10Gbps EAM Driver with Integrated

Bias Network

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. Modulating BIASSET and MODSET pads

0V

(a) MODULATING BIASSET

0V

(c) RESULT OF MODULATING BIASSET

AND MODSET 180

° OUT OF PHASE

(d) RESULTING OPTICAL OUTPUT

0V

(b) MODULATING MODSET

NOTE: ALL AMPLITUDES ARE RELATIVE

Test Circuits and Timing Diagrams