User Manual
Table Of Contents
- Introduction TO QPHY-DDR3
- Signals measured
- DDR3 MEASUREMENT PREPARation
- Basic Functionality
- Using Qualiphy DDR3
- QualiPHY Compliance Test Platform
- QPHY-DDR3 Test Configurations
- 1) Clock tests DDR3-1333 (1 Probe)
- 2) CKdiff-DQse-DQSdiff 1333 Write Burst (3 Probes)
- 3) CKdiff-DQse-DQSdiff 1333 Read Burst (3 Probes)
- 4) Eye Diagram (3 Probes Debug)
- 5) Eye Diagram with CS Enabled (4 Probes Debug)
- 6) CKDiff-DQse-DQS-ADD/CTRLse (4 Probes Debug)
- 7) CKdiff-DQse-DQSp-DQsn (4 probes test, each DQS signal probed single ended)
- 8) CKp-CKn-DQse-DQSdiff (4 probe test, each CK signal is probed single ended)
- 9) Vref tests
- D1) Demo of All Tests
- QPHY-DDR3 Variables
- QPHY-DDR3 Limit Sets
- QPHY-DDR3 Tests
- Clock Tests
- tCK(avg), Average Clock Period
- tCK(abs), Absolute Clock Period
- tCH(avg), Average High Pulse Width
- tCL(avg), Average Low Pulse Width
- tCH(abs), Absolute High Pulse Width
- tCL(abs), Absolute Low Pulse Width
- tJIT(duty), Half Period Jitter
- tJIT(per), Clock Period Jitter
- tJIT(cc), Cycle to Cycle Period Jitter
- tERR(n per), Cumulative Error
- Eye Diagram
- Electrical Tests
- Timing Tests
- Four Probe tests measurements using ADDR/CTL
- Clock Tests
16 917717 Rev C
USING QUA LIPHY DDR3
QualiPHY DDR3 guides the user, step-by-step, through each of the source tests described in JEDEC
Standard No. 79-3D. To do this, the user must setup a test session.
Users choose test configurations to run. There are several pre-loaded test configurations inc l ud ing:
1) Clock tests DDR3-1333 (1 Probe)
2) CKdiff-DQse-DQSdiff 1333 Write Burst (3 probes)
3) CKdiff-DQse-DQSdiff 1333 Read Burst (3 probes)
4) Eye Diagram (3 Probes Debug)
5) Eye Diagram with CS enabled (4 Probe, fi xG)
6) Add/Ctrl tests DDR3-1333 (4 probes, fixG)
7) PrePostamble tests (3 Probes, fixG)
D1) Demo of All tests
The pre-loaded configurations provide quick and easy ways to begin compliance testing. You can create
your own custom configurations (see the Customizing QualiPHY topic for details).
The variables are pre-loaded with the standard settings for compliance testing; however, the user may
choose to create their own configuration with the variables set as desired.
QUALIPHY COMPLIANCE TEST PLATFORM
QualiPHY is LeCroy’s compliance test framework which leads the user through the compliance tests.
QualiPHY displays connection diagrams to ensure tests run properly, automates the oscilloscope setup,
and generates complete, detailed reports.
The QualiPHY software application automates the test and report generation.