NJM2171A 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJM2171A Datasheet PDF : 3 Pages
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NJM2171A
LOW VOLTAGE HEADPHONE AMPLIFIER for PORTABLE AUDIO
s GENERAL DESCRIPTION
The NJM2171A is a low voltage headphone amplifier
designed for portable audio items.
The NJM2171A operates directly for battery supply. It
includes mute and standby circuit which require few external
components and realize low current consumption and very low
turn-noise at standby mode.
It is suitable for portable Mini-Disc, portable Compact-Disc,
and other headphone amplifier application.
s PACKAGE OUTLINE
NJM2171AR
s FEATURES
q Operating Voltage
V+1=1.8 to 4.5V
V+2=0.9 to 4.5V
q Operating Current
450µA typ. @V+1=2.3V
700µA typ. @V+2=1.2V
q Supply Current in Power Down Mode
10µA typ. @V+1=2.3V
25µA typ. @V+2=1.2V
q Output Power Exceeds 5mW RL=16Ω
@THD=10%
q Fixed Voltage Gain
11.5dB typ.
q Package Outline
VSP10
q Bipolar Technology
s PIN CONFIGURATION
1
10
2
AMP1
3
9
AMP2
8
4
MUTE 7
5
BIAS
6
PIN FUNCTION
1.V+2
2.OUT1
3.IN1
4.STBY
5.V+1
6.VREF
7.MUTE
8.IN2
9.OUT2
10.GND
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