PRL-460NPD/PND Dual Channel ECL/PECL to PECL/ECL Translators

Mini Modular Instruments > Logic Level Translators > PRL-460

Applications:

• Converting Single Ended or Differential ECL/PECL Signals to PECL/ECL Signals
• High Speed Digital Communications systems Testing
• High Speed SONET Clock Level Translation

Features:

•  f_max > 1000/300 MHz for PRL-460PND/PRL-460NPD
• 750 ps/1.1 ns Typical t_r for PRL-460PND/PRL-460NPD
• 50 Ω/-2 V Inputs for PRL-460NPD and 50 Ω/3 V for PRL-460PND
• Single Ended or Differential Inputs.
• Complementary ECL/PECL Outputs
• SMA I/O Connectors
• Self-contained 1.3 x 2.9 x 3.9-in. units including AC/DC Adapters

Description

The PRL-460NPD and PRL-460PND are, respectively, dual channel ECL to PECL and PECL to ECL Logic Level Translators. Each unit can receive either single ended or differential input signals, to be selected by a switch. The outputs of the PRL-460NPD translators are designed for driving 50 Ω loads terminated to 3 V and those of PRL-460PND to 50 Ω loads terminated to -2 V. These high speed translators facilitate testing and integration of high speed digital communications circuits and systems, where conversion of signals between the ECL to PECL logic families is often required.

The PRL-460NPD input is designed to interface with ECL circuits operating with a -5.2 V or -4.5 V supply, and The PRL-460PND input is designed to interface with PECL circuits operating with a +5 V supply. In the differential input mode, both inputs D and D of the PRL-460NPD are terminated into 50 Ω/-2 V, and those of the PRL-460PND into 50 Ω/3 V. In this mode, either one or both inputs can accept AC coupled signals as well. In the single input mode, signals should be connected to the D inputs only. Inputs D are switched internally to V_BB, nominally -1.3 V for the PRL-460NPD and 3.7 V for the PRL-460PND, and termination resistors R_T's for the D input channels are changed to 62 Ω.

Each unit is supplied with a ±8.5 V AC/DC Adapter and housed in an attractive 1.3 x 2.9 x 3.9-in. extruded aluminum enclosure.

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