MAX2538EVKIT [MAXIM]

Quadruple-Mode LNA/Mixer Evaluation Kits ; 四模式LNA /混频器评估套件\n


型号：	MAX2538EVKIT
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	Quadruple-Mode LNA/Mixer Evaluation Kits 四模式LNA /混频器评估套件\n
文件：	总7页 (文件大小：512K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

19-2521; Rev 0; 7/02

Quadruple-Mode LNA/Mixer Evaluation Kits

General Description

Features

The MAX2530/MAX2531/MAX2538 evaluation kits (EV

kits) simplify evaluation of the MAX2351/MAX2354/

MAX2358/MAX2359/MAX2530/MAX2531/MAX2537/

MAX2538 high-performance, silicon germanium (SiGe)

BiCMOS, quad-mode LNA/mixer ICs. They enable test-

ing of the devices’ RF performance and require no

additional support circuitry. The signal inputs and out-

puts use SMA connectors to simplify the connection of

RF test equipment.

ꢀ 50 SMA Ports for Easy Testing

ꢀ 2.7V to 3.3V Single-Supply Operation

ꢀ Matched to Cellular, PCS, and GPS Bands

ꢀ Fully Assembled and Tested

The MAX2530/MAX2531/MAX2538 EV kits are assem-

bled with an associated IC and incorporate input- and

output-matching components optimized for the 869MHz

to 894MHz cellular frequency band, 1930MHz to

1990MHz PCS frequency band, 1575.42MHz GPS fre-

quency band, and 183.6MHz IF output frequency. All

matching components can be changed to work at other

frequencies.

Ordering Information

PART

TEMP RANGE

-40 C to +85 C

IC PACKAGE

28 QFN-EP*

MAX2530EVKIT

MAX2531EVKIT

MAX2538EVKIT

*EP = Exposed pad.

Use the Evaluation Kit Selector Guide to determine which

EV kit to order based on the application. For example,

to evaluate the MAX2354, use the MAX2530EVKIT.

Component List

DESIGNATION

QTY

DESCRIPTION

DESIGNATION

QTY

DESCRIPTION

2.4pF 0.1pF ꢀapaꢀitor

Murata GRP1555C1H2R4B

BAND, BUF_EN,

G1, G2, IF_SEL,

MODE, PLL_EN,

SHDN

C17

3-pin headers

6800pF 10ꢁ ꢀapaꢀitors

Murata GRP155R71E682K

C25–C29

CLNA_IN,

CLNA_OUT,

CMIX_IN, GLNA_IN,

GLNA_OUT,

GMIX_IN, GPS_IF,

IF1, IFO, LO_IN,

LO_OUT, PLL_OUT,

PLNA_IN,

C1, C2, C5, C9,

C10, C14

2.7pF 0.1pF ꢀapaꢀitors

Murata GRP1555C1H2R7B

8.2pF 0.1pF ꢀapaꢀitor

Murata GRP1555C1H8R2B

SMA ꢀonneꢀtors, edge mount

10µF, 16V ꢀapaꢀitor

Panasoniꢀ ECS-T1CX106R

1.8pF 0.1pF ꢀapaꢀitor

Murata GRP1555C1H1R8B

PLNA_OUT,

PMIX_IN

1000pF 10ꢁ ꢀapaꢀitors

Murata GRP155R71H102K

GND, VCC

JU1, JU2

2-pin headers

C7, C8, C13, C24

C11

1000nF 10ꢁ ꢀapaꢀitor

Murata GRM188F51A105Z

L1, L3, L6, L7, L8,

L13

120nH 5ꢁ induꢀtors ꢂ0603ꢃ

Coilꢀraft 0603CS-R12XJB

100pF 5ꢁ ꢀapaꢀitors

Murata GRP1555C1H101J

3.3nH 5ꢁ induꢀtors ꢂ0402ꢃ

Coilꢀraft 0402CS-3N3XJB

C12, C16

C15

L2, L14

1.2pF 0.1pF ꢀapaꢀitor

Murata GRP1555C1H1R2B

1.0nH 5ꢁ induꢀtor ꢂ0402ꢃ

Coilꢀraft 0402CS-1N0XJB

________________________________________________________________ Maxim Integrated Products

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.

Quadruple-Mode LNA/Mixer Evaluation Kits

• A power supply ꢀapable of 50mA at 2.7V to 3.3V

Component List (continued)

• ꢂOptionalꢃ An ammeter for measuring the supply

DESIGNATION

QTY

DESCRIPTION

ꢀurrent

7.5nH 5ꢁ induꢀtor ꢂ0402ꢃ

Coilꢀraft 0402CS-7N5XJB

• 50 SMA ꢀables

• ꢂOptionalꢃ A network analyzer ꢂHP 8753D, for exam-

R1, R3

3.3k

8.2k

10k

20k

1ꢁ resistors ꢂ0402ꢃ

1ꢁ resistor ꢂ0402ꢃ

5ꢁ resistor ꢂ0402ꢃ

1ꢁ resistor ꢂ0402ꢃ

pleꢃ to measure small-signal return loss and gain

Connections and Setup

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

the EV kits and testing the deviꢀes’ funꢀtions. Do not

turn on DC power or RF signal generators until all ꢀon-

neꢀtions are made.

