SNAS785D November 2019 – March 2022 LMX2694-EP
PRODUCTION DATA
The OSCIN pins are used as a frequency reference input to the device. The input is high impedance and requires AC-coupling caps at the pin. The OSCIN pins can be driven single-ended with a CMOS clock or XO. Differential clock input is also supported, making it easier to interface with high-performance system clock devices such as TI’s LMK series clock devices. As the OSCIN signal is used as a clock for the VCO calibration, a proper reference signal must be applied at the OSCIN pin at the time of programming FCAL_EN.