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General Description

The MAX5865 evaluation kit (EV kit) is a fully assembled

and tested circuit board that contains all the components

necessary to evaluate the performance of the MAX5865

40Msps analog front end. The MAX5865 integrates a

dual-channel analog-to-digital converter (ADC), a dual-

channel digital-to-analog converter (DAC), and a 1.024V

internal voltage reference. The EV kit board accepts

AC- or DC-coupled, differential or single-ended analog

inputs for the receive ADC and includes circuitry that

converts the transmit DAC differential output signals to

single-ended analog outputs. The EV kit includes cir-

cuitry that generates a clock signal from an AC sine

wave input signal. The EV kit operates from a +3.0V

analog power supply, +3.0V digital power supply, and

±5V bipolar power supply.

The EV kit comes with Windows



98/2000/XP-compatible

software that provides an interface to exercise the fea-

tures of the MAX5865. The program is menu driven and

offers a graphical user interface (GUI) with control but-

tons and status displays. The GUI is used to control the

MAX5865 SPI-compatible serial interface.

The MAX5865 EV kit evaluates the 22Msps MAX5864 or

the 7.5Msps MAX5863 analog front end (IC replace-

ment is required).

Features

♦ Quick Dynamic Performance Evaluation

♦ 50Ω Matched Clock Input and Analog Signal Lines

♦ Single-Ended to Fully Differential Analog Input

Signal Configuration

♦ Differential to Single-Ended Output Signal-

Conversion Circuitry

♦ AC- or DC-Coupled Input Signals Configuration

♦ SMA Coaxial Connectors for Clock Input, Analog

Inputs, and Analog Output

♦ On-Board Clock-Shaping Circuit

♦ High-Speed PC Board Design

♦ Fully Assembled and Tested

♦ Windows-Compatible Software

Evaluates: MAX5863/MAX5864/MAX5865

MAX5865 Evaluation Kit

________________________________________________________________ Maxim Integrated Products 1

19-3000; Rev 1; 2/04

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.

Ordering Information

PART TEMP RANGE IC PACKAGE

MAX5865EVKIT 0°C to +70°C

48 Thin QFN-EP*

*EP = Exposed pad.

Windows is a registered trademark of Microsoft Corp.

Component Suppliers

SUPPLIER PHONE FAX WEBSITE

AVX 843-946-0238 843-626-3123 www.avxcorp.com

Kemet 864-963-6300 864-963-6322 www.kemet.com

Murata 770-436-1300 770-436-3030 www.murata.com

Pericom 800-435-2336 408-435-1100 www.pericom.com

Taiyo Yuden 800-348-2496 847-925-0899 www.t-yuden.com

TDK 847-803-6100 847-390-4405 www.component.tdk.com

Texas Instruments 972-644-5580 214-480-7800 www.ti.com

Note: Please indicate that you are using the MAX5865 when contacting these component suppliers.

Part Selection Table

PART

MAXIMUM SAMPLING SPEED (Msps)

MAX5863ETM 7.5

MAX5864ETM 22

MAX5865ETM 40

MAX5865 EV Kit Software Files

PROGRAM DESCRIPTION

INSTALL.EXE Installs the EV kit software

MAX5865.EXE Application program

HELPFILE.HTM MAX5865 EV kit Help file

PORT95NT.EXE

SST's freeware DLPortIO driver

IMAGE 1.GIF Interface figure

UNINST.INI Uninstalls the EV kit software

Summary of content (18 pages)

