- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383989 > TDA5211 (INFINEON TECHNOLOGIES AG) ZENER,SML4744,15V,5%,1W PDF資料下載
參數(shù)資料
| 型號： | TDA5211 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | ZENER,SML4744,15V,5%,1W |
| 中文描述： | 詢價/ FSK信號單一轉(zhuǎn)換接收器 |
| 文件頁數(shù)： | 26/52頁 |
| 文件大小： | 1469K |
| 代理商： | TDA5211 |
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頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當前第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頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁
Applications
4 - 6
TDA 5211
Wireless Components
Specification, May 2001
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. In this case the higher frequency of a FSK-modulated signal is
demodulated as a logical one (high).
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. Please note that in this case
sign-inversion occurs and the higher frequency of a FSK-modulated signal is
demodulated as a logical zero (low). 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:
QU
= (
RF
±
10.7) / r
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
This yields the following examples:
CSEL tied to GND:
CSEL open:
Table 4-1 PLL Division Ratio Dependence on States of CSEL
CSEL
Ratio r = (f
LO
/f
QU
)
open
64
GND
32
(
(
)
)
MHz
MHz
MHz
f
1781
.
10
32
/
7
10
315
QU
=
+
=
MHz
MHz
MHz
f
4469
.
10
32
/
7
10
345
QU
=
=
(
(
)
)
MHz
MHz
MHz
f
0891
.
64
/
7
10
315
QU
=
+
=
MHz
MHz
MHz
f
2234
.
64
/
7
10
345
QU
=
=
相關PDF資料 |
PDF描述 |
|---|---|
| TDA5212 | ASK/FSK 915MHz Single Conversion Receiver |
| TDA5220 | ASK/FSK Single Conversion Receiver |
| TDA5221 | ASK/FSK Single Conversion Receiver |
| TDA5250 | ASK/FSK 868MHz Wireless Transceiver |
| TDA5250D2 | ASK/FSK 868MHz Wireless Transceiver |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA5211T | 制造商:Infineon Technologies AG 功能描述:315MHZ ASK/FSK SUPHET RCVR TSS |
| TDA5211XT | 制造商:Infineon Technologies AG 功能描述:RF Receiver ASK/FSK 5V 28-Pin TSSOP T/R |
| TDA5211XUMA1 | 制造商:Infineon Technologies AG 功能描述:RF Receiver ASK/FSK 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:IC FSK/ASK RECEIVER P-TSSOP-28 制造商:Infineon Technologies AG 功能描述:IC LP FSK/ASK SHR P-TSSOP-28 |
| TDA5212 | 功能描述:射頻接收器 CNTRL RF RECEIVER 928MHZ 5V 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 |
| TDA5212_06 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK/FSK 915MHz Single Conversion Receiver |
發(fā)布緊急采購，3分鐘左右您將得到回復。