Input Voltage
VINS
Main Volume=-6dB,THD=1%
-
Maximum Output Voltage
VOM
THD=1%
2.2
Voltage Gain 1
GV1
Input Gain=+6dB, VIN=100mVrms
4
Voltage Gain 2
GV2
-1.5
Voltage Gain 3
GV3
Main Volume=Mute,
BW=400Hz-30kHz
-
Channel Balance
GCB Main Volume=0dB
-1
Total Harmonic Distortion
THD
Vo=1.5Vrms,BW=400Hz~30kHz
-
Output Noise Voltage
Channel Separation
VNO Main Volume=0dB
CS Rg=0
-
-
UNIT
V
mW
V
C
C
TYP.
9
5.5
4.5
3.6
2.6
6
0
MAX.
14.5
9
5.0
-
-
8
1.5
UNIT
V
mA
V
Vrms
Vrms
dB
dB
-106 -95
dB
0
0.002
2.0
-110
1
0.01
7.0
-90
dB
%
μVrms
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
3 IN1
4 IN2
AC Input
5
MUTE
MUTE Control
NJU72341
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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