- 您现在的位置：买卖IC网 > Sheet目录536 > XE1203SKC868XE2 (Semtech)KIT STARTER FOR XE1203 868MHZ
XE1203F
used to sample the DATA signal without additional external signal processing. In addition, the receiver includes a
digital Received Signal Strength Indicator (RSSI), a Frequency Error Indicator (FEI) that provides information about
the local oscillator frequency error, and a pattern recognition function to detect preprogrammed sequences in the
received serial data stream. Finally, a user-selectable Barker coding/decoding feature can be activated to spread
the outgoing data with an 11-bit Barker code upon transmission and decode the incoming data upon reception by
correlating the spread data with the 11-bit Barker code.
4.1.1
LNA & Receiver modes
The LNA of the receiver has two programmable operation modes: the high sensitivity mode, Mode A, for reception
of weak signals; and the high linearity mode, Modxe B, for strong signals. The operation mode is defined by the
contents of the SWParam_Rmode1 and SWParam_Rmode2 Configuration Register bits.
?
?
4.1.2
Mode A : High sensitivity mode, approximately 13dB better than in Mode B (see 3.2.2, RFS parameter)
Mode B : High Linearity mode, IIP3 approximately 15dB higher than in Mode A (see 3.2.2, IIP3 parameter)
Demodulation chain
The demodulation chain consists of an FSK demodulator, bit synchronizer, Barker decoder and a Pattern
Recognition block. Figure 2 below illustrates the interaction between each section of the demodulation chain.
RTParam_Barker
pow
BARKER
DECODER
data
dclk
FSK
DEMODULATOR
data
RTParam_Bitsync
pow
BIT
SYNCHRONIZER
data
DATA
CONTROL
data
dclk
FSParam_BR
dclk
RTParam_Pattern
pow
PATTERN
RECOGNIZER
pattern
ADParam_Pattern
ADParam_Psize
ADParam_Ptol
Figure 2: Demodulation architecture
4.1.3 Demodulator
The demodulator provides a demodulated data stream from the received FSK modulated base band limited
signals, I_lim and Q_lim. If the end-user application requires direct access to the output of the demodulator, then
the RTParam_Bitsync and RTParam_Barker Configuration Register bits are set low (disabled). In this case the
? Semtech 2008
8
www.semtech.com
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
XE1205SKC868XE1
KIT STARTER FOR XE1205 868MHZ
XE1283I076TRLF
IC TXRX UHF LOW POWER 72-LFBGA
XE135B
LAMP GAS T3.25 XENON 13.5V .375A
XE193
LAMP GAS T-3.25 XENON 14V .33A
XE2405
LAMP GAS FILLED BI-PIN 24V 5W
XE2410
LAMP GAS FILLED BI-PIN 24V 10W
XEB09-BIS
MODEM ETHERNT BRDGE MPT OUTDOOR
XK-Z11-S
ZIGBEE MODULE DEVELOPMENT KIT
相关代理商/技术参数
XE1203SKC915XE2
功能描述:KIT STARTER FOR XE1203 915MHZ RoHS:否 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:TrueRF™ 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796
XE1205
制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:180 MHz - 1GHz Low-Power, High Link Budget Integrated UHF Transceiver
XE1205I074TRLF
功能描述:IC TXRX 433/915MHZ 48-VQFN RoHS:是 类别:RF/IF 和 RFID >> RF 收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:30 系列:- 频率:4.9GHz ~ 5.9GHz 数据传输率 - 最大:54Mbps 调制或协议:* 应用:* 功率 - 输出:-3dBm 灵敏度:- 电源电压:2.7 V ~ 3.6 V 电流 - 接收:* 电流 - 传输:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 工作温度:-25°C ~ 85°C 封装/外壳:68-TQFN 裸露焊盘 包装:管件
XE1205SKC433XE1
功能描述:KIT STARTER FOR XE1205 433MHZ RoHS:否 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:TrueRF™ 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796
XE1205SKC868XE1
功能描述:KIT STARTER FOR XE1205 868MHZ RoHS:否 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:TrueRF™ 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796
XE1205SKC915XE1
功能描述:KIT STARTER FOR XE1205 915MHZ RoHS:否 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:TrueRF™ 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796
XE1209
制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low Power CMOS Transceiver
XE1209C012TRLF
制造商:Semtech Corporation 功能描述: