Maxim Integrated MAX2830 User Manual

MAX2830 Evaluation Kit

Evaluates: MAX2830

General Description

The MAX2830 evaluation kit (EV kit) simplies testing

of the MAX2830 receive and transmit performance in

802.11g/b applications operating in the 2.4GHz to 2.5GHz
ISM band. The EV kit provides 50Ω SMA connectors for
all RF and baseband inputs and outputs. Differential-to­single-ended and single-ended-to-differential line drivers
are provided to convert the differential I/Q baseband
inputs and outputs to single ended.

Features

● On-Board Line Driver and Voltage Reference

● 50Ω SMA Connectors on All RF and Baseband Ports

● PC Control Software Available at

www.maximintegrated.com

Quick Start

Test Equipment Required

This section lists the recommended test equipment to
verify the operation of the MAX2830. It is intended as a

guide only and substitutions may be possible:

● MAX2830 EV kit

● INTF3000+ interface board

● DC supply capable of delivering +5V and 200mA of

continuous current

● DC supply capable of delivering -5V and 200mA of

continuous current

● DC supply capable of delivering +3.3V and 300mA of

continuous current

● DC supply capable of delivering +2.85V and 200mA

of continuous current

● One HP8648s or equivalent signal sources capable

of generating 0dBm up to 3GHz

● 802.11b/g CW I/Q waveform generator

● HP8561E or equivalent RF spectrum analyzer with a

minimum 100kHz to 3GHz frequency range

● TDS3012 or equivalent oscilloscope with 200MHz
bandwidth

● PC laptop or tablet with Microsoft Windows XP®,
Windows® 7, 8 OS and a USB port

● USB-A male to USB-B male cable

Connections and Setup

This section provides step-by-step instructions for getting
the EV kit up and running in all modes (see Figure 1 for
EV kit connections):

1) Connect the PC to the INTF3000 interface board using
the USB-A male to USB-B male cable. On INTF3000,
remove jumper JU1 and connect a DC supply set to 3.3V

to the V

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

EV kit (J18).

2) With the power supply turned off, connect a +2.85V
power supply to V
+3.3V power supply to V
supply ground to the header labeled GND1 or GND2.

3) With the power supply turned off, connect a +5V power
supply to the +5V test point and a -5V power supply to
the -5V test point. Connect the power-supply ground
to the header labeled GND1 or GND2. Connect all the
power-supply grounds together.

4) Make sure the jumpers are installed in their defualt
positions as shown in Figure 1.

5) Turn on the +3.3V power supply, followed by the
+2.85V power supply, +5V power supply, and -5V
power supply.

6) Install and run the MAX2830 control software,
available for download HERE.

connector. Connect the 25-pin connector of

PULL

(pin 1) and V

REG

. Connect the power-

BAT

CCAUX

, and a

Receive Mode

1) Set the RXTX jumper across pins 2-3 (RX) to enable

the receiver and disable the transmitter. Set the
ANTSEL jumper across pins 2-3 (ANT1) to connect
the receiver to the ANT1 port, or pins 1-2 (ANT2) to

connect the receiver to the ANT2 port.

2) Set the signal generator to accurately deliver

-100dBm at 2438MHz, at the SMA port (ANT1 or
ANT2) of MAX2830. Connect the output of signal
generator to ANT1 or ANT2 port of MAX2830.

3) On the Registers page of the EV kit software, set

the registers to the recommended settings in the
MAX2830 data sheet by clicking the “Defaults” and
“Send All” buttons.

Windows and Windows XP are registered trademarks and
registered service marks of Microsoft Corporation.

19-0926; Rev 3; 1/16

MAX2830 Evaluation Kit

Evaluates: MAX2830

4) On the entry page, conrm that the ‘Receive Mode’ is
set to “normal,” ‘Baseband Filter Mode Control’ is set
to “RX”, and the ‘RF Frequency’ is tuned to 2437MHz.
Maximize the RX LNA gain and RX VGA gain.

5) Connect the spectrum analyzer to either RXBBI or
RXBBQ. Set the center frequency to 1MHz with a span
of 500kHz. Other recommended spectrum analyzer
settings are: Res BW of 1kHz and Ref Level of 10dB.

6) Turn on the RF signal source. The supply current
draw should be approximately 74mA.

7) If the RF input is connected to ANT1, the output CW
tone at 1MHz should be approximately -2.5dBm. If
the RF input is connected to ANT2, the output CW
tone at 1MHz should be approximately -4dBm.

