PERICOM PI90LVB047A

PI90LV047A/PI90LVB047A
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3V LVDS Quad Flow-Through
Differential Line Drivers
Features
Description
• >500 Mbps (250 MHz) switching rates
• Flow-through pinout simplifies PCB layout
• Low Voltage Differential Signaling with output voltages
of ±350mV into:
– 100-ohm load (PI90LV047)
– 50-ohm load (PI90LVB047)
• 300ps typical differential skew
• 400ps maximum differential skew
• 1.7ns maximum propagation delay
• 3.3V power supply design
• ±350mV differential signaling
• Bus-Pin ESD protection >10kV
• Interoperable with existing 5V LVDS receivers
• High impedance on LVDS outputs on power down
• Conforms to TIA/EIA-644 LVDS Standard
• Industrial operating temperature range (–40°C to +85°C)
• Packages (Pb-free & Green Available):
– 16-pin SOIC (S)
– 16-pin TSSOP (L)
The PI90LV047A/PI90LVB047A are quad flow-through differential
line drivers designed for applications requiring ultra-low power
dissipation and high data rates. The devices are designed to support
data rates in excess of 400 Mbps (200 MHz) using Low Voltage
Differential Signaling (LVDS) technology.
Block Diagram
Pin Configuration
DIN1
DIN2
DIN3
DIN4
D1
D2
D3
D4
The PI90LV047A/PI90LVB047A accept low-voltage TTL/CMOS
input levels and translates them to low-voltage (350 mV) differential
output signals.
The PI90LVB047A doubles the output drive current to achieve Bus
LVDS signaling levels with a 50-ohm load. A doubly terminated Bus
LVDS line enables multipoint configurations. In addition, the driver
supports a 3-state function that may be used to disable the output
stage, disabling the load current, and thus dropping the device to an
ultra low idle power state of 13mW typical. The devices have a flowthrough pinout for easy PCB layout.
The EN and EN inputs are banded together and control the 3-state
outputs. The enables are common to all four drivers.
The intended application of these devices and signaling technique
is for both point-to-point baseband (PI90LV047A) and multipoint
(PI90LVB047A) data transmission over controlled impedance media.
DOUT1+
EN
1
16
DOUT1–
DOUT1–
DIN1
2
15
DOUT1+
DIN2
3
14
DOUT2+
DOUT2+
VCC
4
13
DOUT2–
DOUT2–
GND
5
12
DOUT3–
DIN3
6
11
DOUT3+
DOUT3+
DIN4
7
10
DOUT4+
DOUT3–
EN
8
9
DOUT4–
Truth Table
DOUT4+
Enable s
DOUT4–
EN
EN
EN
EN
H
L or Open
All other combinations of ENABLE inputs
1
Input
Outputs
DIN
DOUT+ DOUT–
L
L
H
H
H
L
X
Z
Z
PS8611B
10/04/04
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
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Absolute Maximum Ratings
Supply Voltage (VCC) ............................................... –0.3V to +4V
Input Voltage (DIN) .................................... –0.3V to (VCC + 0.3V)
Enable Input Voltage (EN, EN) ................... –0.3V to (VCC + 0.3V)
Output Voltage (DOUT+,DOUT–) ............................ –0.3V to +3.9V
Short Circuit Duration
(DOUT+,DOUT–) ....................................................... Continuous
Maximum Package Power Dissipation @ +25°C
M Package ................................................................. 1088 mW
MTC Package ............................................................... 866 mW
Derate M Package .............................. 8.5 mW/°C above +25°C
Derate MTC Package ........................ 6.9 mW/°C above +25°C
Storage Temperature Range .............................. –65°C to +150°C
Lead Temperature Range
Soldering (4 seconds) ................................................... +260°C
Maximum Junction Temperature ...................................... +150°C
ESD Rating(10)
(HBM, 1.5kW, 100pF) ...................................................... ≥10kV
(EIAJ, 0W, 200pF) ......................................................... ≥1200V
Recommended Operating Conditions
Min
Supply Voltage (VCC)
+3.0
Operating Free Air Temperature (TA) –40
Typ
+3.3
+25
Max Units
+3.6
V
+85
°C
Electrical Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified(2,3,4).
