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PDF NJU72344 Data sheet ( Hoja de datos )
| Número de pieza | NJU72344 | |
| Descripción | 2-CHANNEL ELECTRONIC VOLUME | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJU72344 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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NJU72344
2-CHANNEL ELECTRONIC VOLUME
GENERAL DESCRIPTION
The NJU72344 is a 2 channels electronic volume IC.
The NJU72344 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 2-wired serial BUS interface.
PACKAGE OUTLINE
NJU72344V
FEATURES
Operating Voltage
Volume
Low Distortion
Low Noise
External Mute Control
Zero Cross Detection
2-wired serial BUS Control
CMOS Technology
Package
BLOCK DIAGRAM
±4.5 to ±7.5V
0 to -95dB/1dBstep, Mute
0, +3, +6, +12, +18, +24dB
0.001% typ.
-114dBV typ.
SSOP14
PIN CONFIGURATION
InA OutA
InB OutB
Control Logic
Zero
Cross
Detection
DATA CLOCK MUTE
No. Symbol
Function
1 NC
No Connect
2 NC
No Connect
3 InA
Ach Input Terminal
4 InB
Bch Input Terminal
5 MUTE
Mute Control Terminal
6 DATA
Control Data
Signal Input Terminal
7 CLOCK Clock Signal Input Terminal
8 V+
Power Supply (+)
9 REF
Reference Voltage
Terminal
10 V-
Power Supply (-)
11 OutB
Bch Output Terminal
12 OutA
Ach Output Terminal
13 NC
No Connect
14 NC
No Connect
Ver.1.6E
–1–
1 page  
APPLICATION CIRCUIT
NC
1
NC
2
10μF
+
InA
3
10μF
+
InB
4
V+
MUTE
5 Zero Cross
Detection
DATA
6
CLOCK
7
2-wire
NJU72344
Bias
NC
14
NC
13
OutA 10μF
12 +
OutB 10μF
11 +
V-
10
V-
REF
9
22μF
+
V+
V+
8
22μF
+
–5–
5 Page 
NJU72344
TYPICAL CHARACTERISTICS
THD+N vs Input Voltage
V=±7V, BW: 22Hz-30kHz
10
1
0.1 f=10kHz
0.01
f=1kHz
f=100Hz
0.001
0.0001
0.01
0.1 1
Input Voltage [Vrms]
THD+N vs Frequency
V±=7V, BW: 22Hz-80kHz
10
10
1
0.1
0.01
0.001
Vin=2Vrms
Vin=1Vrms
0.0001
10
100
1000
10000
Frequency [Hz]
100000
Output Voltage vs Mute Terminal Voltage
V=±7V, f=1kHz, Vin=1Vrms
20
0
V=±7.5V
-20 V=±7.0V
-40 V=±4.5V
-60
-80
-100
-120
1
1.5 2
Mute Terminal Voltage [V]
2.5
THD+N vs Input Voltage
V=±7V, f=1kHz, BW: 400Hz-30kHz
10
VOL=0dB
1 VOL=-10dB
VOL=-20dB
0.1 VOL=-30dB
0.01
0.001
0.0001
0.01
0.1 1
Input Voltage [Vrms]
10
Channel Separation vs Frequency
V=±7V, Vin=2Vrms, Bandpass,
I/O=InB-OutA, Rg=InA
0
-20 Rg=5.1kΩ
-40 Rg=3.3kΩ
Rg=620Ω
-60
Rg=0Ω
-80
-100
-120
-140
10
100
1000
10000
Frequency [Hz]
100000
Output Voltage vs Mute Terminal Voltage
V=±7V, f=1kHz, Vin=1Vrms
20
0
Ta=+85˚C
-20 Ta=+25˚C
-40 Ta=-40˚C
-60
-80
-100
-120
1
1.5 2
Mute Terminal Voltage [V]
2.5
– 11 –
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NJU72344.PDF ] | |
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