iC-HB
TRIPLE 155 MHz LASER SWITCH
Rev A4, Page 1/8
FEATURES
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Laser switch for frequencies from CW up to 155 MHz
Spike-free switching of the laser currents
Three channels with independent current control at pins CIx
Operates as a voltage-controlled current sink
LVDS/TTL switching inputs with TTL monitor outputs
Pulsed operation with up to 300 mA per channel
CW operation with up to 65 mA per channel
Laser current monitor output
Thermal shutdown with open drain error output
Protective ESD circuitry
APPLICATIONS
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Laser printers
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Data transmission
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Laser scanning devices
PACKAGES
QFN24
4 mm x 4 mm
BLOCK DIAGRAM
IMON LDK1 LDK2 LDKB VDD VTTL
CIB
IKB
iC−HB
CI2
IK2
1k
LVDS/TTL
SYNB
ENB
EPB
1k
SYN2
EN2
EP2
CI1
LVDS/TTL
IK1
1k
SYN1
EN1
EP1
NER
LVDS/TTL
OVERTEMP
SHUTDOWN
TTL
AGND1 AGND2
AGNDB GND
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ICHAUS [ IC-HAUS GMBH ]
