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Differential Interface Electrical Characteristics
Copyright © 2008 Marvell Doc. No. MV-S104859-U0 Rev. E
December 2, 2008, Preliminary Document Classification: Proprietary Information Page 123
8.7.3.1 SATA-I Interface Gen1i Mode Driver and Receiver Characteristics
Table 67: SATA-I Interface Gen1i Mode Driver and Receiver Characteristics
Description Symbol Min Max Units Notes
Baud Rate BR Gbps -
Baud rate tolerance Bppm -350.0 350.0 ppm -
Spread spectrum modulation frequency Fssc 30.0 33.0 kHz -
Spread spectrum modulation Deviation SSCtol -5000.0 0.0 ppm -
Unit Interval UI ps -
Differential impedance Zdifftx 85.0 115.0 Ohm -
Single ended impedance Zsetx 40.0 - Ohm -
Differential return loss (75 MHz-150 MHz) RLOD 14.0 - dB -
Differential return loss (150 MHz-300 MHz) RLOD 8.0 - dB -
Differential return loss (300 MHz-1.2 GHz) RLOD 6.0 - dB -
Differential return loss (1.2 GHz-2.4 GHz) RLOD 3.0 - dB -
Differential return loss (2.4 GHz-3.0 GHz) RLOD 1.0 - dB -
Output differential voltage Vdifftx 400.0 600.0 mV 2
Total jitter at connector data-data, 5UI TJ5 - 0.355 UI 1
Deterministic jitter at connector data-data, 5UI DJ5 - 0.175 UI -
Total jitter at connector data-data, 250UI TJ250 - 0.470 UI 1
Deterministic jitter at connector data-data, 250UI DJ250 - 0.220 UI -
Differential impedance Zdiffrx 85.0 115.0 Ohm -
Single ended impedance Zsetx 40.0 - Ohm -
Differential return loss (75 MHz-150 MHz) RLID 18.0 - dB -
Differential return loss (150 MHz-300 MHz) RLID 14.0 - dB -
Differential return loss (300 MHz-600 MHz) RLID 10.0 - dB -
Differential return loss (600 MHz-1.2 GHz) RLID 8.0 - dB -
Differential return loss (1.2 GHz-2.4 GHz) RLID 3.0 - dB -
Differential return loss (2.4 GHz-3.0 GHz) RLID 1.0 - dB -
Input differential voltage Vdiffrx 325.0 600.0 mV -
Total jitter at connector data-data, 5UI TJ5 - 0.430 UI 1
Deterministic jitter at connector data-data, 5UI DJ5 - 0.250 UI -
Total jitter at connector data-data, 250UI TJ250 - 0.600 UI 1
Deterministic jitter at connector data-data, 250UI DJ250 - 0.350 UI -
Note s:
General Comment: For more information, refer to SATA II Revision 2.6 Specification, February, 2007.
General Comment: The load is 100 ohm differential for these parameters, unless otherw ise specified.
General Comment: To comply w ith the values presented in this table, refer to your local
Marvell representative for register settings.
1. Total jitter is defined as TJ = (14 * RJσ) + DJ where Rjσ is random jitter.
2. Output Differential Amplitude and Pre-Emphasis are configurabile. See functional register description
for more details.
Driver Parameters
Receiver Parameters
666.67
1.5