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URL: http://www.princeton.com.tw
Remote Control Decoder IC
DECODER WITH DATA OUTPUT PINS
PT2270
1. When Power is turned ON, PT2270 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.
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. When the result is a match, it then undergoes another
matching (Address Bits in the Frame vs. Address Configuration of the Pin) and storing (data bits
stored in the memory) process.
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.
PT2270 V1.3
- 10 -
May, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
