MAX9271COAXEVKIT [MAXIM]
MAX9271/MAX9272 with FAKRA Coaxial Cable;
| 型号： | MAX9271COAXEVKIT |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | MAX9271/MAX9272 with FAKRA Coaxial Cable |
| 文件： | 总22页 (文件大小：1877K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
General Description
Features
●ꢀ Acceptsꢀ16-BitꢀParallelꢀVideo
The MAX9271 coax evaluation kit (EV kit) provides a prov-
en design to evaluate the MAX9271 high-bandwidth giga-
bit multimedia serial link (GMSL) serializer with spread
spectrum and full-duplex control channel with the use of
a standard FAKRA coaxial cable. The EV kit also includes
●ꢀ WindowsꢀXP-,ꢀWindowsꢀVista-,ꢀandꢀWindowsꢀ
7-Compatible Software
●ꢀ USB-PCꢀConnectionꢀ(CableꢀIncluded)
●ꢀ USBꢀPowered
®
®
®
Windows XP -, Windows Vista -, and Windows 7-com-
patible software that provides a simple graphical user
interface (GUI) for exercising the features of the device.
The EV kit comes with a MAX9271GTJ/V+ installed.
●ꢀ ProvenꢀPCBꢀLayout
●ꢀ FullyꢀAssembledꢀandꢀTested
For complete GMSL evaluation, order the MAX9271 coax
or STP EV kit and its companion board, the MAX9272
coax or STP EV kit. Note: The GUI software is identi-
cal for both the coax and STP EV kits for the MAX9271,
MAX9272, and MAX9273.
Ordering Information appears at end of data sheet.
For evaluation using a standard FAKRA coaxial cable,
order both the MAX9271 coax EV kit and its companion
board, the MAX9272 coax EV kit.
For evaluation using a standard Rosenberger twisted-pair
cable, order both the MAX9271 STP EV kit and its com-
panion board, the MAX9272 STP EV kit.
Component List
DESIGNATION
QTY
DESCRIPTION
DESIGNATION
QTY
DESCRIPTION
10µFꢀ±20%,ꢀ16VꢀX5Rꢀceramicꢀ
capacitorsꢀ(1206)
MurataꢀGRM31CR61C106M
1000pF ±5%, 50V C0G ceramic
capacitors (0402)
Murata GRM1555C1H102J
C22,ꢀC24–C26,ꢀ
5
C1–C4
4
C109
Not installed, ceramic capacitor
(1206)
C23
0
4
C5–C8,
C101–C105,
C111, C121
0.1µFꢀ±10%,ꢀ16VꢀX7Rꢀceramicꢀ
capacitorsꢀ(0603)
TDKꢀC1608X7R1C104K
14
22pF ±5%, 50V C0G ceramic
capacitorꢀ(0603)
Murata GRM1885C1H220J
C106,ꢀC107,ꢀ
C122, C123
C131, C141, 151
1µFꢀ±10%,ꢀ16VꢀX5Rꢀceramicꢀ
capacitorꢀ(0603)
TDKꢀC1608X5R1C105K
0.22µF ±10%, 50V X7R ceramic
capacitors (0805)
MurataꢀGRM21BR71H224K
C108
C110
1
1
C15,ꢀC16
2
1
0.033µF ±10%, 25V X7R
ceramicꢀcapacitorꢀ(0603)
Murata GRM188R71E333K
4.7µF ±20%, 25V X7R ceramic
capacitorꢀ(1206)
Murata GCM31CR71E475M
C21
Windows, Windows XP, Windows Vista and Windows 7 are registered
trademarks and registered service marks of Microsoft Corporation.
