TCXO-214C6 21.250M TCXO-214C6/26MHZ TCXO-24.5535MHZ TCXO-25.1MHz-to-50MHz TCXO-250.1MHz-to-500MHz TCXO-26M TCXO-30A3 12.355MHZ TCXO-30A3(16.384MHZ) TCXO-318-19.440MHZ TCXO-320-10.000