Specifications
SATA-IO Confidential 55
Table 7 - TX Rise/Fall Time
Limit
Time @ 1.5Gb/s (ps (UI))
Time @ 3Gb/s (ps (UI))
Min 20-80%
100 (0.15)
67 (0.20)
Max 20-80%
273 (0.41)
136 (0.41)
2.14.3. TSG-03 : Differential Skew
2.14.3.1. Device/Host Expected Behavior
See section 7.2.2.3.4 of Serial ATA Revision 2.6.
• See section 7.4.12 of Serial ATA Revision 2.6.
Measurement Requirements
• This test is only run once at the maximum interface rate of the product (1.5Gb/s or 3Gb/s).
• DC blocks or software/hardware equivalent shall be used.
• Please note that this requires measuring the mean skew of TX+ rise mid-point to the TX- fall mid-point and
the mean skew of TX+ fall mid-point to TX- rise mid-point, as stated in 7.2.2.3.4, and then computing the
Differential Skew = average of the magnitude (absolute value) of the two mean skews. This removes the
effect of rise-fall imbalance from the skew measurement.
• t
skewTX
measured at a maximum of 20 ps
Pass/Fail Criteria
• The value above shall be based on at least 10,000 UIs
2.14.4. TSG-04 : AC Common Mode Voltage
2.14.4.1. Device/Host Expected Behavior
See section 7.2.2.3.5 of Serial ATA Revision 2.6.
• See section 7.4.17 of Serial ATA Revision 2.6.
Measurement Requirements
• This test requirement is only applicable to products running at 3Gb/s.
• V
cm,acTX
measured at a maximum of 50 mVp-p (for products running at 3Gb/s)
Pass/Fail Criteria
2.14.5. TSG-05 : Rise/Fall Imbalance
2.14.5.1. Device/Host Expected Behavior
See section 7.2.2.3.9 of Serial ATA Revision 2.6.
• See section 7.4.16 of Serial ATA Revision 2.6.
Measurement Requirements
• This test requirement is only applicable to products running at 3Gb/s.
Table 8 – Rise / Fall Imbalance test name matrix
From edge
To edge
Test Name
HFTP
MFTP