Common Data Rates and Frequencies

The following lists common jitter-critical data rates and frequencies for various markets.

Ethernet

100 Mbps (Fast Ethernet)

1 Gbps (Gigabit Ethernet)

1.25 Gbps (1x Gigabit Ethernet)

2.5 Gbps (2x Gigabit Ethernet)

9.95328 Gbps (XSBI = 16x622.08 Mbps)

9.95328 Gbps (10GBASE-W)

10 Gbps (XGMII = 32x312.5 Mbps)

10 Gbps (10GBASE-T)

10.3125 Gbps (10GBASE-R (LAN PHY))

11.049107 Gbps (10GBASE-R FEC 255/238)

11.095727 Gbps (10GBASE-R OTU2 FEC 255/237)

12.5 Gbps (10GBASE-X and XAUI = 4x3.125 Gbps)

Rx/Tx reference clocks:

25 MHz

100 MHz

125 MHz

155.52 MHz (10GBASE-W (WAN PHY), XSBI)

156.25 MHz (10GBASE-R, 10GBASE-X, XAUI)

161.1328125 MHz (10GBASE-R (LAN PHY), XSBI)

312.5 MHz (10GBASE-R, 10GBASE-X, XAUI)

622.08 MHz (10GBASE-W (WAN PHY), XSBI)

625 MHz (10GBASE-R)

644.53125 MHz (10GBASE-R (LAN PHY), XSBI)

Fully-buffered DIMM (FB-DIMM)

3.2 Gbps (FB-DIMM1)

4 Gbps (FB-DIMM1)

4.8 Gbps (FB-DIMM1)

4.8 Gbps (FB-DIMM2)

6.4 Gbps (FB-DIMM2)

8 Gbps (FB-DIMM2)

9.6 Gbps (FB-DIMM2)

Rx/Tx reference clocks:

133.3333 MHz (FB-DIMM1)

166.6666 MHz (FB-DIMM1)

200 MHz (FB-DIMM1)

Forwarded Clock (FB-DIMM2)

Fibre Channel

1.0625 Gbps (1x Fibre Channel)

2.125 Gbps (2x Fibre Channel)

4.25 Gbps (4x Fibre Channel)

8.5 Gbps (8x Fibre Channel)

10.51875 (10x Fibre Channel)

11.317 (10x FEC Fibre Channel)

Rx/Tx reference clocks:

53.125 MHz

106.25 MHz

212.5 MHz

425 MHz

660.1841 MHz (10G Fibre Channel)

704.3805 MHz (10G FEC 255/239)

Infiniband

2.5 Gbps (1x Infiniband)

10 Gbps (4x Infiniband)

Rx/Tx reference clocks:

125 MHz

PCI Express

2.5 Gbps (PCI Express 1.1)

5 Gbps (PCI Express 2.0)

Rx/Tx reference clocks:

100 MHz

125 MHz

250 MHz

PCI and PCI-X

66 Mbps (per parallel link, PCI and PCI-X)

133 Mbps (per parallel link, PCI and PCI-X)

266 Mbps (per parallel link, PCI and PCI-X)

Rx/Tx reference clocks:

33.3333 MHz

66.6666 MHz

100 MHz

133.3333 MHz

Serial-attached SCSI (SAS)

1.5 Gbps (SAS 1)

3 Gbps (SAS2)

Rx/Tx reference clocks:

100 MHz

Serial-ATA (SATA)

1.5 Gbps (SATA/150, Gen 1)

3 Gbps (SATA/300, Gen 2)

6 Gbps (SATA/600, Gen 3)

Rx/Tx reference clocks:

100 MHz

Telecom

8 kHz (telephone voice channel PCM sampling frequency)

North American Non-synchronous Line Rates

64 kbps (DS0)

1.544 Mbps (DS1 or T1)

3.088 Mbps (2xT1)

6.312 Mbps (DS2 or T2)

44.736 Mbps (DS3 or T3)

274.176 Mbps (DS4 or T4)

400.352 Mbps (DS5 or T5)

Japan Non-synchronous Line Rates

1.544 Mbps (J1, same as T1)

6.312 Mbps (J2, same as T2)

7.786 Mbps (J2 alt)

32.064 Mbps (J3)

97.728 Mbps (J4)

565.148 Mbps (J5, same as E5)

European (CEPT) Non-synchronous Line Rates

2.048 Mbps (E1)

4.096 Mbps (2xE1)

8.192 Mbps (4xE1)

16.384 Mbps (8xE1)

32.768 Mbps (16xE1)

8.448 Mbps (E2)

34.368 Mbps (E3)

139.264 Mbps (E4)

565.148 Mbps (E5)

Synchronous Line Rates

(SONET for US & Canada as OC-n/STS-n, and

 SDH for Rest of World as STM-n)

51.84 Mbps (OC-1/STS-1)

155.52 Mbps (OC-3/STS-3, STM-1)

622.08 Mbps (OC-12/STS-12, STM-4)

2488.32 Mbps (OC-48/STS-48, STM-16)

2666.057143 Mbps (FEC 15/14 OC-48/STS-48, STM-16; OTU1)

9953.28 Mbps (OC-192/STS-192, STM-64)

10037.27 Mbps (ODU2 FEC 239/237)

10664.229 Mbps (FEC 255/238)

10709.225316 Mbps (FEC 255/237; OTU2)

12500 Mbps (Super FEC)

39813.12 Mbps (OC-768/STS-768, STM-256)

43018.413559 Mbps (OTU3)

Rx/Tx reference clocks:

19.44 MHz

38.88 MHz

77.76 MHz

155.52 MHz

311.04 MHz

622.08 MHz

627.32962 MHz (ODU2 FEC 239/237)

669.32558 MHz (FEC 255/237)

Video

143.18 Mbps (NTSC; SMPTE 259M Level A)

177 Mbps (PAL; SMPTE 259M Level B)

270 Mbps (CCIR656, ITU-R601; SMPTE 259M, Level C)

360 Mbps (SMPTE 259M Level D)

1440 Mbps (EU95)

1485/1.001 Mbps (SMPTE 292M)

1485 Mbps (SMPTE 292M)

Reference Clocks and Sample rates:

13.5 MHz (CCIR656, ITU-R601; SMPTE 259M Level C)

14.318 MHz (NTSC; SMPTE 259M Level A)

17.7 MHz (PAL; SMPTE 259M Level B)

18 MHz (SMPTE 259M Level D)

27 MHz

72 MHz (EU95)

74.25/1.001 MHz (SMPTE 292M)

74.25 MHz (SMPTE 292M)

148.5/1.001 MHz (SMPTE 292M)

148.5 MHz (SMPTE 292M)