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參數資料
| 型號： | TDA5200 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | surface mount silicon Zener diodes |
| 中文描述： | 表面貼裝硅穩(wěn)壓二極管 |
| 文件頁數： | 19/43頁 |
| 文件大?。?/td> | 911K |
| 代理商： | TDA5200 |
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Functional Description
3 - 11
TDA 5200
Wireless Components
Specification, March 2000
sion ratio of the divider chain can be selected to be either 128 or 64, depending
on the frequency of the reference oscillator quartz (see below). 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 13MHz 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.
3.4.5
Limiter
The Limiter is an AC coupled multistage amplifier with a cumulative gain of
approximately 80dB that has a bandpass-characteristic centred around
10.7MHz. It has an input impedance of 330
=
to allow for easy interfacing to a
10.7MHz ceramic IF filter. The limiter circuit acts as a Receive Signal Strength
Indicator (RSSI) generator which produces a DC voltage that is directly propor-
tional to the input signal level as can be seen in Figure 4-2. This signal is used
to demodulate the ASK receive signal in the subsequent baseband circuitry and
to turn down the LNA gain by approximately 17dB in case the input signal
strength is too strong as described in Section 3.4.1 and Section 4.1.
3.4.6
Data Filter
The data filter comprises an OP-Amp with a bandwidth of 100kHz used as a
voltage follower and two 100k
=
on-chip resistors. Along with two external
capacitors a 2nd order Sallen-Key low pass filter is formed. The selection of the
capacitor values is described in Section 4.2.
Table 3-2 FSEL pin operating states
FSEL
RF Frequency
Open
433 - 435 MHz
Shorted to ground
868 - 870 MHz
Table 3-3 CSEL pin operating states
CSEL
Crystal Frequency
Open
6.xx MHz
Shorted to ground
13.xx MHz
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TDA5200_10 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK Single Conversion Receiver |
| TDA5200T | 制造商:Infineon Technologies AG 功能描述:RF Receiver ASK 5V 28-Pin TSSOP T/R |
| TDA5200XUMA1 | 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:CONTROL - Tape and Reel 制造商:Infineon Technologies AG 功能描述:CONTROL - Cut TR (SOS) 制造商:Infineon Technologies 功能描述:Infineon Technologies TDA5200XUMA1 RF Transceivers 制造商:Infineon Technologies AG 功能描述:IC LP SGL CONV ASK P-TSSOP-28 |
| TDA5201 | 功能描述:射頻接收器 5V 4.6mA ASK 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 |
| TDA5201_10 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK Single Conversion Receiver |
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