FIN1027 • FIN1027A 3.3V LVDS 2-Bit High Speed Differential Driver
April 2001
Revised June 2003
FIN1027 • FIN1027A
3.3V LVDS 2-Bit High Speed Differential Driver
General Description
This dual driver is designed for high speed interconnects
utilizing Low Voltage Differential Signaling (LVDS) technol-
ogy. The driver translates LVTTL signal levels to LVDS lev-
els with a typical differential output swing of 350 mV which
provides low EMI at ultra low power dissipation even at
high frequencies. This device is ideal for high speed trans-
fer of clock or data.
The FIN1027 or FIN1027A can be paired with its compan-
ion receiver, the FIN1028, or with any other LVDS receiver.
Features
s
Greater than 600Mbs data rate
s
3.3V power supply operation
s
0.5ns maximum differential pulse skew
s
1.5ns maximum propagation delay
s
Low power dissipation
s
Power-Off protection
s
Meets or exceeds the TIA/EIA-644 LVDS standard
s
Flow-through pinout simplifies PCB layout
s
8-Lead SOIC, US8, and 8-terminal MLP
packages save space
Ordering Code:
Order Number
FIN1027M
FIN1027MX
FIN1027K8X
FIN1027MPX
(Preliminary)
FIN1027AM
FIN1027AMX
Package Number
M08A
M08A
MAB08A
MLP08C
M08A
M08A
Package Description
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
[TUBE]
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
[TAPE and REEL]
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide
[TAPE and REEL]
8-Terminal Molded Leadless Package (MLP) Dual, JEDEC MO-229, 2mm Square
[TAPE and REEL]
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
[TUBE]
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
[TAPE and REEL]
© 2003 Fairchild Semiconductor Corporation
DS500501
www.fairchildsemi.com
FIN1027 • FIN1027A
Connection Diagrams
Pin Assignments for SOIC
FIN1027
Pin Assignments for US8
for FIN1027
(Top View)
Pin Assignments for SOIC
FIN1027A
(Top View)
Terminal Assignments for MLP
FIN1027
(Top Through View)
(Top View)
Pin Descriptions
Pin Name
D
IN1
, D
IN2
D
OUT1+
, D
OUT2+
D
OUT1−
, D
OUT2−
V
CC
GND
Description
LVTTL Data Inputs
Non-inverting Driver Outputs
Inverting Driver Outputs
Power Supply
Ground
Function Table
Input
D
IN
L
H
OPEN
H
=
HIGH Logic Level
L
=
LOW Logic Level
X
=
Don’t Care
Outputs
D
OUT+
L
H
L
D
OUT−
H
L
H
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2
FIN1027 • FIN1027A
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
CC
)
DC Input Voltage (D
IN
)
DC Output Voltage (D
OUT
)
Driver Short Circuit Current (I
OSD
)
Storage Temperature Range (T
STG
)
Max Junction Temperature (T
J
)
Lead Temperature (T
L
)
(Soldering, 10 seconds)
ESD (Human Body Model)
ESD (Machine Model)
260
°
C
−
0.5V to
+
4.6V
−
0.5V to
+
6.0V
−
0.5V to
+
4.7V
Continuous
Recommended Operating
Conditions
Supply Voltage (V
CC
)
Input Voltage (V
IN
)
Operating Temperature (T
A
)
3.0V to 3.6V
0 to V
CC
−
40
°
C to
+
85
°
C
−
65
°
C to
+
150
°
C
150
°
C
≥
6500V
≥
400V
Note 1:
The “Absolute Maximum Ratings”: are those values beyond which
damage to the device may occur. The databook specifications should be
met, without exception, to ensure that the system design is reliable over its
power supply, temperature and output/input loading variables. Fairchild
does not recommend operation of circuits outside databook specification.
DC Electrical Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified
Symbol
V
OD
∆V
OD
V
OS
∆V
OS
I
OFF
I
OS
V
IH
V
IL
I
IN
I
I(OFF)
V
IK
I
CC
C
IN
C
OUT
Parameter
Output Differential Voltage
V
OD
Magnitude Change from
Differential LOW-to-HIGH
Offset Voltage
Offset Magnitude Change from
Differential LOW-to-HIGH
Power Off Output Current
Short Circuit Output Current
Input HIGH Voltage
Input LOW Voltage
Input Current
Power-Off Input Current
Input Clamp Voltage
Power Supply Current
Input Capacitance
Output Capacitance
V
IN
=
0V or V
CC
V
CC
=
0V, V
IN
=
0V or 3.6V
I
IK
= −18
mA
No Load, V
IN
=
0V or V
CC
R
L
=
100
Ω,
V
IN
=
0V or V
CC
4
6
−1.5
12.5
17.0
V
CC
=
0V, V
OUT
=
0V or 3.6V
V
OUT
=
0V
V
OD
=
0V
2.0
GND
R
L
=
100
Ω,
See Figure 1
1.125
1.25
Test Conditions
Min
250
Typ
(Note 2)
350
450
25
1.375
25
±20
−8
±8
V
CC
0.8
±20
±20
Max
Units
mV
mV
V
mV
µA
mA
V
V
µA
µA
V
mA
mA
pF
pF
Note 2:
All typical values are at T
A
=
25°C and with V
CC
=
3.3V.
3
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FIN1027 • FIN1027A
AC Electrical Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified
Symbol
t
PLHD
t
PHLD
t
TLHD
t
THLD
t
SK(P)
t
SK(LH)
,
t
SK(HL)
t
SK(PP)
Parameter
Differential Propagation Delay
LOW-to-HIGH
Differential Propagation Delay
HIGH-to-LOW
Differential Output Rise Time (20% to 80%) R
L
=
100
Ω,
C
L
=
10pF,
Differential Output Fall Time (80% to 20%)
Pulse Skew |t
PLH
- t
PHL
|
Channel-to-Channel Skew
(Note 4)
Part-to-Part Skew (Note 5)
See Figure 2 and Figure 3
Test Conditions
Min
Typ
(Note 3)
0.5
0.5
0.4
0.4
1.5
1.5
1.0
1.0
0.5
0.3
1.0
Max
Units
ns
ns
ns
ns
ns
ns
ns
Note 3:
All typical values are at T
A
=
25°C and with V
CC
=
3.3V.
Note 4:
t
SK(LH)
, t
SK(HL)
is the skew between specified outputs of a single device when the outputs have identical loads and are switching in the same direc-
tion.
Note 5:
t
SK(PP)
is the magnitude of the difference in propagation delay times between any specified terminals of two devices switching in the same direction
(either LOW-to-HIGH or HIGH-to-LOW) when both devices operate with the same supply voltage, same temperature, and have identical test circuits.
Note A:
All input pulses have frequency
=
10 MHz, t
R
or t
F
=
2 ns
Note B:
C
L
includes all probe and fixture capacitances
FIGURE 1. Differential Driver DC Test Circuit
FIGURE 2. Differential Driver Propagation Delay and
Transition Time Test Circuit
FIGURE 3. AC Waveforms
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4
FIN1027 • FIN1027A
DC / AC Typical Performance Curves
FIGURE 4. Output High Voltage vs.
Power Supply Voltage
FIGURE 5. Output Low Voltage vs.
Power Supply Voltage
FIGURE 6. Output Short Circuit Current vs.
Power Supply Voltage
FIGURE 7. Differential Output Voltage vs.
Power Supply Voltage
FIGURE 8. Differential Output Voltage vs.
Load Resistor
FIGURE 9. Offset Voltage vs.
Power Supply Voltage
5
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