R15

4:1 balun transformers

Toko 617DB-1018

T1, T2, T3

MAX2530ETI for MAX2530EVKIT

MAX2531ETI for MAX2531EVKIT

MAX2538ETI for MAX2538EVKIT

Testing the LNA

1ꢃ Set the jumpers for the desired mode aꢀꢀording to

Table 1 and Table 2.

2ꢃ Conneꢀt a DC supply ꢂpreset to 2.75Vꢃ to the V

and GND terminals ꢂthrough an ammeter, if desiredꢃ

Evaluation Kit Selector Guide

on the EV kit.

3ꢃ Set the RF generator and speꢀtrum analyzer to oper-

ate at the frequenꢀy of 881MHz for ꢀellular,

1960MHz for PCS, or 1575.42MHz for GPS at a

power level of -30dBm.

TO EVALUATE

MAX2351

MAX2354

MAX2358

MAX2359

MAX2530

MAX2531

MAX2537

MAX2538

USE

MAX2531EVKIT

MAX2530EVKIT

MAX2538EVKIT

MAX2530EVKIT

MAX2531EVKIT

MAX2538EVKIT

4ꢃ Conneꢀt the output of the RF generator to the

respeꢀtive LNA SMA ꢀonneꢀtor, and ꢀonneꢀt the

ꢀoaxial ꢀable from the LNA output SMA ꢀonneꢀtor to

the speꢀtrum analyzer.

5ꢃ Turn on the DC supply and aꢀtivate the RF generator’s

output.

6ꢃ The signal that appears on the speꢀtrum analyzer

should have a magnitude of approximately -15dBm

in high-gain mode.

Quick Start

The MAX2530/MAX2531/MAX2538 EV kits are fully

assembled and faꢀtory tested. Follow the instruꢀtions in

the Connections and Setup seꢀtion for proper deviꢀe

evaluation. Figure 1 shows the sꢀhematiꢀ. Figures 2

through 7 are ꢀomponent plaꢀement guides and PC

board layouts.

7ꢃ ꢂOptionalꢃ Another method for determining the gain

is using a network analyzer. This has the advantage

of displaying gain vs. a swept frequenꢀy band, in

addition to displaying input and output return loss.

Refer to the user manual of the network analyzer for

setup details.

Test Equipment Required

This seꢀtion lists the test equipment reꢀommended to

verify operation of the MAX2530/MAX2531/MAX2538

EV kits. It is intended as a guide only, and some substi-

tutions are possible.

Testing the Mixer

1ꢃ Set the jumpers for the desired mode aꢀꢀording to

Table 1 and Table 2.

2ꢃ Conneꢀt a DC supply ꢂpreset to 2.75Vꢃ to the V

and GND terminals ꢂthrough an ammeter, if desiredꢃ

on the EV kit.

• Two RF signal generators ꢀapable of delivering

0dBm of output power up to 2.5GHz ꢂHP 8648C or

equivalentꢃ

3ꢃ Set one RF generator for an output frequenꢀy

of 881MHz for ꢀellular, 1960MHz for PCS, or

1575.42MHz for GPS at a power level of -30dBm.

Conneꢀt the output of this generator to the respeꢀ-

tive mixer input SMA ꢀonneꢀtor.

• An RF speꢀtrum analyzer ꢀapable of ꢀovering the

operating frequenꢀy range of the deviꢀes as well as

a few harmoniꢀs ꢂHP 8561E, for exampleꢃ

_______________________________________________________________________________________

Quadruple-Mode LNA/Mixer Evaluation Kits

4ꢃ Set a seꢀond RF generator output frequenꢀy

Layout

aꢀꢀording to Table 3, and ꢀonneꢀt it to the LO input

A good PC board layout is an essential part of an RF ꢀir-

port ꢂLO_INꢃ.

