KEY FEATURES:

Precise Differential or Single-Ended TDR – Time Domain Reflectometry in one convenient package
Compatible with the Picotest P2104A 1-port and P2105A TDR Browser Probes, as well as other manufacturers’ 50 Ohms probes
All applications requiring a fast, precise edge
Low cost; USB or battery powered

Applications*:

Low-cost PCB coupon tester - Characteristic Impedance PCB traces
Measure cable and PCB trace length, characteristic impedance, and dielectric constant
Locate and detect impedance mismatches
Measure parasitic values of inductance and capacitance such as bond wires, vias, and ESL
Verify the integrity of cable crimps and connector launches
Measure PCB trace path rise/fall time and overshoot/undershoot
Supports cable and trace loss modeling
Troubleshoot clock jitter and crosstalk
Measure microwave filters
Test the frequency bandwidth, rise/fall time, and flatness of lab instruments and probes

What's included:

J2154A PerfectPulse® Differential TDR
Picotest TDR Demo Trace Board
USB-C Cable
Two (2) BNC-SMA 12" PDN Cables®
1 Year Warranty

Description:

The J2154A is a low-cost single or differential TDR in a portable package. It turns your oscilloscope into a PCB Trace, Cable, Connector, and Coupon Tester. With its 10.5GHz pulse generator and internal power splitter, the J2154A can make TDR, FRA (probe measurement), and VNA (S21) measurements. The J2154A has improved jitter (~20dB). The J2154A now comes in multiple colors. Please choose your color: silver, black, red, blue, or gold, when ordering.

The PerfectPulse signal generator provides a square ~30ps edge pulse in a pocket size, self-contained package, requiring only a USB power source. The affordable, small, simple to use, portable and lightweight unit with unique specifications for differential lines and high accuracy in detecting and locating small resolution impedance changes. The 50 Ohm output signal is very square, without overshoot or undershoot making it perfect for verifying instrument and probe rise/fall times, as well as verifying signal path rise/fall time and undershoot/overshoot. The addition of a 10GHz power splitter allows the signal generator to be used as a reflectometer for measuring PCB coupons, cable and PCB trace impedance, verifying cable crimps, measuring trace and cable lengths, dielectric constant and many other applications.

Modes of Operation and Connectivity TDR – For single-ended and differential mode TDR measurements, Connectors 1 and 3 connect to the oscilloscope channels, while connectors 2 and 4 connect to the probes. This is the native mode and most common mode of operation. These can be either single-ended or differential measurements. Connectors 1 and 2 are used for single-ended measurements.

The Picotest TDR Demo board includes differential and single-ended test traces with varying impedances.

Trace 1 (TP1/TP2) – Single ended 50 Ohm trace
Trace 2 (TP3/TP4) – Single ended OhmBeatty standard
Trace 3 (TP5/TP6) – Single ended trace with two impedance steps 3000 mils apart
Trace 4 (TP7/TP9) – Differential 50 Ohm test traces
Trace 5 (TP11/TP12 and TP15/16) – Differential test traces; one with two impedance steps 200 mils apart and one with two larger discontinuities 750 mils apart
Trace 6 (TP13/TP14 and TP17/18) – Differential test traces; one with two impedance steps 500 mils apart and one with two larger impedance steps 1000 mils apart

Picotest J2154A PerfectPulse® Differential TDR

J2154A Color Options (optional)

Quantity

Works with any oscilloscope (50 ohms) that supports the math expressions
Typical rise/fall time: 30ps
Output Voltage 0 - 250mV +/-3mV @ 25C
Flatness 3dB at 10.5GHz 0.1dB (typ.) at 2GHz
Skew output to output: 2 psec
Return Loss: typical 55dB max 40dB
Resolutions ~164 mils (FR4) *
Connectors: SMA
1MHz repetition rate – maximum cable length exceeds 50m
DC Input Power: USB Type C 5V 118mA typical 130mA max
One (1) Year Manufacturer's Warranty
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
Warranty: PICOTEST CORP. guarantees that this product meets its published specifications at the time of shipment from the factory. Under proper installation it should work as expected.
Warranty Period: This equipment is warranted against defects in material and manufacturing for a period of one (1) year from the date of shipment. During the warranty period, Signal Edge Solutions is responsible for necessary repairs as long as the product can be proved to be defective. For warranty service or repair this product must be returned to a service facility designated by Signal Edge Solutions. Please contact your local service representative.
Excluded Items: This warranty does not include consumptive parts such as fuses, buttons and relays. Neither does this warranty cover defects caused by improper installation, improper or insufficient maintenance, unauthorized modification, improper operation, ignorance of environmental specifications or improper software or interfacing.
Remarks:
No other warranty is expressed or implied, except for the above mentioned.
The remedies provided herein are the buyer’s sole and exclusive remedies. Signal Edge Solutions shall not be liable for any direct, indirect, special, incidental or consequential damages.
Limitation of warranty
Our warranties do not cover any damage resulting from unauthorized modification or misuse.
Unless mentioned elsewhere in this document, our warranty does not apply to fuses, probes, and problems arising from normal wear or your abnormal operations.
Our warranties do not apply on any direct, incidental, special, or consequential damages.
The above warranties are exclusive and no other warranty is expressed or implied. Signal Edge Solutionsdisclaims any implied warranties of MERCHANTABILITY, SATISFACTORY QUALITY, and FITNESS for any particular reasons.

Picotest J2154A PerfectPulse® Differential TDR

Detailed Specifications

Return & Refund Policy

Shipping Info

Warranty Information