VCXHR162245 VCXO VCXO 27.000MHZ VCXO 27.000MHZ 3.3V VCXO VC-TCXO VCXO/3.25 VCXO-039-24.576MHZ VCXO-039-38.880MHZ VCXO-039-44.736MHZ VCXO-067C/23.9627MHZ