MAX2112EVKIT+ Datasheet MAX2112EVKIT+ | P1-P3

General Description

The MAX2112 evaluation kit (EV kit) simplifies the test-

ing and evaluation of the IC direct-conversion tuner.

The evaluation kit is fully assembled and tested at the

factory. Standard 50Ω SMA and BNC connectors are

included on the EV kit for the inputs and outputs to

allow quick and easy evaluation on the test bench.

This document provides a list of equipment required to

evaluate the device, a straightforward test procedure to

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

circuit schematic, a component list for the kit, and art-

work for each layer of the PCB.

Features

o Easy Evaluation of the MAX2112

o 50Ω RF Input SMA Connector

o 50Ω Baseband Output BNC Connector

o Single 3.3V ±5% Supply

o I

C 2-Wire Serial Interface

o All Critical Peripheral Components Included

o Fully Assembled and Tested

o PC Control Software

(available at www.maxim-ic.com/evkitsoftware

)

Evaluates: MAX2112

MAX2112 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

19-2071; Rev 1; 5/10

Component List

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART TYPE

MAX2112EVKIT+ EV Kit

Denotes lead(Pb)-free and RoHS compliant.

DESIGNATION QTY DESCRIPTION

ADDR 0

Not installed, 3-pin (1 x 3) inline

header, 0.01in centers

Sullins PEC36SAAN

BB_I_O/P,

BB_Q_O/P

50Ω BNC PC mounts

Amphenol 31-5329-52RFX

BB_IN, BB_IP,

BB_QN, BB_QP,

CP_OUT, J12,

J13, J17,

REF_O/P, VGC

PC mini red test points

Keystone 5000

C1–C6, C9 7

1000pF ±10% ceramic capacitors

(0603)

Murata GRM188R71H102K

C7, C13, C19,

C20, C75

0.1µF ±10% ceramic capacitors

(0603)

Murata GRM188R71C104K

C8, C12,

C25–C30

0 Not installed, capacitors

C10, C11 2

0.047µF ±10% ceramic capacitors

(0603)

Murata GRM188R71C473K

DESIGNATION QTY DESCRIPTION

C14 1

100pF ±5% ceramic capacitor

(0603)

Murata GRM1885C1H101J

C15 1

0.033µF ±10% ceramic capacitor

(0603)

Murata GRM188R71E333K

C16 1

2200pF ±5% ceramic capacitor

(0603)

Murata GRM188R71H222J

C17, C18 2

10µF ±10% tantalum capacitors

(C Case)

AVX TAJC016K016

C22 1

43.2Ω ±1% resistor (0603);

use lead-free parts only

C23, C24, C71,

C72, C73

330pF ±5% ceramic capacitors

(0603)

Murata GRM1885C1H331J

J6 1

DB25 right-angle male connector

AMP 5747238-4

Evaluates: MAX2112

MAX2112 Evaluation Kit

2 _______________________________________________________________________________________

Component List (continued)

DESIGNATION QTY DESCRIPTION

JP_VCC,

VCC_BB,

VCC_DIG,

VCC_LO,

VCC_RF1,

VCC_RF2,

VCC_SYN,

VCC_VCO

Not installed, 2-pin (1 x 2) inline

headers, 0.01in centers

Sullins PEC36SAAN

L1 1

33pF ±5% capacitor (0603)

Murata GRM1885C1H330J

R2, R12, R18,

R19, R20, R22,

R25, R27–R33

0 Not installed, resistors

R3, R7, R15,

R16, R17, R21

0Ω ±5% resistors (0603);

use lead-free parts only

R4, R13, R24 3

1kΩ ±5% resistors (0603);

use lead-free parts only

R5 1

820Ω ±5% resistor (0603);

use lead-free parts only

R6 1

390Ω ±5% resistor (0603);

use lead-free parts only

R8 1

86.6Ω ±1% resistor (0603);

use lead-free parts only

R9, R10, R11,

R41, R42

100Ω ±1% resistors (0603);

use lead-free parts only

R14, R43 2

5.1kΩ ±5% resistors (0603);

use lead-free parts only

R23, R26 2

0.1µF ±10% ceramic capacitors

(0603)

Murata GRM188R71C104K

DESIGNATION QTY DESCRIPTION

R46, R47 2

2.7kΩ ±5% resistors (0603);

use lead-free parts only

REF_INPUT 0

Not installed, SMA edge-mount

connector, round contact

Emerson 142-0701-801

RF_INPUT 1

SMA edge-mount connector,

round contact

Emerson 142-0701-801

U1 1

Maxim DVBS tuner

MAX2112ETI+ (28-pin thin QFN-EP)

