- 您現在的位置：買賣IC網 > PDF目錄371783 > HCS473-SLQTP (Microchip Technology Inc.) Code Hopping Encoder and Transponder PDF資料下載
參數資料
| 型號： | HCS473-SLQTP |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Code Hopping Encoder and Transponder |
| 中文描述： | 跳碼編碼器和轉發(fā)器 |
| 文件頁數： | 15/68頁 |
| 文件大小： | 1629K |
| 代理商： | HCS473-SLQTP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
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PDF資料 |
PDF描述 |
|---|---|
| HCS473-SLROM | Code Hopping Encoder and Transponder |
| HCS473-SLSQTP | Code Hopping Encoder and Transponder |
| HCS473IPQTP | Code Hopping Encoder and Transponder |
| HCS473IPROM | Code Hopping Encoder and Transponder |
| HCS473IPSQTP | Code Hopping Encoder and Transponder |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HCS473SLROM | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473-SLROM | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473SLSQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473-SLSQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473T/SL | 功能描述:編碼器、解碼器、復用器和解復用器 w/ Passive Entry RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。