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| 型号： | XR2211ACD-F |
| 厂商： | Exar Corporation |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC FSK DEMOD/TONE DECOD 14SOIC |
| 标准包装： | 56 |
| 功能： | FSK 解调器，音频解码器 |
| 电源电压： | 4.5 V ~ 20 V |
| 电流 - 电源： | 5mA |
| 功率（瓦特）： | 900mW |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC |
| 包装： | 管件 |
| 包括： | 载波检测 |
| 其它名称： | 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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| VI-B3T-IY-B1 | CONVERTER MOD DC/DC 6.5V 50W |
| XR2211ACP-F | IC FSK DEMOD/TONE DECOD 14PDIP |
| VE-BVY-IX-F3 | CONVERTER MOD DC/DC 3.3V 49.5W |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR2211ACDTR-F | 功能描述:VCO振荡器 RoHS:否 制造商:Exar 封装 / 箱体:SOIC-14 频率:300 kHz 负载电容: 封装:Reel 电源电压:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作温度:0 C 最大工作温度:+ 70 C |
| XR2211ACP | 制造商:未知厂家 制造商全称:未知厂家 功能描述:IC-FSK DEMODULATOR |
| XR-2211ACP | 制造商:EXAR 制造商全称:EXAR 功能描述:FSK Demodulator/ Tone Decoder |
| XR2211ACP-F | 功能描述:VCO振荡器 4.5V-20V 5mA temp 0C to 70C RoHS:否 制造商:Exar 封装 / 箱体:SOIC-14 频率:300 kHz 负载电容: 封装:Reel 电源电压:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作温度:0 C 最大工作温度:+ 70 C |
| XR2211ACP-F | 制造商:Exar Corporation 功能描述:IC DEMODULATOR/DECODER FSK 2211 |
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