Quick Start

The following procedures allow for proper device

evaluation.

Required Test Equipment

•

Regulated power supply capable of providing

+3.3V

•

RF signal generator capable of delivering from

-120dBm to 0dBm of output power at the operating

frequency, in addition to AM or pulse-modulation

capabilities (Agilent E4420B or equivalent)

•

Optional ammeter for measuring supply current

•

Oscilloscope

Connections and Setup

This section provides a step-by-step guide to operating

the EV kit and testing the device’s functionality. Do not

turn on the DC power or RF signal generator until all

connections are made:

1) Connect a DC supply set to +3.3V (through an

ammeter if desired) to the VDD and GND terminals

on the EV kit. Do not turn on the supply.

2) Connect the RF signal generator to the RF_IN SMA

connector. Do not turn on the generator output. Set

the generator for an output frequency of 315MHz

(or 433.92MHz) at a power level of -100dBm. Set

the modulation of the generator to provide a 2kHz,

100%, AM-modulated square wave (or a 2kHz

pulse-modulated signal).

3) Connect the oscilloscope to test point TP3.

4) Turn on the DC supply. The supply current should

read approximately 5mA.

5) Activate the RF generator’s output without modula-

tion. The scope should display a DC voltage that

varies from approximately 1.2V to 2.0V as the RF

generator amplitude is changed from -115dBm to

0dBm. (Note: At an amplitude of around -60dBm,

this DC voltage drops suddenly to approximately

1.5V and then starts rising again with increasing

input amplitude. This is normal; the AGC is turning

on the LNA gain-reduction resistor.)

6) Set the RF generator to -100dBm. Activate the RF

generator’s modulation and set the scope’s cou-

MAX7033 Evaluation Kit

2

_______________________________________________________________________________________

DESIGNATION

QTY

DESCRIPTION

R7

1

0

Ω resistor (0603)

R8

1

10k

Ω resistor (0603), any

RF_IN

1

SMA connector, top mount

Digi-Key J500-ND

Johnson 142-0701-201

TP2, TP4–TP12

0

Not installed

VDD, GND,

SHDN,

AGC

_C,

DATA_OUT, TP3

6

Test points

Mouser 151-203 or equivalent

Y1

(315MHz)

1

4.754687MHz crystal

Hong Kong Crystals

SSL4754687E03FAFZ8A0 or

Crystek 016867

Y1

(433MHz)

1

6.6128MHz crystal

Hong Kong Crystals

SSL6612813E03FAFZ8A0 or

Crystek 016868

Y2

1

10.7MHz ceramic filter

Murata SFTLA10M7FA00-B0

U1

1

MAX7033EUI

—

1

MAX7033 EV kit PC board

—

5

Shunts (JU1)

Digi-Key S9000-ND or equivalent

DESIGNATION

QTY

DESCRIPTION

JU3, JU4

0

Not installed

JU7

1

2-pin header

JU8

1

Shorted

L1

(315MHz)

1

27nH

±5% inductor (0603)

Coilcraft 0603CS-27NXJB

L1

(433MHz)

1

15nH

±5% inductor (0603)

Coilcraft 0603CS-15NXJB

L2

(315MHz)

1

120nH

±5% inductor (0603)

Coilcraft 0603CS-R12XJB

L2

(433MHz)

1

56nH

±5% inductor (0603)

Coilcraft 0603CS-56NXJB

L3

1

15nH

±5% inductor (0603)

Murata LQG18HN15NJ00

MIX_OUT

0

Not installed, SMA connector, top

mount

Digi-Key J500-ND

Johnson 142-0701-201

R1

1

5.1k

Ω resistor (0603), any

R2, R4, R6

0

Not installed, resistors (0603)

R3

0

Not installed, 270

Ω resistor (0603)

any

R5

1

10k

Ω resistor (0603), any

Component List (continued)