2 Ch. NECL to NCML Level Translator

Applications: Converting Single-ended or Differential NECL Inputs to Differential NCML Outputs Differential NECL Inputs also accept Sinewave Signals High Speed Digital Communications System Testing Satellite/Radar/Telecommunications System Integration Features: fMAX > 1.5 GHz 650 ps tr 50 Ω/-2 V NECL Input Termination Complementary NCML Outputs DC Coupled SMA I/O Connectors Self-contained 1.3H x 2.9W x 3.9D unit includes AC/DC adapter Description The PRL-427N is a 2-channel NECL to differential NCML Logic Level Translator module. Each channel has a single-ended or differential NECL input and a ground-referenced differential 35 Ω NCML output. The NCML DC output logic Hi/Lo levels are 0 V and -350 mV, respectively, when terminated to ground-referenced 50 Ω loads. A switch selects either single-ended or differential inputs, as shown in Fig. 1. In the differential input mode, both inputs D and D are terminated internally into 50 Ω/VTT, where VTT is equal to –2 V for NEC