M02069 Datasheet, PDF (7/44 Pages) M/A-COM Technology Solutions, Inc. – 3.3 or 5 Volt VCSEL/FP Laser Driver IC for Applications to 4.3 Gbps

Product Specification
Table 1-4. AC Characteristics
Symbol
Parameter
Conditions
Min. Typ. Max. Units.
tr
Modulation output rise time
tf
Modulation output fall time
20% to 80% into 25 Ω⁽³⁾. For I_MOD from 3 mA
–
67
80
ps
to 30 mA. Measured using 11110000 pattern
at 2.5Gbps.
–
67
80
ps
OS_OFF
Overshoot of modulation output
current in the “off” direction
into 25 Ω load
--
1
2
%
RJ
Random jitter
DJ
Deterministic jitter
K28.5 pattern at 4.3 Gbps
(includes pulse width distortion)
–
0.8
–
ps_rms
10
23
ps_pp
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 M02069 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 M02069 are in parallel with the laser..
1.5
Safety Logic Timing
(V_CC = 3.05 V to 3.55V or 4.7V to 5.5V, T_A = -40 °C to +95 °C, unless otherwise noted)
Typical values for common anode are at V_CC = 3.3 V, IBOUT_CA = 20 mA, I_MOD = 20 mA, T_A = 25 °C, unless otherwise noted.
Typical values for common cathode are at V_CC = 3.3 V, IBOUT_CC = 5 mA, I_MOD = 5 mA, T_A = 25 °C, unless otherwise noted.
Table 1-5. Safety Logic Timing
Symbol
Parameter
Conditions
t_off
DIS assert time
Rising edge of DIS to fall of output signal
below 10% of nominal⁽¹⁾
t_on
t_init
DIS negate time
Time to initialize⁽²⁾
Falling edge of DIS to rise of output signal
above 90% of nominal⁽¹⁾
Includes reset of FAIL; from power on after
Supply_OK or from negation of DIS during
reset of FAIL condition
t_fault
Laser fault time - from fault condition From occurrence of fault condition or when
to assertion of FAIL
Supply_OK is beyond specified range
t_reset
DIS time to start reset
DIS or ENA pulse width required to initialize
safety circuitry or reset a latched fault
t_on_BM
DIS negate (turn-on) time during
burst-mode operation
Using integrated switch at SVCC (3.3V
operation) ⁽⁴⁾
t_off_BM
DIS assert (turn-off) time during
burst-mode operation
Using integrated switch at SVCC (3.3V
operation)⁽⁴⁾
Notes:
1. With CAPC = 2.2nF
2. User-adjustable. Specifications reflect timing with no external RESET capacitor.
3. With < 1nF capacitor from RESET pin to ground.
4. Imod > 12mA
Min. Typ. Max. Units.
10
µs
1
ms
2
3
5
ms
100
µs
10⁽³⁾
µs
300 500
ns
200 500
ns
02069-DSH-001-D
Mindspeed Technologies™
7
Mindspeed Proprietary and Confidential