MAX2117EVKIT Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX2117EVKIT

MAX2117 Evaluation Kit

Maxim Integrated 

MAX2117 Evaluation Kit

Evaluates: MAX2117

Quick Start

The EV kit is fully assembled and factory tested. Follow

the instructions in the Connections and Setup section for

proper device evaluation.

Test Equipment Required

●● MAX2117 EV kit

●● Dual-output power supply capable of supplying up to

3.3V at > 160mA for VCC and 3V at > 50μA for VGC

gain control voltage

●● RF signal generator capable of delivering at least

0dBm of output power at frequencies up to 1GHz

●● RF spectrum analyzer capable of covering the

operating frequency range of the device

●● PC laptop or tablet with Microsoft Windows XP®,

Windows® 7, 8 OS and a spare USB port

●● USB-A male to USB-B male cable

●● US keyboard

●● Multichannel digital oscilloscope (optional)

●● Network analyzer to measure return loss (optional)

●● Ammeter to measure supply current (optional)

Procedure

Measurement Considerations

The EV kit includes on-board matching circuitry at the

MAX2117 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 generators 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 terminals on the EV

kit. If available, set the current limit to 200mA.

4) With its output disabled, set the RF signal generator

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 evaluation

board.

6) Connect the PC to the INTF3000 interface board

using the USB-A male to USB-B male cable. On

INTF3000, place a jumper between pins 1-2 on JU1

(VBUS Pos). Connect the 25-pin connector of the

INTF3000 (J4) directly to the 25-pin connector on the

EV kit (J6).

7) Turn on the 3.3V VCC power supply, followed by the

3V gain-control power supply. The supply current

from the 3.3V VCC supply should read approximately

100mA, and the supply current from the 3V VGC

should read approximately 50μA. Be sure to adjust

the power supply to account for any voltage drop

across the ammeter.

8) Install and run the IC’s control software. Software

is available for download on the Maxim website at

www.maximintegrated.com/evkitsoftware.

9) Load the default register settings from the control

software by clicking Edit: Load Defaults. Set ICP = 1

and BBG[3:0] = 1011.

10) Connect the output to a spectrum analyzer or an

oscilloscope.

11) Enable the RF signal generator’s output.

12) Activate and set the power level of the RF generator

to achieve 1VP-P at the baseband BNC connector

outputs.

13) Check the I/Q outputs.

14) Observe the baseband output at 5MHz with 1VP-P.

Windows and Windows XP are registered trademarks and

registered service marks of Microsoft Corporation.

www.maximintegrated.com

Maxim Integrated │  3

Share Link: