PI90LV387A [PERICOM]
High-Speed Differential Line Drivers; 高速差分线路驱动器
| 型号： | PI90LV387A |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | High-Speed Differential Line Drivers |
| 文件： | 总7页 (文件大小：369K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI90LV387/ PI90LVB387
High-Speed Differential Line Drivers
Features
Description
• Sixteen line drivers meet or exceed the requirements of the
ANSI EIA/TIA-644 Standard
PI90LV387/ PI90LVB387 consists of sixteen differential line
drivers that implement the electrical characteristics of low-volt-
age differential signaling (LVDS). This signaling technique lowers
output voltage levels to reduce power, increase switching speeds,
and allow operation with a 3V supply rail.
• Designed for signaling rates up to 500 Mbps with very low
radiation (EMI)
• Low voltage differential signaling with typical output voltage
of 350mV into :
The intended application of this device and signaling technique
is for point-to-point baseband (single termination) and multi-
point (double termination) data transmission over a controlled
impedance media of approximately 100Ω and 50Ω (LVB387).
The transmission media may be printed-circuit board traces, back-
planes, or cables. The large number of drivers integrated into the
same substrate, with the low pulse skew of balanced signaling,
allows extremely precise timing alignment of clock and data for
synchronous parallel data transfers. When used with its companion
16-channel receivers, the PI90LV386 or PI90LVT386, over 400
million data transfers per second in single-edge clocked systems
are possible with very little power.
– 100Ω load (PI90LV387)
– 50Ω load (PI90LVB387)
• Propagation delay times less than 2.6ns
• Output skew is less than 150ps
• Part-to-part skew is less than 1.5ns
• 35mW total power dissipation in each driver operating at 200
MHz
• Bus-pin ESD protection exceeds 10kV
• Low voltage TTL (LVTTL) logic inputs are 5V tolerant
• Packaging (Pb-free & Green available):
-64-Pin TSSOP (A)
(Note: The ultimate rate and distance of data transfer is dependent
upon attenuation characteristics of the media, the noise coupling
to the environment, and other system characteristics.)
Pin Diagram
GND
VCC
1
2
3
4
5
6
7
8
9
10
64
63
62
61
1DO1+
1DO1 –
1DO2+
1DO2 –
The drivers are enabled in groups of five. When disabled, driver
VCC
outputs are at a high impedance. Each driver input (D ) and en-
IN
GND
able (EN) have an internal pulldown that drives the input to a low
level when open circuited.
EN1
60 1DO3+
59
58 1DO4+
57
1DIN1
1DIN2
1DIN3
1DIN4
EN2
1DO3 –
The parts are characterized for operation from –40°C to 85°C.
1DO4 –
56 2DO1+
55 2DO1 –
2DIN1 11
2DIN2 12
2DIN3 13
2DIN4 14
54
53
52
2DO2+
2DO2–
2DO3+
Block Diagram
64-Pin
A
51 2DO3 –
50
49 2DO4 –
48
47 3DO1 –
46
45 3DO2 –
DO1+
DIN1
15
VCC 16
VCC
GND
2DO4+
DO1–
17
3DO1+
GND 18
3DIN1 19
3DIN2 20
3DIN3 21
3DIN4 22
EN3 23
3DO2+
DO2+
DIN2
44
43
42
41
40
39
37
37
36
35
34
33
3DO3+
3DO3 –
3DO4+
3DO4 –
4DO1+
4DO1 –
4DO2+
4DO2 –
4DO3+
4DO3 –
4DO4+
4DO4 –
DO2–
EN
DO3+
4DIN1 24
DIN3
25
26
27
28
29
30
31
32
DO3–
4DIN2
4DIN3
4DIN4
EN3
GND
VCC
DO4+
DIN4
DO4–
VCC
GND
1 of 4
PS8573C
09/22/04
1
PI90LV387/PI90LVB387
High-Speed Differential Line Drivers
Absolute Maximum Ratings
(Over Operating Free-Air Temperature, unless otherwise noted)
(1)
Notes:
(2)........................................
Supply Voltage Range, V
–0.5V to 4V
CC
1. Stresses beyond those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other
conditions beyond those indicated under “Recommended Operating
Conditions” is not implied. Exposure to Absolute-Maximum-Rated
conditions for extended periods may affect device reliability.
2. All voltage values, except differential I/O bus voltages, are with
respect to ground terminal.
