參數(shù)資料
型號: AMIS-53000
英文描述: Frequency Agile Transceiver
中文描述: 捷變頻收發(fā)器
文件頁數(shù): 19/99頁
文件大小: 2638K
代理商: AMIS-53000
AMIS-53000
Frequency Agile Transceiver
Data Sheet
5.2.1. Receiver Low Noise Amplifier (LNA)
The receiver input of the AMIS-53000 is a single ended input and single ended output device. The input is matched to 50
using an
external matching network, which provides a DC path to ground for biasing the receiver’s LNA. The output of the LNA is tuned to the
desired operating frequency using an external inductor and on-chip capacitor. The inductor is also provides the LNA with DC supply
voltage. On-chip tuning capacitors are binary weighted and digitally controlled.
The internal input capacitance is 1.2pF to 4pF. With this capacitance set to the mid value (register set to 0X80), the impedance of the
receiver is shown in Figure 8. The internal output capacitance is 0.32pF to 0.912pF.
Figure 8: RX Input Impedance
19
AMI Semiconductor
– Aug. 05, Rev. 1.0
www.amis.com
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