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PT2249A_PT2250A V2.6

- 10 -

May, 2007

Remote Control Receiver IC

PT2249A_PT2250A

CYCLIC PULSE (CP1~CP2)

When signal is received, the cyclic pulse output is reversed. This cyclic pulse is used for Power

ON/OFF, MUTE, etc.

The relationship between CP1 and CP2 (in the PT2249A Series) is shown in the diagram below:

PT2249AL:

• CP1 may not be set to “H” level when CP2 is in “H” Level.

• CP1 is reset to “L” level whenever CP2 is set to “H” level.

PT2249AHN:

• CP1 may not be set to "H" Level when CP2 or HP1 or HP2 is in "H" Level.

• CP1 is reset to "L" Level whenever CP2 or HP1 or HP2 is set to "H" Level.