21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
Features
• >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)
Description
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.
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 flow-
through 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.
Block Diagram
Pin Configuration
D
IN1
D1
D
OUT1+
D
OUT1–
EN
D
IN1
D
IN2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D
OUT1–
D
OUT1+
D
OUT2+
D
OUT2–
D
OUT3–
D
OUT3+
D
OUT4+
D
OUT4–
D
IN2
D2
D
OUT2+
D
OUT2–
V
CC
GND
D
IN3
D
IN3
D3
D
OUT3+
D
OUT3–
D
IN4
EN
D
IN4
D4
D
OUT4+
D
OUT4–
Truth Table
Enable s
EN
EN
L or Open
Input
D
IN
L
H
X
Outputs
D
OUT+
D
OUT–
L
H
Z
H
L
Z
EN
EN
H
All other combinations of ENABLE inputs
1
PS8611B
10/04/04
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
Absolute Maximum Ratings
Supply Voltage (V
CC
) ............................................... –0.3V to +4V
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
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 (V
CC
)
+3.0
Operating Free Air Temperature (T
A
) –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
V
O D 1
∆V
O D 1
V
O S
∆V
O S
V
O H
V
O L
V
IH
V
IL
I
IH
I
IL
V
C L
I
O S
Differential output voltage magnitude
Change in Magnitude of V
O D 1
for
complementary output states
Offset voltage
Change in magnitude of V
O S
for
complementary output states
Output high voltage
Output low voltage
Input high voltage
Input low voltage
Input high current
Input low current
Input clamp voltage
Output short circuit
current
(11 )
V
IN
= V
C C
or 2.5V
V
IN
=
Pin
M in.
250
Typ. M ax. Units
310
1
450
35
1.375
mV
mV
V
mV
R
L
= 100 ohms (LV047A)
R
L
= 50 ohms (LVB047A)
See Figure 1
LVxxx
LVBxxx
D
O U T–
D
O U T+
1.125
1.00
1.2
1.15 1.375
1
1.33
25
1.6
V
C C
0.8
2
–2
–0 . 8
–4.2
–9 . 0
–10
–20
–10
–2 0
+20
+10
8.0
19 . 0
30
45
8.0
8.0
PS8611B
0.90
2.0
D
IN
,
EN,
EN
GND
–2 0
–10
–1.5
LVxxx
LVBxxx
LVxxx
LVBxxx
D
O U T–
D
O U T+
–2 0
–10
LV047A
LVB047A
V
C C
1. 0 2
V
+20
+10
µA
µA
V
GND or 0.4V
I
C L
= –18mA
Enabled, D
IN
= V
C C
,
D
O U T+
= 0V
or D
IN
= GND, D
O U T–
= 0V
Enabled, V
O D
= 0V
mA
I
O S D
I
O F F
I
O Z
I
C C
I
C C L
I
C C Z
Differential output short circuit
current
(11 )
Power- off leakage
Output 3- State current
No load supply current drivers
enabled
Loaded supply current drivers
enabled
No load supply current drivers
disabled
–4.2
–9.0
±1
±1
4.0
6.0
20
35
2.2
3.0
V
O U T
= 0V or 3.6V, V
C C
= 0V or Open
EN = 0.8V and EN =2.0V,
V
O U T
= 0V or V
C C
D
IN
= V
C C
or GND
µA
R
L
= 100 ohms, (all channels) LV047A
D
IN
= V
C C
or GND (all inputs) LVB047A
D
IN
= V
C C
or GND,
EN = GND, EN = V
C C
2
mΑ
LV047A
LVB047A
10/04/04
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
Switching Characteristics
S y mbo l
t
PHLD
t
PLHD
t
S K D1
t
S K D2
t
S K D3
t
S K D4
t
TLH
t
THL
t
PHZ
t
PLZ
t
PZH
t
PZL
f
MAX
V
CC
= +3.3V ±10%, T
A
= –40°C
(3,9,12)
Pa ra me te r
Differential P ro p agatio n Delay High to Lo w
Differential P ro p agatio n Delay Lo w to High
Differential P ulse S k ew t
PHLD
t
PLHD (5)
C hannel- to - C hannel S k ew
(6)
Differential P art- to - P art S k ew
(7)
Differential P art- to - P art S k ew
(8)
Rise Time
F all Time
Disab le Time High to Z
Disab le Time Lo w to Z
Enab le Time Z to High
Enab le Time Z to Lo w
Maximum O p erating F req uency
(14)
R
L
= 1 0 0 o hms (LV0 4 7 )
R
L
= 5 0 o hms (LVB0 4 7 )
C
L
= 15pF
(F igures 4 and 5 )
R
L
= 1 0 0 o hms (LV0 4 7 )
R
L
= 5 0 o hms (LVB0 4 7 )
C
L
= 15pF
(F igures 2 and 3 )
Te s t Co nditio ns
M in.
