sy84782u Micrel Semiconductor, sy84782u Datasheet - Page 4

• Manufacturer Part Number: sy84782u
• Description: Low Power 2.5v 1.25gbps Fp/dfb Laser Diode Driver
• Manufacturer: Micrel Semiconductor

Absolute Maximum Ratings
Supply Voltage (V
Input Voltage (V
TTL Control Input Voltage (V
Lead Temperature (soldering, 20 sec.).................... +260°C
Storage Temperature (T
DC Electrical Characteristics
V
AC Electrical Characteristics
V
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Package Thermal Resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB.
4. Specification for packaged product only.
5. Icc = 30mA (excluding I
6. Assuming V
Micrel, Inc.
Symbol
I
V
R
R
V
V
V
V
Symbol
I
I
t
January 2011
CC
CC
CC
MOD
MOD_OFF
r
, t
MOD_MIN
ID
IH_EN
IL_EN
IM_SET
iIN(DATA)
iIN(IMOD_SET)
10Ω.
f
= 2.5V ±5%, T
= 2.5V ±5%, T
Parameter
Data Rate
Modulation Current
Modulation OFF current
Total Jitter
Pulse-Width Distortion
Output Rise/Fall Times
(20% to 80%)
CC
(15Ω Load)
= 2.375V, laser bandgap voltage = 1V, laser package inductance = 1nH, laser equivalent series resistor = 5Ω, and damping resistor =
IN
Parameter
Power Supply Current
Minimum voltage required at
driver output for proper
operation
Input resistance (DIN+, DIN-)
Input resistance (IM_SET)
Differential Input Voltage Swing
/EN Input High
/EN Input Low
Voltage Range on IM_SET Pin
) .......................................... –0.5V to V
CC
A
A
= –40°C to +85°C. Typical values are V
= –40°C to +85°C. Typical values are V
) .................................. –0.5V to +3.0V
MOD
S
) for worst case conditions with V
) .......................–65°C to +150°C
IN
) ........................... 0V to V
(1)
(4)
(4)
Condition
NRZ Data
AC-Coupled
DC-Coupled
Current at MOD+ when the device
is disabled
@ 1.25Gbps data rate
I
15Ω Load
MOD
Condition
Modulation current excluded
I
range 10mA – 90mA
MOD
CC
range 10mA – 90mA
= 2.625V, T
CC
CC
CC
CC
= 2.5V, T
= 2.5V, T
A
4
Operating Ratings
Supply Voltage (V
Ambient Temperature (T
Package Thermal Resistance
= 85°C, I
Still-Air (θ
Junction-to-Board (Ψ
MOD
A
A
= 25°C, I
= 25°C, I
= 60mA
JA
).......................................................60°C/W
CC
MOD
MOD
0.155
Min
200
Min
0.6
45
10
10
2
) .............................. 2.375V to 2.625V
[e-mail]
= 60mA
= 60mA
A
JB
(2)
) ......................... –40°C to +85°C
).....................................33°C/W
(3)
Typ
Typ
100
24
50
25
2400
Max
30
Max
1.25
70
or [phone]
750
140
0.8
1.2
55
90
20
20
M9999-012411-A
(5)
(6)
SY84782U
mVpp
Units
Units
Gbps
pspp
mA
mA
mA
KΩ
uA
ps
ps
Ω
V
V
V
V