PT2301 데이터 시트보기 (PDF) - Princeton Technology
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PT2301 Datasheet PDF : 5 Pages
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1 Watt Audio Power Amplifier
APPLICATION CIRCUIT II (PT2301-B)
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2301
External
MIC IN
Microphone Jack
Internal MIC IN
MIC OUT
L1L
L2L
C9 1uF R3 10K
C8 1uF R4 10K
C2 1uF
C7 1uF RL1 24K
C6 1uF
RL2 24K
VCC
SCL
SDA
100uF
C4 1uF RR2 24K
L2R
C5 1uF
L1R
RR1 24K
VCC
1 L1L
MIC_SENSE 24
2 L2L
HP_SENSE 23
3 MIC1
LOUT 22
4 VSS2
VP1 21
5 SCL
SP+ 20
6 SDA
NC 19
7 VCC PT2301-B SP- 18
8 MICOUT
VP2 17
9 MIC2
ROUT 16
10 L2R
VSS1 15
11 L1R
/SHUTDOWN 14
12 REF
MUTE 13
Cb
1uF
4.7K
VCC
R8
10K
R7
10K
C11
300uF
4.7K
Cb1
10uF
R10 1K
R9 1K
C12
300uF
VCC
Headphone Jack
8 ohm
VCC
100uF
C3
100uF
/SHUTDOWN
MUTE
Notes
1. The (+) polarity of DC block capacitor installed in the I/O pin of the PT2301 should face towards the
higher potential.
2. The gain setting resistors (R3、R4、RL1、RL2、RR1、RR2 ) should be kept as close as possible
with the PT2301 chip to prevent pick up noises.
PT2301 V1.4
-4-
April, 2006
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