Test circuits and timing diagrams – Rainbow Electronics MAX3942 User Manual

Page 4

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MAX3942

10Gbps Modulator Driver

4

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Figure 1. Definition of Single-Ended Input Voltage Range

100mV

100mV

800mV

1.0V

0V

-0.5V

-1.0V

0.4V

0V

-0.4V

(a) DC-COUPLED SINGLE-ENDED CML INPUT

(b) AC-COUPLED SINGLE-ENDED (CML OR PECL) INPUT

Figure 2. Setup and Hold Timing Definition

CLK+

CLK-

DATA-

DATA+

(DATA+) - (DATA-)

t

SU

t

HD

I

OUT-

I

OUT+

V

IS

= 0.1V

P-P

TO 1V

P-P

DC-COUPLED
0.1V

P-P

TO 0.8V

P-P

AC-COUPLED

V

ID

= 0.2V

P-P

TO 2V

P-P

DC-COUPLED
0.2V

P-P

TO 1.6V

P-P

AC-COUPLED

I

MOD

= 40mA

P-P

TO 120mA

P-P

NOTE: I

OUT+

AND I

OUT-

RELATE TO RETIMED DATA. SEE FIGURE 3 FOR POLARITY.

Test Circuits and Timing Diagrams

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