Quick Start

The MAX2140 EV kit is fully assembled and factory test-

ed. Follow the instructions in the Connections and

Setup section for proper device evaluation.

Test Equipment Required

This section lists the recommended test equipment to

verify operation of the MAX2140. It is intended as a

guide only, and some substitutions are possible:

• One RF signal generator capable of delivering at

least +5dBm of output power at the operating fre-

quency (HPE4433B, or equivalent)

• One RF power sensor capable of handling at least

+20dBm of output power at the operating frequency

(HP 8482A, or equivalent)

• One RF power meter capable of measuring up to

+20dBm of output power at the operating frequency

(HP 437B, or equivalent)

• An RF spectrum analyzer that covers the MAX2140

operating frequency range, as well as a few harmon-

ics (FSEB20, for example)

•A power supply capable of up to 1A at +2.7V to

+6.0V

• One ammeter for measuring the supply current

(optional)

•50Ω SMA cables

•A network analyzer (HP 8753D, for example) to mea-

sure small-signal return loss and gain (optional)

MAX2140 Evaluation Kit

2

_______________________________________________________________________________________

DESIGNATION

QTY

DESCRIPTION

L11

1

22nH

±5% inductor

0603CS-22NXJBC

L12

1

33nH, 25 0402 inductor

Murata LQP15MN33NG00

L13

1

Open

R1

1

0

Ω 0603 resistor

R4, R12, R15,

R20

4

51.1

Ω 0603 resistors

R8, R9

2

Open

R25, R26, R32,

R33, R39

5

100

Ω 0603 resistors

R30, R31, R40,

R41

4

5.1k

Ω 0603 resistors

+5V, -5V, GND

3

2-pin headers

Digi-Key 1 x 2 header S1012-36-ND

ADR1, ADR2,

JU1, VCC

4

Jumper blocks using 3-pin SIP

headers

Digi-Key 1 x 3 header S1012-36-ND

I, Q

2

50

Ω BNC PC board receptacles

(jacks)

Amphenol 31-5239-52RFX

JRFIN, PWM,

REFIN,

REF_TEST,

SAWIN,

SAWOUT

6

SMA end launch jack receptacles

0.062in

Johnson 142-0701-801

Component List (continued)

DESIGNATION

QTY

DESCRIPTION

LOCK, RFAGC,

VINANT,

VOUTANT

4

Jumper blocks, 2-pin two 0.1in

spacing 1 x 2 headers

Digi-Key S1012-36-nd

TCL, TDA,

TGND

3

Jumper blocks, 2-pin 0.1in spacing

Digi-Key 5000K-ND

U1

1

Maxim MAX2140ETH

U2, U3

2

Differential to single-ended line

receivers

MAX4444ESE

U4

1

259.861MHz saw filter

RF Monolithics, Inc. SF2025B

U5

1

Low-dropout linear regulator

MAX8877EUK28

U6

1

Buffer/line driver

Texas Instruments

SN74LVTH244ADBR

U7

1

2338.755MHz multilayer chip

bandpass filter

TOKO LTF3216BU-F2R3B

U8

1

Closed-loop buffer

MAX4178EUK-T

Y2

1

23.92MHz crystal

Epson Q24FA23H0000701