September 1998
ML6633*
High Speed Fiber Optic LED Driver
GENERAL DESCRIPTION
The ML6633 is a high speed fiber optic LED driver suited
for networking applications up to 200 Mbps. The part is
capable of driving up to 82mA of current through a fiber
optic LED from an ECL level input signal. Its efficient
output stage provides a high current that can be
programmed for accurate absolute output level which
insures precise launch power.
The LED driver鈥檚 output stage provides a fast well
matched rise and fall time through a unique differential
output stage.
The ML6633 high speed fiber optic LED driver is
implemented in BiCMOS process and is available in an
8-pin SOIC package.
FEATURES
n
Data rates up to 200Mbps
n
Current driven output for accurate launch power
n
Programmable output current from 20mA to 82mA
n
High Efficiency Output Stage
n
Low EMI/RFI Noise
n
ECL inputs
n
Industrial temperature version available
n
May be used with ML6622 quantizer
APPLICATIONS
n
FDDI
n
Fast Ethernet, 100BASE-FX
n
ATM (SONET), 155Mbps
n
Proprietary high-speed fiber optic data links
BLOCK DIAGRAM
*Some Packages Are Obsolete
ECLP
2
ECLN
3
8
V
CC
+
BUFFER
鈥?/div>
+
DRIVER
鈥?/div>
IOUT
7
RTSET
6
REF
GND
5
1
1
2
3
4
5
