DC1649A - Demo Manual

DEMO MANUAL DC1649A
LTC6945
Ultralow Noise and Spurious
Integer-N Synthesizer
DESCRIPTION
®
Demonstration circuit 1649A features the LTC 6945, an
ultralow noise and spurious integer-N synthesizer.
DC1649A provides 50Ω SMA connectors for the reference
frequency (REF+), the reference output buffer (REFO),
and the two single-ended RF outputs (RF+ and RF–).
Demonstration circuit 590 is used for SPI communication
with the LTC6945, controlled by the supplied PLLWizard™
software.
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PLLWizard and QuikEval are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
Figure 1. DC1649A Inputs and Outputs
dc1649afa
1
DEMO MANUAL DC1649A
TYPICAL DC1649A REQUIREMENTS AND CHARACTERISTICS
PARAMETER
INPUT OR OUTPUT
PHYSICAL LOCATION
DETAILS
3.3V Power Supply
Input
J9 and J10 Banana Jacks
Low Noise and Spur-Free 3.3V, 95mA
5V Charge Pump Power Supply
Input
J11 and J12 Banana Jacks
Low Noise and Spur-Free 5V, 35mA
5V VCO Power Supply
Input
“V+VCO” Turret
Low Noise and Spur-Free 5V, 18mA
REF+, Reference Frequency
Input
J2 SMA Connector
Low Noise 10MHz or 100MHz*, 6dBm into
50Ω, See Note 1
REFO, Buffered Reference
Output
J1 SMA Connector
Frequency = fREF, 0dBm
RF+ and RF–
Two Outputs
J6 and J7 SMA Connectors
902MHz to 928MHz* in 250kHz* Steps, 0dBm
Set by Loop Filter Component Values
7kHz*
Loop Bandwidth
*These frequencies are for the “DC1649A-10MHz.pllset “or” DC1649A-100MHz.pllset” files and included VCO.
Note 1: A low noise 10MHz or 100MHz reference frequency, such as the
Wenzel 501-04608A or 501-04516D OCXO, is recommended. If using a
different frequency, make sure to update the Fref and R_DIV boxes under
the System tab in PLLWizard so that Fpfd is still 250kHz. For example, if a
20MHz clock is used, Fref should be changed to 20MHz and R_DIV to 80.
Ref BST and FILT under the System tab in PLLWizard might need to be
changed if the reference frequency and/or power is different than what is
recommended in the table above. More information can be found in the
LTC6945 data sheet.
QUICK START PROCEDURE
The DC590 and PLLWizard application are required to
control the DC1649A through a personal computer (PC).
DC590B Configuration
The DC590’s QuikEval™ drivers must be installed before
the DC590 will be able to communicate with the LTC6945.
To configure the DC590, follow the procedure below, starting with Step 1. If you have already installed the DC590
software previously, skip to Step 5.
Note: Once the QuikEval software is installed, the application Does Not need to be executed to run PLLWizard or to
control the DC1649A.
1. Do Not plug in the DC590 before running the installation
program.
2. Download the QuikEval installation program from
http://www.linear.com/software.
3. Run the QuikEval installation program and follow the
on-screen instructions. More detailed installation information may be found in the DC590’s Quick Start guide.
4. Exit the QuikEval program once the installation is complete, as it is not needed to run the PLLWizard software.
5. Place the DC590 jumpers in the following positions:
JP4 - EE Must be in the “EN” position.
JP5 - ISO ”ON” must be selected.
JP5 - SW ”ON” must be selected.
JP6 - VCCIO “3.3V” must be selected. This sets the SPI
port to 3.3V operation.
6. Connect the DC590 to one of your computer’s USB
ports with the included USB cable.
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2
DEMO MANUAL DC1649A
QUICK START PROCEDURE
Figure 2. DC590 Jumper and Connector Locations
PLLWizard Installation
The PLLWizard software is used to communicate with
the LTC6945 synthesizer. It uses the DC590 to translate
between USB and SPI-compatible serial communications
formats. It also includes advanced PLL design and simulation capabilities. The following are the PLLWizard system
requirements:
n
Windows Operating System: Windows XP, Windows
2003 Server, Windows Vista, Windows 7
n
Microsoft .NET 2.0 or later
n
Windows Installer 3.1 or later
n
Linear Technology’s QuikEval and DC590 hardware
Microsoft .NET
You must have Microsoft .NET 2.0 or later installed on
your computer. PLLWizard will not run without it. Note
that Windows Vista and Windows 7 have at least version
3.5 preinstalled.
