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
6 917717 Rev C
FIGURES
Figure 1. READ Burst Operation RL = 5 (AL = 0, CL = 5, BL8) [JESD79-3D Figure 25] ...................... 14
Figure 2. READ Burst Operation RL = 9 (AL = 4, CL = 5, BL8) [JESD79-3D Figure 26] ...................... 14
Figure 3. Write Timing Definition and Parameters [JESD79-3D Figure 43] ......................................... 15
Figure 4. Report menu in QualiPHY Ge n eral Setup ............................................................................... 17
Figure 5. The Test Report includes a summary table with links to the det ailed test results ............. 18
Figure 6. QualiPHY main menu and compliance test Standard selection menu ................................ 21
Figure 7. QualiPHY configuration s election menu ................................................................................ 22
Figure 8. QualiPHY test item selection menu ......................................................................................... 23
Figure 9. Variable Setup and Limits Manager windows ........................................................................ 24
Figure 10. St art button .............................................................................................................................. 25
Figure 11. Example of pop-up connection diagram and dialog box .................................................... 25
Figure 12. PCF200 Deskew Fixture ........................................................................................................... 9
Figure 13. Differential probe properly connected to the fixture (Solder-In configuration) ............... 10
Figure 14. Accessing the probe calibration menu ................................................................................. 11
Figure 15. Basic Probes Calibration menu ............................................................................................. 11
Figure 16. Advanced Mode Probe Calibration menu ...................................... Error! Bookmark not defined.
Figure 17. Probes Calibration menu Advanced tab ........................................ Error! Bookmark not defined.
Figure 18. AC input test signal waveform [JESD79-3D figure 94] ........................................................ 37
Figure 19 - Data output (read) timing [JESD79-3D figure 27] ............................................................... 39
Figure 20. Burst read operation [JESD 79-3D figure 28] ........................................................................ 40
Figure 21. Burst write op eration [JESD79-3D figure 43] ....................................................................... 41
Figure 22. Data i n p u t (write) timing [JESD79-3D figure 43] .................................................................. 41
Figure 23: tIS illustration (Figure 111 from JESD79-3E) ........................................................................ 43
Figure 24: Vref table (Table 23 from JESD79-3E) ................................................................................... 44