參數(shù)資料
型號(hào)： HCS473
廠商： Microchip Technology Inc.
英文描述： Code Hopping Encoder and Transponder
中文描述： 跳碼編碼器和轉(zhuǎn)發(fā)器
文件頁(yè)數(shù)： 15/68頁(yè)
文件大?。?/td> 1629K
代理商： HCS473
2002 Microchip Technology Inc.
Preliminary
DS40035C-page 13
HCS473
3.1.3
CODE HOPPING MODULATION
FORMAT
The data modulation format is selectable between
Pulse Width Modulation (PWM) and Manchester using
the modulation select (MSEL) configuration option.
Regardless of the modulation format, each code word
contains a leading preamble and a synchronization
header to wake the receiver and provide synchroniza-
tion events for the receive routine. Each code word also
contains a trailing guard time to separate code words.
Manchester encoding further includes a leading data ‘1’
START pulse and closing 1 RFT
E
STOP pulse around
each data block.
The same code word repeats as long as the same input
pins remain active, until a timeout occurs or a delayed
seed transmission is activated.
The modulated data timing is typically referred to in
multiples of a basic Timing Element (RFT
E
). ‘RF’ T
E
because the DATA pin output is typically sent through a
RF transmitter to the decoder or transponder reader.
RFT
E
may be selected using the RF Transmission
Baud
Rate
(RFBSL)
(Section 3.1.4.13).
configuration
option
FIGURE 3-3:
PWM TRANSMISSION FORMAT (MSEL = 0)
FIGURE 3-4:
MANCHESTER TRANSMISSION FORMAT (MSEL = 1)
TOTAL TRANSMISSION
:
Preamble Sync
Encrypt
Fixed
Guard
1 CODE WORD
Preamble Sync
Encrypt
LOGIC "1"
Guard
Time
Preamble
Encrypted
Portion
Fixed Code
Portion
LOGIC "0"
Header
T
E
T
E
T
E
CODE WORD
TOTAL TRANSMISSION:
CODE WORD
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
Preamble
Preamble Sync
Encrypt
Fixed
Guard
1 CODE WORD
Preamble Sync
Encrypt
相關(guān)PDF資料
PDF描述
HCS473-PQTP Code Hopping Encoder and Transponder
HCS473-PROM Code Hopping Encoder and Transponder
HCS473-PSQTP IC EEPROM SRL 512X16BIT 8DIP
HCS473-SLQTP Code Hopping Encoder and Transponder
HCS473-SLROM Code Hopping Encoder and Transponder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HCS473/P 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 w/ Passive Entry 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
HCS473/SL 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 w/ Passive Entry 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
HCS473_13 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ?? 3-Axis Transcoder
HCS473-I/P 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 w/ Passive Entry 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
HCS473-I/SL 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 w/ Passive Entry 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*