To manually determine your version of .NET using Windows XP, click
Start Menu → Settings → Control Panel → Add or
Remove Programs
Depending upon your .NET version, choose one of
two PLLWizard setup programs, downloaded from
http://www.linear.com/software.
Either setup program will automatically install Microsoft
.NET if a compatible .NET version is not found. But, the
installation source depends upon which file you downloaded from Linear Technology’s website. You should pick
one of the following two choices, depending upon your
version of .NET.
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3
DEMO MANUAL DC1649A
QUICK START PROCEDURE
Table 1. PLLWizard Installation File
DC1649A Configuration
FILE
.NET 2.0 SOURCE
PLLWizardSetup.exe
latest version downloaded from
Microsoft
PLLWizardSetup_net20.exe
2.0 SP2 included (much larger file size)
1. Connect an appropriate reference frequency source (at
J2) and signal analyzers (at J6 and/or J7) using the
SMA connectors (see Figure 1 and the Typical DC1649A
Requirements and Characteristics table).
n
Choose PLLWizardSetup if you have .NET 2.0 or later,
have Windows Vista or Windows 7, or if you have less
than .NET 2.0 but want the latest .NET installed.
2. Choose the MUTE jumper setting: JP1 - GND/3.3V MUTE
position. Select GND to mute the RF output, 3.3V to
un-mute.
n
Choose PLLWizardSetup_net20 if you have less than
.NET 2.0, and want faster installation (no additional
Microsoft downloads are needed, but the file size is
much larger).
3. Connect the GND, 3.3V, and 5V banana jacks and the
“V+VCO” turret to a power supply and apply power (see
Figure 1 and the Typical DC1649A Requirements and
Characteristics table).
The setup file will verify and/or install Microsoft .NET and
install PLLWizard. Refer to the Help menu for software
operation.
4. Connect the DC590 to the DC1649A with the provided
ribbon cable.
5. Run the PLLWizard application.
6. In PLLWizard, click File → Load Settings and point to the
“DC1649A-10MHz.pllset” or “DC1649A-100MHz.pllset”
file found in the PLLWizard installation directory (typically
Program Files → LTC → PLLWizard → Set Files).
The red LED on DC1649A should turn on indicating that
the loop is locked at 914MHz.
Troubleshooting
If the red LED does not illuminate, follow the instructions
below:
1. Verify that you are able to communicate with the
DC1649A. The bottom status line in PLLWizard should
read “LTC6945” and “Comm Enabled”. Refer to PLLWizard’s Troubleshoot and Help if not.
Figure 3. PLLWizard Screenshot
2. Verify that the 3.3V, 5V and “V+VCO” have the correct
voltages on them and that the reference frequency is
applied to the REF+ SMA input.
If the red LED is on but you cannot detect an RF output, make sure jumper JP1 is at the 3.3V position. Run
Help → Troubleshoot in PLLWizard if the problem is not
resolved.
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4
DEMO MANUAL DC1649A
DC1649A RECONFIGURATION
DC1649A is flexible and allows the use of a variety of VCOs
and the choice to employ either an active or passive loop
filter. The following covers the hardware reconfiguration of
DC1649A. Refer to PLLWizard’s Help and the LTC6945 data
sheet to better understand how to change programmed
parameters on the DC1649A.
Installing Different Tunable Devices
DC1649A permits the use of different tunable oscillators,
like VCOs and VCXOs. There are two different oscillator
footprints on the board: U3, which accommodates the
popular 0.5in × 0.5in package, and U4, which accommodates another common 14mm × 9mm package with
four or six pins. An external connectorized VCO can also
drive the LTC6945 through J5. Table 2 gives options to
customize the DC1649’s VCOs. When using an active loop
filter, an additional pole is required in the loop filter to limit
the op amp’s noise contribution to the VCO phase noise.
Selecting Loop Filter Type
DC1649A can use either an active or a passive loop filter,
depending upon the application. Some VCO tuning voltage ranges are greater than the LTC6945 charge pump
voltage range (refer to the LTC6945 data sheet). In such
cases, an active loop filter using an op amp can deliver
the required tuning voltage. Table 3 summarizes these options. PLLWizard helps determine the component values
listed in this table.
