參數(shù)資料
型號(hào)： RFHCS362AG
廠(chǎng)商： Microchip Technology Inc.
英文描述： Code Hopping Encoder with UHF ASK/FSK Transmitter
中文描述： 跳碼編碼器的超高頻ASK / FSK發(fā)射器
文件頁(yè)數(shù)： 16/60頁(yè)
文件大?。?/td> 502K
代理商： RFHCS362AG
rfHCS362G/362F
DS41189A-page 16
Preliminary
2002 Microchip Technology Inc.
3.1.4.4
Cyclic Redundancy Check (CRC)
The CRC bits are calculated on the 65 previously trans-
mitted bits. The decoder can use the CRC bits to check
the data integrity before processing starts. The CRC
can detect all single bit errors and 66% of double bit
errors. The CRC is computed as follows:
EQUATION 3-1:
CRC Calculation
and
with
and Di
n
the nth transmission bit 0
≤
n
≤
64
CRC 1
n
1
+
CRC 0
n
Di
n
⊕
=
CRC 0
n
1
+
CRC 0
n
Di
n
⊕
(
)
CRC 1
[ ]
n
⊕
=
CRC 1 0
]
0
0
=
Warning:
The CRC may be wrong when the battery
voltage is near the selected V
LOW
trip point.
This may happen because V
LOW
is sam-
pled twice each transmission, once for the
CRC calculation and once when V
LOW
is
transmitted. V
DD
tends to move slightly dur-
ing a transmission which could lead to a dif-
ferent value for V
LOW
being used for the
CRC calculation and the transmission.
Work around:
If the CRC is incorrect,
recalculate for the opposite value of V
LOW
.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RFHCS362F 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Code Hopping Encoder with UHF ASK/FSK Transmitter
RFHCS362F-I/SS 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Code Hopping Encoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線(xiàn)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
RFHCS362FT-I/SS 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Code Hopping Encoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線(xiàn)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
RFHCS362G 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Code Hopping Encoder with UHF ASK/FSK Transmitter
RFHCS362G/362F 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:MCP23016 Datasheet
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