UT54LVDS032-UCA AEROFLEX [Aeroflex Circuit Technology], UT54LVDS032-UCA Datasheet - Page 2

• Manufacturer Part Number: UT54LVDS032-UCA
• Description: Quad Receiver
• Manufacturer: AEROFLEX [Aeroflex Circuit Technology]

TRUTH TABLE
PIN DESCRIPTION
All other combinations
2, 6, 10, 14
3, 5, 11, 13
1, 7, 9, 15
of ENABLE inputs
Pin No.
EN
12
16
L
4
8
R
R
Enables
R
R
R
R
OUT1
OUT2
V
IN1+
IN2+
EN
IN2-
IN1-
SS
Figure 2. UT54LVDS032 Pinout
EN
Name
H
R
R
V
R
V
EN
EN
1
2
3
4
5
6
7
8
OUT
IN+
IN-
DD
SS
UT54LVDS032
OPEN/SHORT or
Receiver
Full Fail-safe
Non-inverting receiver input pin
V
R
V
Terminated
Active high enable pin, OR-ed
Power supply pin, +5V + 10%
Active low enable pin, OR-ed
ID
Inverting receiver input pin
IN+
ID
Input
< -0.1V
> 0.1V
X
- R
Receiver output pin
IN
Description
Ground pin
-
with EN
with EN
15
14
12
11
16
13
10
9
V
Output
R
R
R
R
EN
R
R
R
DD
IN4+
IN4-
OUT4
OUT3
IN3+
IN3-
OUT
H
H
Z
L
2
APPLICATIONS INFORMATION
The UT54LVDS032 receiver’s intended use is primarily in an
uncomplicated point-to-point configuration as is shown in
Figure 3. This configuration provides a clean signaling
environment for quick edge rates of the drivers. The receiver is
connected to the driver through a balanced media which may be
a standard twisted pair cable, a parallel pair cable, or simply
PCB traces. Typically, the characteristic impedance of the media
is in the range of 100 . A termination resistor of 100
be selected to match the media and is located as close to the
receiver input pins as possible. The termination resistor converts
the current sourced by the driver into voltages that are detected
by the receiver. Other configurations are possible such as a
multi-receiver configuration, but the effects of a mid-stream
connector(s), cable stub(s), and other impedance discontinuities,
as well as ground shifting, noise margin limits, and total
termination loading must be taken into account.
The UT54LVDS032 differential line receiver is capable of
detecting signals as low as 100mV, over a + 1V common-mode
range centered around +1.2V. This is related to the driver offset
voltage which is typically +1.2V. The driven signal is centered
around this voltage and may shift +1V around this center point.
The +1V shifting may be the result of a ground potential
difference between the driver’s ground reference and the
receiver’s ground reference, the common-mode effects of
coupled noise or a combination of the two. Both receiver input
pins should honor their specified operating input voltage range
of 0V to +2.4V (measured from each pin to ground).
1/4 UT54LVDS031
INPUT
DATA
ENABLE
Figure 3. Point-to-Point Application
RT 100
1/4 UT54LVDS032
+
-
should
OUTPUT
DATA