NJM2174
AUDIO LINE AMPLIFIER with MUTE FUNCTION
s
GENERAL DESCRIPTION
The
NJM2174
is a low voltage audio line amplifier designed for
audio items.
Internal closed loop voltage gain is suitable for amplifier of small
line signal in digital audio items. It includes mute circuit
which realizes very low turn-noise at power on/off.
It is suitable for digital audio items with line out.
NJM2174V
s
FEARTURES
q
Operating Voltage
q
Operating Current
q
Maximum Output Voltage
q
Closed Loop Voltage Gain
4.5 to 5.5V
+
2.5mA typ. at V =5V
4dBV typ. at THD=0.1%
3.5dB typ. at f=1kHz
2.5dB typ. at f=100kHz
q
Mute Function
-85dB typ.
q
Supply Voltage Rejection Ratio 60dB typ.)
q
Bipolar Technology
q
Package Outline
SSOP14
s
PACKAGE OUTLINE
s
PIN CONFIGURATION
1
2
3
4
5
6
7
14
13
12
11
10
9
8
PIN FUNCTION
8. BIAS
1. GND
9. NC
2. NC
10. NC
3. OUT-R
11. IN-L
4. MUTE 1
12. OUT-L
5. MUTE 2
13. NC
6. MUTE C
+
14. V
7. IN-R
NJM2174V
s
BLOCK DIAGRAM
GND
1
2
3
4
5
6
7
BIAS
MUTE
14 V
+
13
NC
12
OUT-L
11
IN-L
10
NC
9
NC
8
BIAS
NC
OUT-R
MUTE1
MUTE2
MUTEC
IN-R
NJRC [ NEW JAPAN RADIO ]
