PT2313E
Stereo Audio Processor for Car Audio
DESCRIPTION
The PT2313E is an audio processor designed for
versatile application, includes 3 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 car
audio business, the PT2313E improves both audio
performances and input surge current capability, these
causes the PT2313E is the best solution for the
cost-effective car audio systems.
FEATURES
•
3 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 PT2313L
APPLICATIONS
•
Car Audio
•
Home Audio System
•
Powered Speaker System
APPLICATION CIRCUIT
PT2313E
22uF
1 REF
SCL 28
SDA 27
DGND 26
LFOUT 25
RFOUT 24
LROUT 23
RROUT 22
BOUT_R 21
BIN_R 20
BOUT_L 19
BIN_L 18
LOUT 17
LIN 16
LIN1 15
10uF
10uF
10uF
10uF
100n
100n
100n
100n
2.2uF
5.6K
Rear Right
Front Right
Front Left
VDD
2
VDD
MCU
3 AGND
4
2.7n
2.7n
5
6
7
TREB_L
TREB_R
RIN
ROUT
Input Surge
P rotection
L
A UDIO 3
R
L
A UDIO 2
R
L
A UDIO 1
R
2.2K
2.2K
2.2K
2.2K
2.2K
2.2K
2.2uF
2.2uF
2.2uF
2.2uF
2.2uF
8 LOUD_R
100n
9
RIN3
5.6K
Rear Left
10 RIN2
11 RIN1
12 LOUD_L
100n
2.2uF
2.2uF
13 LIN3
14 LIN2
P ower
A mplifier
Tel: 886-66296288
‧
Fax: 886-29174598
‧
http://www.princeton.com.tw
‧
2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PT2313E
PIN DESCRIPTION
Pin Name
REF
VDD
AGND
TREB_L
TREB_R
RIN
ROUT
LOUD_R
RIN3
RIN2
RIN1
LOUD_L
LIN3
LIN2
LIN1
LIN
LOUT
BIN_L
BOUT_L
BIN_R
BOUT_R
RROUT
LROUT
RFOUT
LFOUT
DGND
SDA
SCL
I/O
-
-
-
I
I
I
O
I
I
I
I
I
I
I
I
I
O
I
O
I
O
O
O
O
O
-
I
I
Description
Analog reference voltage (1/2VDD)
Supply input voltage
Analog ground
Left channel input for treble controller
Right channel input for treble controller
Right channel volume controller input
Right channel Input selector output
Right channel loudness input
Right channel input 3
Right channel input 2
Right channel input 1
Left channel loudness input
Left channel input 3
Left channel input 2
Left channel input 1
Left channel volume controller input
Left channel Input selector output
Left channel input for bass controller
Left channel output for bass controller
Right channel input for bass controller
Right channel output for bass controller
Right rear speaker output
Left rear speaker output
Right front speaker output
Left front speaker output
Digital ground
I
2
C data input
I
2
C clock input
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
V1.1
4
January 2010
PT2313E
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and to discontinue any product without notice at any time.
PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No
circuit patent licenses are implied.
Princeton Technology Corp.
2F, 233-1, Baociao Road,
Sindian, Taipei 23145, Taiwan
Tel: 886-2-66296288
Fax: 886-2-29174598
http://www.princeton.com.tw
V1.1
5
January 2010
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EEWORLD
