10.7Gbps Compact Laser Diode Driver

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3

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Modulation Current-Setting Error

-10

+10

%

Modulation Off-Current

MODSET

0.2

mA

Output Edge Speed

20% to 80% (Notes 1, 4, 6)

25

35

ps

Output Overshoot/Undershoot

δ

(Notes 1, 4, 6)

-15

+15

%

Driver Random Jitter

RJ

Ω (Note 1)

0.3

Driver Deterministic Jitter

DJ

(Notes 1, 7)

9.7

TTL INPUT

Input High Voltage

2.0

V

Input Low Voltage

0.8

V

Input Current

-70

+70

µA

Note 1: Guaranteed by design and characterization using the circuit shown in Figure 1.

Note 2: PSNR = 20

op amp.

× 8Ω).

Note 4: The combined driver AC load (on-chip load and off-chip laser load) is 20

Ω. Measured using a 10.7Gbps repeating

0000 0000 1111 1111 pattern.

Note 6: The maximum allowed inductance per bond wire is 0.4nH for OUT1

Note 7: Deterministic jitter is defined as the arithmetic sum of PWD (pulse-width distortion) and PDJ (pattern-dependent jitter).