Micrel, Inc.

SY58608U

October 2006

5

M9999-102706-A

hbwhelp@micrel.com or (408) 955-1690

AC Electrical Characteristics

(8)

Ω across the output pairs, Input t

≤300ps; T

unless otherwise stated.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Maximum Frequency

NRZ Data

3.2

4.25

Gbps

Clock

2

3

GHz

Propagation Delay

IN-to-Q

170

280

420

ps

130

200

300

ps

Within Device Skew

Note 9

5

20

ps

Part-to-Part Skew

Note 10

135

ps

Data

Random Jitter

Note 11

1

Deterministic Jitter

Note 12

10

Clock

Cycle-to-Cycle Jitter

Note 13

1

Total Jitter

Note 14

10

Output Rise/Fall Time

(20% to 80%)

At full output swing.

35

60

100

ps

Duty Cycle

Differential I/O

47

53

%

Notes:

8.

These high-speed parameters are Guaranteed by design and characterization.

9.

Within-device skew is measured between two different outputs under identical input transitions.

10. Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature and no skew at the edges at the

respective inputs.

11. Random jitter is measured with a K28.7 pattern, measured at

≤ f

12. Deterministic jitter is measured at 2.5Gbps with both K28.5 and 2

where T is the time between rising edges of the output signal.

14. Total jitter definition: with an ideal clock input frequency of

≤ f

more than the specified peak-to-peak jitter value.