Micrel, Inc.

SY89113U

December 2007

M9999-120607

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

7

AC Electrical Characteristics

(8)

Ω across the output pair, unless otherwise stated.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Maximum Operating Frequency

≥ 200mV

1

GHz

Propagation Delay

CLK0-to-Q

CLK1-to-Q

CLK_SEL-to-Q

≥ 100mV

625

750

975

ps

≥ 200mV

700

900

1200

ps

500

700

900

ps

Tempco

Differential Propagation Delay Temperature

Coefficient

90

fs/

Set-up Time

EN-to-CLK0

EN-to-CLK1

Note 9

100

ps

Note 9

0

ps

Hold Time

CLK0-to-EN

CLK1-to-EN

Note 9

500

ps

Note 9

600

ps

Output-to-Output Skew

Note 10

25

ps

Part-to-Part Skew CLK0

Part-to-Part Skew CLK1

Note 11

200

ps

Note 11

250

ps

Cycle-to-Cycle Jitter

Note 12

1

Random Jitter (RJ)

Note 13

1

Total Jitter (TJ)

Note 14

10

Adjacent Channel Crosstalk-induced Jitter

Note 15

0.7

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

At full output swing.

80

150

250

ps

Notes:

8.

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

9.

Set-up and hold times apply to synchronous applications that intend to enable/disable before the next clock cycle. For asynchronous

applications, set-up and hold do not apply.

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

11. 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.

than the specified peak-to-peak jitter value.

15. Crosstalk-induced jitter is defined as: the added jitter that results from signals applied to two adjacent channels. It is measured at the output

while applying two similar, differential clock frequencies that are asynchronous with respect to each other at the inputs.