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PDF NJM2776 Data sheet ( Hoja de datos )
| Número de pieza | NJM2776 | |
| Descripción | Audio Amplifier / TVSP10 | |
| Fabricantes | JRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJM2776 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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NJM2776
Headphone Amplifier for Portable Audio
s GENERAL DESCRIPTION
The NJM2776 is a low voltage headphone amplifier for
portable audio applications.
The NJM2776 operates directly for one battery supply with
independent power supply terminals (V+1 and V+2).
Also it provides shock-noise less standby mode.
The NJM2776 is suitable for portable MD, portable CD and
others.
s PACKAGE OUTLINE
NJM2776RB2
s FEATURES
q Operating Voltage
q Low Operating Current
q Supply Current in Standby mode
q Output Power Exceeds
q Shock-noise less Standby mode
q Bipolar Technology
q Package Outline
V+1(from step-up converter) =1.8 to 4.5V (however, V+1 > V+2)
V+2(from battery)
=0.9 to 4.5V (however, V+1 > V+2)
ICC4(V+1 side)=200µA typ. (V+1=2.3V, V+2=1.2V, No signal)
ICC3(V+2 side)=350µA typ. (V+1=2.3V, V+2=1.2V, No signal)
ICC2(V+1 side)=25µA typ. (V+1=2.3V, V+2=1.2V)
ICC1(V+2 side)= 6µA typ. (V+1=2.3V, V+2=1.2V)
PO=8.5mW typ. (RL=16Ω, THD=10%)
TVSP10
s PIN CONFIGURATION AND BLOCK DIAGRAM
V+2 1
OUT 1 2
IN 1 3
+-
10 GND
-+
9 OUT 2
8 IN 2
STANDBY TC 4
V+1 5
BIAS
REG
VREF AMP
7 STANDBY
6 VREF
1. V+2
2. OUT1
3. IN1
4. STADBY_TC
5. V+1
6. VREF
7. STANDBY
8. IN2
9. OUT2
10. GND
-1-
1 page  
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s APPLICATION CIRCUIT
NJM2776
C1
22µF
C2
330µF
V+2
OUT 1
R1 C3
10Ω 0.22µF
C4
0.47µF
IN 1
C5
0.33µF
C6
22µF
STANDBY TC
V+1
GND
OUT 2
C10
330µF
C9
IN 2
STANDBY
0.22µF R2
10Ω
C8
0.47µF
V+1
Active
Standby
VREF
C7
22µF
Note) Recommended the capacitors C1, C3, C6 and C9 are featuring higher frequency efficiency
to prevent the oscillation.
-5-
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NJM2776.PDF ] | |
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