Voltage Range: Inputs ............................................ –0.5V to 6V
or D ............................................................. –0.5V to 4V
Electrostatic Discharge
D
O+
O–
(3):
(D ,D and GND).......................Class 3, A: 10kV, B:700V
O+ O–
(All Pins) ..........................................Class 3, A: 8kV, B:600V
Continuous Power Dissipation......(see dissipation rating table)
Storage Temperature Range ............................. –65°C to 150°C
Lead Temperature 1.6mm (1/16 inch)
3. Tested in accordance with MIL-STD-883C Method 3015.7
from case for 10 seconds...............................................260°C
Recommended Operating Conditions
Driver Function Table
Min. Nom. Max. Units
Differential Input
Enables
Outputs
D
D
EN
H
D
OUT+
Supply Voltage, V
3.0
2.0
3.3
3.6
IN
OUT-
CC
H
L
H
L
Z
L
L
High-level Input Voltage, V
V
IH
H
H
Z
Low-level Input Voltage, V
Operating free-air tempera-
ture, T
0.8
85
IL
X
L
-40
ºC
A
Open
H
H
Notes:
1. H = high level,
L = low level,
X = irrelevent,
Z = high impedance (off)
PS8573C
09/22/04
2
PI90LV387/PI90LVB387
High-Speed Differential Line Drivers
Electrical Characteristics Over Recommended Operating Conditions (unless otherwise noted)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Units
| V
|
Differential output voltage magnitude
247
340
454
OH
R = 50Ω (LVB)
L
R = 100Ω (LV)
See Figure 1 and 2
mV
50
L
Change in differential output voltage
magnitude between logic states
∆| V
|
-50
OH
See Figure 3
LV
1.125
1.375
V
Steady-state common-mode output
voltage
V
OC(SS)
LVB 1.000
1.375
Change in Steady-state common-mode
output voltage between logic states
∆V
-50
50
OC(SS)
See Figure 3
mV
150
Peak-to-peak common-mode output
voltage
V
50
OC(PP)
R = 50Ω (LVB)
L
LV
60
78
I
I
Supply Current
R = 100Ω (LV)
mA
CC
L
LVB
122
190
Enabled, V = GND or V
IN
CC
I
High-Level input current
Low-level input current
V
V
= 2V
3
2
20
µA
10
IH
IH
IL
I
= 0.8V
IL
OS
OZ
LV
LVB
LV
±24
V
V
or V
= 0V
ODOUT+
ODOUT-
±48
mA
±12
Short-circuit output current
= 0V
OD
LVB
±24
I
High-impedance output current
Power-off output current
Input capacitance
V = 0V or V
O
±1
µA
±1
CC
I
V
= 0V, V = 2.4V
CC O
O(OFF)
C
V = 0.4 sin (4E6�t) + 0.5V
I
6
IN
pF
V = 0.4 sin (4E6�t) + 0.5V,
Disabled
I
C
Output capacitance
9.4
O
Note:
1. All typical values are at 25°C and with a 3.3V supply.
PS8573C
09/22/04
3
PI90LV387/PI90LVB387
High-Speed Differential Line Drivers
Switching Characteristics (Over Recommended Operating Conditions, unless otherwise noted)
Symbol
Parameter
Propagation delay time low-to-high level outputs
Propagation delay time, high-to-low-level outputs
Differential outpu sign rise time
Test Conditions Min.
Typ.
1.8
1.8
0.8
0.8
150
80
Max. Units
t
0.9
0.9
2.6
PHL
PHL
r
t
t
t
t
t
t
t
t
t
t
2.6
ns
R = 50Ω (LVB)
L
0.4
0.4
1.3
R = 100Ω (LV)
L
Differential output signal fall time
1.3
f
C = 10pF
L
Pulse skew ( | tphl - tphl | )
500
sk(p)
sk(o)
sk(pp)
PZH
PZL
PHZ
PLZ
See Figure 4
(2)
Output skew
150
1.5
6.7
5.1
4.6
4.6
ps
(3)
Part-to-part skew
Propagation delay time, high impdeance-to high-level output
Propagation delay time, high impdeance-to low-level output
Propagation delay time, high-level-to-high-impdeance output
Propagation delay time, low-level-to-high-impdeance output
Maximum operating frequency
4.5
3.5
3.1
3.1
250
ns
See Figure 5
f
MHz
MAX
Notes:
1. All typical values are at 25°C and with a 3.3V supply
2. tsk(o) is the magnitude of the time difference between the tPLH or tPHL of all drivers of a single device with all of their inputs connected to-
gether.
3. tsk(pp) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate
with the same supply voltages, at the same temperature, and have identical packages and test circuits
PS8573C
09/22/04
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PI90LV387/PI90LVB387
High-Speed Differential Line Drivers
Parameter Measurement Information
Figure 1. Voltage and Current Definitions
Figure 2. V Test Circuit
OD
Figure 3. Test Circuit & Definitions for the Driver Common-Mode Output Voltage
Note:
1. All input pulses are supplied by a generator having the following characteristics: tr or tf ≤1ns, Pulse Repetition Rate
(PRR) = 50 Mpps, Pulse width = 10 ±0.2ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T. The measurement
of VOC(PP) is made on test equipment with a –3dB bandwidth of at least 300MHz.
PS8573C
09/22/04
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PI90LV387/PI90LVB387
High-Speed Differential Line Drivers
Parameter Measurement Information (continued)
Figure 4. Test Circuit, Timing, & Voltage Definitions for the Differential Output Signal
Note:
1. All input pulses are supplied by a generator having the following characteristics: tr or tf ≤1ns, Pulse Repetition Rate (PRR) = 15 Mpps, Pulse
width = 10 ±0.2ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T.
Note:
1. All input pulses are supplied by a generator having the following characteristics: tr or tf ≤ 1ns, Pulse Repetition Rate
(PRR) = 0.5 Mpps, Pulse width = 500 ±10ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T.
Figure 5. Enable & Disable Time Circuit & Definitions
PS8573C
09/22/04
6
PI90LV387/PI90LVB387
High-Speed Differential Line Drivers
Packaging Mechanical: 64-Pin TSSOP (A)
64
.236
.244
6.0
6.2
.004
.008
1
.665 16.9
.673 17.1
0.09
0.20
0.45 .018
0.75 .030
SEATING
PLANE
.047
Max.
1.20
.319
8.1
BSC
.004
0.10
.002 0.05
.006 0.15
.0197
BSC
0.50
.007
.011
0.17
0.27
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
Ordering Information
Ordering Code
PI90LV387A
Package Code
Package Type
A
A
A
A
64-pin TSSOP
PI90LV387AE
Pb-free & Green, 64-pin TSSOP
64-pin TSSOP
PI90LVB387A
PI90LVB387AE
Pb-free & Green, 64-pin TSSOP
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. Number of Transistors = TBD
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
7
PS8573C
09/22/04
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