MAX2120EVKIT+ [MAXIM]
All Critical Peripheral Components Included;
| 型号： | MAX2120EVKIT+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | All Critical Peripheral Components Included |
| 文件： | 总11页 (文件大小：650K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Evaluates: MAX2120
MAX2120 Evaluation Kit
General Description
Features
The MAX2120 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.
● Easy Evaluation of the MAX2120
● 50Ω RF Input SMA Connector
● 50Ω Baseband Output BNC Connector
● Single 3.3V ±5% Supply
2
● I C 2-Wire Serial Interface
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 PCB.
● All Critical Peripheral Components Included
● Fully Assembled and Tested
● PC Control Software (available at
www.maximintegrated.com/evkitsoftware)
Ordering Information
PART
TYPE
MAX2120EVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
Not installed, 3-pin (1 x 3) inline
header, 0.01in centers
Sullins PEC36SAAN
0.047μF ±10% ceramic capacitors
(0603)
Murata GRM188R71C473K
ADDR
0
2
C10, C11
C15
2
1
1
BB_I_O/P,
BB_Q_O/P
50Ω BNC PC mounts
Amphenol 31-5329-52RFX
0.033μF ±10% ceramic capacitor
(0603)
Murata GRM188R61A334K
BB_IN, BB_IP,
BB_QN, BB_QP,
CP_OUT,
J12, J13, J17,
REF_O/P, VGC
0.022μF ±10% ceramic capacitor
(0603)
Murata GRM188R71H223K
PC mini red test points
Keystone 5000
C16
10
10μF ±10% tantalum capacitors
(C Case)
AVX TAJC016K016
C17, C18
2
1
5
1000pF ±10% ceramic capacitors
(0603)
Murata GRM188R71H102K
C1–C6, C9, C14
8
C22
43.2Ω ±1% resistor (0603)*
330pF ±5% ceramic capacitors
(0603)
Murata GRM1885C1H331J
0.1µF ±10% ceramic capacitors
(0603)
Murata GRM188R71C104K
C23, C24,
C71–C73
C7, C13, C19,
C20, C75
5
0
DB25 right-angle male connector
AMP 5747238-4
C8, C12,
C25–C29
J6
1
Not installed, capacitors
19-2071; Rev 2; 11/14
Evaluates: MAX2120
MAX2120 Evaluation Kit
Component List (continued)
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
JP_VCC,
VCC_BB,
VCC_DIG,
VCC_LO,
VCC_RF1,
VCC_RF2,
VCC_SYN,
VCC_VCO
Not installed, SMA edge-mount
connector, round contact
Emerson 142-0701-801
REF_INPUT
0
Not installed, 2-pin (1 x 2) inline
headers, 0.01in centers
Sullins PEC36SAAN
0
SMA edge-mount connector,
round contact
Emerson 142-0701-801
RF_INPUT
U1
1
1
0
DVBS tuner (28 TQFN-EP**)
Maxim MAX2120CTI+
33pF ±5% capacitor (0603)
Murata GRM1885C1H330J
L1
1
0
Not installed, single-supply op amps
with R2R outputs
Maxim MAX4453ESA
U2, U4
R2, R12,
R18–R20, R22,
R25, R27–R33
Not installed, resistors
74LV07A hex buffer/driver OC
TI SN74LV07ADR
U3
U5
1
0
R3, R7,
R15–R17, R21
6
4
0Ω ±5% resistors (0603)*
1kΩ ±5% resistors (0603)*
Not installed, open I/O comparator
Maxim MAX985
R4, R5, R13,
R24
4MHz crystal
Y1
1
Citizen America 300-8526-1-ND
Digi-Key HCM49-4.000MABJ-UT
R6
R8
1
1
820Ω ±5% resistor (0603)*
86.6Ω ±1% resistor (0603)*
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
R9–R11, R41,
R42
5
2
100Ω ±1% resistors (0603)*
5.1kΩ ±5% resistors (0603)*
R14, R43
R23, R26
R46, R47
—
—
0
1
0.1µF ±10% ceramic capacitors
(0603)
Murata GRM188R71C104K
2
2
PCB: MAX2112/20 EVALUATION KIT
2.7kΩ ±5% resistors (0603)*
*Use lead-free parts only.
