ZSP4425CX [ASIX]
Display Driver,;
| 型号： | ZSP4425CX |
| 厂家： | 
ASIX ELECTRONICS CORPORATION |
| 描述： | Display Driver, |
| 文件： | 总11页 (文件大小：283K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ZSP4425 Electroluminescent Lamp Driver
ZSP4425
Z
ywyn
Electroluminescent Lamp Driver
For 1.5V or 2.2V to 4.5V Applications
Features
General Description
TheZSP4425isahighvoltageoutputDC-ACconverterthatcan
operate from a single +1.5VDC, +3.0VDC, or +2.2VDC to
+4.5VDC power supply. The ZSP4425 is designed with our
proprietary high voltage BiCMOS technology and capable of
• Low voltage, single battery operation
(1.1VDC < V
(2.2VDC < V
< 1.7VDC), or
< 4.5VDC)
BATTERY
BATTERY
• DC to AC inverter for EL backlit display panels
• Externally adjustable internal oscillator
• Low current standby mode
supplying up to 220V signals, making it ideal for driving
PP
electroluminescent lamps. The device features 1μA (typical)
standby current for use in low power portable products. One
externalinductorisrequiredtogeneratethehighvoltagecharge
and one external capacitor is used to select the oscillator and
lampfrequencies.TheZSP4425isofferedinboth8-pinnarrow
SOICand8-pinMSOPpackage.Fordeliveryindieform,please
consult the factory.
Applications
• Pagers
• Digital watches
• MP3 players
• Cell Phones
• Backlit LCD displays
OrderingInformation
Part Number Temperature Range
Package Type
8-Pin nSOIC
ZSP4425CN
ZSP4425LCN
ZSP4425CU
ZSP4425LCU
ZSP4425CX
ZSP4425CW
ZSP4425NEB
ZSP4425UEB
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
0°C to +70°C
0°C to +70°C
n/a
8-Pin nSOIC Green
8-Pin MSOP
Pin Configuration
8-Pin MSOP Green
Die in Wafflepack
Die in Wafer Form
nSOIC Eval. Board
MSOP Eval. Board
1
2
3
8
C
HON
OSC
n/a
V
7
6
5
Zywyn
ZSP4425
V
Please contact the factory for pricing, availabiliy on Tape-and-Reels,
and Green Package options.
SS
DD
COIL
EL1
EL2
D1 4
8-Pin nSOIC/MSOP
Please contact the factory for EL driver design support and availability
of custom-made evaluation demo boards.
AN007
See our web site for Application Note
for custom-made evaluation demo boards.
regarding requirements
October 2005
Zywyn Corporation • Tel (408) 733-3225 • Fax (408) 733-3206 • Email sales@zywyn.com • www.zywyn.com
specifications subject to change without notice
rev. 04
Zywyn Corporation
ZSP4425
Storage Considerations
Absolute Maximum Ratings
Storage in a low humidity environment is preferred. Large
high density plastic packages are moisture sensitive and
should be stored in Dry Vapor Barrier Bags. Prior to usage,
the parts should remain bagged and stored below 40°C
and 60%RH. If the parts are removed from the bag, they
should be used within 48 hours or stored in an environ-
ment at or below 20%RH. If the above conditions cannot
be followed, the parts should be baked for four hours at
125°C in order remove moisture prior to soldering. Zywyn
ships product in Dry Vapor Barrier Bags with a humidity
indicator card and desiccant pack. The humidity indicator
should be below 30%RH.
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications is
not implied. Exposure to absolute maximum rating condi-
tions for extended periods of time may affect reliability.
V
................................................................................................. +7.0V
DD
InputVoltages/Currents
HON(pin1) .................................... –0.5V to (V +0.5V)
DD
COIL (pin 3).......................................................100mA
LampOutput ............................................................ 230V
PP
StorageTemperature ................................. –65°Cto+150°C
OperatingTemperature ................................ –40°Cto+85°C
The information furnished by Zywyn has been carefully
reviewed for accuracy and reliability. Its application or
use, however, is solely the responsibility of the user. No
responsibility of the use of this information become part of
the terms and conditions of any subsequent sales agree-
ment with Zywyn. Specifications are subject to change
without the responsibility for any infringement of patents
or other rights of third parties which may result from its
use. No license or proprietary rights are granted by impli-
cation or otherwise under any patent or patent rights of
Zywyn Corporation.
