DS90LV028 NSC [National Semiconductor], DS90LV028 Datasheet - Page 5

• Manufacturer Part Number: DS90LV028
• Description: 3V LVDS Dual CMOS Differential Line Receiver
• Manufacturer: NSC [National Semiconductor]

Applications Information
When choosing cable and connectors for LVDS it is impor-
tant to remember:
Use controlled impedance media. The cables and connec-
tors you use should have a matched differential impedance
of about 100 . They should not introduce major impedance
discontinuities.
Balanced cables (e.g. twisted pair) are usually better than
unbalanced cables (ribbon cable, simple coax) for noise re-
duction and signal quality. Balanced cables tend to generate
less EMI due to field canceling effects and also tend to pick
up electromagnetic radiation a common-mode (not differen-
tial mode) noise which is rejected by the receiver.
For cable distances
work effectively. For distances 0.5M
egory 3) twisted pair cable works well, is readily available
and relatively inexpensive.
Typical Performance Curves
Output High Voltage vs
Power Supply Voltage
Output Short Circuit Current vs
Power Supply Voltage
<
0.5M, most cables can be made to
d
10M, CAT 3 (cat-
(Continued)
DS100077-7
DS100077-9
Output Low Voltage vs
Power Supply Voltage
Differential Transition Voltage vs
Power Supply Voltage
5
Pin Descriptions
Ordering Information
Pin No.
−40˚C to +85˚C
Temperature
1, 4
2, 3
6, 7
Operating
8
5
Name
R
GND
R
R
V
OUT
IN
CC
IN
+
-
Package Type/
Inverting receiver input pin
Non-inverting receiver input pin
Receiver output pin
Power supply pin, +3.3V
Ground pin
SOP/M08A
Number
Description
DS100077-10
DS100077-8
DS90LV028ATM
Order Number
±
www.national.com
0.3V