Compliance Apps

LPDDR2 Compliance Test

Revision 1.0, December, 2009
By: ASA

Note: Engineering work for the LPDDR2 Compliance App is complete, but it has not been tested due to a lack of data. ASA offers This email address is being protected from spambots. You need JavaScript enabled to view it. on M1 products to companies who are willing to provide data for testing of its Compliance Apps.

Description

Using the LPDDR2 Compliance Test with M1 Waveform Tools provides you with an expert solution to your compliance testing needs. M1 Waveform Tools is compatible with every real-time Keysight/Agilent, Tektronix, LeCroy, Rohde & Schwarz, and Yokogawa scope on the market, including the new Keysight/Agilent 90000 and Tek 70000 series. In addition, M1 supports digitizers manufactured by Keysight/Agilent/Acqiris, GaGe,  National Instruments, Spectrum, and ZTEC.

By going with the M1 solution, if you don't meet your numbers you have the full power of M1 available to figure out what the problem is. If you need help, you can collaborate instantly by packaging up your waveform and sending it to your local signal integrity guru.

Most major signal standards are included, for free, with every installation of M1. Regardless of what standard you are working with, you will be ready to begin testing immediately with M1.

Specifications/Details

Spec Level:      JESD Standard No. 209-2E, April, 2011

App Update Level/Date:      1.0, August 2012

Best Practices Revision Level:      5

Minimum M1 version required:      v6.06.0

App Encryption:      none

Measurements Made:      Our LPDDR2 Compliance Test will test the following tables in the JESD209-2E specification

  • Table 75 — Single-Ended AC and DC Input Levels for CKE
  • Table 78 — Allowed time before ringback (tDVAC) for CK_t-CK_c and DQS_t-DQS_c
  • Table 80 — Cross point voltage for differential input signals (CK, DQS)
  • Table 85 — Output Slew Rate (single-ended)
  • Table 87 — Differential Output Slew Rate
  • Table 88 — AC Overshoot/Undershoot Specification
  • Table 103 — LPDDR2 AC Timing Table
  • Table 107 — Required time tVAC above VIH(ac) {below VIL(ac)} for valid transition
  • Table 111 - Required time tVAC above VIH(ac) {below VIL(ac)} for valid transition

Assumptions:

  • Testing will require 4 x single-ended and 2 x differential probes

Features

  • Not Applicable for this App

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