PT2604 데이터 시트보기 (PDF) - Princeton Technology

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PT2604

Remote Control Decoder IC

Princeton Technology 

Tel: 886-2-66296288

Fax: 886-2-29174598

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

Remote Control Decoder IC

PT2604

CODE WORD

A Code Word consists of a Start Bit, 12 Address Bits and 6 Data Bits. Please refer to the diagram

below.

Start Bit

12 Address Bits

6 Data Bits

ADDRESS BITS & DATA BITS

Both Address and Data Bits can be designated as Bit “0”, “1” of “f”, if it is in “Low”, “High”, or “Floating”

State respectively. One bit waveform consists of 2 pulse cycles. Each pulse cycle has 48 oscillating

time periods. For further details, please refer to the diagram below.

OSC

Bit "1"

1 bit=96α

3 2α

1 6α

Bit "0"

1 6α

3 2α

Bit "f"

where: α=Oscillating Clock Period

The Data Input Floating State is interpreted as “LOW” by the decoders since the decoder output only

provides for two states.

START BIT

The Start Bit consists of a pilot period (1,216α), followed by a 1/6 bit width pulse and 2-bit.

1 21 6 α

1/6 bit width=16α

1 42 4 α

PT2604 V1.1

-5-

April, 2006

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