DSX321G 24.576MHZ DSX321G 24M 12PF 20PPM DSX321G 24MHz DSX321G 25.0000MHZ DSX321G 25.000MHZ DSX321G 25M DSX321G 25MHz DSX321G 25MHZ 10PF DSX321G 25MHz 10PF 20PPM DSX321G 25MHZ 12PF