參數(shù)資料
型號： HCS370P
廠商： Microchip Technology Inc.
英文描述： KEELOQ Code Hopping Encoder
中文描述： 而Keeloq跳碼編碼器
文件頁數(shù)： 14/36頁
文件大?。?/td> 518K
代理商： HCS370P
HCS370
DS41111D-page 14
Preliminary
2002 Microchip Technology Inc.
4.0
TRANSMITTED WORD
4.1
Transmission Modulation Format
The HCS370 transmission is made up of several code
words. Each code word contains a preamble, header,
and data. A code word is separated from another code
word by guard time. The Guard Time Select (GSEL)
configuration option can be set to 0 ms, 6.4 ms, 51.2
ms, or 102.4 ms.
All other timing specifications for the modulation for-
mats are based on a basic timing element (T
E
). This
Timing Element can be set to 100
μ
s, 200
μ
s, 400
μ
s or
800
μ
s with the Baud Rate Select (BSEL) configuration
option. The Header time can be set to 4T
E
or 10T
E
with
the Header Select (HSEL) configuration option. These
options can all be set individually for Encoder 1 and
Encoder 2.
There are four different modulation formats available,
the Modulation Select (MSEL) Configuration Option is
used to select between:
Pulse Width Modulation (PWM)
Manchester (MAN)
Variable Pulse Width Modulation (VPWM)
Pulse Position Modulation (PPM)
FIGURE 4-1:
PULSE WIDTH MODULATION (PWM)
FIGURE 4-2:
MANCHESTER (MAN)
LOGIC "1"
Guard
Time
Encrypted Portion
Fixed Code Portion
LOGIC "0"
4-10
xT
E
Header
T
E
T
E
T
E
1
16
T
BP
31xT
E
50% Preamble
Guard
Time
Header
Encrypted Portion
Fixed Code Portion
START bit
STOP bit
bit 0 bit 1 bit 2
LOGIC "0"
LOGIC "1"
T
E
T
E
T
BP
31xT
E
50% Preamble
1
2
16
4xT
E
相關PDF資料
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HCS370SL KEELOQ Code Hopping Encoder
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HCS370TIST KEELOQ Code Hopping Encoder
相關代理商/技術(shù)參數(shù)
參數(shù)描述
HCS370SL 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ Code Hopping Encoder
HCS370ST 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ Code Hopping Encoder
HCS370T/SL 功能描述:編碼器、解碼器、復用器和解復用器 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、復用器和解復用器 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、復用器和解復用器 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
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