21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LVB179/PI90LVB180/
PI90LVB050/PI90LVB051
3.3V Boost LVDS High-Speed Differential Line Drivers and Receivers
Product Features
• Signaling Rates >660 Mbps (330 MHz)
• Single 3.3V Power Supply Design
• Driver:
— ±350mV Differential Swing into a 50 ohm load
— Propogation Delay of 1.5ns Typ.
— Low Voltage TTL (LVTTL) Inputs are 5V Tolerant
— Driver is High Impedance when Disabled or V
CC
< 1.5V
• Receiver:
— Accepts ±50mV (min.) Differential Swing with up to 2.0V
ground potential difference
— Propagation Delay of 3.3ns Typ.
— Low Voltage TTL (LVTTL) Outputs
— Open, Short, and Terminated Fail Safe
• Industrial Temperature Operating Range: –40°C to 85°C
• Package Options: SOIC, TSSOP, MSOP
• Bus-Terminal ESD > 12kV
Product Description
The PI90LVB179, PI90LVB180, PI90LVB050, and PI90LVB051 are
differential line drivers and receivers (transceivers) that are similar
to the IEEE 1596.3 SCI and ANSI/TIA/EIA-644 LVDS standards (the
difference is that the driver output current is doubled). This modi-
fication enables true half-duplex operation with more than one LVDS
driver or with two line transmission resistors over a 50 ohm differen-
tial transmission line. These devices use low-voltage differential
signaling (LVDS) to achieve data rates in excess of 660 Mbps while
being less susceptible to noise than single-ended transmission.
The drivers translate a low-voltage TTL/CMOS input into a low-
voltage (350mV typical) differential output signal into a 50-ohm load.
The receivers translate a differential 350mV input signal to a 3V CMOS
output level. Driver section can be independently set to a power-down
and high-impedance output mode with the D
EN
pin (active HIGH).
Receiver section is controlled by the R
EN*
pin (active LOW).
Applications
Applications include point-to-point and multidrop baseband data
transmission over a controlled impedance media of approximately 50
ohms. These include intra-system connections via printed circuit
board traces or cables, hubs and routers for data communi- cations;
PBXs, switches, repeaters and base stations for telecommunications
and other applications such as digital cameras, printers and copiers.
PI90LVB179
PI90LVB050
DIN1
DOUT1+
DOUT1-
DOUT2+
DOUT2-
RIN1+
RIN1-
RIN2+
RIN2-
RIN1
RIN1+
ROUT1
REN*
ROUT2
RIN2+
RIN2
GND
VCC
DIN1
DOUT1+
DOUT1
DEN
DOUT2
DOUT2+
DIN2
VCC
ROUT
DIN
GND
1
2
3
4
8
8-Pin
U, W
7
6
5
RIN+
RIN
DOUT
DOUT+
DIN
DOUT+
DOUT-
RIN+
RIN-
ROUT
1
2
3
4
5
6
7
8
16
15
14
16-Pin
13
L, W
12
11
10
9
DEN
DIN2
ROUT1
REN*
ROUT2
PI90LVB180
PI90LVB051
DIN1
DOUT1+
DOUT1-
RIN1+
RIN1-
DOUT2+
DOUT2-
RIN2+
RIN2-
NC
ROUT
REN*
DEN
DIN
GND
GND
1
2
3
4
5
6
7
14
13
14-Pin
12
11
L, W
10
9
8
VCC
VCC
RIN+
RIN
DOUT
DOUT+
NC
DIN
DEN
REN*
ROUT
DOUT+
DOUT-
RIN+
RIN-
RIN1
RIN1+
ROUT1
DEN1
ROUT2
RIN2+
RIN2
GND
1
2
3
4
5
6
7
8
16
15
14
16-Pin
13
L, W
12
11
10
9
VCC
DIN1
DOUT1+
DOUT1
DEN2
DOUT2
DOUT2+
DIN2
DEN1
ROUT1
DIN2
DEN2
ROUT2
1
PS8540
05/01/01
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LVB179/PI90LVB180/
PI90LVB050/PI90LVB051
3.3V Boost LVDS High-Speed Differential Line Drivers & Receivers
Pin Descriptions
Function Tables
PI90LVB179 Receiver
Name
De s cription
TTL/CMOS driver input pins
Non- inverting driver output pins
Inverting driver output pins
TTL/CMOS receiver output pins
Non- inverting receiver input pins
Inverting receiver input pins
Input Differential Signal Voltage
Ground pin
Positive power supply pin, +3.3V ±10%
Inputs
V
ID
= V
RIN+
– V
RIN–
V
ID
≥
50mV
–50mV < V
ID
< 50mV
V
ID
≤
–50mV
open
PI90LVB179 Driver
Output
R
OUT
H
?
