SC7461 Просмотр технического описания (PDF) - Silan Microelectronics

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Компоненты Описание

производитель

SC7461

INFRARED REMOTE CONTROL TRANSMITTER

Silan Microelectronics 

Silan

Semiconductors

SC7461

6.SC7461 TRANSMISSION WAVEFORM

The SC7461 Transmission Waveform illustrated below were derived from the time period for fosc=455KHz.

84.4ms

108ms

108ms

Go To Second

Transmission

Go To Second

Transmission and Onwards

9ms

4.5ms

13.5ms

Leader

Code

Custom Code

13bits

Custom Code

13 bits

43.9ms

84.4ms

Key Data Key Data

8bits

8bits

27ms

First Transmission

0.56ms

9ms

4.5ms

13.5ms

010101 1

2.25ms

1.125ms

Second Transmission Onwards (Transmission is available only when key input contimues)

9ms

13.5ms

4.5ms

0.56ms

Carrier Waveform

8.77µs

26.3µs

Carrier Frequency=1/12 fosc=38KHz

FIGURE 8. SC7461 TRANSMISSION WAVEFORM

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.2 2002-02-28.

9

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