Symbol
Parame te r
Te s t Conditions
VO D 1
Differential output voltage magnitude
∆VO D 1
Change in Magnitude of VO D 1 for
complementary output states
RL = 100 ohms (LV047A)
RL = 50 ohms (LVB047A)
See Figure 1
LVxxx
Pin
DO U T–
DO U T+
M in.
Typ. M ax. Units
250
310
450
mV
1
35
mV
1.125
1.2
1.375
1.00
1.15 1.375
VO S
Offset voltage
∆VO S
Change in magnitude of VO S for
complementary output states
VO H
Output high voltage
VO L
Output low voltage
0.90
VIH
Input high voltage
2.0
VC C
VIL
Input low voltage
GND
0.8
IIH
Input high current
VIN = VC C or 2.5V
IIL
Input low current
VIN
VC L
Input clamp voltage
IC L = –18mA
IO S
Output short circuit current(11 )
Enabled, DIN = VC C ,
DO U T+ = 0V
or DIN = GND, DO U T– = 0V
=
LVBxxx
DIN ,
EN,
EN
GND or 0.4V
1
25
1.33
1.6
1.02
+20
µA
–10
–2
+10
µA
–1.5
–0 . 8
V
–10
LVBxxx
–9.0
–20
LVxxx
–4.2
–10
–9.0
–20
IO S D
Differential output short circuit
current(11 )
Enabled, VO D = 0V
IO F F
Power- off leakage
VO U T = 0V or 3.6V, VC C = 0V or Open
–20
±1
+20
IO Z
Output 3- State current
EN = 0.8V and EN =2.0V,
VO U T = 0V or VC C
–10
±1
+10
IC C
No load supply current drivers
enabled
DIN = VC C or GND
LV047A
4.0
8.0
LVB047A
6.0
19.0
IC C L
Loaded supply current drivers
enabled
RL = 100 ohms, (all channels) LV047A
DIN = VC C or GND (all inputs) LVB047A
20
30
35
45
IC C Z
No load supply current drivers
disabled
DIN = VC C or GND,
EN = GND, EN = VC C
LV047A
2.2
8.0
LVB047A
3.0
8.0
2
V
2
–4.2
DO U T–
DO U T+
VC C
mV
–20
LVxxx
LVBxxx
V
PS8611B
mA
µA
mΑ
10/04/04
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
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Switching Characteristics
VCC = +3.3V ±10%, TA = –40°C(3,9,12)
S y mbo l
Pa ra me te r
Te s t Co nditio ns
M in.
Ty p.
M ax.
tPHLD
Differential P ro p agatio n Delay High to Lo w
0.5
0.8
1.9
tPLHD
Differential P ro p agatio n Delay Lo w to High
0.5
1.2
1.9
tS K D1
Differential P ulse S k ew tPHLD tPLHD (5)
0
0.3
0.4
0
0.4
0.5
RL = 1 0 0 o hms (LV0 4 7 )
RL = 5 0 o hms (LVB0 4 7 )
C L = 15pF
(F igures 2 and 3 )
tS K D2
C hannel- to - C hannel S k ew(6)
tS K D3
Differential P art- to - P art S k ew(7)
tS K D4
Differential P art- to - P art S k ew(8)
tTLH
Rise Time
0.5
1.5
tTHL
F all Time
0.5
1.5
tPHZ
Disab le Time High to Z
tPLZ
Disab le Time Lo w to Z
tPZH
Enab le Time Z to High
tPZL
Enab le Time Z to Lo w
fMAX
Maximum O p erating F req uency (14)
0
1.0
0
1.2
Units
5
RL = 1 0 0 o hms (LV0 4 7 )
RL = 5 0 o hms (LVB0 4 7 )
C L = 15pF
(F igures 4 and 5 )
5
7
7
MHz
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:
VOD1 and ∆VOD1.
3. All typicals are given for: VCC = +3.3V, TA = +25°C.
4. The PI90LV047A is a current mode device and only functions within datasheet specifications when a resistive load is applied to the driver
outputs typical range is (90 ohms to 110 ohms).
5. tSKD1 |tPHLD – tPLHD | is the magnitude difference in differential propagation delay time between the positive going edge and the negative going
edge of the same channel.
6. tSKD2 is the Differential Channel-to-Channel Skew of any event on the same device.
7. tSKD3, 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 within 5°C of each other within the operating temperature range.
