- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383989 > TDA5201 (INFINEON TECHNOLOGIES AG) ASK Single Conversion Receiver PDF資料下載
參數(shù)資料
| 型號(hào)： | TDA5201 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | ASK Single Conversion Receiver |
| 中文描述： | 調(diào)幅單一轉(zhuǎn)換接收器 |
| 文件頁數(shù)： | 18/43頁 |
| 文件大小： | 689K |
| 代理商： | TDA5201 |
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頁第15頁第16頁第17頁當(dāng)前第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
Functional Description
3 - 10
TDA 5201
Wireless Components
Specification, July 2004
3.4
Functional Blocks
3.4.1
Low Noise Amplifier (LNA)
The LNA is an on-chip cascode amplifier with a voltage gain of 15 to 20dB. The
gain figure is determined by the external matching networks situated ahead of
LNA and between the LNA output
LNO
(Pin 6) and the Mixer Inputs
MI
and
MIX
(Pins 8 and 9). The noise figure of the LNA is approximately 2dB, the current
consumption is 500μA. The gain can be reduced by approximately 18dB. The
switching point of this AGC action can be determined externally by applying a
threshold voltage at the
THRES
pin (Pin 23). This voltage is compared internally
with the received signal (RSSI) level generated by the limiter circuitry. In case
that the RSSI level is higher than the threshold voltage the LNA gain is reduced
and vice versa. The threshold voltage can be generated by attaching a voltage
divider between the
3VOUT
pin (Pin 24) which provides a temperature stable
3V output generated from the internal bandgap voltage and the
THRES
pin as
described in Section 4.1. The time constant of the AGC action can be deter-
mined by connecting a capacitor to the
TAGC
pin (Pin 4) and should be chosen
along with the appropriate threshold voltage according to the intended operat-
ing case and interference scenario to be expected during operation. The opti-
mum choice of AGC time constant and the threshold voltage is described in
Section 4.1.
3.4.2
Mixer
The Double Balanced Mixer downconverts the input frequency (RF) in the
range of 310-350MHz to the intermediate frequency (IF) at 10.7MHz with a vol-
tage gain of approximately 21dB by utilising either high- or low-side injection of
the local oscillator signal. In case the mixer is interfaced only single-ended, the
unused mixer input has to be tied to ground via a capacitor. The mixer is fol-
lowed by a low pass filter with a corner frequency of 20MHz in order to suppress
RF signals to appear at the IF output (
IFO
pin). The IF output is internally con-
sisting of an emitter follower that has a source impedance of approximately
330
to facilitate interfacing the pin directly to a standard 10.7MHz ceramic filter
without additional matching circuitry.
3.4.3
PLL Synthesizer
The Phase Locked Loop synthesizer consists of a VCO, an asynchronous
divider chain, a phase detector with charge pump and a loop filter and is fully
implemented on-chip. The VCO is including spiral inductors and varactor
diodes. The
FSEL
pin (Pin11) has to be left open. The tuning range of the VCO
was designed to guarantee over production spread and the specified tempera-
ture range a receive frequency range between 310 and 350MHz depending on
whether high- or low-side injection of the local oscillator is used. The oscillator
signal is fed both to the synthesiser divider chain and to a divider that is dividing
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA5204 | ASK Single Conversion Receiver 390MHz |
| TDA5204E1 | ASK Single Conversion Receiver 390MHz |
| TDA5210 | ASK/FSK Single Conversion Receiver |
| TDA5211 | ZENER,SML4744,15V,5%,1W |
| TDA5212 | ASK/FSK 915MHz Single Conversion Receiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA5201_10 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK Single Conversion Receiver |
| TDA5201GEG | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TDA5201NT | 制造商:Infineon Technologies AG 功能描述:RF Receiver ASK 5V 28-Pin TSSOP |
| TDA5201T | 功能描述:RCVR SGL CONV 310-350MHZ 28TSSOP 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 |
| TDA5201XUMA1 | 制造商:Infineon Technologies AG 功能描述:RF Receiver ASK 5V T/R 制造商:Infineon Technologies AG 功能描述:RF Receiver ASK 5V 28-Pin TSSOP T/R 制造商:Infineon Technologies AG 功能描述:CONTROL - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC LP SGL CONV ASK P-TSSOP-28 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。