PT2312E 데이터 시트보기 (PDF) - Princeton Technology
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PT2312E Datasheet PDF : 5 Pages
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PT2312E
Stereo Audio Processor for Car Audio
DESCRIPTION
The PT2312E is an audio processor designed for
versatile application, includes 4 stereo input selector with
adjustable gain, master volume control with low
frequency loudness compensation, individual output
attenuator and tone control. It is a good solution for the
car audio signal processing.
Due to the high reliability requirement from the audio
business, the PT2312E improves both audio
performances and input surge current capability, these
causes the PT2312E is the best solution for the
cost-effective audio systems.
APPLICATIONS
• Car Audio
• Home Audio System
• Powered Speaker System
FEATURES
• 4 stereo inputs with gain selection, range from 0dB
to +11.25dB in 3.75dB/step
• Master volume from 0 dB to -78.75dB in
1.25dB/step
• Speaker attenuator for balance and fader, range
from 0dB to -38.75dB in 1.25dB/step
• Each channel output can be muted individually.
• Low frequency loudness compensation
• Bass and Treble control, range from -14dB to
+14dB in 2dB/step
• Wide operation range (VDD=4V to 10V)
• Improved and replace PT2312 and PT2312A
APPLICATION CIRCUIT
PT2312E
22uF
1 REF
SCL 32
VDD
2 VDD
SDA 31
3 AGND
DGND 30
Input Surge
Protection
L
AUDIO 4
2.2K
2.2uF
R
2.2K
2.2uF
L
AUDIO 3
2.2K
2.2uF
R
2.2K
2.2uF
L
AUDIO 2
2.2K
2.2uF
R
2.2K
2.2uF
L
AUDIO 1
2.2K
2.2uF
R
2.2K
2.2uF
4 NC
5 TREB_L
2.7n
6 TREB_R
2.7n
7 RIN
2.2uF
8 ROUT
9 LOUD_R
100n
10 RIN4
11 RIN3
12 RIN2
13 RIN1
14 NC
15 LOUD_L
100n
16 LIN4
LFOUT 29
RFOUT 28
LROUT 27
RROUT 26
BOUT_R 25
BIN_R 24
BOUT_L 23
BIN_L 22
LOUT 21
LIN 20
LIN1 19
LIN2 18
LIN3 17
MCU
10uF
10uF
10uF
10uF
100n
5.6K
100n
100n
5.6K
100n
2.2uF
Front Left
Front Right
Rear Left
Rear Right
Power
Amplifier
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
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