8. tSKD4, 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. tSKD4 is defined as
|Max – Min| differential propagation delay.
9. Generator waveform for all tests unless otherwise specified: f = 1 MHz, ZO = 50 ohms, tr ≤1 ns, and tf ≤1ns.
10. ESD Ratings:
HBM (1.5 kohms, 100pF) ≥10kV
EIAJ (0 ohm, 200pF) ≥1200V
11. Output short circuit current (IOS) is specified as magnitude only, minus sign indicates direction only.
12. CL includes probe and jig capacitance.
13. All input voltages are for one channel unless otherwise specified. Other inputs are set to GND.
14. f MAX generator input conditions: tr = tf <1ns (0% to 100%), 50% duty cycle, 0V to 3V.
Output Criteria: duty cycle = 45%/55%, VOD >250mV, all channels switching.
3
PS8611B
10/04/04
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
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Parameter Measurement Information
DOUT+
RL/2
VCC
DIN
VOS
GND
VOD
RL/2
Driver ENABLED
Figure 1. Driver VOD and VOS Test Circuit
CL
DOUT+
Generator
DIN
RL
50Ω
DOUT–
Driver ENABLED
CL
Figure 2. DriverPropagation Delay & Transition Time Test Circuit
3V
1.5V
1.5V
DIN
0V
tPLHD
tPHLD
DOUT–
VOH
0V Differential
0V
DOUT+
VOL
80%
DDIFF
80%
0V
0V
VDIFF = DOUT+ – DOUT–
20%
20%
tTLH
tTHL
Figure 3. Driver Propogation Delay and Transition Time Waveforms
4
PS8611B
10/04/04
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
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Parameter Measurement Information (continued)
CL
DOUT+
50Ω
VCC
DIN
GND
D
+1.2V
50Ω
EN
Generator
DOUT–
EN
CL
50Ω
1/4 PI90LV047A
Figure 4. Drive 3-State Delay Test Circuit
EN When EN = GND or OPEN
3V
1.5V
1.5V
0V
3V
1.5V
1.5V
0V
EN When EN = VCC
tPHZ
DOUT+ When DIN = VCC
DOUT– When DIN = GND
tPZH
VOH
50%
50%
1.2V
1.2V
50%
DOUT+ When DIN = GND
DOUT– When DIN = VCC
tPLZ
50%
VOL
tPZL
Figure 5. Driver 3-State Delay Waveform
Typical Application
Enable
Any LVDS Receiver
+
Data Input
–
Data
Output
1/4 PI90LV047A
Figure 6. Point-to-Point Application
5
PS8611B
10/04/04
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
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Packaging Mechanical: 16-Pin SOIC (W)
16
.149
.157
3.78
3.99
.0099
.0196
0.25
x 45˚
0.50
1
.0075
.0098
0-8˚
.386
.393
9.80
10.00
0.41
1.27
.053
.068
.0155
.0260
0.393
0.660
REF
1.35
1.75
.016
.050
.2284
.2440
5.80
6.20
SEATING PLANE
.050
BSC
1.27
0.19
0.25
.0040 0.10
.0098 0.25
.013
.020
0.330
0.508
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
Packaging Mechanical: 16-Pin TSSOP (L)
16
.169
.177
4.3
4.5
1
.193
.201
4.9
5.1
.004
.008
.047
max.
1.20
0.45 .018
0.75 .030
SEATING
PLANE
.0256
BSC
0.65
.007
.012
.002
.006
0.09
0.20
.252
BSC
6.4
0.05
0.15
X.XX DENOTES CONTROLLING
X.XX DIMENSIONS IN MILLIMETERS
0.19
0.30
6
PS8611B
10/04/04
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
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Ordering Information
Ordering Code
PI90LV047AW
PI90LV047AWE
PI90LV047AL
PI90LV047ALE
PI90LVB047AW
PI90LVB047AWE
PI90LVB047AL
PI90LVB047ALE
Package Code
W
W
L
L
W
W
L
L
Package Type
16-pin SOIC
Pb-free & Green, 16-pin SOIC
16-pin TSSOP
Pb-free & Green, 16-pin TSSOP
16-pin SOIC
Pb-free & Green, 16-pin SOIC
16-pin TSSOP
Pb-free & Green, 16-pin TSSOP
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. X = Tape and reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
7
PS8611B
10/04/04