Transmit Mode

1) Set the RXTX jumper across pins 1-2 (TX) to enable

the transmitter and disable the receiver. The transmitter
will automatically be connected to ANT2, irrespective of
ANTSEL jumper setting.

2) Connect ANT2 port to the spectrum analyzer. Set the

center frequency of spectrum analyzer to 2437MHz
and span to 10MHz. Other recommended spectrum
analyzer settings are: Res BW of 3kHz, Attenuation of
30dB and Ref Level of 22dB.

3) Connect a 1MHz sinusoid to TXBBI and a 1MHz sinusoid

with a 90° phase shift (or a cosine) to TXBBQ. Set the

input amplitude of each channel to 100mV

4) On the Registers page of the EV kit software, set the

registers to the recommended settings listed in the IC
data sheet by clicking the “Defaults” and “Send All”
buttons.

RMS

.

5 On the Entry page, make sure ‘Transmitter Mode’ is

set to “normal”, ‘Baseband Filter Mode Control’ is set
to “TX,” and the ‘RF Frequency’ is tuned to 2437MHz.
Set the TX gain to maximum using the ‘TX VGA Gain’
sliding bar.

6) Enable the output of the baseband signal sources. The
supply current draw should be approximately 87mA.

7) The TX output power at 2436MHz should be
approximately 19dBm. The LO leakage at 2437MHz
should be 0dBm and unwanted sideband at 2438MHz
should be -6dBm.

Note: CW signals can be replaced by modulated

802.11g/b signals.

Layout Considerations

The EV kit can serve as a guide for board layout. Keep
PCB trace lengths as short as possible to minimize
parasitic inductance. Also, keep decoupling capacitors as
close to the IC as possible with a direct connection to the
ground plane.

Power-Supply Layout

To minimize coupling between different sections of the
IC, use a star power-supply routing configuration with a
large decoupling capacitor at a central VCC node. The

V

traces branch out from this node, each going to a

CC

separate VCC node in the circuit. Place a bypass

capacitor as close as possible to each supply pin. This
arrangement provides local decoupling at each VCC
pin. Use at least one via per bypass capacitor for a low­inductance ground connection. Do not share the capacitor
ground vias with any other branch.

Table 1. Jumper Functions

JUMPER SETTING FUNCTION

RXTX

ANTSEL

TXBBBUF/RXBBBUF

V

REG

V

CCVCO

www.maximintegrated.com

Pins 2-3 Enable receive mode
Pins 1-2 Enable transmit mode

Pins 1-2 Connect the Rx input to ANT2
Pins 2-3 Connect the Rx input to ANT1
Pins 1-2 Enables the buffers

Pins 2-3 Disables the buffers
Pins 1-2 Short the jumper to provide voltage to the MAX2830 from the linear regulator (U10)
Pins 2-3 Supply the V
Pins 1-2 Supply the V

from V

CCVCO
CCVCO

REG

from the linear regulator (U10)

Maxim Integrated

│

2

MAX2830 Evaluation Kit

Evaluates: MAX2830

Figure 1. MAX2830 EV Kit Connections

www.maximintegrated.com

Maxim Integrated

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MAX2830 Evaluation Kit

Component Suppliers

SUPPLIER WEBSITE

AVX Corp. www.avx.com
Digi-Key Corp. www.digikey.com
Johnson Components www.johnsoncomponents.com

Murata Americas www.murata.com
Texas Instruments Inc. www.ti.com

Note: Indicate that you are using the MAX2830 when contacting these component suppliers.

Evaluates: MAX2830

Component List, PCB Layout, and
Schematic

See the following links for component information, PCB
layout diagrams, and schematic.

● MAX2830 EV BOM

● MAX2830 EV PCB Layout

● MAX2830 EV Schematic

Ordering Information

PART TYPE

MAX2830EVKIT+ EV Kit

+Denotes a lead(Pb)-free and RoHS-compliant EV kit.

www.maximintegrated.com

Maxim Integrated

│

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MAX2830 Evaluation Kit

Revision History

Evaluates: MAX2830

REVISION

NUMBER

0 8/07 Initial release —
1 11/14 Updated Quick Start section 3

2 11/15

3 1/16 Updated connection information for the INTF3000 interface board 1-3

REVISION

DATE

DESCRIPTION

EV kit updated to reect conversion to INTF3000 interface board/USB cable
from parallel cable

PAGES

CHANGED

1–5

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses

are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.

