參數(shù)資料
型號(hào): HCS370SL
廠商: Microchip Technology Inc.
英文描述: KEELOQ Code Hopping Encoder
中文描述: 而Keeloq跳碼編碼器
文件頁(yè)數(shù): 15/36頁(yè)
文件大?。?/td> 518K
代理商: HCS370SL
2002 Microchip Technology Inc.
Preliminary
DS41111D-page 15
HCS370
FIGURE 4-3:
VARIABLE PULSE WIDTH MODULATION (VPWM)
FIGURE 4-4:
PULSE POSITION MODULATION (PPM)
In addition to the Modulation Format, Guard Time, and
Baud Rate, the following options are also available to
change the transmission format:
If the START/STOP Pulse Enable (STEN) config-
uration option is enabled, the HCS370 will place a
leading and trailing ‘1’ on each code word. This is
necessary for modulation formats such as
Manchester and PPM to interpret the first and last
data bit.
A wake-up sequence can be transmitted before
the transmission starts. The wake-up sequence is
configured with the Wake-up (WAKE) configura-
tion option and can be disabled or set to 50 ms,
75 ms, or 100 ms of pulses as indicated in
Figure 4-5.
The WAKE option is the same for both Encoder 1
and Encoder 2.
FIGURE 4-5:
WAKE-UP ENABLE
VPWM BIT ENCODING:
T
BP
on Transition Low to High
T
BP
2
X
T
E
LOGIC “0”
T
E
T
BP
LOGIC “1”
T
E
T
E
on Transition High to Low
T
BP
2
X
T
E
T
E
Guard
Time
10xT
E
Header
Encrypted Portion
Fixed Code Portion
31xT
E
50% Preamble
1
2
16
T
E
LOGIC “0”
LOGIC “1”
LOGIC "1"
LOGIC "0"
T
E
T
E
T
E
Guard
Time
Fixed Code Portion
Encrypted Portion
T
BP
3
X
TE
T
BP
31xT
E
50% Preamble
START bit
STOP bit
10xT
E
Header
1
2
16
WAKE-UP = 75 ms
WAKE-UP = 50 ms
WAKE-UP = 100 ms
WAKE-UP
Guard Time = 6.4 ms, 51.2 ms, or 102.4 ms
CODE
CODE
T
E
T
E
T
E
2T
E
T
E
5T
E
T
G
T
G
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HCS370ST 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:KEELOQ Code Hopping Encoder
HCS370T/SL 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-5.5V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
HCS370T/ST 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-5.5V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
HCS370T-I/SL 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-5.5V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
HCS370T-I/ST 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-5.5V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray