PT2353 [PTC]
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC; 卫星+低音炮3扬声器系统电子分频器IC
| 型号： | PT2353 |
| 厂家： | 
PRINCETON TECHNOLOGY CORP |
| 描述： | Satellite + Subwoofer 3-Speaker System Electronics Crossover IC |
| 文件： | 总5页 (文件大小：82K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353
DESCRIPTION
PT2353 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. PT2353 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
- 1 -
PT2353 v1.1
November, 2003
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353
BLOCK DIAGRAM
LIN
Main
Volume
LOUT
ROUT
HPF
HPF
REF
3D
Effect
Circuit
RIN
Main
Volume
REF
REF
+
+
VDD
REF
VSS
Subwoofer
Volume
+
LPF
+
SOUT
REF
Control Unit
3D
PO
MUP
3D
SUP
SDW
PK
- 2 -
PT2353 v1.1
November, 2003
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353
PIN CONFIGURATION
3D_LED
VDD
ROUT
RIN
RT
CR1
CR2
CR3
C2
REF
C1N
C1P
SOUT
PO
- 3 -
PT2353 v1.1
November, 2003
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353
APPLICATION CIRCUIT
VDD 9V
3D LED
VDD 9V
3D
1
28
27
26
25
/3D
3D_LED
VDD
ROUT
RIN
100uF
2
L OUT
VSS
R OUT
100K
100K
3
LOUT
10uF
10uF
VDD 9V
4
5
VDD 9V
LIN
LT
10uF
100K
**
**
1K
1K
24
23
L IN
R IN
RT
2K2
220
2K2
8n2
u33
8n2
u33
10uF
100K
**
**
BAV99
BAV99
6
CL1
CR1
220
C
C
C
C
22
REF
7
REF
CR2
CL2
CL3
8
21
20
19
18
17
16
15
CR3
PT2353
/SUP
9
/SUP
C2
REF
C1N
C1P
/SDW
/MUP
/MDW
10
11
REF
/SDW
/MUP
/MDW
C2
100uF
C1
12
13
10uF
33K
2u2
S OUT
SOUT
PO
OSC
/PK
100K
14
Power Key
*
Notes:
1. Please refer to the PT2353 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.
- 4 -
PT2353 v1.1
November, 2003
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Satellite + Subwoofer 3-Speaker System Electronics Crossover IC
PT2353
ORDER INFORMATION
Valid Part Number
Package Type
PT2353
PT2353-S
28 Pins, DIP Package (600 mil)
28 Pins, SO Package (300 mil)
- 5 -
PT2353 v1.1
November, 2003
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