PT2307 Просмотр технического описания (PDF) - Princeton Technology
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PT2307 Datasheet PDF : 5 Pages
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1W Audio Power Integration Amplifier
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2307
APPLICATION CIRCUIT I (PT2307-A)
VCC
J1
2
4
EXTERNAL MICIN
3
1
MICROPHONE JACK
INTERNAL MICIN
MICOUT
C9
1F
C8
1F
C2
1F
R3
10K
R4
10K
4.7K
4.7K
10 F Cb1
C7
RL1 24K
L1L
1F
1 L1L
2 L2L
MIC_SENSE 24
HP_SENSE 23
C6
RL2 24K
3 MIC1
LOUT 22
2
J1
4
3
1
L2L
VCC
1F
4 VSS2
VP1 21
EARPHONE JACK STEREO
SCL
5 SCL
SP+ 20
VCC
SDA
6 SDA
VEE 19
8
7 VCC
SP- 18
+
VCC
100 F
8 MICOUT
VP2 17
+ + C3
9 MIC2
C4
RR2 24K
ROUT 16
100 F 100 F
L2R
1F
10 L2R
VSS1 15
11 L1R
/SHUTDOWN 14
/SHUTDOWN
C5
RR1 24K
12 REF
MUTE 13
L1R
+
1F
1 F Cb
PT2307
MUTE
0
Note 1: The I/O capacitor’s positive polarity must face to the higher voltage side.
Note 2: Due to the earphone output capacitor-free circuitry, the Pin23 HP_SENSE should be returned
back from the Pin22 LOUT。
Note 3: In the circuit board layout, the input resistors R3、R4、RL1、RL2、RR1、RR2 must placed very
close to the PT2307.
PT2307 V1.0
-3-
September, 2004
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