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NJW1109

Description
Headphone Amplifier with Electronic Volume
File Size180KB,14 Pages
ManufacturerNew JRC
Websitehttps://www.njr.com
Download Datasheet Compare View All

NJW1109 Overview

Headphone Amplifier with Electronic Volume

NJW1109
Headphone Amplifier with Electronic Volume
s
GENERAL DESCRIPTION
The
NJW1109
is a headphone amplifier with electronic volume. It
includes widely gain adjustable volume, +20 to –80 dB, and mute
2
function. These are controlled by I C bus. The
NJW1109
is
suitable for headphone output on TV set.
s
PACKAGE OUTLINE
NJW1109D
NJW1109M
NJW1109V
s
FEATURES
q
Operating Voltage
q
Electronic Volume
2
q
I C Bus Interface
q
Bi-CMOS Technology
q
Package Outline
s
BLOCK DIAGRAM
7.5 to 10 V
+20dB to -80dB / 0.5dB step, Mute
DIP14, DMP14, SSOP14
CAPa
SDA SCL
IC
Interface
2
ADR
OUTa
IN a
VOL
IN b
VOL
OUTb
Bias
Vref
CAPb
s
PIN FUNCTION
No.
1
1
14
2
3
4
5
7
8
6
7
SYMBOL
V+ GND
V+
OUTb
N.C.
CAPb
INb
ADR
SDA
FUNCTION
Power Supply
Bch Output
No Connect
Balance control click noise
absorbing capacitor connect
terminal
Bch Input
I
2
C Bus Slave Address
Select
I
2
C Bus Data Input
No.
8
9
10
11
12
13
14
SYMBOL
SCL
Vref
INa
CAPa
N.C.
OUTa
GND
FUNCTION
I
2
C Bus Clock Input
Reference voltage stabilized
capacitor connect terminal
Ach Input
Volume control click noise
absorbing capacitor connect
terminal
No Connect
Ach Output
Ground
–1–

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NJW1109 NJW1109V
Description Headphone Amplifier with Electronic Volume Headphone Amplifier with Electronic Volume
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