ZHCSEK3G December 2015 – August 2022 LMX2592
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
An input signal is required for the PLL to lock. The input signal is also used for the VCO calibration, so a proper signal needs to be applied before the start of programming. The input signal goes to the OSCinP and OSCinM pins of the device (there is internal biasing which requires AC-coupling caps in series before the pin). This is a differential buffer so the total swing is the OSCinM signal subtracted by the OSCinP signal. Both differential signals and single-ended signal can be used. Below is an example of the max signal level in each mode. It is important to have proper termination and matching on both sides (see Section 8).