PACNLT101 Datasheet, PDF (1/5 Pages) California Micro Devices Corp – NON-LINEAR HIGH SPEED TERMINATION IC

PACNLT101
Non-Linear High Speed Termination IC
Features
• 16 channel, dual rail clamping action in
a single package
• Provides bus termination independent of line
impedance or loading conditions
• Uses CAMD’s patented EZterm™ technology
• 24-pin QSOP package saves board space and
eases layout in space critical areas.
• One IC replaces and outperforms up to 32 discrete
components.
• Enable pin included
Application
• High speed, low voltage buses
Product Description
CAMD’s non-linear termination IC is specifically de-
signed to minimize overshoot/undershoot disturbances
caused by impedance mismatch reflections and noise on
high-speed transmission lines.
Reflections on high-speed data lines lead to voltage
overshoot and undershoot disturbances, which may
result in data loss or improper system operation. Resis-
tive terminations, when used to terminate these high-
speed data lines, increase power consumption and
degrade output levels, resulting in reduced noise immu-
nity. Clamping-type termination is the best overall
solution for applications in which these may be consider-
ations.
This highly integrated non-linear termination IC provides
very effective termination performance for high-speed
data lines under variable loading conditions. The device
supports up to 16 terminated lines per package – each
of which are clamped to both ground and power supply
rail. A typical application may use 4 devices to replace
(and outperform) 64 conventional Schottky diode pairs;
thus providing significant reductions in component and
assembly costs, improvements in manufacturing effi-
ciency and reliability, and savings in allocated board area
for space-critical designs.
Pin Configuration
NLT#1
NLT#2
NLT#3
GND
NLT#4
NLT#5
NLT#6
NLT#7
GND
NLT#8
NLT#9
NLT#10
Top View
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
PACNLT101
24-Pin QSOP
V_DD
V_DD
NLT#16
GND
NLT#15
NLT#14
NLT#13
NLT#12
GND
NLT#11
Enable
V_DD
Package
Pin
24
Standard Part Ordering Information
Ordering Part Number
Style
Tape & Reel
Part Marking
QSOP
PACNLT101Q
PACNLT101Q
©2001 California Micro Devices Corp. All rights reserved. EZterm™ is a trademark of California Micro Devices
215 Topaz Street, Milpitas, California 95035  Tel: [phone]
3/8/2001
Fax: [phone]
C1601100
www.calmicro.com
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