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PT2353 V1.2

- 1 -

March, 2006

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: 0dB 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