PT2315E
Stereo Audio Processor for Home TV Audio
DESCRIPTION
The PT2315E is an audio processor designed for
versatile application, includes master volume control
with low frequency loudness compensation, speaker
output attenuator and tone control. It is a good solution
for the home audio signal processing.
Due to the high reliability requirement from the audio
business, the PT2315E improves both audio
performances and input surge current capability, these
causes the PT2315E is the best solution for the
cost-effective audio systems.
FEATURES
•
Master volume from 0 dB to -78.75dB in 1.25dB/step
•
Speaker attenuator for balance, 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)
•
Low harmonic distortion, low noise
•
Improved and replace PT2315 and PT2315A
APPLICATIONS
•
•
•
Flat Panel TV
Home Audio System
Powered Speaker System
BLOCK DIAGRAM
Speaker Attenuator
With Mute
OUT_L
OUT_R
REF
TREB_L
BIN_L
BOUT_L
REF
TREBLE
Master
Volume
REF
REF
TREBLE
TREB_R
BIN_R
BOUT_R
BASS
BASS
LOUD_L
LOUDNESS
Loud
SW
INT
Ref
LOUDNESS
LOUD_R
LIN
VDD
RIN
SCL
REF
REF
BIAS
I2C
DECODER
SDA
DGND
AGND
Tel: 886-66296288
‧
Fax: 886-29174598
‧
http://www.princeton.com.tw
‧
2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PT2315E
PIN DESCRIPTION
Pin Name
REF
VDD
AGND
TREB_L
TREB_R
RIN
LOUD_R
NC
LOUD_L
NC
LIN
BIN_L
BOUT_L
BIN_R
BOUT_R
OUT_R
OUT_L
DGND
SDA
SCL
I
I
O
I
O
O
O
-
I
I
I
I/O
-
-
-
I
I
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 loudness input
No connect
Left channel loudness input
No connect
Left channel volume controller input
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
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
V1.1
4
March 2010
PT2315E
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
March 2010
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