U2, U4 0

Not installed, Maxim single-supply

op amps with R2R outputs

Maxim MAX4453ESA

U3 1

74LV07A hex buffer/driver OC

TI SN74LV07ADR

U5 0

Not installed, Maxim open I/O

comparator

MAX985

Y1 1

27MHz crystal

Citizen America 300-8571-1-ND

Digi-Key HCM49-27.000MABJ-UT

—0

Not installed, shunts (JP_VCC,

VCC_BB, VCC_DIG, VCC_LO,

VCC_RF1, VCC_RF2, VCC_SYN,

VCC_VCO)

Shorting jumpers, 2 position

Sullins SSC02SYAN

—1P C B: M AX 2112/20 E V ALU ATION KIT+

Evaluates: MAX2112

MAX2112 Evaluation Kit

_______________________________________________________________________________________ 3

Quick Start

Test Equipment Required

• One dual-output power supply capable of supplying

up to 3.3V at > 160mA for V

and 3V at > 50µA for

gain control voltage

• One RF signal generator capable of delivering at

least 0dBm of output power at frequencies up to

2.175GHz

• One RF spectrum analyzer capable of covering the

operating frequency range of the device

• One PC (486DX33 or better) with Windows

95/98/2000/NT, Windows 4.0/XP

or later operating sys-

tem, 64MB of memory, and an available parallel port

• One 25-pin parallel cable

• One multichannel digital oscilloscope (optional)

• One network analyzer to measure return loss (optional)

• One ammeter to measure supply current (optional)

Procedure

The EV kit is fully assembled and factory tested. Follow

the instructions in the

Connections and Setup

section

for proper device evaluation.

Measurement Considerations

The EV kit includes on-board matching circuitry at the

MAX2112 RF input to convert the 50Ω source to a 75Ω

input. Note that the input power to the device must be

adjusted to account for the -6dB power loss of the

matching resistor network.

Connections and Setup

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

the basic functionality of the EV kit in UHF mode.

Caution: Do not turn on DC power or RF signal gen-

erators until all connections are completed.

1) Verify that all jumpers are in place.

2) With its output disabled, connect the DC power

supply to VGC set to 0.5V (maximum gain).

3) With its output disabled, set the DC power supply

to 3.3V. Connect the power supply to the VCC

(through an ammeter if desired) and GND termi-

nals on the EV kit. If available, set the current limit

to 200mA.

4) With its output disabled, set the RF signal genera-

tor to a 955MHz frequency at -69dBm to account

for the 6dB resistive pad loss. When measuring

noise figure, this 6dB must also be accounted for

by subtracting 6dB from the measured noise

figure, unless the pad has been removed.

5) Connect the output of the RF signal generator to

the SMA connector labeled RF _INPUT on the eval-

uation board.

6) Connect a 25-pin parallel cable between the PC’s

parallel port and the EV kit board.

SUPPLIER PHONE FAX WEBSITE

AMP/Tyco Electronics 800-522-6752 — www.tycoelectronics.com

Amphenol RF 800-627-7100 — www.amphenolrf.com

AVX Corp. 843-448-9411 843-448-7139 www.avxcorp.com

Digi-Key Corp. 800-344-4539 218-681-3380 www.digikey.com

Emerson Network Power 507-833-8822 — www.emersonnetworkpower.com

Keystone Electronics Corp. 209-796-2032 — www.keyelco.com

Maxim Integrated Products, Inc. 888-629-4642 800-992-1884 www.maxim-ic.com

Murata Mfg. Co., Ltd. 770-436-1300 770-436-3030 www.murata.com

Sullins Electronics Corp. 760-744-0125 760-744-6081 www.sullinselectronics.com

Texas instruments 800-336-5236 — www.ti.com

Component Suppliers

Note: Indicate that you are using the MAX2112 when contacting these component suppliers.

Windows and Windows XP are registered trademarks of Microsoft Corp.

P1-P3 P4-P6 P7-P9 P10-P11

MAX2112EVKIT+

Mfr. #:

Buy MAX2112EVKIT+

Manufacturer:

Maxim Integrated

Description:

RF Development Tools MAX2112 Eval Kit

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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MAX2112EVKIT+