SiTIME
MEMS OSC TCXO 250.0000MHZ LVDS. TCXO Oscillators 250MHz 3.3V 5ppm -40C +85C
SiTIME
MEMS OSC TCXO 290.0000MHZ LVPECL. TCXO Oscillators 290MHz 3.3V 5ppm -40C +85C
IDT, Integrated Device Technology Inc
XTAL OSC XO 637.0000MHZ LVDS SMD. Standard Clock Oscillators 637 MHz, LVDS 3.3V, 50 ppm