0.5
0.5
0
0
0
0
0.5
0.5
Ty p.
0.8
1.2
0.3
0.4
M ax.
1.9
1.9
0.4
0.5
1.0
1.2
1.5
1.5
5
5
7
7
MHz
Units
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
= +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. t
SKD1
|t
PHLD
– t
PLHD
| 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
SKD2
is the Differential Channel-to-Channel Skew of any event on the same device.
7. t
SKD3
, 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 V
CC
and within 5°C of each other within the operating temperature range.
8. t
SKD4
, 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
SKD4
is defined as
|Max – Min| differential propagation delay.
9. Generator waveform for all tests unless otherwise specified: f = 1 MHz, Z
O
= 50 ohms, t
r
≤1
ns, and t
f
≤1ns.
10. ESD Ratings:
HBM (1.5 kohms, 100pF)
≥10kV
EIAJ (0 ohm, 200pF)
≥1200V
11. Output short circuit current (I
OS
) is specified as magnitude only, minus sign indicates direction only.
12. C
L
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: 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.
3
PS8611B
10/04/04
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
Parameter Measurement Information
D
OUT+
R
L
/2
D
IN
R
L
/2
Driver ENABLED
VOS
VOD
V
CC
GND
Figure 1. Driver V
OD
and V
OS
Test Circuit
C
L
D
OUT+
Generator
D
IN
50Ω
Driver ENABLED
C
L
R
L
D
OUT–
Figure 2. DriverPropagation Delay & Transition Time Test Circuit
3V
1.5V
DIN
t
PLHD
DOUT–
0V Differential
DOUT+
80%
DDIFF
20%
t
TLH
0V
VDIFF = D
OUT+
– D
OUT–
20%
t
THL
80%
0V
0V
V
OL
t
PHLD
V
OH
1.5V
0V
Figure 3. Driver Propogation Delay and Transition Time Waveforms
4
PS8611B
10/04/04
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through
Differential Line Drivers
Parameter Measurement Information
(continued)
C
L
D
OUT+
50Ω
V
CC
GND
EN
Generator
50Ω
1/4 PI90LV047A
EN
C
L
D
IN
D
+1.2V
50Ω
D
OUT–
Figure 4. Drive 3-State Delay Test Circuit
EN When EN = GND or OPEN
1.5V
1.5V
0V
3V
1.5V
EN When EN = V
CC
1.5V
0V
3V
t
PHZ
D
OUT+
When D
IN
= V
CC
D
OUT–
When D
IN
= GND
t
PZH
V
OH
50%
50%
1.2V
1.2V
50%
D
OUT+
When D
IN
= GND
D
OUT–
When D
IN
= V
CC
t
PLZ
t
PZL
50%
V
OL
Figure 5. Driver 3-State Delay Waveform
Typical Application
Enable
Any LVDS Receiver
+
–
Data
Output
Data Input
1/4 PI90LV047A
Figure 6. Point-to-Point Application
5
PS8611B
10/04/04
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