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參數(shù)資料
| 型號： | 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)： | 26/43頁 |
| 文件大?。?/td> | 689K |
| 代理商： | TDA5201 |
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Applications
4 - 6
TDA 5201
Wireless Components
Specification, July 2004
4.4 Quartz Frequency Calculation
As described in Section 3.4.3 the operating range of the on-chip VCO is wide
enough to guarantee a receive frequency range between 310 and 350MHz. The
VCO signal is divided by 2 before applied to the mixer . This local oscillator sig-
nal can be used to downconvert the RF signals both with high- or low-side injec-
tion at the mixer. High-side injection of the local oscillator has to be used for
receive frequencies between 310 and 330 MHz. In this case the local oscillator
frequency is calculated by adding the IF frequency (10.7 MHz) to the RF fre-
quency.
Low-side injection has to be used for receive frequencies between 330 and
350 MHz. The local oscillator frequency is calculated by subtracting the IF fre-
quency (10.7 MHz) from the RF frequency then. The overall division ratios in
the PLL are 64 or 32 depending on whether the CSEL-pin is left open or tied to
ground.
Therefore the quartz frequency may be calculated by using the following for-
mula:
with
RF
LO
QU
r
....
receive frequency
....
local oscillator (PLL) frequency (
RF
± 10.7)
quartz oscillator frequency
....
....
ratio of local oscillator (PLL) frequency and quartz
frequency as shown in the subsequent table.
Example:
Addition of 10.7 is used in case of operation the device at 315 MHz, subtraction
in case of operation at 345 MHz for instance. This yields the following frequen-
cies:
CSEL tied to GND:
Table 4-1 PLL Division Ratio Dependence on States of CSEL
CSEL
Ratio r = (f
LO
/f
QU
)
open
64
GND
32
r
f
f
RF
QU
7
10
=
(
)
MHz
MHz
MHz
f
1781
.
10
32
/
7
10
315
QU
=
+
=
(
)
MHz
MHz
MHz
f
4469
.
10
32
/
7
10
345
QU
=
=
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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 |
| 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 |
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