Table 2. Oscillator Options
TUNABLE
DEVICE
SELECTION
COMPONENTS
RESISTOR FOR
ADDITIONAL POLE
CAPACITOR FOR
ADDITIONAL POLE
U3
C26 ≅ 100pF, depopulate
R17, C25 and C28
R10 = 0Ω for passive
loop filter
C27 = Open for passive
loop filter
U4
C28 ≅ 100pF, depopulate
R10, C25 and C26
R10 ≅ 100Ω for active
loop filter
Determined by U3
device power supply
specification, up to 24V
Pick C27 such that
1/(2π • R10 • C27) ≅ 15 • applied to “V+VCO” turret
the loop bandwidth in Hz
for active loop filter
R17 = 0Ω for passive
loop filter
C32 = Open for passive
loop filter
R17 ≅ 100Ω for active
loop filter
External
POWER
Determined by U4
device power supply
specification, up to 24V
Pick C32 such that
1/(2π • R17 • C32) ≅ 15 • applied to “V+VCXO”
the loop bandwidth in Hz turret
for active loop filter
ENABLE PIN OR
REMARKS
Use “EN” turret to control
pin 2 of U4
Selection components
are for an active loop
filter. Connect the external
VCO output to J5. Use
“CPGAIN” to tune the
external device
C25 ≅ 100pF, R15 = 0Ω,
depopulate R13, C26
and C28
Table 3. Loop Filter Options
LOOP FILTER
TYPE
SELECTION
RESISTORS
RZ FROM
PLLWizard
CI FROM
PLLWizard
CP FROM
PLLWizard
POWER
CPINV BOX, SYSTEM
TAB IN PLLWizard
Passive
R14 and R16 = 0Ω,
depopulate R13 and
R15
RZ_P
CI1_P in parallel
with CI2_P
CP_P
None
Unchecked
Active
RZ_A
R13 (except when
using an external
VCO) and R15 = 0Ω,
depopulate R14 and
R16
CI1_A in parallel
with CI2_A
CP_A
Determined by the
maximum allowed
tune voltage of the
populated VCO (U3
or U4), up to 24V
applied to “V+OA”
turret
Checked
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5
DEMO MANUAL DC1649A
PARTS LIST
ITEM
1
2
3
4
5
6
7
8
QTY
0
0
1
1
3
4
2
10
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
4
1
2
3
0
5
1
10
1
1
5
0
1
4
0
2
1
5
1
1
4
4
3
0
0
1
1
1
0
2
1
1
4
2
Number of Boards = 325
REFERENCE
CI1_P, CI1_A, C27, C32, CP_A
CI2_A
CI2_P
CP_P
C1, C19, C33
C2, C6, C21, C35
C3, C16
C4, C11, C17, C24, C30, C36, C39,
C41, C43, C44
C5, C12, C18, C31
C7
C8, C15
C23, C34, C45
C25, C28
C26, C29, C37, C38, C42
D1
E3, E6, E11-E18
JP1
XJP1
J1, J2, J5, J6, J7
J3, J4
J8
J9, J10, J11, J12
L1
L2, L3
RZ_P
R1, R2, R25, R26, R27
R4
R5
R7, R8, R18, R19
R9, R10, R14, R16
R12, R21, R22
R13, R15, R17, RZ_A
R23, R24
U1
U2
U3 (1 Reel + 1 Tape, PbF)
U4
U5, U6
U7
U8
4 Corners
PART DESCRIPTION
Opt., 0603
Opt., 1206
Cap., C0G, 0.1μF, 50V, 5%, 1206
Cap., X7R, 8200pF, 50V, 10%, 0603
Cap., Tantalum, 47μF, 35V, 10%, 7361
Cap., X7R, 0.1μF, 50V, 10%, 0805
Cap., Tantalum, 330μF, 10V, 10%,7343
Cap., X5R, 0.1μF, 10V, 10%, 0402
MANUFACTURER/PART NUMBER
Cap., X5R, 1μF, 10V, 10%, 0402
Cap., Tantalum, 47μF, 20V, 10%, 7343
Cap., X7R, 470pF, 50V, 10%, 0402
Cap., X7R, 0.01μF, 16V, 10%, 0402
Opt., 0402
Cap., NPO, 100pF, 16V, 10%, 0402
LED, RED
Turret, Testpoint, 2501
Headers, 3 Pins, 2mm Ctrs.
Shunt, 2mm Ctrs.
Con., SMA 50Ω Edge-Launch
Con., SMA 50Ω Straight Mount
Con., Header, 14 Pin, 2mm
Jack, Banana
Opt., 0402
Ind., Wirebound, 68nH, ±5%, 0402
Res., Chip, 806, 1/10W, 1%, 0603
Res., Chip, 4.99k, 1/16W, 1%, 0402
Res., Chip, 330, 1/16W, 1%, 0402
Res., Chip, 51.1, 1/16W, 1%, 0402
Res., Chip, 200k, 1/16W, 1%, 0402
Res., Chip, 0Ω, 0603
Res., Chip, 100, 1/16W, 1%, 0402
Opt., 0603
Res., Chip, 0402, Opt.
