NJM2790 Datasheet, PDF (1/3 Pages) New Japan Radio – AUDIO LINE AMPLIFIER with MUTE FUNCTION

NJM2790
AUDIO LINE AMPLIFIER with MUTE FUNCTION
s GENERAL DESCRIPTION
The NJM2790 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.
The NJM2790 is 6.5dB closed loop voltage gain, another
version of 3.5dB is the NJM2174.
It is suitable for digital audio items with line out.
s PACKAGE OUTLINE
NJM2790V
s FEARTURES
q Operating Voltage
q Operating Current
4.5 to 5.5V
2.5mA typ. at V⁺=5V
q Maximum Output Voltage
4dBV typ. at THD=0.1%
q Closed Loop Voltage Gain
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 PIN CONFIGURATION
1
14
2
13
3
12
4
11
5
10
6
9
7
8
NJM2790V
PIN FUNCTION
1. GND
8. BIAS
2. NC
3. OUT-R
4. MUTE 1
9. NC
10. NC
11. IN-L
5. MUTE 2
6. MUTE C
7. IN-R
12. OUT-L
13. NC
14. V⁺
s BLOCK DIAGRAM
GND 1
NC 2
OUT-R 3
MUTE1 4
MUTE2 5 MUTE
MUTEC 6
IN-R 7
14 V⁺
13 NC
12 OUT-L
11 IN-L
10 NC
9 NC
BIAS 8 BIAS
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