Datasheet > PT2260_06

PT2260_06

更新时间： 2022-12-20 00:40:08

品牌	Logo	应用领域
普诚科技 - PTC		遥控编码器遥控器
页数	文件大小	规格书
16页	298K
描述
Remote Control Encoder

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PT2260_06 数据手册

Tel: 886-2-66296288

Fax: 886-2-29174598

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

Remote Control Encoder

SINGLE OSCILLATOR

PT2260

The built-in oscillator circuitry of PT2260 allows a precision oscillator to be constructed by connecting

an external resistor between OSC and Vcc pins. For PT2270 (or PT2272) to decode correctly the

received waveform, the oscillator frequency of PT2270 (or PT2272) must be 1/16 ~ 4 (or 1/16 ~ 1/4)

times that of the transmitting PT2260. The typical oscillator frequency with various resistor values for

PT2260, PT2270, and PT2272 are shown below:

Encoder (PT2260) OSC Frequency

Decoder (PT2270) OSC Frequency

180

160

140

500

400

OSC Resistor = 510 K

Ohms

120

300

250

200

R=820 K

R=1 M

100

OSC Resistor = 1.0 M

Ohms

OSC Resistor = 1.2 M

Ohms

R=2 M

100

OSC Resistor = 2.2 M

Ohms

9 10 11

Voltage(V)

Voltage(Vcc)

Decoder (PT2272) OSC Frequency

1000

R = 100 K

R = 240 K

R = 510 K

(KHz)

100

R = 1 M

R = 2 M

Voltage(V)

Suggested Oscillator resistor values are shown below.

PT2260

820KΩ

1MΩ

PT2272

510KΩ

620KΩ

1.2MΩ

PT2270

1MΩ

1.2MΩ

2.2MΩ

2MΩ

PT2260 V1.4

- 7 -

April, 2006

1...4 5 678 9 10...16

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