Power Dissipation Per Package
8-pin NSOIC (derate 6.14mW/°C above +70°C) ... 500mW
8-pin μSOIC (derate 4.85mW/°C above +70°C) ... 390mW
ElectricalCharacteristics
TA = +25°C, VDD = +1.5V, CLAMP = 8200pF with 100Ω series resistance, Coil = 470μH at 4Ω, CINT = 1800pF, COSC = 180pF, unless
otherwise noted.
Symbol
VDD
Parameter
Condition
Min
Typ
1.5
30
Max
1.7
60
Units
V
Supply Voltage
Supply Current
Coil Voltage
HON ties to VDD; See Figure 2
VHON = VDD = +1.5V
1.1
ICOIL
mA
V
VCOIL
VHON
1.1
1.7
HON Input Voltage
LOW: EL off
HIGH: EL on
HON ties to VDD
– 0.25
1.1
0
1.5
0.25
1.7
V
I
HON + IDD
SD = ICOIL
HON+VDD Current
Internal pull-down,
VHON = VDD = +1.5V; See Figure 2
3
5
mA
I
Shutdown Current
VHON = VDD = 0V: VCOIL = +1.5V
1
μA
INDUCTORDRIVE
fCOIL = fLAMP X 64
Coil Frequency
Coil Duty Cycle
Peak Coil Current
25.6
90
kHz
%
IPK-COIL
Guaranteed by design
TA = +25°C, VDD = +1.5V
90
mA
ELLAMPOUTPUT
fLAMP
EL Lamp Frequency
250
120
400
160
600
Hz
V
VPP
Peak-to-Peak Output Voltage TA = +25°C, VDD = +1.5V
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ZSP4425
Electrical Characteristics
TA = +25°C, VDD = +3.0V, CLAMP = 4nF with 100Ω series resistance, Coil = 2mH at 44Ω, CINT = 470pF, COSC = 180pF, unless otherwise
noted.
Symbol
VDD
Parameter
Condition
Min
Typ
3.0
28
Max
4.5
35
Units
V
Supply Voltage
Supply Current
Coil Voltage
2.2
ICOIL + IDD
VCOIL
VHON = VDD = +3.0V
mA
V
VDD
4.5
VHON
HON Input Voltage
LOW: EL off
– 0.25
0
0.25
V
HIGH: EL on
VDD – 0.25 VDD
VDD + 0.25
IHON
HON Current
Internal pull-down,
VHON = VDD = +3.0V; See Figure 4
5
1
20
8
μA
μA
ISD = ICOIL + IDD
Shutdown Current
VHON = 0V
INDUCTOR DRIVE
fCOIL = fLAMP X 64
Coil Frequency
Coil Duty Cycle
Peak Coil Current
28.8
90
kHz
%
IPK-COIL
Guaranteed by design
90
mA
EL LAMP OUTPUT
fLAMP
EL Lamp Frequency
TA = +25°C, VDD = +3.0V
300
450
600
Hz
VPP
Peak-to-Peak Output Voltage TA = +25°C, VDD = +2.2V
TA = +25°C, VDD = +3.0V
120
170
150
190
V
V
Bonding Diagram
VDD
HON
EL1
Notes:
1. Mask number is MS133.
2. Die size is 76 x 46 mils.
3. Die thickness is 11 mils +/- 1.
4. Bonding pads are 125 x 125 microns.
5. Die substrate down-bonds to Vss (GND).
COSC
EL2
D1
76 x 46
MS133
Coil
VSS
Die Photo
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ZSP4425
Block Diagram
VBATTERY
470μH/4Ω
Connects to VBATTERY
or to microcontroller
0.1μF
Low ESR
decoupling
capacitor
>
control output
C
= 1800pF (typ)
INT
1N4148
7
8
3
4
VDD
D1
HON
Coil
1MΩ
OSC
Cap1
1
HV1
HV2
fCOIL
C
= 180pF
OSC
fLAMP
Q
Q
FF1
FF2
fLAMP
VSS
EL1
EL2
5
2
6
EL Lamp
Figure 1. Block Diagram
Pin Description
Pin Number
Pin Name
Pin Function
1
COSC
Capacitor input 1: Connect capacitor from VSS to this pin to set COSC
frequency.
