M02094-12 Datasheet, PDF (8/46 Pages) M/A-COM Technology Solutions, Inc. – EPON FTTH modules

M02094-12
3.3 or 5 Volt VCSEL/FP Laser Driver IC for Applications to 2 Gbps
Rev V5
1.4
AC Characteristics
(V_CC = 3.05 V to 3.55V or 4.7V to 5.5V, TA = -40 °C to +95 °C, unless otherwise noted)
Typical values for common anode are at V_CC = 3.3 V, IBOUTCA = 20 mA, IMOD = 20 mA, TA = 25 °C, unless oth-
erwise noted.
Typical values for common cathode are at V_CC = 3.3 V, IBOUTCC = 5 mA, IMOD = 5 mA, TA = 25 °C, unless other-
wise noted.
Table 1-4.
Symbol
I_MOD
AC Characteristics
Parameter
Modulation current adjust range
Conditions
Common Cathode Mode
OUT+ and OUT- AC coupled into 50Ω load.
Min. Typ. Max. Units.
1
–
15
mA
Common Anode Mode
3
OUT+ and OUT- DC coupled into 25Ω load.⁽¹⁾
I_MOD(OFF)(2) Modulation current with output disabled DIS = high
–
Ratio of modulation current to MOD_MON CC_SEL = high, RLOAD = 50Ω
–
current
CC_SEL = low
I_MOD-TC
Programmable range for modulation Adjustable using TC_SLOPE
0
current temperature coefficient
T_TCSTART
Temperature at which modulation current
TC compensation enables
tr
Modulation output rise time
20% to 80% into 25 Ω⁽³⁾. For I_MOD from 3 mA to 30 –
mA. Measured using 11110000 pattern at 2.5 Gbps
tf
Modulation output fall time
–
OS_OFF
Overshoot of modulation output current in into 25 Ω load
--
the “off” direction
RJ
Random jitter
DJ
Deterministic jitter
–
Measured into 25Ω load, 2³¹ - 1 PRBS at 2.0
Gbps
45
–
150
µA
30
–
A/A
65
–
10⁴
ppm/°C
20
°C
110
140
ps
110
140
ps
1
2
%
1.2
–
ps_rms
ps_pp
20
45
K28.5 pattern at 2.0 Gbps
20
45
(includes pulse width distortion)
Notes:
1. Minimum voltage at OUT+ > 0.7V.
2. The current through the laser in this state can be made negligible by adding a 1kΩ or less resistor in parallel with the laser.
3. The M02094 is designed to drive 25Ω loads. External resistance should be added in series or parallel to the Laser to create this load impedance. In common
cathode mode, 50Ω resistors internal to the M02094 are in parallel with the laser.
8
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