Micrel, Inc.

SY89473U

May 2007

6

M9999-052207-B

AC Electrical Characteristics

(7)

Symbol

Parameter

Condition

Min

Typ

Max

Units

NRZ Data

2.5

3.2

Gbps

Maximum Operating Frequency

Clock

2.5

3.0

GHz

Differential Propagation Delay

In-to-Q

250

320

500

ps

SEL-to-Q

250

360

600

ps

Tempco

Differential Propagation Delay

Temperature Coefficient

158

fs/

Output-to-Output Skew

Note 8

5

20

ps

Part-to-Part Skew

Note 9

200

ps

Clock

Random Jitter

Note 10

1

Cycle-to-Cycle Jitter

Note 11

1

Total Jitter (TJ)

Note 12

10

Crosstalk-Induced Jitter

Note 13

0.7

Output Rise/Fall Time (20% to 80%)

At full output swing.

70

130

190

ps

Notes:

7.

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

8.

Output-to-output skew is measured between two different outputs under identical transitions.

9.

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

the respective inputs.

output signal.

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

13. Crosstalk is measured at the output while applying two similar differential clock frequencies that are asynchronous with respect to each

other at the inputs.