X9530 Datasheet, PDF (21/30 Pages) Xicor Inc. – Temperature Compensated Laser Diode Controller

X9530
Figure 20. Typical Laser Driver Circuit Topology
High Speed
Data Input
I_MODSET
I_BIASSET
I_PINSET
Modulation
Currrent
Generation
Bias
Currrent
Generation
Laser Diode Driver Circuit
I_MOD
I_BIASMAX
+
Σ ^{Σ IBIAS +}
+
–
I_APC (Error Signal)
Automatic
Power
Control
(APC)
Figure 21. X9530 Application Example Block Diagram
GBIC / SFP / XFP Module
High Speed
Data Input
XICOR
XDCP
MOD_DEF₍₀₎
MOD_DEF₍₁₎
I_BIASSET
X9530
SDA
SCK
I₁ ^IMODSET
I₂ ^IPINSET
Laser
Diode
Driver
Circuit
V_CC
LD
MPD
I_LD
I_MON
V_CC
LD
MPD
I_LD
I_MON
REV 3.7 8/26/04
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Characteristics subject to change without notice. 21 of 30