2
3
4
VSS
COIL
D1
Power supply common: Connect to ground.
Coil input: Connect coil from VDD to this pin.
Diode Cathode connection: CINT (Integrator capacitor), connect capacitor
from this pin to ground to minimize coil glitch energy.
5
6
7
EL2
EL1
VDD
Lamp driver output 2: Connect to EL lamp.
Lamp driver output 1: Connect to EL lamp.
Power supply for driver: Connect to system VBATTERY for 2.2~4.5V operation,
or tie with HON pin together connects to system VBATTERY for 1.5V operation.
8
HON
Enable for driver operation: high = active; low = inactive.
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ZSP4425
The f
signal controls a switch that connects the end of
Circuit Description
COIL
the coil at pin 3 to ground or to open circuit. The f
signal is a 90% duty cycle signal switching at the oscillator
frequency. During the time when the f
the coil is connected from V
charged magnetic field is created in the coil. During the
low part of f , the ground connection is switched open,
the field collapses and the energy in the inductor is forced
to flow toward the lamp. f will send 32 of these charge
pulses (see Figure 6) lamp, each pulse increases the
voltage drop across the lamp in discrete steps. As the
voltage potential approaches its maximum, the steps
become smaller (see Figure 5).
COIL
The ZSP4425 is made up of three basic circuit elements,
an oscillator, coil, and switched H-bridge network. The
oscillator provides the device with an on-chip clock source
used to control the charge and discharge phases for the
coil and lamp. An external capacitor connected between
signal is high,
COIL
to ground and a
BATTERY
COIL
pins 1 and V
allows the user to vary the oscillator
SS
frequency. For a given choice of coil inductance there will
be an optimum C capacitor value that gives the maxi-
COIL
OSC
mum light output.
The suggested oscillator frequency is 25.6kHz (C
=180pF). The oscillator output is internally divided to
create the control signal for f . The oscillator output is
internally divided down by 6 flip-flops, a 25.6kHz signal will
bedividedinto6frequencylevels:12.8kHz, 6.4kHz, 3.2kHz,
1.6kHz, 800Hz, and 400Hz. The oscillator output (25.6kHz)
is used to drive the coil (see Figure 2) and the sixth flip-
flop output (300Hz) is used to drive the lamp. Although the
oscillator frequency can be varied to optimize the lamp
OSC
LAMP
The H-bridge consists of two proprietary low on-resistance
high voltage switches. These two switches control the
polarity of how the lamp is charged. The high voltage
switches are controlled by the f
oscillator frequency divided by 64. For a 25.6kHz oscilla-
tor, f = 400Hz. When the energy from the coil is
released, a high voltage spike is created triggering the
high voltage switches. The direction of current flow is
determined by which high voltage is enabled. One full
cycle of the H-bridge will create a voltage step from ground
to 80V (typical) on pins 5 and 6 which are 180 degrees out
of phase with each other (see Figure 7). A differential view
of the outputs is shown in Figure 8.
signal which is the
LAMP
LAMP
output, the ratio of f
/f
will always equal 64.
COIL LAMP
The coil is an external component connected from
to pin 3 of the ZSP4425. V =+1.5VDC
V
BATTERY
BATTERY
with a 470μH/4Ω coil are typical conditions. Energy is
stored in the coil according to the equation E =1/2(LI) ,
2
L
where I is the peak current flowing in the inductor. The
current in the inductor is time dependent and is set by the
“ON” time of the coil switch: I = (V /L)t , where V is the
voltage across the inductor. At the moment the switch
closes, the current in the inductor is zero and the entire
Layout Considerations
L
ON
L
The ZSP4425 circuit board layout must observe careful
analog precautions. For applications with noisy power
supply voltages, a 0.1μF low ESR decoupling capacitor
supply voltage (minus the V
of the switch) is across the
SAT
must be connected from V to ground. Any high voltage
inductor. The current in the inductor will then ramp up at a
linear rate. As the current in the inductor builds up, the
voltage across the inductor will decrease due to the
resistance of the coil and the “ON” resistance of the
DD
traces should be isolated from any digital clock traces or
enable lines. A solid ground plane connection is strongly
recommended. All traces to the coil or to the high voltage
outputs should be kept as short as possible to minimize
capacitive coupling to digital clock lines and to reduce EMI
emissions.
