参数资料
型号: MRF89XA-I/MQ
厂商: Microchip Technology
文件页数: 43/140页
文件大小: 0K
描述: TXRX ISM SUB-GHZ ULP 32QFN
标准包装: 73
系列: *
频率: 863MHz ~ 870MHz,902MHz ~ 928MHz,950MHz ~ 960MHz
数据传输率 - 最大: 200kbps
调制或协议: FSK,OOK
应用: ISM
功率 - 输出: 12.5dBm
灵敏度: -113dBm
电源电压: 2.1 V ~ 3.6 V
电流 - 接收: 3mA
电流 - 传输: 25mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
工作温度: -40°C ~ 85°C
封装/外壳: 32-WFQFN 裸露焊盘
包装: 托盘
MRF89XA
2.16.2
POLYPHASE FILTER
CONFIGURATION REGISTER
DETAILS
REGISTER 2-18:
PFCREG: POLYPHASE FILTER CONFIGURATION REGISTER
(ADDRESS:0x11) (POR:0x38)
R/W-0
R/W-0
R/W-1
R/W-1
r
r
r
r
POLCFV<3:0>
bit 7
bit 0
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
r = Reserved
bit 7-4
POLCFV<3:0>: Polyphase Centre Frequency Value bits
These bits indicate the center frequency of the polyphase filter (typically recommended to 100 kHz).
f o = 200 kHz ? ? ? ? ? ? ? ? ?
f xtal MHz ? 1 + val ( POLCFV )
POLCFV<3:0> = 0011
f o = 100 kHz (default)
----------------------- -----------------------------------------------
12.8 MHz 8
Where,
POLCFV <3:0> is the value in the register
f c is the cut-off frequency
f o is the local oscillator frequency (center frequency)
f xtal is the crystal oscillator frequency
bit 3-0
Reserved<3:0>: Reserved bits; do not use
1000 = Reserved (default)
? 2010–2011 Microchip Technology Inc.
Preliminary
DS70622C-page 43
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