MAX2117 Evaluation Kit
Evaluates: MAX2117
General Description
The MAX2117 evaluation kit (EV kit) simplifies the testing
and evaluation of the device 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 artwork
for each layer of the printed-circuit board (PCB).
Features
●
Easy Evaluation of the MAX2117
● 50Ω RF Input SMA Connector
● 50Ω Baseband Output BNC Connector
●
Single 3.3V ±5% Supply
● I
2
C 2-Wire Serial Interface
● All Critical Peripheral Components Included
● Fully Assembled and Tested
● PC Control Software (Available at
www.maximintegrated.com/evkitsoftware)
Ordering Information
PART
MAX2117EVKIT+
TYPE
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION
ADDR
BB_I_O/P,
BB_Q_O/P
BB_IN, BB_IP,
BB_QN, BB_
QP, CP_OUT,
J12, J13, J17,
REF_O/P, VGC
C1–C6,
C9, C14
C7, C13, C19,
C20, C75
C8, C12,
C25–C29
C10, C11, C16
QTY
0
2
DESCRIPTION
Not installed, 3-pin (1 x 3) inline
header, 0.01in centers
Sullins PEC36SAAN
50Ω BNC PC mounts
Amphenol 31-5329-52RFX
DESIGNATION
C15
QTY
1
DESCRIPTION
0.68µF ±10% ceramic capacitor
(0603)
Murata GRM188R61A684K
10µF ±10% tantalum capacitors
(C Case)
AVX TAJC016K016
43.2Ω ±1% resistor (0603)*
330pF ±5% ceramic capacitors
(0603)
Murata GRM1885C1H331J
DB25 right-angle male connector
AMP 5747238-4
C17, C18
C22
C23, C24,
C71–C73
J6
JP_VCC, VCC_
BB, VCC_DIG,
VCC_LO,
VCC_RF1,
VCC_RF2,
VCC_SYN,
VCC_VCO
2
1
5
1
10
PC mini red test points
Keystone 5000
8
1000pF ±10% ceramic capacitors
(0603)
Murata GRM188R71H102K
0.1µF ±10% ceramic capacitors
(0603)
Murata GRM188R71C104K
Not installed, capacitors
0.047µF ±10% ceramic capacitors
(0603)
Murata GRM188R71C473K
5
0
3
0
Not installed, 2-pin (1 x 2) inline
headers, 0.01in centers
Sullins PEC36SAAN
19-2172; Rev 2; 11/14
MAX2117 Evaluation Kit
Evaluates: MAX2117
Component List (continued)
DESIGNATION
L1
R2, R12,
R18–R20, R22,
R25, R27–R33
R3, R7,
R15–R17, R21
R4, R5, R13,
R24
R6
R8
R9–R11, R41,
R42
R14, R43
R23, R26
R46, R47
REF_INPUT
QTY
1
0
6
4
1
1
5
2
2
2
0
DESCRIPTION
68pF ±5% capacitor (0603)
Murata GRM1885C1H680J
Not installed, resistors
0Ω ±5% resistors (0603)*
1kΩ ±5% resistors (0603)*
430Ω ±5% resistor (0603)*
86.6Ω ±1% resistor (0603)*
100Ω ±1% resistors (0603)*
5.1kΩ ±5% resistors (0603)*
0.1µF ±10% ceramic capacitors
(0603)
Murata GRM188R71C104K
2.7kΩ ±5% resistors (0603);
use lead-free parts only
Not installed, SMA edge-mount
connector, round contact
Emerson 142-0701-801
—
0
Y1
1
U3
U5
1
0
DESIGNATION
RF_INPUT
U1
U2, U4
QTY
1
1
0
DESCRIPTION
SMA edge-mount connector,
round contact
Emerson 142-0701-801
DVBS tuner (28 TQFN-EP**)
Maxim MAX2117CTI+
Not installed, single-supply op amps
with R2R outputs
Maxim MAX4453ESA
74LV07A hex buffer/driver OC
TI SN74LV07ADR
Not installed, I/O comparator
MAX985
4MHz crystal
Citizen America 300-8526-1-ND
Digi-Key HCM49-4.000MABJ-UT
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
PCB: MAX2112/20
EVALUATION KIT
—
1
*Use lead-free parts only.
**EP = Esposed pad.
Component Suppliers
SUPPLIER
AMP/Tyco Electronics
Amphenol RF
AVX Corp.
Digi-Key Corp.
Emerson Network Power
Keystone Electronics Corp.
Murata Americas
Sullins Electronics Corp.
Texas instruments
www.tycoelectronics.com
www.amphenolrf.com
www.avxcorp.com
www.digikey.com
www.emersonnetworkpower.com
www.keyelco.com
www.murataamericas.com
www.sullinselectronics.com
www.ti.com
WEBSITE
Note:
Indicate that you are using the MAX2117 when contacting these component suppliers.
www.maximintegrated.com
Maxim Integrated │
2
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.
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.
Connect the output of the RF signal generator to the
SMA connector labeled RF _INPUT on the evaluation
board.
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).
Turn on the 3.3V V
CC
power supply, followed by the
3V gain-control power supply. The supply current
from the 3.3V V
CC
supply should read approximately
100mA, and the supply current from the 3V V
GC
should read approximately 50μA. Be sure to adjust
the power supply to account for any voltage drop
across the ammeter.
Install and run the IC’s control software. Software
is available for download on the Maxim website at
www.maximintegrated.com/evkitsoftware.
Load the default register settings from the control
software by clicking
Edit: Load Defaults.
Set ICP = 1
and BBG[3:0] = 1011.
Test Equipment Required
●
MAX2117 EV kit
●
Dual-output power supply capable of supplying up to
3.3V at > 160mA for V
CC
and 3V at > 50μA for V
GC
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)
7)
5)
6)
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.
8)
9)
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)
2)
3)
Verify that all jumpers are in place.
With its output disabled, connect the DC power
supply to VGC set to 0.5V (maximum gain).
With its output disabled, set the DC power supply to
3.3V. Connect the power supply to the VCC (through
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 1V
P-P
at the baseband BNC connector
outputs.
13) Check the I/Q outputs.
14) Observe the baseband output at 5MHz with 1V
P-P
.
Windows and Windows XP are registered trademarks and
registered service marks of Microsoft Corporation.
www.maximintegrated.com
Maxim Integrated │
3
MAX2117 Evaluation Kit
Evaluates: MAX2117
Layout Considerations
The EV kit can serve as a guide for PCB layout. Keep RF
signal lines as short as possible to minimize losses and
radiation. Use controlled impedance on all high-frequency
traces. The exposed paddle must be soldered evenly to
the board’s ground plane for proper operation. Use abun-
dant vias beneath the exposed paddle for maximum heat
dissipation. Use abundant ground vias between RF traces
to minimize undesired coupling.
To minimize coupling between different sections of the
IC, the ideal power-supply layout is a star configuration,
which has a large decoupling capacitor at the central
V
CC
node. The V
CC
traces branch out from this node,
with each trace going to separate V
CC
pins of the IC.
Each V
CC
pin must have a bypass capacitor with a low
impedance to ground at the frequency of interest. Do not
share ground vias among multiple connections to the
PCB ground plane.
www.maximintegrated.com
Maxim Integrated │ 4
MAX2117 Evaluation Kit
Evaluates: MAX2117
Figure 1. MAX2117 EV Kit Schematic
www.maximintegrated.com
Maxim Integrated │
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