I.C. LTC6945IUFD, QFN28UFD
Low Noise Amp, S0-8
Voltage Controlled Oscillator – VC0
Crystal Oscillator, Opt.
I.C., Dual Buffer, SC-70 6-Lead
I.C., Dual Transceiver, SC-70 6-Lead
I.C., Serial EEPROM, TSSOP-8
Standoff, Nylon, 0.50, 1/2"
Stencils (Top and Bottom)
AVX, 0402ZD105KAT2A
AVX, TAJD476K020RNJ
AVX, 04025C471KAT2A
AVX, 0402YC103KAT2A
Murata, GRM31C5C1H104JA01L
Murata, GRM188R71H822KA01D
AVX, TAJV476K035RNJ
AVX, 08055C104KAT2A
AVX, TPME337K010R0035
AVX, 0402ZD104KAT2A
AVX, 0402YA101KAT2A
Panasonic, LN1251CTR
Mill-Max, 2501-2-00-80-00-00-07-0
Samtec, TMM-103-02-L-S
Samtec, 2SN-BK-G
E. F. Johnson, 142-0701-851
Opt.
Molex, 87831-1420
Keystone, 575-4
Coilcraft, 0402HPH-68NXJL
Vishay, CRCW0603806RFKEA
Vishay, CRCW04024K99FKED
Vishay, CRCW0402330RFKED
Vishay, CRCW040251R1FKED
Vishay, CRCW0402200KFKED
Vishay, CRCW06030000Z0EA
Vishay, CRCW0402100RFKED
Linear Technology Corp., LTC6945IUFD
Linear Technology Corp., LT1678CS8#PBF
Crystek, CVCO55CL-0902-0928
Fairchild Semi., NC7WZ17P6X
NXP, 74LVC1T45GW
Mircochip, 24LC24A-I/ST
Keystone, 8833 (Snap On)
Stencil, DC1649A-4
dc1649afa
6
D
C
B
A
JP1
1
D1
LN1251C
C3
330uF
10V
7343
CVCO55CL-0902-0928
U3
3.3V
R4
330
+
3.3V
VCO
C30
0.1uF
C4
0.1uF
1
2
1. ALL RESISTORS ARE IN OHMS, 0402
ALL CAPACITORS ARE IN MICROFARADS, 0402.
470pF
J7
L2
68nH
RF-
V+D
SDO
SDI
SCLK
CS
STAT
REFO
C8
470pF
R5 51.1
V+REFO
3.3V
8
7
6
5
4
3
2
C15
C24
0.1uF
1
3.3V
3.3V
902 - 928 MHz
2
C11
0.1uF
C5
1.0uF
NOTE: UNLESS OTHERWISE SPECIFIED
-A
SCLK
SDI
SDO
CS
E6
J1
J2
J10
J9
J3
MUTE
ASSY
*
GND
3.3V
STATUS
REF0
REF+
GND
3.3V
CP
OPT
E3
27
CP
3
25
3
C37
100pF
C17
0.1uF
R16
0
0603
R15
OPT
0603
23
2
28
REF9
MUTE
10
REF+
GNDA
26
V+REF
RF-
11
CP
RF+
12
22
J6
RF+
C42
100pF
C26 100pF
3.3V
4
C45
0.01uF
CI2_A
CI1_A
9
10
GND
RFOUT
GND
GND
8
*
OPT
1206
0603
OPT
GND
GND
VTUNE
GND
5
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
C27
OPT
0603
R10
0
0603
6
SCALE = NONE
MICHEL A.
KIM T.
APPROVALS
4
3
2
1
0603
0
R14
0603
OPT
C1
7361
+
47uF
35V
GND
EN
VTUNE
VCC
NC
5
4
0.1uF
47uF
35V
R24
J5
E18
E17
E16
E15
E14
E13
J4
E12
J12
J11
EXT VCO IN
EN
GND
GND
V+VCXO
GND
V+VCO
OPT
CPGAIN
CPGAIN
GND
5V
DATE
11-01-11
DATE:
N/A
SIZE
LTC6945IUFD
DEMO CIRCUIT 1649A
7
11/01/2011, 02:18 PM
IC NO.
8
SHEET 1
OF 2
4
REV.
