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PT2353 V1.2

- 7 -

March, 2006

Satellite + Subwoofer 3-Speaker System Electronics Crossover IC

PT2353

The equivalent circuit is shown below.

OUT

IN

29K

LT

22K

AGND

Step 0

Step 1

Step 2

Step 9

Step 10

Step 11

Step 31

Step 30

VOLUME INITIALIZATION

After power is turned ON, the volume control value of the main channel is set to the initial setting of

-30dB step while the subwoofer channel will be set at 0dB.

The PT2353 loudness frequency response curve from Step 0 to Step 31 is given below.

Step 0

Step 31