19-6595; Rev 0; 2/13
MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
Component List (continued)
DESIGNATION
QTY
DESCRIPTION
DESIGNATION
H_DIN12_6
H_DIN15_13
H_DIN5_0
QTY
DESCRIPTION
14-pin (2 x 7) header
R121
1
1.1kΩꢀ±5%ꢀresistorꢀ(0603)
1
1
1
R123,ꢀR126,ꢀ
R127,
R151–R158
6-pinꢀ(2ꢀxꢀ3)ꢀheader
12-pinꢀ(2ꢀxꢀ6)ꢀheaderꢀ
11
1kΩꢀ±5%ꢀresistorsꢀ(0603)
H_GPO,
Momentaryꢀpushbuttonꢀswitchꢀ
(6mm)
RESETU12
SWU15
U1
1
1
1
JU21–JU23,
JU153, JU154,
JU_USB+5V
7
2-pin headers
2-pin header
DIP switch
GMSL serializer (32 TQFN-EP*)
Maxim MAX9271GTJ/V+
H_PCLKIN
1
2
50Ωꢀright-angleꢀFAKRAꢀmaleꢀplug
Rosenberger 59S2AX-400A5-Y or
AmphenolꢀFA1-NCRP-PCB-9
1.8V, 500mA LDO regulator
(8 µMAX®-EP*)
Maxim MAX1792EUA18+
(Top Mark: AAAA)
J2, J3
U2
1
JU101–JU108,
JU141–JU144
Not installed, 2-pin headers—
shortꢀ(PCBꢀtrace)
0
UART-to-USBꢀconverterꢀ
(32 TQFP)
U10
U11
1
1
JU121, JU122,
JU151, JU152,
JU_BWS,
JU_LCCEN,
JU_MS,
JU_RXSDA,
JU_PWDN,
JU_TXSCL
93C46-typeꢀ3-wireꢀEEPROMꢀ
16-bitꢀarchitecture
(8 SO)
10
3-pin headers
Ultra-high-speed microcontroller
(44 TQFP)
Maxim DS89C450-ENL+
U12
1
Quad three-state buffer (14 SO)
ON Semi MC74AC125DR2
U13
U14
1
1
1
1
JU_CONF0,
JU_CONF1
2
4
4-pin headers
Level translator (14 TSSOP)
Maxim MAX3378EEUD+
300Ωꢀ±25%,ꢀ500mAꢀferriteꢀbeadsꢀ
(0603)
TDKꢀMMZ1608R301A
L21–L23, L101
I2C I/O expander (24 QSOP)
Maxim MAX7324AEG+
U15
LED120, LED127,
LED151–LED158
10
Red LEDs (0805)
USBꢀtype-Bꢀright-angleꢀfemaleꢀ
receptacle
USB1
LED126
R1, R2
1
0
0
2
2
1
1
1
2
Green LED (0805)
6MHzꢀcrystalꢀ(HCM49)
Hong Kong X’tals
SSL60000N1HK188F0-0
Notꢀinstalled,ꢀ49.9kΩꢀ±1%ꢀresistors
Notꢀinstalled,ꢀ0Ωꢀresistorsꢀ(0603)
49.9Ωꢀ±1%ꢀresistorsꢀ(0603)
27Ωꢀ±5%ꢀresistorsꢀ(0603)
1.5kΩꢀ±5%ꢀresistorꢀ(0603)
470Ωꢀ±5%ꢀresistorꢀ(0603)
2.2kΩꢀ±5%ꢀresistorꢀ(0603)
10kΩꢀ±5%ꢀresistorsꢀ(0603)
Y10
Y12
1
1
R3, R4
R5,ꢀR6
14.7456MHzꢀcrystalꢀ(HCM49)
Hong Kong X’tals
SSM1474518AFHHF0
R101, R102
R103
—
—
1
USBꢀhigh-speedꢀA-to-Bꢀcables,ꢀ6ft
R104
17
Shunts
R111
PCB:ꢀMAX9271ꢀCOAXꢀ
EVALUATION KIT
—
1
R112, R122
*EP = Exposed pad.
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
Component Suppliers
SUPPLIER
Amphenol RF
PHONE
WEBSITE
www.amphenolrf.com
800-627-7100
852-35112388
770-436-1300
602-244-6600
011-49-86ꢀ84-18-0
847-803-6100
Hong Kong X’tals Ltd.
www.hongkongcrystal.com
www.murata-northamerica.com
www.onsemi.com
Murata Electronics North America, Inc.
ON Semiconductor
Rosenberger Hochfrequenztechnik GmbH
TDK Corp.
www.rosenberger.de
www.component.tdk.com
Note: Indicate that you are using the MAX9271 when contacting these component suppliers.