©

2016 Maxim Integrated Products, Inc.

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5

DESIGNATION

QTY

DESCRIPTION

+5V, -5V, B1–B7, CSB, DIN, GND1, GND2, LD,

C61

1

10µF ±10% capacitor (1206) Murata GRM31CR60J106K

C68, C69

2

0Ω ±5% resistors (0402)

C78

1

2200pF ±10% capaci tor (0402) Murata GRM15 5R 71H222K

C80

1

68pF ±5% capacitor (0402) Murata GRM1555C1H680J

J17

0

Not installed

L1, L2, L7

0

Not installed

R11, R30, R38, R46, R50

0

Not installed, resistors

R14

1

270Ω ±5% resistor (0402)

R39, R45

2

100Ω ±1% resistors (0402)

R43

1

1kΩ ±1% resistor (0402)

R51

1

1.2kΩ ±5% resistor (0402)

R52

1

750Ω ±5% resistor (0402)

R53

1

10kΩ ±5% resistor (0402)

T1

0

Not installed, balun

RSSI, RXBBI+, RXBBI-, RXBBQ+, RXBBQ-,

RXHP,SCLK, SHDNB, TPANTSEL, TPCLKOUT,

TPRXTX, TPTUNE, TPTXCMIN, TXBBI+ TXBBI-,

33

Test points
Keystone 5000

TXBBQ+, TXBBQ-, VBAT, VCCAUX

ANTSEL, RXBBB UF, RXTX , TXBB BUF, VCCVC O 5 1 x 3 headers Sullins PEC36SAAN

CLKOUT, FREF, RXBBI, RXBBQ, RXRF/ANT1,

TXBBI, TXBBQ, TXRF/ANT2

C1 1

C3, C16, C70, C79, C81, C89 6

C4 1

C5, C7, C10, C11, C13, C17, C18, C21, C22, C29,

C40, C42, C43, C45, C46, C50, C52, C54, C59,

C60, C64, C67, C83, C86

SMA edge-mount connectors, round

8

Johnson 142-0701-801
33pF ±5% capacitor (0402)

Murata GRM1555C1H330J
100pF ±5% capacitors (0402)

Murata GRM1555C1H101J
18pF ±5% capacitor (0402)

Murata GRM1555C1H180J

100nF ±10% capacit ors (0402)

24

Murata GRM155R61A104K

C6, C9, C30, C41, C62, C73, C74, C75, C87, C88 10 0.01µF ±10% capacitors (0402) Murata GRM155R71C103K

C8, C44, C48, C49, C71, C72, C77 0 Not installed, capacitors

C12, C51, C53, C55, C63, C65, C66 7 10µF ±20% tantalum capacitors (R-case) AVX TAJR106M006

C76 1 1000pF ±10% capaci tor (0402) Murata GRM15 5R 71H102K

C82 1 10µF ±10% capacitor (0805) Murata GRM21BR60J106K

J18 1 DB25 right-angle male connector AMP 5747238-4

JPB1–JPB7, JPCSB, JPDIN, JPLD, JPRXHP,

JPSCLK, JPSHDNB

0 Not installed

LDO_IN, VREG 2 1 x 2 headers Sullins PEC36SAAN

R1, R2, R6, R10, R16, R17, R22, R27 8 75Ω ±1% resistors (0402)

R3, R7, R18, R23 4 3.3kΩ ±5% resistors (0402)
R4, R5, R21, R26 4 49.9Ω ±1% resistors (0402)

R8, R9, R12, R13, R28, R29, R31, R32 8 0Ω Ω5% resistors (0402)

T2, T3 2

U1, U5 2

U2, U6 2

2.4GHz RF baluns
Murata LDB212G401 0C -001

Line drivers (16 SO)
Maxim MAX4447ESE+

Line receivers (16 SO)
Maxim MAX4444ESE+

DESIGNATION

QTY

DESCRIPTION

U3 1

U4 1

U8, U9 2

U10 0

VCCLNA, VCCPA1, VCCPA2, VCCPLL,

VCCRXBB1, VCCRXBB2, VCCRXMX, VCCTXMX,

VCCXTAL, VCC_DB, VCC_REF, VREG

Y1 1 40MHz crystal Kyocera CX3225SB40000H0WZK21

Low-dropout refer ence (3 SOT)
Maxim MAX6061BEUR+

Transceiver (48 TQ F N )
Maxim MAX2830ETM+

SN74LVTH244ADB
TI SN74LVTH244ADBR

Not installed, (optional)
Maxim MAX8882EUTJJ+

0 Not installed

— 6

Shunts (ANTSEL, LDO_IN, RXBBBUF, RXTX, TXBBBUF,
VCCVCO) Sullins SSC02SYAN

— 1 PCB: MAX2830/1/2 EVALUATION KI T

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Maxim Integrated:
MAX2830EVKIT+