Description:
The PRL-430N is a dual channel, differential/
single-ended input ECL receiver module with complementary
outputs. The PRL-430P is the PECL version, and the PRL-430LP is the
LVPECL version. They are intended for converting single-ended signals, including
GHz sine waves, into differential ECL signals for driving long lines and
for receiving differential signals from long lines.
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/-2 V, and, therefore, 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. The D
inputs are switched internally to VBB, nominally -1.3 V, and termination resistors
RT's for the D
input channels are changed to 62 Ω. Complementary outputs of the PRL-430N are designed for driving 50 Ω
loads terminated into -2 V. With internal pull-down
resistors these outputs can also be AC coupled for driving
50 Ω loads
terminated to ground or to other voltages.
The PRL-430N and PRL-430P are housed in a 1.3 x 2.9
x 2.2-in. extruded aluminum enclosures and supplied with a
±8.5 V/1.4 A
AC/DC adapter.
|