SC50560S 데이터 시트보기 (PDF) - Silan Microelectronics

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SC50560S

INFRARED REMOTE CONTROL TRANSMITTER

Silan Microelectronics 

Silan

Semiconductors

SC50560

5. Oscillation Circuit

The oscillation circuit may be constructed by connected a

ceramic resonator between the OSCI and OSCO. Please

refer to the diagram right. When the references signal is set

to 455KHz the carrier can be set at 38KHz. When no key

input is pressed, the oscillation circuit is normally stopped,

thereby, lower power dissipation.

SC50560

OSCI OSCO

45

Figure 6. Oscillation Circuit

6. CODE FORMAT MODES

SC50560 code format comes in three modes: 001, 002 and 003. Please refer to the diagram below:

SC50560 Version

Description

Minimum Number of Words

Transmitted

Mode A Code Format:

SC50560-001

Custom Code Bit 5--C5=0,

1 word

SEL is connected to VDD

SC50560-002

Mode A & B Code Formats

3 words

Mode A Code Format:

SC50560-003

Custom Code Bit 5--C5=1,

-----

When SEL is connected to Vss

Both SC50560-001 and SC50560-002 make use of the same operation when the input from terminal CS and

the scan output (KO0 to KO4) are connected to make the custom code selection with the exception of the number

of word transmitted. Please refer to the table above:

MODE A

The diagram below gives us the transmission code format for Mode A. One Code Word consists of the Leader

Code, 8 bits Custom Code followed by a sync. bit, Separator and 8 bits Data Code followed by another sync. bit.

Please refer to the diagram below.

Leader Pulse

C0 C1 C2 C3 C4 C5 C6 C7 SYNC

D0 D1 D2 D3 D4 D5 D6 D7 SYNC

8 Bits Custom Code

Seperator

Sync. Bit

Figure 7. Mode A Code Format

8 Bits Data Code

Sync. Bit

Each Code Bit may either be “0” or “1”. Please refer to the diagram below.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.3 2002-03-21

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