Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353H
DESCRIPTION
PT2353H is a 3-speaker system electronic crossover IC utilizing CMOS Technology specially
designed for the new generation of audio equipments. 3-channel electronic volume control, 2-channel
2nd order high pass filter, 2nd order low pass filter and one mono subwoofer audio output are
incorporated into a single high performance chips. PT2353H combines the electronic volume controller
and crossover circuitry without MCU handling. Pin assignments and application circuit are optimized
for easy PCB layout and cost saving advantages.
FEATURES
•
•
•
•
•
•
•
•
CMOS Technology
Low Power Consumption
2 Built-in Individual Volume Control: 0 dB to -60dB
2-Channel 2nd Order High Pass Filter + 1 Mixed Mono Subwoofer Low Pass Filter
Cross-Over Frequency adjustable by external passive components
Control Interface of Volume Control: UP/DOWN Key (MCU is not necessary)
Built-in 3D Effect and Loudness Function
Supply Voltage: 5V to 9V
APPLICATION
•
Audio Equipments
PT2353H v1.0
-1-
November, 2003
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353H
APPLICATION CIRCUIT
VDD 9V
3D LED
3D
VDD 9V
1
L OUT
100K
10uF
VDD 9V
10uF
L IN
100K
/3D
VSS
LOUT
LIN
LT
CL1
CL2
CL3
/SUP
/SDW
/MUP
/MDW
OSC
/PK
3D_LED
VDD
ROUT
RIN
RT
CR1
CR2
PT2353H
28
100uF
2
3
4
5
8n2
2K2
220
C
REF
C
27
26
10uF
100K
R OUT
25
24
2K2
8n2
VDD 9V
**
1K
**
BAV99
u33
**
1K
10uF
R IN
100K
6
7
8
23
220
u33
REF
C
**
BAV99
22
21
20
19
18
17
16
15
C
CR3
C2
REF
C1N
C1P
/SUP
9
10
11
12
13
14
/SDW
REF
100uF
C2
/MUP
/MDW
C1
33K
SOUT
PO
10uF
S OUT
100K
2u2
Power Key
*
Notes:
1. Please refer to the PT2353H Crossover Frequency Response Curve for the values of C, C1,
and C2.
2. Please refer to Power Control (PO) Section of this document.
3. ** For input port high voltage pulse protection.
PT2353H v1.0
-4-
November, 2003
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353H
ORDER INFORMATION
Valid Part Number
PT2353H
PT2353H-S
Package Type
28 Pins, DIP Package (600 mil)
28 Pins, SO Package (300 mil)
Top Code
PT2353H
PT2353H-S
PT2353H v1.0
-5-
November, 2003