參數(shù)資料
型號(hào): NJM2173A
廠商: New Japan Radio Co., Ltd.
英文描述: LOW VOLTAGE MICROPHONE AMPLIFIER for PORTABLE AUDIO
中文描述: 低電壓的便攜式音頻麥克風(fēng)放大器
文件頁(yè)數(shù): 1/4頁(yè)
文件大?。?/td> 50K
代理商: NJM2173A
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NJM2173A
LOW VOLTAGE MICROPHONE AMPLIFIER for PORTABLE AUDIO
I
GENERAL DESCRIPTION
The
NJM2173
is a low voltage microphone amplifier designed
for portable audio items.
It includes standby, two-type gain selector, and power ripple
rejection adjustment circuit. It realizes very low turn-noise at
standby mode.
It is suitable for portable Mini-Disc, portable Compact-Disc, and
other microphone amplifier application.
I
PACKAGE OUTLINE
I
FEATURES
G
Operating Voltage Range 2.7 to 4.5V
G
Operating Current 2.2mA typ. at V
+
=2.7V
G
Supply Current in Standby Mode 1
μ
A max.
G
Maximum Output Voltage -1.5dBV typ. at THD=0.1%
G
Internal Two-type Gain Select Function 13dB typ./ 29dB typ.
G
Internal Standby Function
G
Power Ripple Rejection Terminal 95dB typ. at Gv=13dB
G
Bipolar Technology
G
Package Outline SSOP14
I
PIN CONFIGURATION
1
2
3
4
5
12
13
14
6
7
11
10
9
8
NJM2173V
I
BLOCK DIAGRAM
1
2
3
4
14
13
12
11
Gv
OUT1
DC CUT1
MIC V
+
1
IN1
DC CUT2
IN2
MIC V
+
2
OUT2
10 Gv
AMP1
5
REG
AMP2
6
NOISE
7
GND
9 STBY
8 V
+
REG
NJM2173V
PIN FUNCTION
1. OUT 1
2. DC CUT 1
3. IN 1
4. MIC V
+
1
5. REG
6. NOISE
7. GND
8. V
+
9. STBY
10. Gv
11. MIC V
+
2
12. IN 2
13. DC CUT 2
14. OUT 2
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