LG 42LP1R User Manual download pdf (Page 50)

50

參考單元

G

將有線遙控器連接至電視的遙控連接埠。

G

Configuration

of

frame

G

Repeat

code

G

Lead

code

?

1st

frame

Low

custom

code

Lead

code

High

custom

code

Data

code

Data

code

TC

Tf

T1

C0

Carrier

frequency

FCAR

=

1/TC

=

fOSC/12

Duty

ratio

=

T1/TC

=

1/3

?

Repeat

frame

C1C2C3C4C5C6C7C0C1C2C3C4C5C6C7D0D1D2D3D4D5D6D7D0D1D2D3D4D5D6D7

Repeat

code

9ms

4.5

ms

0.55

ms

9ms

2.25

ms

G

Bit

description

?

Bit

"0"

Tf

Tf

Tf=108ms

@455KHz

0.56

ms

0.56

ms

1.12

ms

?

Bit

"1"

2.24

ms

IR

IR代碼

代碼

如何連接

遙控IR代碼

G

輸出波形

單脈衝，在455KHz

以37.917KHz

訊號調變

G

Frame

interval

:

Tf

傳輸波形就像壓扁的?匙一樣。

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 59 60

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