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PT2272-M3S Datasheet(PDF) 11 Page - Princeton Technology Corp |
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PT2272-M3S Datasheet(HTML) 11 Page - Princeton Technology Corp |
11 / 22 page Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2272 V3.7 - 11 - June, 2008 Remote Control Decoder PT2272 OPERATION FLOWCHART DECODER WITHOUT DATA OUTPUT PIN 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 received are compared with the address configuration of the pins. 3. The VT goes high signifying the validation of transmission only when there are two (2) continuous frames that contain matched address bits; otherwise, VT will not be activated and the Stand-By Mode remains active. 4. Then, the Address Bits are again checked. Two continuous mismatches of the address bits would disable the VT and make the Stand-By Mode active; otherwise, the address bits are continuously checked. Power ON Stand-By Mode Signal In? Address Bits Match? Activate VT Address Bits Still Match? Address Bits Still Match? Yes No No Yes No Yes No Yes Yes No Disable VT Address Bits Match? |
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