Micrel, Inc.

SY56020XR

February 2010

5

M9999-020210-A

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

CML Outputs DC Electrical Characteristics

(6)

Ω to V

Ω to V

Ω across the outputs.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Output HIGH Voltage

V

Output Voltage Swing

See Figure 3a

300

390

475

mV

Differential Output Voltage Swing

See Figure 3b

600

780

950

mV

Output Source Impedance

45

50

55

Ω

Three Level EQ Input DC Electrical Characteristics

(6)

Symbol

Parameter

Condition

Min

Typ

Max

Units

Input HIGH Voltage

V

Input LOW Voltage

0

V

Input HIGH Current

400

µA

Input LOW Current

-480

µA

AC Electrical Characteristics

Ω to V

Ω to V

Ω across the outputs.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Maximum Frequency

NRZ Data

6.4

Gbps

4.5

GHz

Propagation Delay (IN-to-Q)

Note 7, Figure 1

120

200

300

ps

Output-to-Output Skew

Note 8

3

15

ps

Part-to-Part Skew

Note 9

100

ps

Data Random Jitter

Note 10

0.8

Data Deterministic Jitter

Note 11

10

Output Rise/Fall Time

(20% to 80%)

At full output swing.

30

60

100

ps

Duty Cycle

Differential I/O

45

55

%

Notes:

6.

The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.

7.

Propagation delay is measured with no attenuating transmission line connected to the input.

8.

Output-to-Output skew is the difference in time between both outputs under identical input transition, temperature and power supply

9.

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.

10. Random jitter is additive jitter.

11. Deterministic jitter is measured with 2