RTL8111F

Datasheet

Integrated Gigabit Ethernet Controller for PCI Express

26

Track ID: JATR-2265-11

Rev. 1.1

8.8.2.

Differential Receiver Parameters

Table 26. Differential Receiver Parameters

Symbol

Parameter

Min.

Typical

Max.

Units

UI

Unit Interval

399.88

400

400.12

ps

Differential Input Peak-to-Peak Voltage

0.175

-

1.05

V

Minimum Receiver Eye Width

0.4

-

-

UI

MAX-JITTER

Maximum Time Between The Jitter Median and

Maximum Deviation from The Median

-

-

0.3

UI

AC Peak Common Mode Input Voltage

-

-

150

mV

Differential Return Loss

10

-

-

dB

Common Mode Return Loss

6

-

-

dB

DC Differential Input Impedance

80

100

120

Ω

DC Input Impedance

40

50

60

Ω

Powered Down DC Input Impedance

200k

-

-

Ω

65

-

175

mV

DIFFENTERTIME

Unexpected Electrical Idle Enter Detect Threshold

Integration Time

-

-

10

ms

Total Skew

-

-

20

ns

Note: Refer to PCI Express Base Specification, rev.1.1, for correct measurement environment setting of each parameter.

8.8.3.

REFCLK Parameters

Table 27. REFCLK Parameters

Symbol

Parameter

100MHz Input

Min

Max

Units

Note

Rise Edge Rate

Rising Edge Rate

0.6

4.0

V/ns

2, 3

Fall Edge Rate

Falling Edge Rate

0.6

4.0

V/ns

2, 3

Differential Input High Voltage

+150

-

mV

2

Differential Input Low Voltage

-

-150

mV

2

Absolute Crossing Point Voltage

+250

+550

mV

1, 4, 5

-

+140

mV

1, 4, 9

Ring-Back Voltage Margin

-100

+100

mV

2, 12

500

-

ps

2, 12

Average Clock Period Accuracy

-300

+2800

ppm

2, 10, 13

Absolute Period

(Including Jitter and Spread Spectrum)

9.847

10.203

ns

2, 6

Cycle to Cycle Jitter

-

150

ps

2

Absolute Maximum Input Voltage

-

+1.15

V

1, 7

Absolute Minimum Input Voltage

-

-0.3

V

1, 8