switch: V = V
– IR – V
. Since the voltage
L
BATTERY
L
SAT
across the inductor is decreasing, the current ramp-rate
also decreases which reduces the current in the coil at the
end of t
the energy stored in the inductor per coil cycle
Integrator Capacitor
ON
and therefore the light output. The other important issue is
that maximum current (saturation current) in the coil is set
by the design and manufacturer of the coil. If the param-
An integrating capacitor must be placed from pin 4 (D1) to
ground in order to minimize glitches associated with switch-
ing the coil. A capacitor at this point will collect the high
voltage spikes and will maximize the peak-to-peak voltage
output. High resistance EL lamps will produce more pro-
nounced spiking on the EL output waveform; adding the
eters of the application such as V
, L, R , or t
BATTERY
L ON
cause the current in the coil to increase beyond its rated
, excessive heat will be generated and the power
I
SAT
efficiency will decrease with no additional light output.
C
capacitor will minimize the peaking and increase the
INT
The majority of the current goes through the coil and
voltage output at each coil step. The value of the integrator
capacitor is application specific typical values can range
from 500pF to 0.1μF. No integrator capacitor or very small
values (500pF) will have a minor effect on the output,
whereas a 0.1μF capacitor will cause the output to charge
and discharge rapidly creating a square wave output. For
most applications an 1800pF integrator capacitor is suit-
able.
typically less than 2mA is required for V of the ZSP4425.
DD
V
can range from +1.5V, or +2.2V to +4.5V; it is not
DD
necessary that V = V
. Coils are also a function of
DD
BATTERY
the core material and winding used — performance vari-
ances may be noticeable from different coil suppliers. The
Zywyn ZSP4425 is final tested at 1.5V using a 470μH/4Ω
coil from Toko, and a 2mH/44Ω coil from Matsushita at +3V.
For suggested coil sources, see “Coil Manufacturers.”
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ZSP4425
use is to illuminate displays in dim to dark conditions for
momentary periods of time. EL lamps typically consume
less than LEDs or bulbs making them ideal for battery
powered products. Also, EL lamps are able to evenly light
an area without creating “hot spots” in the display. The
amount of light emitted is a function of the voltage applied
to the lamp, the frequency at which it is applied, the lamp
material used and its size, and lastly, the inductor used.
Both voltage and frequency are directly related to light
output. In other words, as the voltage or the frequency of
the EL output is increased the light output will also in-
crease. The voltage has a much larger impact on light
output than the frequency does. For example, an output
Electroluminescent Technology
WhatisElectroluminescence?
An EL lamp is basically a strip of plastic that is coated with
a phosphorous material which emits light (fluoresces)
when a high voltage (>40V) which was first applied across
it, is removed or reversed. Long periods of DC voltages
applied to the material tend to breakdown the material and
reduce its lifetime. With these considerations in mind, the
ideal signal to drive an EL lamp is a high voltage sine
wave. Traditional approaches to achieving this type of
waveform included discrete circuits incorporating a trans-
former, transistors, and several resistors and capacitors.
This approach is large and bulky, and cannot be imple-
mented in most hand held equipment. Zywyn now offers
low power single chip driver circuits specifically designed
to drive small to medium sized electroluminescent panels
if all that is required is one external inductor fast recovery
diode and two capacitors.
signal of 168V
15Cd/m , in the same application a different EL driver
with a frequency of 500Hz can yield
PP
2
could produce 170V with a frequency of 450Hz and can
PP
2
also yield 15Cd/m . Variations in peak-to- peak voltage
and variations in lamp frequency are to be expected, light
output will also vary from device-to-device however typical
light output variations are usually not visually noticeable.
Electroluminescent backlighting is ideal when used with
LCD displays, keypads, or other backlit readouts. Its main
There are many variables which can be optimized for
specific applications.
Typical Application
Connects to VBATTERY
or to microcontroller
control output
V
BATTERY
0.1μF Low ESR
Single Cell 1.5V Application
Decoupling
Capacitor
V
HON=VDD=ON
HON=0V=OFF
COSC =180pF
HON
VDD
COSC
VIN=1.5V
+
-
VSS
Coil
EL1
EL Lamp
D1
EL2
1.5 sq.in.
