SC50560-002 SILAN [Silan Microelectronics Joint-stock], SC50560-002 Datasheet - Page 5

• Manufacturer Part Number: SC50560-002
• Description: INFRARED REMOTE CONTROL TRANSMITTER
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

3. CARRIER
the leader code, there are twenty 38KHz clock in one pulse width. Please refer to the diagram below.
4. KEY INPUT
a 4x8 key matrix may be formed. Likewise, a maximum of 256 instructions may be provided by connecting the input
CS with the scan output –KO0 to KO7 (also known as the Extended Keys). When two or more standard keys are
pressed, the transmission output Dout is kept at LOW and no transmission code is outputted. Please refer to the
tables below.
Scan Output
By connecting the input pins – KI0 to KI3 and scan output pins –KO0 to KO7 (also known as the Standard Keys),
The carrier of the transmission signal is 38KHz and one pulse width is 0.52ms. Therefor, with the exception of
Key Input
Data
Data
KO0
KO1
KO2
KO3
KO4
KO5
KO6
KO7
KI0
KI1
KI2
KI3
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Silan
Semiconductors
8.7µs
D2
D0
0
1
0
1
0
1
0
1
26.3µs
0
1
0
1
Figure 5. Transmission Signal Carrier Diagram
D3
D1
0
0
1
1
0
0
1
1
0
0
1
1
D4
0
0
0
0
1
1
1
1
0.52ms
5
CS Input
Data
KO5
KO6
KO7
D5
--
--
1
SC50560
D6
--
--
Rev: 2.3
1
2002-03-21
D7
--
--
1