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NJM2777V Datasheet(PDF) 1 Page - New Japan Radio

Part # NJM2777V
Description  Headphone Amplifier with Electronic Volume
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Manufacturer  NJRC [New Japan Radio]
Direct Link  http://www.jrc.co.jp/eng/index.html
Logo NJRC - New Japan Radio

NJM2777V Datasheet(HTML) 1 Page - New Japan Radio

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NJM2777
– 1 –
Headphone Amplifier with Electronic Volume
I
I
I
I GENERAL DESCRIPTION
NJM2777 is a headphone amplifier with electronic volume. It
includes widely gain adjustable volume, +20 to –80 dB, and mute
function. These are controlled by DC voltage. The NJM2777 is
suitable for headphone output on TV set.
I
I
I
I FEATURES
G Operating Voltage
8 to 10 V
G Electronic Volume
+20dB to -80dB
G Mute Function
G Bipolar
G Package Outline
DIP14, DMP14, SSOP14
I
I
I
I BLOCK DIAGRAM
I
I
I
I PIN FUNCTION
I
I
I
I PACKAGE OUTLINE
VOL
IN b
IN a
VOL
Vref
V+ GND
OUTa
OUTb
CNTb
CNTa
Mute
Bias
Mute
CAPa
CAPb
1
7
8
14
No.
SYMBOL
FUNCTION
No.
SYMBOL
FUNCTION
1
V+
Power Supply
8
N.C.
No connecting
2
OUTb
Bch Output
9
Vref
Reference voltage stabilized
capacitor connect terminal
3
CNTb
Bch Volume control voltage
input
10
INa
Ach Input
4
CAPb
Bch Volume control click
noise absorbing capacitor
connect terminal
11
CAPa
Ach Volume control click
noise absorbing capacitor
connect terminal
5
INb
Bch Input
12
CNTa
Ach Volume control voltage
input
6
Mute
Mute control
13
OUTa
Ach Output
7
N.C.
No connecting
14
GND
Ground
NJM2777D
NJM2777M
NJM2777V


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