4nF
IN4148
NOTE:
CINT=1800pF
ZSP4425
Keep coil as close to
ZSP4425 as possible
NOTE:
Keep high voltage traces
short and away from VDD
and clock lines
Figure 2. Typical Application Circuit At 1.5V Operation
For 1.5V operation, tie HON (pin 8) and V (pin 7) together and connect them to either the system power (V
), or
BATTERY
DD
be driven by the output of a microcontroller capable of sourcing 3mA of current to power on the internal V logic and
DD
enable the HON function of the device.
Contact the factory for additional technical or application support.
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ZSP4425
TestCircuits
V
BATTERY
HON=VDD=VBATTERY=ON
HON=0V=OFF
0.1μF Low ESR
Decoupling
Capacitor
COSC=180pF
HON
VDD
COSC
VSS
Coil
D1
VIN=+1.5V
100Ω
EL1
EL2
8.2nF
IN4148
NOTE:
CINT=1800pF
ZSP4425
Keep coil as close to
ZSP4425 as possible
NOTE:
Keep high voltage traces
short and away from VDD
and clock lines
Figure 3. +1.5V Test Circuit
HON=V DD=ON
HON=0V=OFF
COSC =180pF
HON
VDD
COSC
VSS
VIN=3V
0.1 μF Low ESR
Decoupling
Capacitor
+
-
100Ω
Coil
D1
EL1
EL2
4nF
IN4148
NOTE:
Cint = 470pF
ZSP4425
Keep coil as close to
ZSP4425 as possible
NOTE:
Keep high voltage traces
short and away from VDD
and clock lines
Figure 4. +3.0V Test Circuit
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ZSP4425
Waveforms
VPEAK=80V (typical)
EL1 output; 32 charge steps per half cycle
Figure 5. EL Output Voltage in Discrete Steps at EL1 Output
32 coil pulses per half cycle; 94% duty cycle.
Figure 6. Voltage Pulses Released from the Coil to the EL Driver Circuitry
EL1 Output
-EL2 Output
Figure 7. EL Voltage Waveforms from the EL1 and EL2 Outputs
EL1 Output
VPP=160V
(typical)
-EL2 Output
Differential Representation (EL1-EL2)
Figure 8. EL Differential Output Waveform of the EL1 and EL2 Outputs
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ZSP4425
TypicalPerformanceCharacteristics
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ZSP4425
Murata Electronics Singapore
200 Yishun Ave. 7, Singapore
2776, Republic of Singapore
Phone: 011 657584233
Transflector Material
Astra Products
Mark Bogin
P.O. Box 479
Baldwin, NJ 11510
Phone (516)-223-7500
Coil Manufacturers
Hitachi Metals
Material Trading Division
2101 S. Arlington Heights Road,
Suite 116
Arlington Heights, IL 60005-4142
Phone: 1-800-777-8343 Ext. 12
(847) 364-7200 Ext. 12
Fax:
011 657536181
Fax
(516)-868-2371
Murata Hong Kong
Room 709-712 Miramar Tower, 1
Kimberly Road, Tsimshatsui,
Kowloon, Hong Kong
Fax:
(847) 364-7279
EL Lamp Manufacturers
Leading Edge Ind. Inc.
11578 Encore Circle
Minnetonka, MN 55343
Phone 1-800-845-6992
Phone: 011-85223763898
Hitachi Metals Ltd. Europe
Immernannstrasse 14-16, 40210
Dusseldorf, Germany
Contact: Gary Loos
Phone: 49-211-16009-0
Fax:
011-85223755655
Panasonic.
6550 Katella Ave
Cypress, CA 90630-5102
Phone: (714) 373-7366
Fax:
49-211-16009-29
Midori Mark Ltd.
1-5 Komagata 2-Chome
Taita-Ku 111-0043 Japan
Phone: 81-03-3848-2011
Hitachi Metals Ltd.
Kishimoto Bldg. 2-1, Marunouchi
2-chome, Chiyoda-Ku, Tokyo,
Japan
Contact: Mr. Noboru Abe
Phone: 3-3284-4936
Fax:
(714) 373-7323
Sumida Electric Co., LTD.
