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PT2264 데이터시트 PDF




Princeton Technology에서 제조한 전자 부품 PT2264은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 PT2264 기능
기능 Remote Control Encoder IC
제조업체 Princeton Technology
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PT2264 데이터시트, 핀배열, 회로
Remote Control Encoder IC
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2264
DESCRIPTION
PT2264 is a remote control encoder paired with PT2294 utilizing CMOS Technology. It encodes data
and address pins into a serial coded waveform suitable for RF modulation. PT2264 has a maximum of
12 bits of tri-state address pins providing up to 531,441 (or 312) address codes; thereby, drastically
reducing any code collision and unauthorized code scanning possibilities.
FEATURES
CMOS Technology
Low Power Consumption
Very High Noise Immunity
Up to 12 Tri-State Code Address Pins
Up to 4 Data Pins
Wide Range of Operating Voltage: VCC = 8 ~ 15 V
Single Resistor Oscillator
Latch or Momentary Output Type
Available in DIP and SO Package
APPLICATIONS
Remote Control Fan
Home Security/Automation System
Remote Control Toys
Remote Control for Door Bell
PT2264 v1.0
-1-
June, 2004




PT2264 pdf, 반도체, 판매, 대치품
Remote Control Encoder IC
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2264
FUNCTIONAL DESCRIPTION
PT2264 encodes the code address and data set at A0 ~ A7 and A8/D3 ~ A11/D0 into a special
waveform and outputs it to the DOUT when /TE is pulled to “0” (Low State). This waveform is fed to
either the RF modulator for transmission. The transmitted radio frequency is received by the RF
demodulator receiver and reshaped to the special waveform. PT2294 is then used to decode the
waveform and set the corresponding output pin(s). Thus completing a remote control encoding and
decoding function.
RF OPERATION
CODE BITS
A Code Bit is the basic component of the encoded waveform, and can be classified as either an AD
(Address/Data) Bit or a SYNC (Synchronous) Bit.
Address/Data (AD) Bit Waveform
An AD Bit can be designated as Bit “0”, “1” or “f” if it is in low, high or floating state respectively. One bit
waveform consists of 2 pulse cycles. Each pulse cycle has 16 oscillating time periods. For further
details, please refer to the diagram below:
OSC
BIT 0
4
1 bit = 32
BIT 1
BIT f
Floating
12
4
where: = Oscillating Clock Period
Synchronous (Sync.) Bit Waveform
The Synchronous Bit Waveform is 4 bits long with 1/8 bit width pulse. Please refer to the diagram below:
PT2264 v1.0
1/8 bit width = 4
4 bit width = 128
Note: 1 bit = 32
-4-
June, 2004

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PT2264 전자부품, 판매, 대치품
Remote Control Encoder IC
PT2294 DECODER OSC FREQUENCY
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2264
180
160
140
120
100
80
60
40
20
0
2
Rosc =510K
Rosc=620K
Rosc=1.0M
Rosc=1.2M
Rosc=2.2 M
4 6 8 10 12
VOLTAGE (V)
Suggested oscillator resistor values are shown below.
PT2264
1.2M
1.5M
3.3M
PT2294
120K
160K
390K
PT2264 v1.0
-7-
June, 2004

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