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參數(shù)資料
| 型號(hào)： | XR-2211 |
| 廠商： | Exar Corporation |
| 英文描述： | FSK Demodulator/ Tone Decoder |
| 中文描述： | FSK解調(diào)器/音頻解碼器 |
| 文件頁數(shù)： | 11/24頁 |
| 文件大?。?/td> | 242K |
| 代理商： | XR-2211 |
XR-2211
11
Rev. 3.01
f)
The input to the XR-2211 may sometimes be too sensitive to noise conditions on the input line. Figure 4illustrates
a method of de-sensitizing the XR-2211 from such noisy line conditions by the use of a resistor, Rx, connected
from pin 2 to ground. The value of Rx is chosen by the equation and the desired minimum signal threshold level.
V
IN
minimum (peak)
V
a
–V
b
V
2.8mV offset
V
REF
20,000
(20,000
R
X
)or R
X
20,000
V
REF
V
IN
minimum (peak) input voltage must exceed this value to be detected (equivalent to adjusting V threshold)
V
CC
Rx
Input
2
20K
Va
20K
To Phase
Detector
Vb
V
REF
Figure 4. Desensitizing Input Stage
g)
Calculate Data Filter Capacitance, C
F
:
R
sum
(R
F
(R
1
R
1
)·R
B
R
F
R
B
)
C
F
0.25
(R
sum
·Baud Rate)
Baud rate in
1
seconds
Note:
All values except R
0
can be rounded to nearest standard value.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR2211M | |
| XR2211N | |
| XR2211CP | |
| XR2211D | FSK Demodulator/Tone Decoder(242.76 k ) |
| XR2228 | Monolithic Multiplier/Detector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR-2211A | 制造商:EXAR 制造商全稱:EXAR 功能描述:FSK Demodulator/ Tone Decoder |
| XR2211ACD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC |
| XR-2211ACD | 制造商:Exar Corporation 功能描述: |
| XR2211ACD-F | 功能描述:VCO振蕩器 4.5V-20V 5mA temp 0C to 70C RoHS:否 制造商:Exar 封裝 / 箱體:SOIC-14 頻率:300 kHz 負(fù)載電容: 封裝:Reel 電源電壓:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作溫度:0 C 最大工作溫度:+ 70 C |
| XR2211ACDTR-F | 功能描述:VCO振蕩器 RoHS:否 制造商:Exar 封裝 / 箱體:SOIC-14 頻率:300 kHz 負(fù)載電容: 封裝:Reel 電源電壓:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作溫度:0 C 最大工作溫度:+ 70 C |
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