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參數(shù)資料
| 型號： | TDA5204 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | ASK Single Conversion Receiver 390MHz |
| 中文描述： | 調(diào)幅單一轉(zhuǎn)換接收390MHz |
| 文件頁數(shù)： | 17/40頁 |
| 文件大?。?/td> | 1241K |
| 代理商： | TDA5204 |
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Functional Description
3 - 9
TDA 5204 E1
preliminary
Wireless Components
Specification, December 2000
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) 390MHz to
the intermediate frequency (IF) at 10.7MHz with a voltage gain of approximately
21dB. A low pass filter with a corner frequency of 20MHz is built on chip in order
to suppress RF signals to appear at the IF output (
IFO
pin). The IF output is
internally consisting 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 synthesiser 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. It
’
s nominal centre frequency is 800MHz. The
FSEL
pin (Pin 11) has to
be left open. No additional components are necessary. The oscillator signal is
fed both to the synthesiser divider chain and to the downconverting mixer. The
VCO signal is divided by two before it is fed to the mixer. The loop filter is also
realised fully on-chip.
3.4.4
Crystal Oscillator
The on-chip crystal oscillator circuitry allows for utilisation of quartzes both in
the 6 and 12MHz range as the overall division ratio of the PLL can be switched
between 64 and 128 via the
CSEL
(Pin 16 ) pin according to the following table.
The calculation of the value of the necessary quartz load capacitance is shown
in Section 4.3, the quartz frequency calculation is expained in Section 4.4.
Table 3-2 CSEL Pin Operating States
CSEL
Crystal Frequency
Open
6.xx MHz
Shorted to ground
12.xx MHz
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| 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 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA5204E1 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK Single Conversion Receiver 390MHz |
| TDA5204T | 制造商:Infineon Technologies AG 功能描述:390MHZ ASK SUPERHET TCVR TSSOP |
| TDA5204XT | 功能描述:IC ASK RECEIVER 390MHZ P-TSSOP28 RoHS:是 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 存儲容量:- 天線連接器:PCB，表面貼裝 特點:- 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 |
| TDA5210 | 功能描述:射頻接收器 5V 50nA ASK/FSK Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| TDA5210NT | 制造商:Infineon Technologies AG 功能描述:RF Receiver ASK/FSK 5V 28-Pin TSSOP T/R |
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