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MAX3643ETG+ Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX3643ETG+
Description  155Mbps to 2.5Gbps Burst-Mode Laser Driver
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX3643ETG+ Datasheet(HTML) 4 Page - Maxim Integrated Products

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155Mbps to 2.5Gbps Burst-Mode Laser Driver
4
_______________________________________________________________________________________
Note 1:
DC parameters are production tested at TA = +25°C, guaranteed by design and characterization at TA = -40°C.
AC parameters are guaranteed by design and characterization.
Note 2:
For 10mA
≤ IMOD ≤ 85mA and 4mA ≤ IBIAS ≤ 70mA.
Note 3:
Deterministic jitter measured with a continuous pattern of 27-1 PRBS, 80 ones, 27-1 PRBS, 80 zeros at 1.25Gbps, and both
LVPECL inputs terminated by the network shown in Figure 3.
Note 4:
Random jitter, rise time, fall time measured with 0000011111 pattern at 1.25Gbps.
Note 5:
Voltage difference between VMSET and MODSET or VBSET and BIASSET excluding IR drops. The maximum operating
voltage at VMSET or VBSET must be less than 1.4V for proper operation.
Note 6:
Turn-on/-off time is when the BEN+/BEN- LVPECL inputs are used to control modulation and bias currents.
Note 7:
Burst-enable delay is measured between the time at which the rising edge of the differential burst-enable input reaches the
midpoint, and the time at which the combined output currents (bias plus modulation) reach 90% of their final level.
Note 8:
Burst-disable delay is measured between the time at which the falling edge of the differential burst-enable input reaches the
midpoint, and the time at which the combined output currents (bias plus modulation) fall below 10% of the bias-on current.
Note 9:
Droop measured with sample/hold output load of 10M
Ω.
Note 10: Enable delay is measured between the time at which the falling edge of the EN input reaches
≤ 0.8V, and the time at which
the combined output currents (bias plus modulation) reach 90% of their final level.
Note 11: Disable delay is measured between the time at which the rising edge of the EN input reaches
≥ 2V, and the time at which
the combined output currents (bias plus modulation) fall below 10% of the bias-on current.
Note 12: Excelight SLT2886-LR laser.
Note 13: Current gain stability = [(Gain – nominal Gain) / nominal Gain], nominal Gain at VCC = 3.3V, TA = +25°C.
Note 14: Gain linearity = (Gainmax – Gainmin), Gainavg = Gainmax + Gainmin
Gainavg
2
Note 15: Gain matching =
, nominal at VCC = 3.3V, TA = +25°C.
mod /
mod
/
mod
/
Gain
Gainbias
Gain
nom
Gainbiasnom
Gain
nom
Gainbiasnom
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.0V to 3.6V, TA = -40°C to +85°C. Typical values are at VCC = 3.3V, TA = +25°C, IBIAS = 20mA, IMOD = 30mA, unless other-
wise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Sampling Error
Final value measured after 10µs
(MDOUT - MDIN), burst width > 576ns
3
±14
mV
BANDGAP VOLTAGE REFERENCE SPECIFICATIONS
VREF Output
RL > 10k , CL < 50pF
1.175
1.235
1.295
V
MODULATION/BIAS CURRENT DISABLE
Enable Time
5mA < IBIAS, 10mA < IMOD (Note 10)
5.5
µs
Disable Time
(Notes 2, 11)
375
ns
RIMAX Range
3
15
k
RIMAX = 3k
155
RIMAX = 5k
100
150
Current Limit (Tested with IBIAS
= IMOD)
IBIAS+IMOD
RIMAX = 10k
50
75
mA
OPTICAL EVALUATION
155.52Mbps
49
622.08Mbps
45
1.24416Gbps
38
Eye Margin (Note 12)
2.48832Gbps
18
%


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