PT2272-L4 データシートの表示（PDF） - Princeton Technology

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PT2272-L4

PT2272 / 2272-M2S / Remote Control Decoder / Available in DIP and SOP

Princeton Technology 

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

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

PT2272 V3.7

-7-

June, 2008

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