參數(shù)資料
型號(hào)： XR2211ACD-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 2/24頁(yè)
文件大?。?/td> 0K
描述： IC FSK DEMOD/TONE DECOD 14SOIC
標(biāo)準(zhǔn)包裝： 56
功能： FSK 解調(diào)器，音頻解碼器
電源電壓： 4.5 V ~ 20 V
電流 - 電源： 5mA
功率（瓦特）： 900mW
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 14-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 14-SOIC
包裝： 管件
包括： 載波檢測(cè)
其它名稱： 1016-1308-5
XR-2211A
10
Rev. 1.04
APPLICATIONS INFORMATION
FSK Decoding
Figure 10 shows the basic circuit connection for FSK decoding. With reference to Figure 3 and Figure 10, the functions
of external components are defined as follows: R0 and C0 set the PLL center frequency, R1 sets the system bandwidth,
and C1 sets the loop filter time constant and the loop damping factor. CF and RF form a one-pole post-detection filter for
the FSK data output. The resistor RB from pin 7 to pin 8 introduces positive feedback across the FSK comparator to
facilitate rapid transition between output logic states.
Design Instructions:
The circuit of
Figure 10 can be tailored for any FSK decoding application by the choice of five key circuit components: R0,
R1, C0, C1 and CF. For a given set of FSK mark and space frequencies, fO and f1, these parameters can be calculated as
follows:
(All resistance in
W’s, all frequency in Hz and all capacitance in farads, unless otherwise specified)
a) Calculate PLL center frequency, fO:
f
O +
F
1F2
b) Choose value of timing resistor R0, to be in the range of 10KW to 100KW. This choice is arbitrary. The recommended
value is R0 = 20KW. The final value of R0 is normally fine-tuned with the series potentiometer, RX.
R
O + RO )
R
X
2
c)
Calculate value of C0 from design equation (1) or from
Figure 7:
C
O +
1
R
0 f0
d) Calculate R1 to give the desired tracking bandwidth (See design equation 5).
R
1
+
R
0f0
(
f
1–f2)
2
e) Calculate C1 to set loop damping. (See design equation 4):
Normally,
j = 0.5 is recommended.
C
1
+
1250
C
0
R
1
j2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
XR2211ACP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC-FSK DEMODULATOR
XR-2211ACP 制造商:EXAR 制造商全稱:EXAR 功能描述:FSK Demodulator/ Tone Decoder
XR2211ACP-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
XR2211ACP-F 制造商:Exar Corporation 功能描述:IC DEMODULATOR/DECODER FSK 2211
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