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PT2272 V3.7

- 12 -

June, 2008

Remote Control Decoder

PT2272

DECODER WITH DATA OUTPUT PINS

1. When Power is turned ON, PT2272 activates the Stand-By Mode.

2. It then searches for signals. If there is no signal received, it remains in the Stand-By Mode;

otherwise, the address bits are compared with the address configuration of the pins.

3. Whenever the Address Bits in a Frame match with that of the Address Configuration of the Pin, the

data bits are stored into the memory. Also, when this IC finds two (2) continuous and identical data

having the same address bits, the data output(s) is activated and the VT is enabled. The VT is

disabled when there are 2 continuous mismatched addresses. For the momentary type, the data

output is reset; while for the latch type, the data output is sustained.

Power ON

Stand-By Mode

Signal In?

Address

Bit Match?

Match

Previous Data?

Store Data Bits

Address Bits

Match?

Data Bits Output

& Activate VT

Address Bits

Still Match?

Address Bits

Still Match?

Yes

No

No

Yes

No

No

Yes

Yes

No

Yes

Yes

No

Disable VT &

Reset Output Data

(For Momentary Type)

Disable VT &

Sustain Output Data

(For Latch Type)