Intel IXF1104 5.6.2.6Transmit Jitter, 5.6.2.7Receive Jitter, Sinusoidal Jitter Mask, Frequency

IXF1104 Quad-Port 10/100/1000 Mbps Ethernet Media Access Controller

Figure 23. SerDes Receiver Jitter Tolerance

Sinusoidal Jitter Mask

		16 ui		375 Hz 16 ui
	10+1					22.5836 kHz 8.5 ui
(UI)
Peak-to-Peak Amplitude	0
	10-1					1.9195 MHz 0.1 ui
	100	101	102	103	104	105	106	107
				Frequency
								B0745-02

Note: UI = Unit interval.

5.6.2.6Transmit Jitter

The SerDes core total transmit jitter, including contributions from the intermediate frequency PLL, is comprised of the following two components:

•A deterministic component attributed to the SerDes core’s architectural characteristics

•A random component attributed to random thermal noise effects

Since the thermal noise component is random and statistical in nature, the SerDes core total transmit jitter must be specified as a function of BER.

5.6.2.7Receive Jitter

The SerDes core total receiver jitter, including contributions from the intermediate frequency PLL, is comprised of the following two components:

•A deterministic component attributed to the SerDes core architectural characteristics

•A random component attributed to random thermal noise effects.

Datasheet 105

Document Number: 278757

Revision Number: 007

Revision Date: March 25, 2004