Frequency Synthersizer Circuit Design and Programming Application of PLL LMX2336
Zhao Li · Audio Engineering · 2013
The PLL frequency synthesizer circuit is an integral part of the wireless signal transceiver equipment.At first,the internal structure of the low-power dual-channel frequency synthesizer LMX2336 which is produced by the National Semiconductor corporation is introduced,on the base of studying the characteristics of its structure,the design of peripheral loop filter and VCO circuit based on LMX2336 is given.The way using Hotelk programming microcontroller HT98R068 to control LMX2336 to adjust the output frequency of VCO is described.