ULTRALOW NOISE AND SPURIOUS INTEGER-N SYNTHESIZER
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
OPT
R23 OPT
TECHNOLOGY
RFOUT
6
C35
0805
C33
7361
V+VCXO
V+VCO
5V
V+OA
MICHEL A.
E11
APPROVED
DESCRIPTION
8
PRODUCTION
REVISION HISTORY
4
TITLE: SCHEMATIC
3
2
1
7
REV
U4
OPT
ECO
__
C32
OPT
0603
R17
OPT
0603
C2
0.1uF 0805
V+OA
6
R13
V+
7
OUTB
6
-INB
B
5
+INB
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
CUSTOMER NOTICE
L1
OPT
C25
OPT
C28 OPT
V-
C19 V+VCO
47uF
35V
7361
C21 0.1uF
U3
0805
1206
11
C29
100pF
LTC6945IUFD
U1
OPT
RZ_P
806
0603
0603
RZ_A OPT
0603
CI2_P 0.1uF
CI1_P
4
2
OUTA
-INA
A
3
+INA
1
U2
LT1678IS8
CP_A
OPT 0603
C12
1.0uF
12
0.01uF
C38
100pF
C16
330uF CP_P
10V 8200pF
7343
0603
R1
4.99K
5
16
C31 1.0uF
L3
68nH
+
C7 47uF
7343 20V
C6 0.1uF
0805
R2
4.99K
5V
15
17
18
19
20
21
4
3.3V C23
0.01uF
C18
1.0uF
0805
5V
3.3V
C34
VCO-
VCO+
GNDB
GNDC
GNDD
GNDE
GNDF
V+VCO
GND
24
V+CP
V+RF
13
14
29
GNDG
BB
14
13
8
GND
GND
15
GND
GND
7
VCC
GND
16
GND
GND
6
+
+
5
+
1
D
C
B
A
DEMO MANUAL DC1649A
SCHEMATIC DIAGRAM
dc1649afa
7
1
2
3
4
A
1
V+ 2
5V
6
CS 4
SCK/SCL 7
MOSI/SDA 5
MISO
10
EEVCC 9
EESDA 11
EESCL 12
EEGND 14
AUX
J8
HD2X7-079-MOLEX
WP
R25
4.99K
6
5
7
3
2
1
SCL
SDA
WP
A2
A1
A0
U8
24LC025-I /ST
R26
4.99K
R9
0
0603
C43
0.1uF
C
B
C
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
C36
0.1uF
R7
200K
R19
200K
SCALE = NONE
MICHEL A.
KIM T.
APPROVALS
3.3V
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
CUSTOMER NOTICE
NOTE: EEPROM FOR BOARD IDENTIFICATION
EEGND
R27
4.99K
V+DIG CS SCLK SDI SDO
ARRAY
GND
GND
GND
13
8
3
B
EEPROM
8
VCC
8
GND
Note: The buffers shown on sheet 2 of 2 of the schematic are used to
protect the LTC6945 when communicating to it starts before powering it
up. There is no need for such circuitry if the SPI bus is not active before
4
A
3
2
1
VCC
DIR
VCC(B)
5
4
5
6
3.3V
E
SDO
SDI
SCLK
CS
DATE:
N/A
SIZE
LTC6945IUFD
DEMO CIRCUIT 1649A
D
11/01/2011, 02:27 PM
IC NO.
E
SHEET 2
OF 2
4
REV.
ULTRALOW NOISE AND SPURIOUS INTEGER-N SYNTHESIZER
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
R18
200K
C39
0.1uF
C44
0.1uF
R12
100
0.1uF
R22 100
R21
100
C41
3.3V
3.3V
TECHNOLOGY
GND
VCC(A)
U7
74LVC1T45GW
GND
4
3
2
6
1
TITLE: SCHEMATIC
R8
200K
5
2
U6
NC7WZ17P6X
4
3
VCC
6
1
GND
U5
NC7WZ17P6X
DC590B SPI INTERFACE
D
1
2
3
4
DEMO MANUAL DC1649A
SCHEMATIC DIAGRAM
powering up the LTC6945. The EEPROM is for identification and is not
needed to program the LTC6945.
dc1649afa
DEMO MANUAL DC1649A
LAYOUT TOP LAYER
The top metal layer of DC1649A is shown here as an example of good PCB layout for the LTC6945.
dc1649afa
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
9
DEMO MANUAL DC1649A
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
dc1649afa
10 Linear Technology Corporation
LT 0112 REV A • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
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