**EP = Exposed pad.
Component Suppliers
SUPPLIER
AMP/Tyco Electronics
Amphenol RF
WEBSITE
www.tycoelectronics.com
www.amphenolrf.com
www.avxcorp.com
AVX Corp.
Digi-Key Corp.
www.digikey.com
Emerson Network Power
Keystone Electronics Corp.
Murata Americas
www.emersonnetworkpower.com
www.keyelco.com
www.murataamericas.com
www.sullinselectronics.com
www.ti.com
Sullins Electronics Corp.
Texas instruments
Note: Indicate that you are using the MAX2120 when contacting these component suppliers.
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Evaluates: MAX2120
MAX2120 Evaluation Kit
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.
Quick Start
Test Equipment Required
● MAX2120 EV kit
● Dual-output power supply capable of supplying up to
3.3V at > 160mA for V
gain control voltage
and 3V at > 50μA for V
CC
GC
5) Connect the output of the RF signal generator to the
SMA connector labeled RF _INPUT on the evalua-
tion board.
● RF signal generator capable of delivering at least
0dBm of output power at frequencies up to 2.175GHz
6) Connect the PC to the INTF3000 interface board
using the USB-A male to USB-B male cable. On the
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).
● RF spectrum analyzer capable of covering the
operating frequency range of the device
®
● PC laptop or tablet with Microsoft Windows XP ,
®
Windows 7, 8 operating system and a spare USB port
● USB-A male to USB-B male cable
● US keyboard
7) Turn on the 3.3V V
power supply, followed by the
CC
3V gain-control power supply. The supply current
from the 3.3V V supply should read approximately
● Multichannel digital oscilloscope (optional)
● Network analyzer to measure return loss (optional)
● Ammeter to measure supply current (optional)
CC
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.
Procedure
The EV kit is fully assembled and factory tested. Follow
the instructions in the Connections and Setup section for
proper device evaluation.
8) Install and run the IC control software. Software
is available for download on the Maxim website at
www.maximintegrated.com/evkitsoftware.
Measurement Considerations
9) Load the default register settings from the control
software by clicking Edit: Load Defaults. Set ICP =
1 and BBG[3:0] = 1011.
The EV kit includes on-board matching circuitry at the
MAX2120 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.
10) Connect the output to a spectrum analyzer or an
oscilloscope.
11) Enable the RF signal generator’s output.
Connections and Setup
12) Activate and set the power level of the RF generator
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.
to achieve 1V
outputs.
at the baseband BNC connector
P-P
13) Check the I/Q outputs.
14) Observe the baseband output at 5MHz with 1V
.
P-P
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.
Windows and Windows XP are registered trademarks and
registered service marks of Microsoft Corporation.
Maxim Integrated
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Evaluates: MAX2120
MAX2120 Evaluation Kit
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
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.
V
node. The V
traces branch out from this node,
CC
CC
with each trace going to separate V
pins of the IC.
CC
Each V
pin must have a bypass capacitor with a low
CC
impedance to ground at the frequency of interest. Do not
share ground vias among multiple connections to the
PCB ground plane.
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Evaluates: MAX2120
MAX2120 Evaluation Kit
Figure 1. MAX2120 EV Kit Schematic
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Evaluates: MAX2120
MAX2120 Evaluation Kit
Figure 2. MAX2120 EV Kit PCB Layout—Component Placement Guide
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Evaluates: MAX2120
MAX2120 Evaluation Kit
Figure 3. MAX2120 EV Kit PCB Layout—Top
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Evaluates: MAX2120
MAX2120 Evaluation Kit
Figure 4. MAX2120 EV Kit PCB Layout—Bottom
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Evaluates: MAX2120
MAX2120 Evaluation Kit
Figure 5. MAX2120 EV Kit PCB Layout—Top Soldermask
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Evaluates: MAX2120
MAX2120 Evaluation Kit
Figure 6. MAX2120 EV Kit PCB Layout—Bottom Soldermask
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Evaluates: MAX2120
MAX2120 Evaluation Kit
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
11/07
5/10
0
1
2
Initial release
—
2, 5
3
Updated L1 in the Component List and Figure 1
Updated Quick Start section
11/14
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 specifications without notice at any time.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2014 Maxim Integrated Products, Inc.
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