MAX2685EVKIT# Maxim Integrated Products, MAX2685EVKIT# Datasheet

MAX2685EVKIT#

Manufacturer Part Number

MAX2685EVKIT#

Description

RF Modules & Development Tools MAX2685 EVAL KIT MAX2685 EVAL KIT

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX2685EVKIT.pdf (6 pages)

Specifications of MAX2685EVKIT#

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 6
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The MAX2685 evaluation kit (EV kit) simplifies testing of

the MAX2685. This EV kit allows evaluation of the low-

noise amplifier (LNA) as well as the downconverter

mixer.

19-1493; Rev 0; 7/99

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

For small orders, phone 1-800-835-8769.

IFOUT-, LNAIN,

DESIGNATION

LNAOUT, LO,

C2, C14, C15

C6, C7, C10

C1, C3, C5,

R6, R7, R8

GND, V

C11, C18

JU1, JU2

IFOUT+,

C4, C8

R1, R2

MIXIN

None

C17

C12

C13

C16

QTY

________________________________________________________________ Maxim Integrated Products

0.1µF ceramic capacitors

Not installed

47pF ceramic capacitors

330pF ceramic capacitors

3.3pF ceramic capacitor

6pF ±0.1pF ceramic capacitors

1000pF ceramic capacitor

12pF ±0.1pF ceramic capacitor

10µF tantalum capacitor

AVX TAJC106K016

12nH inductor

Toko LL1608-SH12NK

680nH ±5% inductor

Coilcraft 1008CS-681XJBC 5%

820nH ±5% inductor

Coilcraft 1008CS-821XJBC 5%

Not installed

1kΩ resistors

75Ω resistor

15kΩ resistor

0Ω resistor

Not installed

SMA connectors (PC edge mount)

3-pin headers

Eyelets

MAX2685EEE (16-pin QSOP)

MAX2685 PC board

General Description

Component List

DESCRIPTION

MAX2685 Evaluation Kit

The MAX2685 EV kit is fully assembled and factory

tested. Follow the instructions in the Connections and

Setup section for proper device evaluation.

This section lists the equipment recommended for veri-

fying the MAX2685’s operation. It is intended as a

guide only; some substitutions are possible.

This step-by-step guide explains how to get the EV kit

operational and how to evaluate both the LNA and the

downconverter mixer.

_________________________Quick Start

MAX2685EVKIT

+2.7V to +5.5V Single-Supply Operation

50Ω SMA Inputs and Outputs

Fully Assembled and Tested

Allows Testing of All Device Functions

Two RF signal generators capable of delivering at

least 0dBm of output power at frequencies to 2GHz

(HP 8648C or equivalent). One generator is required

for the local oscillator (LO) source; the other is

required for the mixer and LNA RF input. Only one

generator is required to operate the LNA.

An RF spectrum analyzer that covers the MAX2685’s

operating frequency range (the HP 8561E, for exam-

ple).

A power supply that can provide up to 100mA at

+2.7V to +5.5V.

An ammeter for measuring the supply current

(optional).

Several 50Ω SMA cables.

PART

Ordering Information

-40°C to +85°C

TEMP. RANGE

Test Equipment Required

Connections and Setup

16 QSOP

IC PACKAGE

Features

Related parts for MAX2685EVKIT#

MAX2685EVKIT# Summary of contents

Page 1

... U1 1 MAX2685EEE (16-pin QSOP) None 1 MAX2685 PC board ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. MAX2685 Evaluation Kit +2.7V to +5.5V Single-Supply Operation 50Ω SMA Inputs and Outputs Fully Assembled and Tested ...

Page 2

MAX2685 Evaluation Kit Low-Noise Amplifier (LNA) SHDN jumper (JU2) on the EV kit to the 1) Connect the “ON” position, SHDN = V . This enables the CC MAX2685. 2) Connect the GAIN jumper (JU1) on the EV kit to ...

Page 3

Gain Control and LNA Bypass Switch Jumper JU1 controls the LNA bypass switch and the overall gain of the MAX2685. Enable the LNA and switch the device to high-gain mode by placing the GAIN jumper (JU1) into the “HI” position, ...

Page 4

MAX2685 Evaluation Kit 12nH LNAIN C2 OPEN R1 1k VCC 0.1 F JU1 GAIN VCC C4 47pF R2 1k VCC 0.1 F JU2 SHDN ...

Page 5

Figure 2. MAX2685 EV Kit Component Placement Guide— Component Side 1.0" Figure 3. MAX2685 EV Kit Pad Placement _______________________________________________________________________________________ MAX2685 Evaluation Kit 1.0" 1.0" Figure 4. MAX2685 EV Kit PC Board Layout—Component Side 5 ...

Page 6

... 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. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1999 Maxim Integrated Products 1.0" ...

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