These new clock oscillators and voltage controlled crystal oscillators are ideally suited for SONET/SDH, PCS base stations, and reference clock applications. The M5001/M5002 series (Clock Oscillator) and the M5003/M5004 series (VCXO) offer differential LVPECL/LVDS outputs for a low noise driving signal. When properly terminated, the outputs of these devices provide a high level of common mode noise rejection. Both devices are packaged in a surface mount platform that is pin for pin compatible with the 4-pin and 6-pin ceramic J-lead 9 × 14 mm product families. Enable/Disable outputs with enable "high" is available, as well as 3.3 or 5.0 volt operation.