Ref. No. 2350 v1.1

1

Written July 1999

Tone Control Subwoofer Low Pass Filter IC

Princeton Technology Corp.

Tel: 886-2-29162151

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

PT2350

DESCRIPTION

PT2350 is a tone control subwoofer cross-over low pass filter chip utilizing CMOS Technology. It features

a tone control range of + 10dB (50Hz, 4 KHz) and subwoofer low pass filter of the second order Sallen

Key Design. The roll-off point can be adjusted by changing the value of the external capacitor. Pin assign-

ments and application circuits are optimized for easy PCB Layout and cost saving advantages.

FEATURES

!CMOS Technology

!2 - Channel Input

!3 - Channel Output (Including 1 stereo Output and Subwoofer Output)

!Low Total Harmonic Distortion (THD<0.01%, Subwoofer THD<0.2%)

!High S/N Ratio (S/N Ratio <-87dB, A-weighting)

!Least External Components

!Adjustment of Frequency response by changing the value of the external component

!Single Power Supply: 3 to 8.5 Volts

!Available in 20 pins, DIP or SO Package

APPLICATIONS

!Multi-Media 3D Satellite Speaker and Subwoofer System

!Car Audio

!Audio Equipment

!Sound Card

!Other Electrical Audio Equipment