2 Ch. Translator, PECL to LVPECL

SKU:

$ 1,282.25

Item	Description
88000102-4	Cable, triple voltage, with modular plugs, Length in ft.
88000103-4	Cable, triple voltage, with modular plug and pig tail leads, Length in ft.

Product Description
Diagrams
Applications
Specifications
Documents

Applications:

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

Features:

f_max > 300 MHz
1.1 ns Typical t_r
50 Ω/+3 V Input Termination
Single Ended or Differential Inputs
Complementary LVPECL Outputs
SMA I/O Connectors
Self-contained 1.3 x 2.9 x 3.9-in. unit including AC/DC Adapter

Description

The PRL-460PLPD is a dual channel PECL to LVPECL Logic Level Translators. It can receive either single ended or differential input signals, to be selected by a switch. The outputs of the PRL-460PLPD translator is designed for driving 50 Ω loads terminated to +1.3 V. These high speed translators facilitate testing and integration of high speed digital communications circuits and systems, where conversion of signals between the PECL to LVPECL logic families is often required.

The PRL-460PLPD 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-460PLPD are terminated 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 +3.7 V, and termination resistors R_T 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.

Fig. 1, PRL-460PLPD Block Diagram

(0° C ≤ T_A ≤ 35° C)*

Symbol	Parameter	PRL-460PLPD			Unit
Symbol	Parameter	Min	Typ	Max	Unit
R_in	Input Resistance	49.5	50.0	50.5	Ω
R_out	Output Resistance	49.5	50.0	50.5	Ω
V_TT	D Input Termination Voltage (fixed)	2.7	3.0	3.3	V
V_T1	D Input Termination Voltage	2.7	3.0	3.3	V
V_T2	D Input Termination Voltage (variable)	3.33	3.70	4.07	V
V_OL	Output Low Level	1.5	1.7	1.8	V
V_OH	Output High Level	2.3	2.5	2.7	V
I_DC1	DC Input Current, +8.5 V		+250		mA
I_DC1	DC Input Current, -8.5 V		-300		mA
V_DC	DC Input Voltage	±7.5	±8.5	±12	V
V_AC	AC/DC Adapter Input Voltage	103	115	127	V
t_PLH	Propagation Delay to output ↑		2		ns
t_PHL	Propagation Delay to output ↓		2		ns
t_r/t_f	Rise/Fall Times (20% - 80%)*		1100	1300	ps
t_SKEW	Skew between any 2 outputs		500	1000	ps
f_max	Max Clock Frequency	300			MHz
	Size	1.3 x 2.9 x 3.9			in.
	Weight excluding AC adapter	7			Oz
	Shipping weight including AC adapter	4			lb.

*Unless otherwise specified, dynamic measurements are made with all outputs terminated into 50 Ω/V_TT, where V_TT =+1.3 V for LVPECL outputs.

For the PRL-460PLPND, an unused complementary output must be either terminated into 50 Ω/+1.3 V or AC coupled into a 50 Ω load; otherwise, output waveform distortion and rise time degradation will occur. Use the PRL-550LPQ4X four channel LVPECL Terminator for the 50 Ω/+1.3 V termination and for connection of LVPECL signals to 50 Ω input oscilloscopes. For the PRL-460PLPD, very slight output waveform distortion and rise time degradation will occur when an unused complementary output is not terminated. For optimum performance, however, all outputs should be terminated.

PDF Datasheet coming soon.

2 Ch. Translator, PECL to LVPECL

Applications:

Features:

Description

(0° C ≤ TA ≤ 35° C)*

*Unless otherwise specified, dynamic measurements are made with all outputs terminated into 50 Ω/VTT, where VTT =+1.3 V for LVPECL outputs.

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(0° C ≤ T_A ≤ 35° C)*

*Unless otherwise specified, dynamic measurements are made with all outputs terminated into 50 Ω/V_TT, where V_TT =+1.3 V for LVPECL outputs.