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.
APPLICATIONS
• Flat Panel TV
• 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, 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
APPLICATION CIRCUIT
VDD
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
PT2314E
1 VDD
2 AGND
3 TREB_L
2.7n
4 TREB_R
2.7n
5 RIN
2.2uF
6 ROUT
7 LOUD_R
100n
8 RIN4
9 RIN3
10 RIN2
11 RIN1
12 LOUD_L
100n
13 LIN4
14 LIN3
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
MCU
10uF
10uF
100n
5.6K
100n
100n
5.6K
100n
2.2uF
Front Left
Front Right
Power
Amplifier
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan