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PDF NJM2769B Data sheet ( Hoja de datos )

Número de pieza NJM2769B
Descripción Audio Amplifier / DMP8 / TVSP8
Fabricantes JRC 
Logotipo JRC Logotipo



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No Preview Available ! NJM2769B Hoja de datos, Descripción, Manual

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NJM2769B
HEADPHONE AMPLIFIER for CD-ROM
! GENERAL DESCRIPTION
The NJM2769B is a headphone amplifier designed for CD-
ROM.
It includes 6dB closed loop gain and mute circuit, requires
few external component.
The NJM2769B realizes very low turn-noise at mute mode.
It is suitable for CD-ROM, and other general audio
headphone amplifier application.
! PACKAGE OUTLINE
NJM2769BM
NJM2769BRB1
! FEATURES
! Operating Voltage
! Operating Current
! Fixed Gain
! Stereo Headphone Output
! Internal Mute Circuit
! Bipolar Technology
! Package Outline
2.8 to 5.5V
2mA typ. at V+=5V
6dB typ.
DMP8,TVSP8
! PIN CONFIGURATION
1
2
3
4
8
7
6
5
PIN FUNCTION
1.OUT1
2.MUTE
3.IN1
4.GND
5.IN2
6.BIAS
7.OUT2
8.V+
! BLOCK DIAGRAM
8765
BIAS
MUTE
123
4
-1-

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NJM2769B pdf
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! TYPICAL CHARACTERISTICS
Oprating Current vs. Operating Voltage
(MUTE=V+)
4
3.5
3
2.5
2
1.5
1
0.5
0
0123 456
Operating Voltage (V)
NJM2769B
Operating Current vs. Ambient Temperature
4
3.5
3
2.5 V+=5V
2
1.5 V+=2.8V
1
0.5
0
-40 -20 0 20 40 60 80 100 120
Ambient Temperature (oC)
Reference Voltage vs. Operating Voltage
3
2.5
2
1.5
1
0.5
0
0123 456
Operating Voltage (V)
Reference Voltage vs. Ambient Temperature
3
2.5 V+=5V
2
1.5
V+=2.8V
1
0.5
0
-40 -20 0 20 40 60 80 100 120
Ambient Temperature (oC)
Power Dissipation vs.Output Power
(V+=5V,f=1KHz)
400
350
RL=16
300
250
200 RL=32
150
100 THD=10%
50
0
0 20 40 60 80 100 120
Output Power (mW)
Power Dissipation vs.Output Power
(V+=2.8V,f=1KHz)
120
RL=16
100
80
60
40 RL=32
THD=10%
20
0
0 5 10 15 20 25
Output Power (mW)
-5-

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