PT2350-S データシートの表示（PDF） - Princeton Technology
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PT2350-S Datasheet PDF : 4 Pages
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Princeton Technology Corp.
Tel: 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Tone Control Subwoofer Cross-Over Low Pass Filter IC
PT2350
APPLICATION CIRCUIT
Left
Channel Input 3 +
2
10KVR 1
(A)
4.7uF
Left Channel Bass Control VR
CL1
3
10K
2
0.05uF
1 100K (B) VR
Left Channel Treble Control VR
3
100K (B) VR 2 CH1 0.005uF
1
Left
+
Channel Output 4.7uF/16V
+ 0.15uf
4.7uF/16V
LIN
LB1
LB2
LB3
LT1
LT2
LOUT
VREF
C2
Vss
RIN
RB1
RB2
RB3
RT1
RT2
ROUT
SOUT
C1
VDD
PT2350
Right
3 Channel Input
2 10K VR
4.7uF 1 (A)
Right Channel Bass Control VR
10K 2 3
CL2
100K (B) VR 1 0.05uF
Right Channel Treble Control VR
0.005uF CH2
3
2 100K (B) VR
1
Right
4.7uF/16V
Channel Output
C1 0.068uF
Subwoofer Output
4.7uF/16V
12V
220Ohms
8.2VZD
100uF
Notes: 1. If you use the above values: Treble Control Range = 4KHz + 10 dB
Bass Control Range = 50 Hz + 10 dB
Subwoofer Output Roll-Off Point is at -3dB at 130Hz
Slope Rate = -12dB/oct
2. It is recommended that you use Mylar or Metal Capacitors for better audio quality.
3. Please do not connect 0.1µF or any by-pass capacitor between the GND and VDD.
Ref. No. 2350 v1.1
3
Written July 1999
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