L
H
D
IN
D
OUT
+
D
OUT
+
R
OUT
R
IN
+
R
IN–
V
ID
Input
D
IN
L
H
open
D
OUT+
L
H
L
Output
D
OUT–
H
L
H
GND
V
CC
Absolute Maximum Ratings
Supply Voltage (V
CC
) ................................................... –0.5V to +4.0V
Driver
Input Voltage (D
IN
) ....................................... –0.3V to (Vcc + 0.3V)
Output Voltage (D
OUT+
, D
OUT-
) .............................. –0.3V to +3.9V
Short Circuit Duration (D
OUT+
, D
OUT-
) ........................ Continuous
Enable Input Voltage (D
EN
) ........................... –0.3V to (V
CC
+ 0.3V)
Receiver
Input Voltage (R
IN+
, R
IN-
) ....................................... –0.3V to +3.9V)
Output Voltage (R
OUT
) .................................. –0.3V to (V
CC
+ 0.3V)
Enable Input Voltage (R
EN*
) .......................... –0.3V to (V
CC
+ 0.3V)
Storage Temperature Range ................................. –65°C to +150°C
Lead Temperature Range Soldering (4s) .............................. +260°C
Maximum Junction Temperature ........................................... +150°C
ESD Rating ...............................................................................>12kV
Recommended Operating Conditions
PI90LVB180/ PI90LVB050/PI90LV0B51 Receiver
Inputs
V
ID
= V
RIN+
– V
RIN–
V
ID
≥
50mV
–50mV < V
ID
< 50mV
V
ID
≤
–50mV
open
X
R
EN*
L
L
L
L
H
Output
R
OUT
H
?
L
H
Z
PI90LVB180/PI90LVB050/PI90LVB051 Driver
M in.
Supply Voltage (V
CC
)
High Level Input Voltage, V
IH
Low Level Input Voltage, V
IL
Magnitude of Differential Input
Voltage |V
ID
|
Common- mode Input Voltage,
V
IC
(Fig 5)
Operating Free Air Temperature T
A
0.1
|V
ID
| /2
3
2
Typ.
3.3
M ax.
3.6
Units
Inputs
D
IN
L
H
open
X
D
EN
H
H
H
L
Output
D
OUT+
L
H
L
Z
D
OUT–
H
L
H
Z
0.8
V
0.6
2.4 – |V
ID
| /2
V
CC
–0.8
–40
85
°C
Notes:
H = High Level, L = Low Level
? = Indeterminate, Z = High-Impedance, X = Don’t Care
2
PS8540
05/01/01
321098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
321098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LVB179/PI90LVB180/
PI90LVB050/PI90LVB051
3.3V Boost LVDS High-Speed Differential Line Drivers & Receivers
Electrical Characteristics
(Over recommended operating conditions unless otherwise noted).
Parame te r
PI90LVB179
Te s t Condition
No receiver load, Driver R
L
= 50 ohms
Driver and receiver enabled. No receiver load,
Driver R
L
= 50 ohms
PI90LVB180
Driver disabled, Receiver disabled, R
L
= 50 ohms
Driver disabled, Receiver enabled, No load
Disabled
I
CC
* Supply
Current
PI90LVB050
Driver and receivers enabled. No receiver loads,
Driver R
L
= 50 ohms
Drivers disabled, Receivers disabled, R
L
= 50 ohms
Drivers disabled, Receivers enabled, No loads
Disabled
PI90LVB051
Drivers enabled, No receiver loads, Driver R
L
= 50 ohms
Drivers disabled, No loads
M in.
Typ.
†
10
10.5
1
0.9
1.3
20.5
3.1
1.0
1.2
20.5
1. 0
M a x.
14
14
1.5
1.1
1. 7
24.6
3.7
1.2
1.5
24.7
1.2
mA
Units
†All typical values are at 25°C with a 3.3V supply
*I
CC
measured with all TTL input. V
IN
= V
CC
or GND.
Driver Electrical Characteristics
(Over recommended operating conditions unless otherwise noted).
Parame te r
V
OD
∆
V
OD
V
OC(SS)
∆V
OC(SS)
V
OC(PP)
I
IH
I
IL
I
OS
I
OZ
I
O(OFF)
C
IN
Differential output voltage magnitude
Change in differential output voltage magnitude between
logic states
Steady- state common- mode output voltage
Change in steady- state common- mode output voltage
between logic states
Peak- to- peak common- mode output voltage
High- level input current
DE
D
IN
DE
D
IN
V
IH
= 5V
V
IL
= 0.8V
V
OY
or V
OZ
= 0V
V
OD
= 0V
V
OD
= 600mV
V
O
- 0V or V
CC
V
CC
= 0V, V
O
= 3.6V
3
See Figure 3
Te s t Conditions
R
L
= 50 ohms
See Figures 1 and 2
M in.
