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PT2272 Datasheet(PDF) 7 Page - Princeton Technology Corp

Part # PT2272
Description  Remote Control Decoder
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Manufacturer  PTC [Princeton Technology Corp]
Direct Link  http://www.princeton.com.tw
Logo PTC - Princeton Technology Corp

PT2272 Datasheet(HTML) 7 Page - Princeton Technology Corp

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Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2272 V3.7
- 7 -
June, 2008
Remote Control Decoder
PT2272
Synchronous (Sync.) Bit Waveform
The Synchronous Bit Waveform is 4 bits long with 1/8 bit width pulse. Please refer to the diagram
below:
1/8 bit width = 4
4 bit width = 128
Note: 1 bit = 32
CODE WORD
A group of Code Bits is called a Code Word. A Code Word consists of 12 AD bits followed by one Sync
Bit. The 12 AD bits are interpreted as either address or data bits depending on the PT2272 version
used. Please refer to the diagrams below:
PT2272:
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
SYNC
PT2272A–M2/L2:
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
D1
D0
SYNC
PT2272–M3/L3:
A0
A1
A2
A3
A4
A5
A6
A7
A8
D2
D1
D0
SYNC
PT2272–M4/L4:
A0
A1
A2
A3
A4
A5
A6
A7
D3
D2
D1
D0
SYNC
PT2272–M5/L5:
A0
A1
A2
A3
A4
A5
A6
D4
D3
D2
D1
D0
SYNC
PT2272–M6/L6:
A0
A1
A2
A3
A4
A5
D5
D4
D3
D2
D1
D0
SYNC
One Complete Code Word


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