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SC6122 데이터시트 PDF




Silan Semiconductors에서 제조한 전자 부품 SC6122은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 SC6122 기능
기능 INFRARED REMOTE CONTROL TRANSMITTER
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SC6122 데이터시트, 핀배열, 회로
SC6122
INFRARED REMOTE CONTROL TRANSMITTER OF NEC CODE FORMAT
DESCRIPTION
The SC6122 is a remote control transmitter utilizing CMOS
Technology specially designed for use on infrared remote control
applications. It is capable of controlling 64 function keys and 3
double keys. SC6122 is housed in a 24-pins SOP package.
FEATURES
* Low power dissipation(quiescent current<1µA)
* Operating frequency is 455Khz, output carrier frequency is
38KHz
* Use PPM(Pulse phase modulation)coding format
* Low Operating Voltage (VDD=2.0~5.5V)
* Using SEL pin, SC6122 can support 128+6 function codes
* Customer Code can be selected
APPLICATIONS
* TV and VCR
* Audio Equipment
* Air Conditioner
* VCD and DVD ROM/Player
* Multi-Media Personal Computer System
SOP-24-375-1.27
ORDERING INFORMATION
SC6122-001
SC6122-002
ROM content=0
Custom version
BLOCK DIAGRAM
23 KI0
24 KI1
1 KI2
2 KI3
KI4
3
KI5
4
5 KI6
6 KI7
11
OSCI
10
OSCO
8
VDD
12
VSS
OSC Circuit
SEL
9
Timing Generation
&Control Circuit
Code Generation Circuit
Key Input/Output Scan Circuit
Output
Control
Circuit
DOUT
7
LMP
13
CCS
22
KI/O0~KI/O7
21 20 19 18 17 16 15 14
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:3.1 2008.04.02
Page 1 of 14




SC6122 pdf, 반도체, 판매, 대치품
SC6122
between the reception detection and other processes can be managed efficiently. The code uses the PPM (Pulse
Position Modulation) Method, with "0" and "1" differentiated by the time between pulses. Each code consists of 8
bits, and simultaneous transmission of the inverse code allows configuration of a system with an extremely low
error rate.
2. KEY INPUT MATRIX
The Key Input Matrix of SC6122 is given below:
KI0 1 5 9 13 17 21 25 29
KI1 2 6 10 14 18 22 26 30
KI2 3 7 11 15 19 23 27 31
KI3 4 8 12 16 20 24 28 32
KI4 33 37 41 45 49 53 57 61
KI5 34 38 42 46 50 54 58 62
KI6 35 39 43 47 51 55 59 63
KI7 36 40 44 48 52 56 60 64
3. Key INPUT
A total of 64 keys can be connected by SC6122 Key Input Pins--KI0~KI7 and the Timing Signal Output Pins
KI/O0~KI/O7.
Double Key Operation is possible for only Key No.21 in combination with other keys connected to the KI/O5
line namely: Key No.22, 23 or 24.thus, only the following key combinations may be used for the double key
operation:
1. Key Nos.21 and 22 ;
2. Key Nos.21 and 23 ;
3. Key Nos.21 and 24
Pull-down resistors are connected between the Key Input and Vss Pins. When more than one key (except the
double key) are pressed simultaneously, the transmission output stops.
Two key inputs are regarded as being pressed simultaneously when the time interval between these two key
entries is less than 36ms.
The order of priority given to two key inputs with a time interval of more than 36ms is on a First-Pressed-First-
Served or Longer-Pressed-First-Served Basis.
When a key is pressed, the custom and data codes are read. 36ms later, the Remote (REM) Output is
activated. When the key is kept depressed during this 36ms, one transmission is output. If the key is depressed
for more than 108ms, then the only the leader code is transmitted continuously.
4. DOUBLE KEY OPERATION
Double Key Operation is useful for operations such as tape deck recording. The following table shows the Key
Data corresponding to the double keys pressed. Also refer to the Key Input Section.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:3.1 2008.04.02
Page 4 of 14

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SC6122 전자부품, 판매, 대치품
6. Custom code setting
SC6122
In the above figure, the custom code of SC6122 is determined through the connection of KI/O and CCS.
Where, S0~S7 are the status of diode between the KI/O0~ KI/O7 and CCS, 1 means connection 0 means no
connection; S8~S15 are the connect status between KI/O0~ KI/O7 and power, 1 means connection 0 means no
connection; the 16-bit custom code is defined as : C0, C1, … … C15. There are two code formats: 001 and 002.
Ø 001 code format
C0~C7 are determined through S0~S7; C8~C15 are got through C0~C7 OR S8~S15, refers to the
following content: C0=S0, C1=S1, C2=S2, C3=S3, C4=S4, C5=S5, C6=S6, C7=S7;
C8=S8 C0, C9=S9 C1, C10=S10 C2, C11=S11 C3, C12=S12 C4, C13=S13 C5,
C14=S14 C6, C15=S15 C7.
Thus, the 16-bit custom code can be set flexibly, and up to 216=65536.
Note: (1) when there is only one KI/O connects with CCS; the diode can be replaced by wire.
(2) The symbol means XNOR;
Ø 002 code format
C0~C2 are determined through KI/O0~KI/O7 connects to CCS, as the following table:
KI/On connect to CCS
C2
C1
C0
KI/O0(S0)
0
0
0
KI/O1(S1)
0
0
1
KI/O2(S2)
0
1
0
KI/O3(S3)
0
1
1
KI/O4(S4)
1
0
0
KI/O5(S5)
1
0
1
KI/O6(S6)
1
1
0
KI/O7(S7)
1
1
1
C7~C3 is set through the pull-up resistor connection or not of KI/O6 and KI/O7, as the following table:
Pull-up resistor
C7~C3 in low 8-bit custom code
KI/O6 KI/O7
C7
C6
C5
C4
C3
No No
0
0
0
0
0
No Yes
1
0
0
1
1
Yes No
1
0
0
0
0
Yes Yes
1
1
1
0
1
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:3.1 2008.04.02
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부품번호상세설명 및 기능제조사
SC6121

INFRARED REMOTE CONTROL TRANSMITTER

Silan
Silan
SC6122

INFRARED REMOTE CONTROL TRANSMITTER

Silan Semiconductors
Silan Semiconductors

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