NJU8753 Ver la hoja de datos (PDF) - Japan Radio Corporation
Número de pieza
componentes Descripción
Fabricante
NJU8753
Japan Radio Corporation
NJU8753 Datasheet PDF : 7 Pages
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NJU3857553
PIN DESCRIPTION
No.
SYMBOL
I/O
Function
1
TEST1
I
Maker test 1
This pin must be connected to GND.
2
TEST3
I
Maker test 3
This pin must be connected to GND.
3
VREG
− Switching regulator Power Supply : VREG=2.85V
4
FB
I Switching regulator Feedback resistor
5
VSS
− Power GND : VSS=0V
6,7
VSS1
− Switching regulator Power GND : VSS1=0V
8,9
LX
I Switching regulator voltage input
10
VOUT
− Switching regulator Power Supply : Vout=10.0V
11
VR
O Switching regulator Output voltage
Switching regulator Standby Control
12
EN2
I
High : Step-up ON Low : Standby ON
This pin must be connected to VREG when step-up ON.
13
NC
− Non connection
14, 15
16
17
18
VDDO
OUTN
VSS
NC
− Output Power supply
O Negative Output
− Power GND : VSS=0V
− Non connection
19
20
21, 22
23
VSS
OUTP
VDDO
TEST2
− Power GND : VSS=0V
O Positive output
− Output Power supply
I
Maker Test 2
This pin must be connected to GND.
Power Amplifier Standby Control
24
EN1
I
High : Standby OFF Low : Standby ON
This pin must be connected to VDD when Standby OFF.
25
COM
− Analog common
26
IN
I Audio Signal Input
27
VSS
I Power GND : VSS=0V
28
VDD
− Power Supply : VDD=2.85V
*Pin No.5(VSS), 6(VSS1), 7(VSS1), 17(VSS), 19(VSS), 27(VSS) should be connected at the nearest
point to the IC.
*Pin No.14(VDDO) , 15(VDDO), 21(VDDO), 22(VDDO) should be connected at the nearest point to the IC.
*Pin No.3(VREG) and 28(VDD) must be connected to VDD, when these pins are not used.
Ver.2003-09-26
-3-
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