5999, New Wilke Road,
Suite #110
Rolling Meadows, IL,60008 U.S.A.
Phone: (847) 956-0666
NEC Corporation
Yumi Saskai
7-1, Shiba 5 Chome, Minato-ku,
Tokyo 108-01, Japan
Phone: (03) 3798-9572
Fax:
3-3287-1945
Fax:
(847) 956-0702
Hitachi Metals Ltd. Singapore
78 Shenton Way #12-01,
Singapore 079120
Contact: Mr. Stan Kaiko
Phone: 222-8077
Fax:
(03) 3798-6134
Sumida Electric Co., LTD.
4-8, Kanamachi 2-Chrome,
Katsushika-ku, Tokyo 125 Japan
Phone: 03-3607-5111
Seiko Precision
Shuzo Abe
1-1, Taihei 4-Chome,
Sumida-ku, Tokyo, 139 Japan
Phone: (03) 5610-7089
Fax:
222-5232
Fax:
03-3607-5144
Hitachi Metals Ltd. Hong Kong
Room 1107, 11/F., West Wing,
Tsim Sha. Tsui Center 66
Mody Road,Tsimshatsui East,
Kowloon, Hong Kong
Fax:
(03) 5610-7177
Sumida Electric Co., LTD.
Block 15, 996, Bendemeer Road
#04-05 to 06, Singapore 339944
Republic of Singapore
Gunze Electronics
2113 Wells Branch Parkway
Austin, TX 78728
Phone: 2724-4188
Phone: 2963388
Fax:
2311-2095
Fax:
2963390
Phone: (512) 752-1299
Fax:
(512) 252-1181
Murata
2200 Lake Park Drive, Smyrna
Georgia 30080 U.S.A.
Phone: (770) 436-1300
Sumida Electric Co., LTD.
14 Floor, Eastern Center, 1065
King’s Road, Quarry Bay,
Hong Kong
Fax:
(770) 436-3030
Phone: 28806688
Fax:
25659600
Murata European
Holbeinstrasse 21-23, 90441
Numberg, Postfachanschrift 90015
Phone: 011-4991166870
Polarizers/Transflector
Manufacturers
Fax:
011-49116687225
Nitto Denko
Yoshi Shinozuka
Bayside Business Park 48500
Fremont, CA. 94538
Phone: 510 445 5400
Murata Taiwan Electronics
225 Chung-Chin Road, Taichung,
Taiwan, R.O.C.
Phone: 011 88642914151
Fax:
011 88644252929
Fax:
510 445-5480
Top Polarizer- NPF F1205DU
Bottom - NPF F4225
or (F4205) P3 w/transflector
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Zywyn Corporation
ZSP4425
Package Information
All package dimensions in inches
8-pin MSOP
8-pin nSOIC
0.0256
BSC
12.0û
4û
0.012
0.003
0.008
0û- 6û
0.006
0.006
0.006
0.006
0.0965
0.003
R .003
0.118
0.002
ZSP4425CU
0.189/0.197
0.16
0.003
3.0û
3û
12.0û
1
0.0215
0.006
0.037
Ref
ZSP4425CN
4û
0.150/0.157
0.228/0.244
0.020
0.020
0.053/0.069
1
2
0.014/0.019
0.050 BSC
0.116
0.004
0.034
0.002
1
0.116
0.004
0.040
0.002
0.013
0.005
0.118
0.004
0.004
0.002
0.118
0.002
95 ZSP4425CN per tube
50 ZSP4425CU per tube
P
W
n
M
SOI
SOP
C
-
-
8 13
"
r
ee
l
l
s
s
:
:
P=
P=
8
mm, W= 12mm
8 13
"
ree
8mm, W= 12mm
Pkg.
Minimum qty per reel
500
Standard qty per reel
2500
Maximum qty per reel
3000
CN and CU
ZywynCorporation
Headquarters and Sales Office
1270 Oakmead Parkway, Suite 201 • Sunnyvale, CA 94085 • Tel: (408) 733-3225 • Fax: (408) 733-3206
Email: sales@zywyn.com • www.zywyn.com
Zywyn Corporation reserves the right to make changes to any products described herein. Zywyn does not assume any liability arising out of the
application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
© 2005 Zywyn Corporation
Zywyn
11
October2005
rev. 04
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