MAX3643
155Mbps to 2.5Gbps Burst-Mode Laser Driver
Typical Operating Characteristics
(Typical values are at VCC = 3.3V, TA = +25°C, data pattern = 27-1 PRBS + 80 ones + 27-1 PRBS + 80 zeros, unless otherwise
noted.)
OPTICAL EYE DIAGRAM
(155.52Mbps, 117MHz FILTER,
PATTERN = 223 - 1 PRBS)
MAX3643 toc01
OPTICAL EYE DIAGRAM
(622.08Mbps, 467MHz FILTER,
PATTERN = 223 - 1 PRBS)
MAX3643 toc02
OPTICAL EYE DIAGRAM
(1.24416Gbps, 933MHz FILTER,
PATTERN = 223 - 1 PRBS)
MAX3643 toc03
EXCELIGHT SLT2886-LR LASER
AVERAGE OPTICAL POWER = -6dBm
EXTINCTION RATIO = 15dB
MASK MARGIN = 49%
OPTICAL EYE DIAGRAM
(2.48832Gbps, 2.3GHz FILTER,
PATTERN = 223 - 1 PRBS)
MAX3643 toc04
EXCELIGHT SLT2886-LR LASER
AVERAGE OPTICAL POWER = -6dBm
EXTINCTION RATIO = 10dB
MASK MARGIN = 18%
EXCELIGHT SLT2886-LR LASER
AVERAGE OPTICAL POWER = -6dBm
EXTINCTION RATIO = 15dB
MASK MARGIN = 45%
ELECTRICAL EYE DIAGRAM
(2.5Gbps, IMOD = 30mA,
PATTERN = PRBS 27 - 1 + 80 CID)
MAX3643 toc05
100ps/div
EXCELIGHT SLT2886-LR LASER
AVERAGE OPTICAL POWER = -6dBm
EXTINCTION RATIO = 14dB
MASK MARGIN = 38%
SUPPLY CURRENT vs. TEMPERATURE
(IBIAS = 20mA, IMOD = 30mA)
60
55
EXCLUDES BIAS AND
MODULATION CURRENT
50
45
40
35
30
25
20
15
10
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
Maxim Integrated
5