Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronic Crossover IC
Preliminary
PT2352
DESCRIPTION
PT2352 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. PT2352 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 -68dB
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
PT2352 pre 1.0
1
Updated January 2001
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronic Crossover IC
Preliminary
PT2352
PIN CONFIGURATION
3D_LED
VDD
ROUT
RIN
RT
CR1
CR2
CR3
C2
REF
C1N
C1P
SOUT
PO
PT2352
PT2352 pre 1.0
2
Updated January 2001
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronic Crossover IC
Preliminary
PT2352
APPLICATION CIRCUIT
V
DD
9V
3D
3D LED
LOUT
100k
LIN
10uf
+
10uf
+
8200p
0.33u
REF
2.2k
220 C
C
SUP
SDW
MUP
MDW
33k
OSC
+
2.2uf
3D_LED
VDD
ROUT
RIN
RT
CR1
CR2
CR3
C2
REF
C1N
C1P
SOUT
PO
V
DD
9V
10uf
ROUT
10uf
RIN
100k
100uf
2.2k
C
C
220
8200p
0.33u
REF
C2
REF
100uf
C1
10uf
SOUT
100k
(See Note 2)
Power
(See Note 2)
PT2352
Notes: 1. Please refer to the PT2352 Crossover Frequency Response Curve for the values of C, C1, C2.
2. Please refer to Power Control (PO) Section of this document.
PT2352 pre 1.0
3
Updated January 2001
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronic Crossover IC
Preliminary
PT2352
ORDER INFORMATION
Valid Part Number
PT2352
PT2352-S
Package Type
28 Pins, DIP Package (600 mil)
28 Pins, SO Package (300 mil)
PT2352 pre 1.0
4
Updated January 2001