10.7Gbps Laser Diode Drivers

8

_______________________________________________________________________________________

50

Ω

MOD1

MOD2

OSCILLOSCOPE

DATA-

DATA+

CLK-

RTEN

1.2V

CLK+

50

Ω

50

Ω

50

Ω

50

Ω

DATA+

DATA-

CLK+

CLK-

PATTERN

GENERATOR

-5V

-2V

33

Ω

50

Ω

20

Ω

EQUIVALENT

CIRCUIT

-5V

MAX3930/

MAX3932

MODN1

MODN2

+

-

MODEN

-5V

Figure 1. Test Circuit

Figure 2. Required Input Signal, Setup/Hold Time Definition, and Output Polarity

CLK+

CLK-

DATA-

DATA+

(DATA+) - (DATA-)

20mA - 100mA