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ADN2841 Datasheet(PDF) 2 Page - Analog Devices

Part # ADN2841
Description  Dual-Loop 50 Mbps.2.7 Gbps Laser Diode Driver
PDF  12 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADN2841 Datasheet(HTML) 2 Page - Analog Devices

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REV. 0
–2–
ADN2841–SPECIFICATIONS
(VCC = 5 V
10%. All specifications TMIN to TMAX unless otherwise noted
1. Typical
values as specified at 25 C.)
Parameter
Min
Typ
Max
Unit
Conditions/Comments
LASER BIAS (BIAS)
Output Current IBIAS
2
100
mA
Compliance Voltage
1.2
VCC
V
IBIAS during ALS
0.1
mA
ALS Response Time
10
µs
CCBIAS Compliance Voltage
1.2
V
MODULATION CURRENT (IMODP, IMODN)
Output Current IMOD
580
mA
Compliance Voltage
1.8
VCC
V
IMOD during ALS
0.1
mA
Rise Time
80
120
ps
Fall Time
80
120
ps
Jitter
20
ps p-p
Pulsewidth Distortion
18
ps
MONITOR PD (MPD, MPD2)
Current
50
1200
µA
Average Current
Input Voltage
1.6
V
POWER SET INPUT (PSET)
Capacitance
80
pF
Input Current
50
1200
µA
Average Current
Voltage
1.15
1.23
1.35
V
EXTINCTION RATIO SET INPUT (ERSET)
Allowable Resistance Range
1.2
25
k
Ω
Voltage
1.15
1.23
1.35
V
ALARM SET (ASET)
Allowable Resistance Range
1.2
25
k
Ω
Voltage
1.15
1.23
1.35
V
Hysteresis
5
%
CONTROL LOOP
Time Constant
0.22
sec
(LBWSET = GND)
2.25
sec
(LBWSET = VCC)
DATA INPUTS (DATAP, DATAN, CLKP, CLKN)
AC-Coupled
2
V p-p (Single-Ended peak-to-peak)
100
500
mV
Input Impedance
50
Ω
tSETUP
3
150
95
ps
tHOLD
3
0
–70
ps
LOGIC INPUTS (ALS, LBWSET, CLKSEL)
VIH
2.4
V
VIL
0.8
V
ALARM OUTPUTS (Internal 30 k
Ω Pull-up)
VOH
2.4
V
VOL
0.8
V
IDTONE
Compliance Voltage
VCC – 1.5
V
User to Supply Current
Sink in the range 50
µA
to 4 mA
2
fIN
4
0.01
1
MHz
I
I
RATIO
OUT
IN





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