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PT2389 V1.5

- 5 -

July, 2006

5-Mode Preset Equalizer IC with Bass Booster & 3D Effect

PT2389

FUNCTION DESCRIPTION

PT2389 is a 5-Mode Preset Equalizer IC with a Bass Booster and 3D Effects. It has 2 types of key

selection mode, namely: Direct and Cyclic. The Direct or Cyclic Key Selection Mode is determined by

the SEL Pin. Please refer to the table below:

SEL pin

Description

Direct

Low

Cyclic *

Floating/High

* Press Cyc Key

Note:

The Bass Booster Function and the 3D Effect can be controlled in the same manner under the Direct or

the Cyclic Key Selection Mode. To turn the Bass Booster On or Off, press the BB Key. To turn the 3D

Effect On or Off, press the 3D Key.

CYCLIC KEY SELECTION MODE

Power

On

Flat

Mode

Rock

Mode

Pops

Mode

BB Key, 3D Key Control

Bass Booster, 3D Effect

On or Off

Jazz

Mode

Classic

Mode

Press Cyc

Press Cyc

Press Cyc

Press Cyc

Press Cyc

After power on, PT2389 is Flat Mode, under this mode, any of the sound selections (Flat, Rock, Pops,

Classic, Jazz) may be selected by pressing the CYC Key. BB key and 3D key is the switch of Bass

Booster and 3D Effect (Bass Booster and 3D Effect if Off when Power On)