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Test circuits and timing diagrams (continued) – Rainbow Electronics MAX3941 User Manual

Page 5

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MAX3941

10Gbps EAM Driver with Integrated

Bias Network

_______________________________________________________________________________________

5

Figure 3. Setup and Hold Timing Definition

V

IS

= 0.1V

P-P

TO 1V

P-P

DC-COUPLED

V

ID

= 0.2V

P-P

TO 2V

P-P

DC-COUPLED

I

MOD

= 40mA

P-P

TO 120mA

P-P

I

BIAS

= 0mA TO 50mA

V

IS

0.1V

P-P

TO 0.8V

P-P

AC-COUPLED

0.2V

P-P

TO 1.6V

P-P

AC-COUPLED

CLK+

CLK-

DATA-

DATA+

(DATA+) -

(DATA-)

I

OUT

NOTE: I

OUT

RELATES TO RETIMED DATA.

t

SU

t

HD

Figure 4. AC-Characterization Circuit

50

50

50

50

50

50

R

OUT

50

50

PATTERN

GENERATOR

CLK+

CLK-

DATA-

DATA+

50

50

0

1

M

U
X

D Q

P

W

C

I

MOD

I

OUT

V

EE

V

EE

V

EE

V

EE

MODSET

I

BIAS

V

MODSET

V

BIASSET

BIASSET

-5.2V

0.1

µF

300pF

Z

L

OUT

OSCILLOSCOPE

GND

PWC+

RTEN

PWC-

GND

GND2

V

EE

50

50

50

GND1

Test Circuits and Timing Diagrams (continued)