19-2102; Rev 0; 10/94
XX-XXXX;Rev 0; 7/01
MAX2754 Evaluation Kit
General Description
The MAX2754 evaluation kit (EV kit) simplifies evalua-
tion of the MAX2754 VCO. This kit enables testing of the
device’s RF performance and requires no additional
support circuitry. The signal output uses an SMA con-
nector to facilitate the connection to RF test equipment.
o
Easy Evaluation of MAX2754
o
+2.7V to +5.5V Single-Supply Operation
o
RF Output Matched to 50Ω
o
All Critical Peripheral Components Included
Features
Evaluates: MAX2754
Component List
DESIGNATION
C1
QTY
1
DESCRIPTION
0.33µF ±10% ceramic
capacitor (0603)
Murata GRM36 334K016
1000pF ±10% ceramic
capacitors (0402)
Murata GRM36X7R102K050
Not installed
330pF ±10% ceramic
capacitor (0402)
Murata GRM36X7R331K050
0.1µF ±10% ceramic
capacitor (0603)
Murata GRM39X7R104K016
1kΩ ±5% resistors (0402)
0Ω ±5% resistor (0402)
SMA connectors (edge-mount)
EFJohnson 142-0701-801
Digi-Key J502-ND
Test points, 1-pin header
Mouser 151-203 or equivalent
Jumper, SIP3, 3-pin header
Digi-Key S9000-ND or
equivalent
PART
MAX2754EVKIT
Ordering Information
TEMP. RANGE
-40°C to +85°C
IC PACKAGE
8 µMAX
Test Equipment Required
This section lists the recommended test equipment to
verify operation of the MAX2754. It is intended as a
guide only, and some substitutions are possible.
•
•
•
Three power supplies at +2.7V to +5.5V
An ammeter (optional)
An RF spectrum analyzer (HP 8561E, for example)
that covers the operating frequency range of the
MAX2754, as well as a few harmonics
A 50Ω SMA cable
C2, C4
C3, C5
C6
2
0
1
C7
R1, R2
R4
MOD, OUT
GND, SHDN, TUNE,
V
CC
JU1
1
2
1
2
•
Connections and Setup
This section provides a step-by-step guide to the func-
tions and operation of these EV kits.
1) Connect a DC supply set to +3V (through an amme-
ter, if desired) to the V
CC
and GND terminals on the
EV kit.
2) Apply +3V to the
SHDN
control input.
3) Turn on the DC supply. The supply current should
read about 13.5mA.
4) Connect the VCO output to a spectrum analyzer
with a 50Ω coaxial cable (minimize length).
5) Apply a variable DC voltage to the TUNE input
(+0.4V to +2.4V).
6) Check f
MIN
and f
MAX
on the spectrum analyzer by
varying the tuning voltage.
7) Apply a variable DC voltage to the MOD input
(+0.4V to +2.4V).
8) Check modulation peak frequency deviation on the
spectrum analyzer by varying the modulation volt-
age.
9) Check the output power level (-5dBm typ).
4
1
Component Suppliers
SUPPLIER
Murata Electronics
Taiyo Yuden
PHONE
800-831-9172
408-573-4150
FAX
814-238-0490
408-573-4159
Note:
Please indicate that you are using the MAX2754 when
contacting these component suppliers.
Quick Start
The MAX2754 EV kit is fully assembled and factory test-
ed. Follow the instructions in the
Connections and
Setup
section for proper device evaluation.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX2754 Evaluation Kit
Evaluate: MAX2754
C1
0.33µF
1
V
REG
V
CC
V
CC
8
C6
330pF
7
C5
OPEN
SLIDING CAP.
GND2
6
R2
1kΩ
C4
1000pF
2
3
V
CC
C7
0.1µF
50Ω
V
CC
GND
OUT
SMA
TUNE
R1
1kΩ
2
C2
1000pF
TUNE
U1
OUT
MAX2754
3
MOD
SMA
R4
0Ω
C3
OPEN
GND1
4
MOD
SHDN 5
1
JU1
SHDN
Figure 1. MAX2754 EV Kit Schematic
1.0"
1.0"
Figure 2. MAX2754 EV Kit Component Placement Guide—Top
Silkscreen
Figure 3. MAX2754 EV Kit PC Board Layout—Component Side
1.0"
Figure 4. MAX2754 EV Kit PC Board Layout—Ground Plane 2
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
2
_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2001 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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