1
PS8422B 09/15/04
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3V LVDS High-Speed
Differential Line Drivers
Features
Signaling Rates >400Mbps (200 MHz)
Single 3.3V Power Supply Design
350mV Differential Swing
Maximum Differential Skew of 0.4ns
Maximum Propagation Delay of 2.0ns
Maximum Power Dissipation: 25mW
@ 200 MHz/driver
Low Voltage TTL (LVTTL) Inputs
Industrial Temperature Operating Range:
-40C to 85C
Meets or Exceeds IEEE 1596.3
SCI LVDS Standard
Meets or Exceeds ANSI/TIA/EIA-644
LVDS Standard
Packaging (Pb-free & Green available):
PI90LV017A & PI90LV027A
- 8-pin SOIC (W)
- 8-pin MSOP (U)
PI90LV031A
- 16-pin SOIC (W)
- 16-pin TSSOP (L)
Description
The PI90LV031A, PI90LV027A, and PI90LV017A are differential
line drivers that use low-voltage differential signaling (LVDS) to
support data rates in excess of 400 Mbps. These products are
designed for applications requiring high-speed, low-power con-
sumption and low noise generation.
A low voltage TTL/CMOS input level is translated by the device
into a low-voltage (350mV) differential output signal. Exclusive to
the PI90LV031A quad driver is a power-down mode that 3-states
the outputs and places the device in a low-power idle state (13mW
typical).
Applications
Applications include point-to-point and multidrop baseband data
transmission over controlled impedance media of approximately
100 ohms. The transmission media can be printed circuit board
traces, backplanes, or cables.
The PI90LV031A, PI90LV027A, PI90LV017A and companion line
receivers (PI90LV032A, PI90LV028A, and PI90LV018A) provide
new alternatives to RS-232, PECL, and ECL devices for high-speed,
point-to-point interface applications.
PI90LV031A
PI90LV027A
PI90LV017A
D
IN1
V
CC
EN*
D
IN4
D
IN3
D
OUT4+
D
OUT3+
D
OUT4-
D
OUT3-
D
IN2
EN
GND
D
OUT1+
D
OUT2+
D
OUT1-
D
OUT2-
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PI90LV031A
PI90LV027A
PI90LV017A
D
OUT1-
V
CC
D
OUT1+
D
OUT2+
D
OUT2-
GND
D
IN1
D
IN2
1
2
3
4
8
7
6
5
D
IN1
D
IN2
D
OUT1+
D
OUT1-
D
OUT2+
D
OUT2-
D1
D2
V
CC
D
NC
NC
GND
D
NC
1
2
3
4
8
7
6
5
16-Pin
L,W
8-Pin
U,W
8-Pin
U,W
2
PS8422B 09/15/04
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PI90LV031A / PI90LV027A / PI90LV017A
3V LVDS High-Speed Differential Line Drivers
Function Tables
Pin Descriptions
s
e
l
b
a
n
E
t
u
p
n
I
s
t
u
p
t
u
O
N
E
N
E
D
N
I
D
+
T
U
O
D
T
U
O
H
X
H
H
L
H
X
L
L
H
X
L
H
H
L
X
L
L
L
H
L
H
X
Z
Z
PI90LV031A
PI90LV027A
t
u
p
n
I
s
t
u
p
t
u
O
D
N
I
D
+
T
U
O
D
-
T
U
O
H
H
L
L
L
H
t
u
p
n
I
s
t
u
p
t
u
O
D
N
I
D
+
T
U
O
D
-
T
U
O
H
H
L
L
L
H
PI90LV017A
e
m
a
N
n
o
i
t
p
i
r
c
s
e
D
D
N
I
s
n
i
p
t
u
p
n
i
r
e
v
i
r
d
S
O
M
C
/
L
T
T
D
+
O
s
n
i
p
t
u
p
t
u
o
r
e
v
i
r
d
g
n
it
r
e
v
n
i
-
n
o
N
D
O
s
n
i
p
t
u
p
t
u
o
r
e
v
i
r
d
g
n
it
r
e
v
n
I
D
N
G
n
i
p
d
n
u
o
r
G
V
C
C
%
0
1
V
3
.
3
+
,
n
i
p
y
l
p
p
u
s
r
e
w
o
p
e
v
it
i
s
o
P
Recommended Operating Conditions
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
e
g
a
tl
o
V
y
l
p
p
u
S
V
(
C
C
)
0
.
