Micrel, Inc.

SY58609U

August 2007

5

M9999-082907-C

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

AC Electrical Characteristics

(8)

Ω across the outputs; Input t

otherwise stated.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Maximum Frequency

NRZ Data

4.25

Gbps

Clock

2.5

3

GHz

Propagation Delay

IN-to-Q

180

330

450

ps

140

270

370

ps

SEL-to-Q

150

450

ps

Input-to-Input Skew

Note 9, 10

5

20

ps

Part-to-Part Skew

Note 11

150

ps

Data

Random Jitter

Note 12

1

Deterministic Jitter

Note 13

10

Clock

Cycle-to-Cycle Jitter

Note 14

1

Total Jitter

Note 15

10

Output Rise/Fall Times

(20% to 80%)

At full output swing.

35

50

90

ps

Duty Cycle

Differential I/O

47

53

%

Notes:

8.

High-frequency AC-parameters are guaranteed by design and characterization.

9.

Input-to-Input skew is the time difference between the two inputs and one output, under identical input transitions.

9.

Input-to-Input Skew is included in IN-to-Q propagation delay.

11. Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature, same transition edge, and no skew at

the edges at the respective inputs.

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

≤ f

13. 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.

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

≤ f

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