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3 Gbps lntermediate
Reach Laser Driver
CX02066
The CX02066 is a low-cost 3 Gbps laser driver designed for
short-reach SONET applications. The modulator is capable
of driving modulation currents up to 85 mA. The modulation
current is adjustable by an external resistor. The IC has an
internal temperature compensation circuit for compensating
the temperature characteristic of laser diode slope
efficiency adjusted with an external resistor. External bias
and modulation monitors are provided, as well as safety
alarm functions.
GND
VCC
CLK
CLK
VCC
GND
VCC
DIN
DIN
Vcc
GND
CEN
VCC
OCA
SET
MOD
SET
GND
MPC
SET
TC
SET
GND
TC
ADJ
GND
ENA
DIS
GND
BIAS
MON
MOD
MON
Distinguishing Features
• 3 Gbps at 85 mA
• Mean laser power control
• DC-coupled operation
• Differential PECL inputs
• Temperature compensation of modulation current
• Laser fault fail indicators
• Bias/modulation current monitor output
FAIL
GND
OCA
GND
C
MPC
Vcc
O/P
GND
O/P
Vcc
O/P
Vcc
O/P
GND
O/P
GND
Vcc
• 24-pin BCC++ package
I
BIAS
DOUT
DOUT
IPD
CONEXANT [ CONEXANT SYSTEMS, INC ]
