參數(shù)資料
型號(hào)： TH71101
廠商： Electronic Theatre Controls, Inc.
英文描述： FSK/FM/ASK Receiver
中文描述： FSK信號(hào)/調(diào)頻/ ASK接收機(jī)
文件頁(yè)數(shù)： 2/20頁(yè)
文件大小： 656K
代理商： TH71101
TH71101
315/433MHz
FSK/FM/ASK Receiver
TH71101 Data Sheet
3901071101
Page 2 of 20
Nov. 2001
Rev. 005
General Desc ription
The TH71101 receiver IC consists of the following building blocks
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PLL synthesizer (PLL SYNTH) for generation of the local oscillator signal LO
Parts of the PLL SYNTH are the high-frequency VCO1, the feedback divider DIV_16,
a phase-frequency detector (PFD) with charge pump (CP) and a crystal-based reference oscillator (RO)
Low-noise amplifier (LNA) for high-sensitivity RF signal reception
First mixer (MIX1) for down-conversion of the RF signal to the IF
IF pre amplifier which is a mixer cell (MIX2) that operates as an amplifier
IF amplifier (IFA) to amplify and limit the IF signal and for RSSI generation
Phase coincidence demodulator (DEMOD) with third mixer (MIX3) to demodulate the IF signal
Operational amplifier (OA) for data slicing, filtering and ASK detection
Bias circuitry for bandgap biasing and circuit shutdown
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With the TH71101 receiver chip, various circuit configurations can be arranged in order to meet a number of
different customer requirements. For FM/FSK reception the IF tank used in the phase coincidence demodu-
lator can be constituted either by a ceramic resonator or an LC tank (optionally with a varactor diode to create
an AFC circuit). In ASK configuration, the RSSI signal is feed to an ASK detector, which is constituted by the
operational amplifier.
Demodulation
Type of receiver
FM / FSK
FM / FSK
ASK
narrow-band RX with ceramic demodulation tank
wide-band RX with LC demodulation tank
RX with RSSI-based demodulation
A double-conversion variant, called TH71102, is also available. This receiver IC allows a higher degree of
image rejection, achieved in conjunction with an RF frontend filter. Both RXICs have the same die. At the
TH71102, the second mixer (MIX2) is used to down-convert the first IF (IF1) to the second IF (IF2). At the
TH71101, MIX2 operates as an amplifier.
Efficient RF frontend filtering is realized by using a SAW, ceramic or helix filter in front of the LNA and by
adding an LC filter at the LNA output.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TH71101.3ENE-TR 制造商:Melexis Semiconductors 功能描述:TH71101 Series 260 kbps 8.2 mA SMT 315/433 MHz FSK/ASK Receiver - LQFP-32
TH71101ENE 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:315/433MHz FSK/FM/ASK Receiver
TH71101ENE-CAA-000-RE 制造商:Melexis Semiconductors 功能描述:IC RECEIVER FSK/FM/ASK 32LQFP 制造商:Melexis Semiconductors 功能描述:TH71101 Series 260 kbps 8.2 mA SMT 315/433 MHz FSK/ASK Receiver - LQFP-32
TH71101ENE-CAA-000-TR 功能描述:IC RECEIVER 315/433MHZ 32-LQFP RoHS:否 類別:RF/IF 和 RFID >> RF 接收器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 09/Jan/2012 標(biāo)準(zhǔn)包裝:50 系列:* 頻率:850MHz ~ 2.175GHz 靈敏度:- 數(shù)據(jù)傳輸率 - 最大:- 調(diào)制或協(xié)議:- 應(yīng)用:* 電流 - 接收:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 特點(diǎn):- 電源電壓:4.75 V ~ 5.25 V 工作溫度:0°C ~ 85°C 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤
TH71102 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:315/433MHz FSK/FM/ASK Receiver
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