Seagate ST9146802SS, ST973402SS Tx+ TCTF Tx, 10 nF, Probe, points, 50 ohm, SAS internal connector

Figure 18 shows the compliance interconnect test load.

Tx+

TCTF

Tx-

10 nF	50 ohm
Probe
points
10 nF	50 ohm

SAS internal connector

Figure 18. Compliance interconnect test load

Figure 19 shows the zero-length test load.

10 nF	50 ohm
Tx+
Probe
points
10 nF	50 ohm

Tx-

SAS internal connector

Figure 19. Zero-length test load

Figure 20 shows an ISI loss example at 3.0 Gbps.

S 21 (dB)

0

-10.9 dB

Compliance interconnect magnitude response and

ISI loss example for 3.0 Gbps

ISI loss > 3.9 dB

Sample compliance interconnect

Frequency (GHz)

0.3 1.5 3.0

Figure 20. ISI loss example at 3.0 Gbps

Savvio 10K.2 SAS Product Manual, Rev. B 69