PACNLT101
Non-Linear High Speed Termination IC
Features
鈥?16 channel, dual rail clamping action in
a single package
鈥?Provides bus termination independent of line
impedance or loading conditions
鈥?Uses CAMD鈥檚 patented EZterm鈩?technology
鈥?24-pin QSOP package saves board space and
eases layout in space critical areas.
鈥?One IC replaces and outperforms up to 32 discrete
components.
鈥?Enable pin included
Application
鈥?High speed, low voltage buses
Product Description
CAMD鈥檚 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 鈥?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
Top View
NLT#1
NLT#2
NLT#3
GND
NLT#4
NLT#5
NLT#6
NLT#7
GND
NLT#8
NLT#9
NLT#10
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2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
DD
V
DD
NLT#16
GND
NLT#15
NLT#14
NLT#13
NLT#12
GND
NLT#11
Enable
V
DD
PACNLT101
24-Pin QSOP
Standard Part Ordering Information
Package
Pin
24
Style
QSOP
Ordering Part Number
Tape & Reel
Part Marking
PACNLT101Q
PACNLT101Q
漏2001 California Micro Devices Corp. All rights reserved. EZterm鈩?is a trademark of California Micro Devices
C1601100
215 Topaz Street, Milpitas, California 95035
3/8/2001
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
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