General Description

The MAX2021 evaluation kit (EV kit) simplifies the evalu-

ation of the MAX2021 direct upconversion (downconver-

sion) quadrature modulator (demodulator) designed for

RFID handheld and portal readers, as well as single and

multicarrier 750MHz to 1200MHz GSM/EDGE,

tions. It is fully assembled and tested at the factory.

Standard 50Ω SMA connectors are included on the EV

kit’s input and output ports to allow quick and easy eval-

uation on the test bench using RF test equipment.

This document provides a list of test equipment required

to evaluate the device, a straight-forward test procedure

to verify functionality, a description of the EV kit circuit,

the circuit schematic, a bill of materials (BOM) for the kit,

and artwork for each layer of the PCB.

Features

o Fully Assembled and Tested

o 50Ω SMA Connectors on Input and Output Ports

o 750MHz to 1200MHz RF Range

o High-Linearity and Low-Noise Performance

o Broadband Baseband Input/Output

o DC-Coupled Input Provides for Direct DAC/ADC

Interface

MAX2021 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

1

19-0579; Rev 0; 10/06

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.

Ordering Information

PART

TEMP RANGE

IC PACKAGE

MAX2021EVKIT

-40°C to +85°C

36 QFN-EP*

DESIGNATION

QTY

DESCRIPTION

C1, C6, C7,

C10, C13

5

33pF ±5%, 50V C0G ceramic

capacitors (0402)

Murata GRM1555C1H330J

C2, C5, C8,

C11, C12

5

0.1µF ±10%, 16V X7R ceramic

capacitors (0603)

Murata GRM188R71C104K

C3

1

82pF ±5%, 50V C0G ceramic

capacitor (0402)

Murata GRM1555C1H820J

C9

1

8.2pF ±0.25pF, 50V C0G ceramic

capacitor (0402)

Murata GRM1555C1H8R2C

C14–C25

0

Not installed

J1–J6

6

PCB edge-mounted SMA RF

connectors

(flat-tab launch)

Johnson 142-0741-856

J7, J8

2

Headers 1 x 3 (0.100 spacing

0.062in thick board)

L1–L4

0

Not installed

R1

1

432

Ω ±1% resistor (0402)

Any

DESIGNATION

QTY

DESCRIPTION

R2

1

619

Ω ±1% resistor (0402)

Any

R3

1

332

Ω ±1% resistor (0402)

Any

R4–R11

0

Not installed

TP1

1

Large test point for 0.062in PCB

(red)

Mouser 151-107-RC

TP2

1

Large test point for 0.062in PCB

(black)

Mouser 151-103-RC

TP3, TP4

2

Large test point for 0.062in PCB

(white)

Mouser 151-101-RC

U1

1

Mod/Demod IC (6mm x 6mm,

36-pin QFN exposed paddle)

Maxim MAX2021ETX+

Note: U1 has an exposed paddle

conductor that requires it to be

solder attached to a grounded

pad on the circuit board to

ensure a proper

electrical/thermal design.

*

EP = Exposed paddle.

cdma2000 is a registered trademark of Telecommunications

Industry Association.

iDEN is a registered trademark of Motorola, Inc.

Component List