Preliminary PT2314E
Stereo Audio Processor for Home/TV Audio
DESCRIPTION
The PT2314E is an audio processor designed for
versatile application, includes 4 stereo input selector
with adjustable gain, 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 PT2314E improves
both audio
performances and input surge current capability, these
causes the PT2314E is the best solution for the
cost-effective audio systems.
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, 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 PT2314 and PT2314A
APPLICATIONS
•
Flat Panel TV
•
Home Audio System
•
Powered Speaker System
APPLICATION CIRCUIT
PT2314E
VDD
1 VDD
2 AGND
REF 28
SCL 27
SDA 26
DGND 25
OUT_L 24
OUT_R 23
BOUT_R 22
BIN_R 21
BOUT_L 20
BIN_L 19
LOUT 18
LIN 17
LIN1 16
LIN2 15
22uF
Input Surge
Protection
L
AUDIO 4
R
L
AUDIO 3
R
L
AUDIO 2
R
L
AUDIO 1
R
2.2K
2.2K
2.2K
2.2K
2.2K
2.2K
2.2K
2.2K
2.2uF
2.2uF
2.2uF
2.2uF
2.2uF
2.2uF
27n
27n
2.2uF
3 TREB_L
4 TREB_R
5 RIN
6 ROUT
7 LOUD_R
8 RIN4
9 RIN3
10 RIN2
11 RIN1
12 LOUD_L
MCU
Front Left
10uF
10uF
100n
100n
100n
100n
2.2uF
5.6K
Front Right
5.6K
100n
Power
Amplifier
100n
2.2uF
2.2uF
13 LIN4
14 LIN3
Tel: 886-66296288
‧
Fax: 886-29174598
‧
http://www.princeton.com.tw
‧
2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PTC [ PRINCETON TECHNOLOGY CORP ]
