The PRL-429LP is a 2-channel NCML to differential LVPECL Logic Level Translator module. Each channel has a differential NCML input and a differential LVPECL output. The LVPECL DC output logic Hi/Lo levels are 2.20 V and 1.75 V, respectively, when terminated to 50 Ω/+1.3 V loads.
The PRL-429LP complementary outputs must be used together for driving differential LVPECL inputs only, because the reduced output logic swing of 400 mVPP (for short circuit protection reasons) is not logic level compatible with some single-ended LVPECL inputs.
These Logic Level Translators are designed specifically for use in testing and interfacing of high speed digital communications circuits, where conversion between NCML and LVPECL logic signals is often required. The PRL-429LP is part of the Mini Modular Instrument™ (MMI) family that find increasing applications in high speed digital data recording instruments, transient recording instruments and other high speed measurement equipment where NCML and LVPECL signals are often specified.
(0° C ≤ TA ≤ 35° C)*
Unless otherwise specified, all logic level and dynamic measurements are made with all outputs terminated into 50 Ω/VTT, where VTT = 0 V for LVPECL outputs.
|VIL||Input Lo Voltage||V|
|VIH||Input Hi Voltage||V|
|VOL||DC Output Low Level, into 50 Ω/+1.3 V||1.75||V|
|VOH||DC Output High Level, into 50 Ω/+1.3 V||2.20||V|
|VOPP1||Output Logic Swing from DC-500MHz||mV|
|VOPP2||Output Logic Swing from 500MHz-1GHz||mV|
|VOPP3||Output Logic Swing from 1GHz -1.5GHz||mV|
|IDC1||DC Input Current, +8.5 V||160||mA|
|IDC2||DC Input Current, -8.5 V||-315||mA|
|VDC||DC Input Voltage||±7.5||±8.5||±12.0||V|
|VAC||AC/DC Adapter Input Voltage||108||120||132||V|
|tPLH||Propagation Delay to output ↑||1.5||ns|
|tPHL||Propagation Delay to output ↓||1.5||ns|
|tR/tF||Rise/Fall Times (10-90%)||650||750||ps|
|TSKEW||Skew between any 2 outputs||40||75||ps|
|VINI||Minimum Input Voltage @ 150 MHz||20||10||mVpp|
|VINII||Minimum Input Voltage @ 250 MHz||20||10||mVpp|
|fMAX||Max Clock Frequency||1250||1500||MHz|
|Size||1.3H x 2.9W x 3.9D||in.|
|Weight, excluding AC adapter||7||Oz|
|Shipping weight, including AC adapter||4||lb.|