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SY88982L Datasheet(Hoja de datos) 4 Page - Micrel Semiconductor

No. de Pieza. SY88982L
Descripción  3.3V, 2.7Gbps High Current, Low Power Laser Driver for FP/DFB Lasers
Descarga  10 Pages
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Fabricante  MICREL [Micrel Semiconductor]
Página de inicio  http://www.micrel.com
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Micrel, Inc.
SY88982L
April 2005
4
M9999-0414505
hbwhelp@micrel.com or (408) 955-1690
Absolute Maximum Ratings(1)
Supply Voltage (VIN) ............................. –0.5V to +4.0V
CML Input Voltage (VIN)............ VCC–1.2V to VCC+0.5V
TTL Control Input Voltage (VIN)..................... 0V to VCC
Lead Temperature (soldering, 20sec.)............. +260°C
Storage Temperature (Ts) .................–65°C to +150°C
Operating Ratings(2)
Supply Voltage (VCC) ............................ +3.0V to +3.6V
Ambient Temperature (TA) ..................–40°C to +85°C
Package Thermal Resistance
(3)
MLF™
( JA) Still-air ................................................ 60°C/W
( JB)............................................................ 33°C/W
DC Electrical Characteristics
T
A = –40°C to +85°C and VCC = +3.0V to +3.6V, unless otherwise noted. Typical values are VCC = +3.3V, TA = 25°C, IMOD
= 60mA.
Symbol
Parameter
Condition
Min
Typ
Max
Units
ICC
Power Supply Current
Modulation currents excluded
48
65
(4)
mA
VMOD_MIN
Minimum Voltage Required at
the Driver Output (headroom) for
Proper Operation
0.6
V
RIN(DATA)
Input Resistance (DIN+, DIN-)
45
50
55
VID
Differential Input Voltage Swing
200
2400
mVpp
/EN Low
0.8
V
/EN High
2V
RIN (IMOD_SET)
IM_SET Input Resistance
25
k
VIM_SET
Voltage Range on IM_SET Pin
IMOD range 10mA to 90mA
1.2
V
AC Electrical Characteristics
T
A = –40°C to +85°C and VCC = +3.0V to +3.6V, unless otherwise noted. Typical values are VCC = +3.3V, TA = 25°C, IMOD
= 60mA.
Symbol
Parameter
Condition
Min
Typ
Max
Units
Data Rate
NRZ
0.155
2.7
Gbps
IMOD
Modulation Current
(5)
AC-coupled
10
90
mA
DC-coupled
10
70
(6)
mA
IMOD_OFF
Modulation OFF Current
Current at MOD+ when the device is
disabled
750
A
tr
Output Current Rise Time
20% to 80%, IMOD = 60mA, 15 load
55
80
ps
tf
Output Current Fall Time
20% to 80%, IMOD = 60mA, 15 load
55
80
ps
Total Jitter
@2.5Gbps data rate
20
psPP
Pulse-Width Distortion
20
ps
Notes:
1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is
not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratings
conditions for extended periods may affect device reliability.
2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
3. Package Thermal Resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB. yJB
uses a 4-layer and qJA in still air unless otherwise stated.
4. ICC = 65mA for worst-case conditions with IMOD = 90mA, TA = +85°C, VCC = 3.6V.
5. Load = 15 .
6. Assuming VCC = 3.0V, Laser bandgap voltage = 1V, laser package inductance = 1nH, laser equivalent series resistor = 5 , and damping
resistor = 10 .




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