PAGE 1
9-3000; Rev 1; 2/04 MAX5865 Evaluation Kit The MAX5865 evaluation kit (EV kit) is a fully assembled and tested circuit board that contains all the components necessary to evaluate the performance of the MAX5865 40Msps analog front end. The MAX5865 integrates a dual-channel analog-to-digital converter (ADC), a dualchannel digital-to-analog converter (DAC), and a 1.024V internal voltage reference.
PAGE 2
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit Component List DESIGNATION C1–C8 C9–C15, C27, C68–C71 C16–C19 C20, C21, C22, C26 QTY 8 12 DESCRIPTION 0.1µF ±10%, 10V X5R ceramic capacitors (0402) Taiyo Yuden LMK105BJ104KV or TDK C1005X5R1A104K 2.
PAGE 3
MAX5865 Evaluation Kit Recommended Equipment • • • • • • • • • • • • • • Two +3.0VDC power supplies Two +2.0VDC power supplies One ±5.0V bipolar DC power supply One function generator with low phase noise and low jitter for clock input (e.g., HP 8662A) Two function generators for single-ended analog inputs (e.g., HP 8662A) One 10-bit digital pattern generator for data inputs (e.g., Tektronix DG2020A) Two spectrum analyzers (e.g., HP 8560E) One logic analyzer or data-acquisition system (e.g.
PAGE 4
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit 20) Connect the -5.0V terminal of the bipolar power supply to the VEE pad. 21) Turn on the five power supplies. 22) Probe resistor pad R28 with an oscilloscope and adjust potentiometer R13 to set the clock duty cycle to 50%. 23) Start the MAX5865 program by opening its icon in the Start menu. 24) Click on the Xcvr control command to set the MAX5865 in receive/transmit (transceiver) operational mode.
PAGE 5
MAX5865 Evaluation Kit MODE EV KIT FUNCTION COMMAND BYTE SENT TO MAX5865 Shutdown Device shutdown. REF is off, ADCs are off, the ADC bus is tri-stated, and DACs are off. The DAC input bus must be set to zero or OVDD to achieve the lowest shutdown-mode power consumption. xxxx x000 Idle REF is on, ADCs are off, the ADC bus is tri-stated, and DACs are off. The DAC input bus must be set to zero or OVDD to achieve the lowest Idle Mode™ power consumption.
PAGE 6
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit Clock Signal Transmit Dual DAC Outputs An on-board clock-shaping circuit generates a clock signal from an AC sine wave signal applied to the CLOCK SMA connector. The input clock signal should not exceed a magnitude of 2.6VP-P. The frequency of the signal determines the sampling frequency (fCLK) of the MAX5865 EV kit circuit and should not exceed 40MHz.
PAGE 7
MAX5865 Evaluation Kit Receive Dual 8-Bit ADC Output The 8-bit digital output data for the IA and QA channels are multiplexed at output data bus DA0–DA7. The IA channel data is available on the falling edge of the clock. The QA channel data is available on the rising edge of the clock. The MAX5865 EV kit provides a 0.1in 2 x 10 header (J1) to interface with a logic-analyzer or dataacquisition system. The header data pins are labeled on the board with the appropriate data bit designations.
PAGE 8
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit Table 4. Single-Ended/Differential/AC-Coupled/DC-Coupled Jumper Configuration (continued) 8 JUMPER SHUNT POSITION JU1 2 and 3 JU2 Not installed JU9 Not installed JU3 2 and 3 JU4 2 and 3 JU10 Installed JU3 2 and 3 JU4 2 and 3 JU10 Not installed JU3 1 and 2 JU4 1 and 2 JU3 2 and 3 JU4 Not installed JU10 Not installed PIN CONNECTION EV KIT OPERATION IA+ pin DC-coupled to SMA connector IAP through R1 and R26.
PAGE 9
MAX5865 Evaluation Kit REFIN VOLTAGE REFERENCE MODE VDD (shunt across jumper JU11) Internal reference mode. Internal reference voltage equal to 0.512V. Sets the full-scale ADC input to 1.024VP-P and DAC output voltage to 400mVP-P. External 1.024V (remove shunt from jumper JU11) Buffered external reference mode. ADC full-scale input voltage set to REFIN. DAC full-scale output voltage proportional to REFIN.
PAGE 10
QAP QA IA R31 49.9Ω 1% R32 49.9Ω 1% R30 49.9Ω 1% R29 49.9Ω 1% C30 0.1µF R27 OPEN C67 5 0.1µF 6 3 2 1 1 2 4 5 4 T2 3 C66 2 0.1µF 3 1 1 T1 6 2 3 JU3 JU1 REFN R6 2kΩ 1% V1 3 2 1 1 2 3 JU10 C16 22pF QAN V1 R2 24.9Ω 1% REFN C9 2.2µF C10 2.2µF R3 24.9Ω 1% VDD VDD VDD REFP C11 2.2µF R1 24.9Ω 1% CLK IAN C20 1000pF R4 24.9Ω 1% COM C29 0.1µF C31 0.1µF JU4 JU2 COM C23 0.33µF R8 R7 2kΩ 2kΩ 1% 1% C24 0.33µF REFN C1 0.1µF C17 22pF C2 0.
PAGE 11
MAX5865 Evaluation Kit Evaluates: MAX5863/MAX5864/MAX5865 VCLK C27 2.2µF R10 4.02kΩ 1% C26 1000pF C32 0.1µF TPI 1 R13 5kΩ 4 C33 VCLK 0.1µF R9 2kΩ 1% C34 0.1µF IN2OUT1 R12 6.04kΩ 1% 8 7 U2 2 3 CLOCK R33 49.9Ω 1% VCC IN1- IN1+ OUT2 IN2+ GND 6 VDDRV R28 SHORT (PC TRACE) L1 CS CLK R67 10kΩ R36 SHORT (PC TRACE) R69 10kΩ R68 10kΩ SCLK DIN CLK2 5 R64 51Ω DIN R11 4.02kΩ 1% SCLK R66 51Ω CS R65 51Ω 2 4 VCC ID 8 R15 10kΩ 1% 3 U3 C69 2.2µF VEE C53 0.
PAGE 12
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit J1 J1-1 2 J1-2 R52 51Ω J1-3 5 J1-4 R51 51Ω J1-5 J1-9 J1-10 R48 51Ω J1-11 J1-12 R47 51Ω J1-13 J1-14 R46 51Ω J1-15 J1-16 R45 51Ω J1-17 J1-18 1Y4 2Y1 11 2Y3 14 17 3Y2 3Y4 C48 0.
PAGE 13
MAX5865 Evaluation Kit Evaluates: MAX5863/MAX5864/MAX5865 Figure 5.
PAGE 14
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit Figure 6.
PAGE 15
MAX5865 Evaluation Kit Evaluates: MAX5863/MAX5864/MAX5865 Figure 7.
PAGE 16
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit Figure 8.
PAGE 17
MAX5865 Evaluation Kit Evaluates: MAX5863/MAX5864/MAX5865 Figure 9.
PAGE 18
Evaluates: MAX5863/MAX5864/MAX5865 MAX5865 Evaluation Kit Figure 10. MAX5865 EV Kit 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.