USB type high speed edge pulse generator Fedge(Made by PMK)

Fedge is a generator that can generate pulses at fast edges. Even though it is the size of a USB memory, it generates a pulse with a rise time of 32ps. The operation changes the measurement mode with one push button. The waveform is a flat pulse waveform with very little overshoot or undershoot, and can be used for TDR testing by checking the frequency band of the device under test and combining it with a splitter or probe.

 

 

【application】

§  Test coupon (test electrode)

§  Impedance trace

§  Cable deterioration, characteristic test

§  TDR-time domain reflectometry

§  PCB test trace (bare board inspection)

§  Fast edge generation for DSP correction

§  Instrument calibration

§  1 Board/module troubleshooting

 ■Specifications

item

specification

Rise time/fall time

32ps

Flatness

0.1dB 2GHz

Output voltage

0-500mV

Output impedance

50 Ω

Output connector

3.5 mm

Operating temperature range

0ºC to 45ºC (at 80% humidity)

Pulse output format

Square wave (duty 50%)

Output frequency

1kHz, 10kHz, 100kHz, 1MHz, 10MHz



■Measurement of discontinuity between cable and connector

The TDR/TDT is typically a large, expensive piece of equipment that includes a fast edge pulse and a sampling oscilloscope.
TDR/TDT is used to measure the characteristics of boards, cables and devices using reflected waves. TDT uses transmission measurements to provide similar functionality. Fast edge pulse generator / miniature TDR test, a pulse generator of low-cost pocket-sized, splitter and real resistance port system attached
to the measured in combination Im oscilloscope.

 



■Cable length measurement (TDR measurement)

This figure is an example of measurement of RTK028 cable with 70% speed coefficient. A round trip takes 4.47ns and is calculated to
be 47cm . In this way, the TDR function makes it easy to identify a bad cable.

 



■Cables and connectors

The TDR/TDT is typically a large, expensive piece of equipment that includes a fast edge pulse and a sampling oscilloscope.
TDR/TDT is used to measure the characteristics of boards, cables and devices using reflected waves. TDT uses transmission measurements to provide similar functionality. Fast edge pulse generator / miniature TDR test, a pulse generator of low-cost pocket-sized, splitter and real resistance port system attached
to the measured in combination Im oscilloscope.

 



■ Equipment configuration

appearance

model

Transmitter
3.5mm (R)

USB
power
cord

Splitter

3.5mm(R)-
BNC(P)
connector

TDR
evaluation
board

Fedge

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Fedge
incl. TDR
KIT

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Fedge
incl. PV KIT

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