_________________________Quick Start

The following section provides instructions for setting

up the MAX2602 EV kit as a 1W RF power amplifier.

Test Equipment Required

•

RF signal generator capable of at least 20dBm of

output power at 836MHz

•

Attenuator that can handle at least 30dBm (1W) of

RF power (used to protect the test equipment)

•

RF spectrum analyzer for use at 836MHz (alterna-

tively, a power meter can be used)

•

DC power supply capable of delivering 1A at +2.7V

to +5.5V

Connections and Setup

Follow these steps for connecting the EV kit:

1) Connect a 50

Ω RF signal generator capable of sup-

plying at least 20dBm at 836MHz to the RF input

SMA connector (“IN”). Set the generator’s initial out-

put to a much lower power (-10dBm, for instance).

Keep this generator’s RF output off at this time.

2) Connect a fixed attenuator that can handle 1W of

power to the output SMA connector (“OUT”). This

attenuator reduces the power to the test equipment

and protects it from overload. Connect this attenua-

tor’s output to a spectrum analyzer that is set to dis-

play 836MHz. It may be possible to set a reference-

level offset on the analyzer to compensate for the

attenuator. Consult your spectrum analyzer’s manu-

al for details.

3) Set the power supply to +3.6V with a 1A current

limit. Disable the output. Connect the power supply

_______________General Description

The MAX2602 evaluation kit (EV kit) simplifies the evalu-

ation of the MAX2602 1W RF power transistor for

900MHz band applications. The EV kit demonstrates

the MAX2602 in a 3.6V, 836MHz, 1W (30dBm) RF

power amplifier for constant-envelope applications.

The EV kit is shipped with a MAX2602, which contains

an internal biasing diode. With a simple modification,

the MAX2602 EV kit can be used to emulate the

MAX2601, which does not have an internal biasing

diode.

____________________________Features

o 1W (30dBm) Output Power at 836MHz

o 50

Ω Inputs and Outputs

o +2.7V to +5.5V Supply Range

o 11dB Gain at 836MHz

MAX2602 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

1

PART

TEMP. RANGE

BOARD TYPE

MAX2602EVKIT-SO

-40°C to +85°C

Surface Mount

QTY

DESCRIPTION

C1, C2

2

C3

1

C4

1

12pF surface-mount capacitor

C5–C8,

C11, C12

6

C9, C11

2

0.1µF surface-mount capacitors

L1

1

L2

1

R1

1

R2

1

24

Ω surface-mount resistor

R3

1

0

Ω resistor

IN, OUT

2

Edge-mount SMA connectors

U1

1

MAX2602ESA (8-pin, thermally

enhanced SO)

1000pF surface-mount capacitors

10pF surface-mount capacitor

2pF surface-mount capacitors

DESIGNATION

100nH surface-mount inductor

18.5nH surface-mount spring inductor

Coilcraft A05T (Note 1)

430

Ω surface-mount resistor

____________________Component List

______________Ordering Information

None

1

MAX2601/MAX2602 data sheet

None

1

Printed circuit board

Note 1: Contact Coilcraft by phone at (800) 322-2645, by fax at

(847) 639-1469, or on the World Wide Web at

http://www.coilcraft.com.

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.