VRTS3 Distributed System Demo Board
Demonstration Circuit
The board contains eight individual circuit sections as identified in the table below. These circuits are typical in most distributed systems providing an excellent test bed for demonstrating non-invasive, in-system measurement, optimization and troubleshooting techniques. The Table below shows the Circuit Sections on the VRTS3 Board.
| Section | Function |
|---|---|
| POL | 5V USB input to 3.3V 2.8MHz switching regulator |
| REF03 | 2.5V low noise voltage reference |
| OPAMP | 245MHz Bandwidth unity gain opamp buffer |
| LDO | LD1086 voltage regulator 5V USB input to 3.3V output |
| CLOCKS/BUFFERS | 10MHz and 125MHz clocks |
| CALIBRATION | Short-Open-Load and 1 Ohm calibration ports |
| PLANES & CAPS | Parallel tantalum and ceramic capacitor on a small PCB plane |
| MICROSTRIPS | 50 Ohm microstrips with precision aberrations – one with a ground void |
VRTS3 Distributed System Demo Board V1.0
| Model | Description | Price |
|---|---|---|
| VRTS03 | VRTS3 Distributed System Demo Board V1.0 | $299.00 Add to Cart |
| VRTS03-PIB | VRTS3 Demo Board Plus the Power Integrity Book – Special Limited Time Offer | $338.00 Add to Cart |
The VRTS3 demonstration board is a self-contained board designed to support a wide range of typical distributed system measurements. Input power is provided via a USB port using a typical USB-A to USB-B cable. No additional equipment is required for this board other than the measurement instruments.
Supported Measurements
| Test | Signal Injectors Needed |
|---|---|
| 1 Port Impedance | 1-Port Probe and DC Block |
| Output Impedance | See Impedance Measurement Table |
| Bode Plot | J2100A or J2101A Injection Transformers |
| Non-Invasive Stability Measurement (NISM) | See Impedance Measurement Table and the Support Page for NISM Downloads |
| Switching Frequency | |
| Switch Rise Time | |
| Duty Cycle Jitter | |
| Noise | DC Block, 1 Port Probe, J2180A Preamp |
| PSRR | DC Block, J2120A, or J2111B |
| Step Load Response | J2111B , J2112A, or Transient Load Steppers |
| Clock Jitter | |
| Clock Rise Time | |
| Jitter Sensitivity | DC Block |
| Power Supply Impedance | See Impedance Measurement Table, J2121A |
| Crosstalk | |
| Clock Buffer PDN Noise | DC Block |
| Clock Buffer Impedance | See Impedance Measurement Table |
| Parallel Capacitor resonance | Decoupling Test Board Kit and the 2-Port Probe |
| Plane Impedance | 2-Port Probe |
| Velocity Factor and Er | J2154A TDR |
| Trace Impedance | J2154A TDR |
| Impedance of Broken Ground | J2154A TDR |
| 2 port Shunt Thru Impedance | 2 Port Probe, DC Blocks |
| Ripple | P2105A 1-port Probe, Preamp |
| EMI | Near Field Probes |