3
+
3
.
3
+
6
.
3
+
V
ri
A
e
e
r
F
g
n
it
a
r
e
p
O
e
r
u
t
a
r
e
p
m
e
T
0
4
5
2
+
5
8
+
C
Supply Voltage (V
CC
) ........................................... 0.3V to +4.0V
Input Voltage (D
IN
) .................................... 0.3V to (V
CC
+0.3V)
Enable Input Voltage (EN, EN*) ................. 0.3V to (V
CC
+0.3V)
Output Voltage (D
OUT+
, D
OUT-
) ......................... 0.3V to +3.9V
Short Circuit Duration
(D
OUT+
, D
OUT-
) ..................................................... Continuous
S Package ........................................................................ 750mW
Derate S Package .................................... 8.5mW/C above +25C
Storage Temperature Range ............................... -65C to +150C
Lead Temperature Range Soldering (4s) .......................... +260C
Maximum Junction Temperature ...................................... +150C
ESD Rating ..........................................................................
6kV
Note:
Stresses greater than those listed under Absolute Maximum Rat-
ings may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any
other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reliability.
Absolute Maximum Ratings
(see Note 1, Page 4)
3
PS8422B 09/15/04
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12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PI90LV031A / PI90LV027A / PI90LV017A
3V LVDS High-Speed Differential Line Drivers
l
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=
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5
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2
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o
0
1
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1
0
1
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=
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,
D
N
G
=
N
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C
C
6
.
2
0
.
6
Electrical Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified. (Notes 2,3,4)
4
PS8422B 09/15/04
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PI90LV031A / PI90LV027A / PI90LV017A
3V LVDS High-Speed Differential Line Drivers
Switching Characteristics
V
CC
= +3.3V 10%, T
A
= -40C to +85C (Notes 3,9,11)
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t
PHLD
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SKD
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PHLD
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SKD
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SKD
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SKD
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THL
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PHZ
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F
p
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&
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t
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7
t
PZL
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7
t
MAX
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M
Notes:
1.
"Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply
that the devices should be operated at these limits. The table of "Electrical Characteristics" specifies conditions of device operation.
2.
Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except:
V
OD1
and
V
OD1
.
3.
All typicals are given for: V
CC
= +3.3V, T
A
= +25C.
4.
The PI90LV031A/PI90LV027A/PI90LV017A are current mode devices and only functions within datasheet specifications when a resistive
load is applied to the driver outputs typical range is (90
to 110
).
5.
t
SKD
1, It
PHLD
- t
PLHD
I is the magnitude difference in differential propagation delay time between the positive going edge and the negative
going edge of the same channel.
6.
t
SKD
2 is the Differential Channel-to-Channel Skew of any event on the same device.
7.
t
SKD
3, Differential Part-to-Part Skew, is defined as the difference between the minimum and maximum specified differential propagation
delays. This specification applies to devices at the same Vcc and with 5C of each other within the operating temperature range.
8.
t
SKD
4, Part-to-Part Skew, is the differential Channel-to-Channel skew of any event between devices. This specification applies to devices
over recommended operating temperature and voltage ranges, and across process distribution. t
SKD
4 is defined as
IMax - MinI differential propagation delay.
9.
Generator waveform for all tests unless otherwise specified: f = 1 MHz, Z
O
= 50
, tr
1ns, and t
f
1ns.
10. Output short circuit current (I
OS
) is specified as magnitude only, minus sign indicates direction only.
11. C
L
includes probe and jig capacitance.
12. All input voltages are for one channel unless otherwise specified. Other inputs are set to GND.
13. f
MAX
generator input conditions: t
R
= t
F
< 1ns, (0% to 100%), 50% duty cycle, 0V to 3V.
Output Criteria: duty cycle = 45%/55%, V
OD
> 250mV, all channels switching.
5
PS8422B 09/15/04
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12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PI90LV031A / PI90LV027A / PI90LV017A
3V LVDS High-Speed Differential Line Drivers
Parameter Measurement Information
Figure 1. Driver V
OD
and V
OS
Test Circuit
Figure 2. Driver Propagation Delay and Transition Time Test Circuit
V
OS
R
L
/2
R
L
/2
S1
V
CC
D
IN
GND
D
D
OUT-
Driver ENABLED
D
OUT+
V
OD
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