247
–50
1.125
–50
50
–0.5
2
–0.5
2
–6
–8
1.25
Typ.
420
M ax.
520
mV
50
1.375
50
165
–20
20
–10
10
–12
–15
±1
±1
±1
10.5
pF
µA
mA
µA
V
mV
Units
Low- level input current
Short- circuit output current
High- impedance output current
Power- off output current
Input capacitance
3
PS8540
05/01/01
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LVB179/PI90LVB180/
PI90LVB050/PI90LVB051
3.3V Boost LVDS High-Speed Differential Line Drivers & Receivers
Receiver Electrical Characteristics
(Over recommended operating conditions unless otherwise noted).
Parame te r
V
ITH+
V
ITH–
V
OH
V
OL
I
I
I
I (OFF)
I
H
I
L
I
OZ
C
I
Positive- going differential input voltage threshold
See Figures 5 & Table 1
Negative- going differential input voltage threshold
High- level output voltage
Low- level output voltage
Input current (R
IN+
or R
IN–
)
Power- off input current (R
IN+
or R
IN–
)
High- level input current (enables)
Low- level input current (enables)
High- impedance output current
Input capacitance
I
OH
= –8mA
I
OL
= 8mA
V
I
= 0
V
I
= 2.4V
V
CC
= 0
V
IH
= 2V
V
IL
= 0.8V
V
O
= 0 or 5V
5
–2
–1.2
–11
–3
±20
±10
±10
±10
pF
µA
–5 0
2.4
0.4
–2 0
V
V
Te s t Conditions
M in.
Typ.
M a x.
50
mV
Units
†All typical values are at 25°C with a 3.3V supply
Driver Switching Characteristics
(Over recommended operating conditions unless otherwise noted).
Parame te r
t
PLH
t
PHL
t
r
t
f
t
sk(p)
t
sk(o)
t
sk(pp)
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation delay time, low- to- high- level output
Propagation delay time, lhigh- to- low- level output
Differential output signal rise time
Differential output signal fall time
Pulse skew (t
PHL
– t
PLH
)
Channel- to- channel output skew
‡
Part- part- part skew**
Propagation delay time, high- impedance- to- high- level output
Propagation delay time, high- impedance- to- low- level output
Propagation delay time, high- level- to- high- impedance output
Propagation delay time, low- level- to- high- impedance output
See Figure 7
3.3
2.0
1.7
1.7
R
L
= 50 ohms
C
L
= 10pF
See Figure 2
Te s t Conditions
M in.
Typ.
†
2.0
1. 9
0.4
0.4
200
90
M a x.
2.6
2.5
0.6
0.6
310
16 0
0.9
5
3.3
3.3
3.3
ns
ps
ns
Units
†All typical values are at 25°C with a 3.3V supply
‡t
sk(o)
: the maximum delay time difference between drivers on the same device.
**t
sk(pp)
: magnitude of difference in propagation delay times between any specific terminals of two devices (all things being equal)
4
PS8540
05/01/01
321098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
321098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LVB179/PI90LVB180/
PI90LVB050/PI90LVB051
3.3V Boost LVDS High-Speed Differential Line Drivers & Receivers
Receiving Switching Characteristics
(Over recommended operating conditions unless otherwise noted).
Parame te r
t
PLH
t
PHL
t
sk(p)
t
sk(pp)**
t
sk(o)
t
r
t
f
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation delay time, low- to- high- level output
Propagation delay time, lhigh- to- low- level output
Pulse skew (t
PHL
– t
PLH
)
Part- part- part skew**
Channel- to- channel skew
Output signal rise time
Output signal fall time
Propagation delay time, high- level- to- high- impedance output
Propagation delay time, low- level- to- low- impedance output
Propagation delay time, high- impedance- to- high- level output
Propagation delay time, low- impedance- to- high- level output
Te s t Conditions
M in.
Typ.
†
1. 9
2.4
M ax.
2.9
3.3
0.4
1.3
Units
ns
C
L
= 10 p F
See Figure 6
0.1
40
1.1
1.3
1.6
See Figure 7
4.1
2.5
6.0
80
1.7
2.1
2.4
5.9
3.2
7.8
ps
ns
†All typical values are at 25°C with a 3.3V supply
**t
sk(pp)
is magnitude of the difference in propagation delay times between any specific terminals of two devices (all things being equal)
Parameter Measurement Information
DEN
II
DOUT+
DIN
DOUT–
VI
VOD–
VOD
VOD+
VOC
VOD+VOD+
2
DOD+
Driver
Figure 1. Driver Voltage and Current Definitions
5
PS8540
05/01/01
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