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CXA3068N 参数 Datasheet PDF下载

CXA3068N图片预览
型号: CXA3068N
PDF下载: 下载PDF文件 查看货源
内容描述: L波段下变频器的卫星调谐器 [L-band Down Converter for Satellite Tuner]
分类和应用: 射频和微波射频上变频器射频下变频器微波上变频器微波下变频器
文件页数/大小: 11 页 / 147 K
品牌: SONY [ SONY CORPORATION ]
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CXA3068N  
Description of Operation (Refer to the Electrical Characteristics Measurement Circuit.)  
1) Oscillator circuit  
The oscillator circuit is formed with two Colpitts oscillators, and oscillation is provided at the differential  
input via an LC resonance circuit including a varicap diode. This is oscillated only by attaching an LC  
resonance circuit externally because feedback capacitance, etc. are built in for oscillation.  
2) Mixer circuit  
This is a double-balance mixer having small leak of local oscillation signal. The RF signal is input to Pins  
5 and 6. In normal use, the signal is input to one pin while the other pin is connected to GND via  
decoupling capacitor.  
3) IF amplifier circuit  
The mixer output signal is amplified by the IF amplifier and output to Pin 1. The IF output is emitter-  
follower output and output impedance is approximately 50 (480 MHz).  
4) PLL oscillation signal output circuit  
The output circuit is built in to drive the PLL for tuning. This is emitter-follower output and output  
impedance is approximately 50 .  
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