+3.3V, 2.5Gbps SDH/SONET Laser Driver
with Automatic Power Control
DATA+
DATA-
(DATA+) - (DATA-)
IOUT+
100mV MIN
800mV MAX
200mVp-p MIN
1600mVp-p MAX
IMOD
Figure 1. Required Input Signal and Output Polarity
VCC
A
A
A, B ARE SMD FERRITE BEADS
B = BLM11A601S MURATA ELECTRONICS
A = BLM21A102S MURATA ELECTRONICS
B
B
MAX3867
OUT-
*
0.5pF
OUT+
BIAS
15Ω
25Ω
0.056µF
0.056µF
OSCILLOSCOPE
50Ω
50Ω
VCC
* TO COMPENSATE PACKAGE LEADS, NOT USED FOR DIE.
Figure 2. Output Termination for Characterization
CLK
tSU
DATA
tCLK = 402ps
tH
Figure 3. Setup/Hold Time Definition
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