ꢀuit design. The EV kit PC board ꢀan serve as a guide

5ꢃ Conneꢀt the ꢀoaxial ꢀable from the desired IF port

SMA ꢀonneꢀtor to the speꢀtrum analyzer. See Table

2 for IF port and jumper settings.

for laying out a board using the MAX2351/MAX2354/

MAX2358/MAX2359/MAX2530/MAX2531/MAX2537/

MAX2538. Put a deꢀoupling ꢀapaꢀitor ꢀlose to the

deviꢀe’s VCC pin to minimize supply ꢀoupling. Proper

grounding of the GND pin is essential. Conneꢀt the

GND pin to the ground plane either direꢀtly or through

vias as ꢀlose to the pin as possible. Keep traꢀes ꢀarry-

ing RF signals as short as possible to minimize radiation

and insertion loss. Keep the differential mixer output

traꢀes together and of equal length to ensure signal bal-

anꢀe. Solder the entire bottom-side exposed pad evenly

to the board ground plane for proper deviꢀe operation.

Run the LNA input traꢀe on the top layer of the PC

board to avoid via-induꢀed ꢀoupling. Minimize parallel

RF traꢀes to improve ꢀoupling loss and isolation. Use

abundant ground vias between RF traꢀes to minimize

undesired ꢀoupling.

6ꢃ Set the speꢀtrum analyzer ꢀenter frequenꢀy to

183.6MHz.

7ꢃ Turn on the DC supply and aꢀtivate the RF genera-

tors’ outputs.

8ꢃ The signal that appears on the speꢀtrum analyzer

should have an amplitude of approximately -17dBm

in high-gain mode.

Table 1. Modes of Operation

BAND

OPERATING MODE

IF_SEL

MODE

BAND

0 = IF0

1 = IF1

High gain/high linearity

0 = IF0

1 = IF1

High gain/low linearity

Midgain

0 = IF0

1 = IF1

Cellular

0 = IF0

1 = IF1

Low gain

0 = IF0

1 = IF1

Ultra-low gain

High gain/high linearity

Low gain

0 = IF0

1 = IF1

0 = IF0

1 = IF1

PCS

0 = IF0

1 = IF1

Ultra-low gain

GPS

X = Don’t care.

_______________________________________________________________________________________

Quadruple-Mode LNA/Mixer Evaluation Kits

Table 2. Jumper Settings

NAME

BUF_EN

FUNCTION

LO Buffer Enable. On enables the LO buffer output, off disables LO buffer.

Set deviꢀe operating modes aꢀꢀording to Table 1.

G1, G2, MODE, BAND

IF_SEL

Seleꢀts IF Port. 0 seleꢀts IF0 port, 1 seleꢀts IF1 port.

JU1

for PCS LNA. Can be used for monitoring the LNA ꢀurrent.

for IF Ports. Can be used for monitoring the mixer ꢀurrent.

JU2

PLL_EN

PLL Enable. On enables the PLL drive output, off disables the PLL drive output.

Shutdown. On for normal operation, off to shut down the deviꢀe.

SHDN

Table 3. LO input (LO_IN) Frequency for Mixer Testing

PART

CELL (MHz)

1064.6

PCS (MHz)

2143.6

GPS (MHz)

2087.73

LO GENERATION

—

MAX2530

MAX2531

MAX2538

1064.6

1071.8

1043.865

2087.73

LO multiplier

LO divider

2129.2

2143.6

Component Suppliers

SUPPLIER

PHONE

FAX

WEBSITE

www.avxꢀorp.ꢀom

www.ꢀoilꢀraft.ꢀom

www.murata.ꢀom

www.t-yuden.ꢀom

www.toko.ꢀom

AVX

843-448-9411

847-639-6400

770-436-1300

800-348-2496

847-297-0070

803-626-3123

803-639-1469

770-436-3030

847-925-0899

847-699-7864

Coilꢀraft

Murata

Taiyo Yuden

Toko

_______________________________________________________________________________________

Quadruple-Mode LNA/Mixer Evaluation Kits

Figure 1. MAX2530/MAX2531/MAX2538 EV Kits Schematic

_______________________________________________________________________________________

Quadruple-Mode LNA/Mixer Evaluation Kits

1.0"

Figure 2. MAX2530/MAX2531/MAX2538 EV Kits Component

Placement Guide—Component Side

Figure 3. MAX2530/MAX2531/MAX2538 EV Kits PC Board

Layout—Component Side

1.0"

Figure 5. MAX2530/MAX2531/MAX2538 EV Kits PC Board

Layout—Ground Plane Layer 2

Figure 4. MAX2530/MAX2531/MAX2538 EV Kits PC Board

Layout—Solder Side

_______________________________________________________________________________________

Quadruple-Mode LNA/Mixer Evaluation Kits

1.0"

Figure 6. MAX2530/MAX2531/MAX2538 EV Kits PC Board

Layout—Ground Plane Layer 3

Figure 7. MAX2530/MAX2531/MAX2538 EV Kits Component

Placement Guide—Solder Side

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.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 7

Printed USA

is a registered trademark of Maxim Integrated Produꢀts.

MAX2538EVKIT [MAXIM]

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