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參數(shù)資料
| 型號： | SC5272S-L2 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | REMOTE CONTROL DECODER |
| 中文描述： | 遙控解碼器 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 180K |
| 代理商： | SC5272S-L2 |
Silan
Semiconductors
SC5272
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
4
PIN DESCRIPTION
Pin No.
18 PIN
20 PIN
Pin Name
I/O
Description
1~6
1~6
A0~A5
I
Code Address pins No. 0~5. These six tri-state pins are
detected by SC5272 to determine the encoded waveform bit
0 ~bit 5. Each pin can be set to “0”,”1”,”f”(floating).
Code Address pins No.6~11/data pins No.5~0. These six
pins are used higher address input bits or data output pins
depending on the versions of SC5272 used.When these
pins are used as address pins, they are tri-state input pins
and can be set to “0”,”1”,”f”.When they are used as output
pins, they are driven to Vcc if (1) the address decoded from
the waveform that was received matches the address setting
at address input pins, and (2) the corresponding data bits
received is a “1” bits. Otherwise, they are driven to Vss.
Data Input Pin. The encode waveform received is serially fed
to SC5272 at this pin.
Oscillator pin 1
A resistor connected between
these two pins determine the
fundamental frequency of SC5272.
Valid Transmission. Active high signal. VT in high state
signifies that SC5272 receives valid transmission waveform.
Positive Power Supply
Negative Power Supply
No Connection
7~8
10~13
7~8
12~15
A6/D5~A11/D0
I/O
14
16
DIN
I
15
17
OSC1
I
16
18
OSC2
O
Oscillator pin 2
17
19
VT
O
18
9
--
20
9
Vcc
Vss
NC
--
--
--
10~11
FUNCTIONAL DESCRIPTION
The SC5272 decodes the waveform received and fed into the Din pin. The waveform is decoded into code word
that contains the address, data and Sync bits. The decoded address bits are compared with the address set at the
address input pins. If both addresses match for 2 consecutive code words, SC5272 drives:
a). The data output pins whose corresponding data bits is then decoded to be a "1" bit
b). The VT output --to high voltage (high state).
1. RF OPERATION
Code Bits
A code bit is the basic component of the encoded waveform, and can be classified as either an AD(Address/Data)
Bit or a SYNC(Synchronous) Bit.
An AD bit can be designated as bit “ 0 ”, “ 1 ” or “ f ” if it is in low, high or floating state respectively. One bit
waveform consists of two pulse cycles. Each pulse cycle has 16 oscillating time periods. For further details, please
refer to the diagram below:
a
4a
12a
12a
4a
32a
OSC
bit "0"
bit "1"
bit "f"
Where: a = oscillating clock period .
Bit “ f ” is only available for address bits.
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| SC5272S-L3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROL DECODER |
| SC5272S-L4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROL DECODER |
| SC5272S-L5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROL DECODER |
| SC5272S-L6 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROL DECODER |
| SC5272S-M0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROL DECODER |
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