(VCC = 3.0 V to 3.6 V, All specifications TMIN to TMAX, unless otherwise noted. Typical
ADN2843–SPECIFICATIONS values as specified at 25ꢂC.)
Parameter
Min
Typ
Max
Unit
Conditions
LASER BIAS (BIAS)
Output Current IBIAS
Compliance Voltage
3
80
mA
V
ꢀA
ꢀs
1.2
VCC – 1.0
I
BIAS during ALS
10
10
See Note 1
See Note 2
ALS Shutdown Response Time
MODULATION CURRENT (IMODP, IMODN)
Output Current IMOD
Compliance Voltage
5
1.2
80
VCC
10
mA
V
ꢀA
ps
ps
I
MOD during ALS
Rise Time
25
23
Fall Time
Random Jitter
Total Jitter
170
7.41
fs rms
ps p-p
See Note 3
See Note 4
POWER SET INPUT (PSET)
External Capacitance
Voltage
80
1.35
pF
V
See Note 5
1.15
EXTINCTION RATIO SET INPUT (ERSET)
Allowable Resistance Range
Voltage
1.5
1.15
25
1.35
kꢁ
V
ALARM SET (ASET)
Allowable Resistance Range
Voltage
1.2
1.15
13.2
1.35
kꢁ
V
%
Hysteresis
5
CONTROL LOOP
Time Constant
0.22
s
DATA INPUTS (DATAP, DATAN)
V p-p (Single-Ended Peak-to-Peak)
Input Impedance (Single-Ended)
300
2.4
2.4
800
mV
50
ꢁ
LOGIC INPUTS (ALS, MODE)
VIH
VIL
V
V
0.8
0.4
ALARM OUTPUTS (Internal 30 k to VCC
VOH
VOL
)
V
V
IDTONE
fIN
10
1000
4000
kHz
ꢀA
V
Input Current Range
Voltage on IDTONE
50
VCC – 2
MONITOR PD (MPD, MPD2)
Current
Input Voltage
50
1200
1.65
ꢀA
V
IBMON, IMMON, IMPDMON, IMPDMON2
IBMON, IMMON Division Ratio
IMPDMON, IMPDMON2
IMPDMON to IMPDMON2 Matching
Compliance Voltage
100
1
A/A
A/A
%
2
Measured at 1200 ꢀA
0
VCC – 1.5
V
SUPPLY
VCC
3.0
3.3
75
3.6
36
V
mA
mA
I
CC (ADN2844)
See Note 6
See Note 6
ICC (ADN2845)
NOTES
1In ALS mode current is sourced to the laser from the IBIAS pin, which reverse biases the laser.
2The ADN2845 high speed specifications are measured into a 5 ꢁ load.
3RMS jitter measured with a 0000 0000 1111 1111 repeating pattern at 10.7 Gbps rate.
4Peak-to-peak total jitter measured with a 213 – 1 PRBS with 80 CIDs pattern at 10.7 Gbps rate.
5Max capacitance refers to capacitance of photodiode and other parasitic capacitance.
6IBIAS = 0, IMOD = 0 (when ALS is asserted). See Power Dissipation section on page 7 for calculation of complete power dissipation.
Specifications subject to change without notice.
–2–
REV. 0