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PDF NJM2704 Data sheet ( Hoja de datos )
| Número de pieza | NJM2704 | |
| Descripción | 3D SURROUND AUDIO PROCESSOR | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJM2704
3D SURROUND AUDIO PROCESSOR FOR HEADPHONE
s GENERAL DESCRIPTION
The NJM2704 is a high quality 3D surround audio processor
designed for headphone applications.
It includes mode control switches for surround function and
standby function and realizes low consumption power design by
standby function.
In addition to SSOP14, ultra small and thin package FFP12
(Flip-chip Fine Package) is applied. It is suitable for portable
telephone, PDA and any portable audio applications.
s PACKAGE OUTLINE
NJM2704V
NJM2704PB1
s FEATURES
q Operating Voltage
1.8 to 6V
q Low Operating Current
0.45mA typ. (at Active mode)
0.1µA typ. (at Standby mode)
q Low Output Noise
10µV typ. (at Surround mode, VR: max.)
q Variable Surround Effect by external resistor
q Internal Mode Control Switch
q Bipolar Technology
q Package Outline
SSOP14, FFP12
s PIN CONFIGURATION
987
1. VREF
10 6 2. MODE SW
3. RIN
11 5 4. LIN
5. STANDBY SW
12 4 6. LOUT
7. ROUT
123
8. NFL
9. NFR
10. V+
(FFP12)
11. DNC
12. GND
1 14
2 13
3 12
4 11
5 10
69
78
(SSOP14)
1. STANDBY SW
2. LIN
3. RIN
4. MODE SW
5. VREF
6. GND
7. NC
8. DNC
9. V+
10. NFR
11. NFL
12. ROUT
13. LOUT
14. NC
-1-
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sTERMINAL DESCRIPTION
PIN No.
SYMBOL
FFP12 SSOP14
FUNCTION
NJM2704
EQUIVALENT CIRCUIT
V+ V+
V+
Voltage
1
5
VREF
Reference voltage
1.15V
V+ V+
V+
2 4 MODE SW Mode control switch
700
0V
33
42
RIN
LIN
Rch Input
Lch Input
5
1
STANDBY
SW
Standby switch
V+ V+
V+
700
VREF
V+ V+
700 75k
1.15V
0V
-5-
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sTYPICAL CHARACTERISTICS
Voltage Gain vs. SW Terminal Input Voltage
V+=3V Vin=-20dBV Lch f=100Hz Vout=Lch VR=MAX
BYPASS to Surround
20
15
10
Ta=75deg.
5 Ta=25deg.
Ta=-20deg.
0
-5
0 0.5 1 1.5 2
SW Terminal Input Voltage [V]
NJM2704
Output DC Offset Voltage vs. Ambient Temperature
V+=3V
BYPASS to Surround
10
5
Lch
0
Rch
-5
-10
-50
-25 0 25 50 75 100 125
Ambient Temperature [degrees]
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
- 11 -
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet NJM2704.PDF ] | |
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