MAX9271 EV Kit Files
FILE
INSTALL.EXE
DESCRIPTION
InstallsꢀtheꢀEVꢀkitꢀfilesꢀonꢀyourꢀcomputer
Application program for both the MAX9271 and MAX9272 devices
InstallsꢀtheꢀUSBꢀdeviceꢀdriverꢀ
MAX9271.EXE
CDM20600.EXE
UNINSTALL.EXE
USB_Driver_Help_200.PDF
Uninstalls the EV kit software
USBꢀdriverꢀinstallationꢀhelpꢀfile
Procedure
Quick Start
TheꢀEVꢀkitꢀisꢀfullyꢀassembledꢀandꢀtested.ꢀFollowꢀtheꢀstepsꢀ
belowꢀtoꢀverifyꢀboardꢀoperation:
Required Equipment
●ꢀ MAX9271ꢀcoaxꢀEVꢀkitꢀ(USBꢀcableꢀincluded)
1) Visit www.maximintegrated.com/evkitsoftware to
download the latest version of the EV kit software,
9271Rxx.ZIP. Save the EV kit software to a tempo-
raryꢀfolderꢀandꢀuncompressꢀtheꢀZIPꢀfile.
●ꢀ MAX9272ꢀcoaxꢀEVꢀkitꢀ(USBꢀcableꢀincluded)
●ꢀ 2mꢀRosenbergerꢀFAKRAꢀcableꢀassemblyꢀ
(included with the MAX9272 coax EV kit)
●ꢀ Parallelꢀdataꢀsourceꢀ(suchꢀasꢀdigitalꢀvideo)
2)ꢀ Installꢀ theꢀ EVꢀ kitꢀ softwareꢀ andꢀ USBꢀ driverꢀ onꢀ yourꢀ
computerꢀ byꢀ runningꢀ theꢀ INSTALL.EXEꢀ programꢀ
insideꢀ theꢀ temporaryꢀ folder.ꢀ Theꢀ programꢀ filesꢀ areꢀ
copiedꢀ toꢀ yourꢀ PCꢀ andꢀ iconsꢀ areꢀ createdꢀ inꢀ theꢀ
Windows Start | Programs | Maxim Evkit Software
| MAX9271 menu. During software installation, some
versionsꢀofꢀWindowsꢀmayꢀshowꢀaꢀwarningꢀmessageꢀ
indicating that this software is from an unknown pub-
lisher. This is not an error condition and it is safe to
proceed with installation. Administrator privileges are
requiredꢀtoꢀinstallꢀtheꢀUSBꢀdeviceꢀdriverꢀonꢀWindows.
●ꢀ Optional:ꢀFunctionꢀgeneratorꢀ(neededꢀonlyꢀifꢀparallelꢀ
data lacks a pixel clock)
●ꢀ User-suppliedꢀWindowsꢀXP,ꢀWindowsꢀVista,ꢀorꢀ
Windowsꢀ7ꢀPCꢀwithꢀaꢀspareꢀUSBꢀportꢀ(directꢀ500mAꢀ
connection required; do not use a bus-powered hub)
●ꢀ 5VꢀDC,ꢀ500mAꢀpowerꢀsupply
Note: In the following sections, software-related items are
identifiedꢀbyꢀbolding.ꢀTextꢀinꢀboldꢀrefersꢀtoꢀitemsꢀdirectlyꢀ
from the EV kit software. Text in bold and underlined
refersꢀtoꢀitemsꢀfromꢀtheꢀWindowsꢀoperatingꢀsystem.
3)ꢀ Verifyꢀthatꢀallꢀjumpersꢀareꢀinꢀtheirꢀdefaultꢀpositions,ꢀ
as shown in Table 1.
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
4)ꢀ Connectꢀtheꢀpositiveꢀterminalꢀofꢀtheꢀpowerꢀsupplyꢀtoꢀ
theꢀVINꢀPCBꢀpadꢀonꢀtheꢀMAX9271ꢀcoaxꢀEVꢀkitꢀandꢀ
theꢀnegativeꢀterminalꢀtoꢀtheꢀnearestꢀGNDꢀPCBꢀpadꢀ
on the coax MAX9271 EV kit. Also connect the posi-
tiveꢀterminalꢀofꢀtheꢀpowerꢀsupplyꢀtoꢀtheꢀVINꢀPCBꢀpadꢀ
on the MAX9272 coax EV kit and the negative termi-
nalꢀtoꢀtheꢀnearestꢀGNDꢀPCBꢀpadꢀonꢀtheꢀMAX9272ꢀ
coax EV kit.
13) Press the Connect button and the configuration win-
dow disappears.
14) The EV kit software main window appears, as shown
in Figure 1.
15) Press the Read All button to read all registers on the
MAX9271 and MAX9272.
Detailed Description of Software
5) Connect the FAKRA cable from the MAX9271 coax
EV kit J2 connector to the MAX9272 coax EV kit
J2ꢀconnector.ꢀOptionally,ꢀconnectꢀaꢀsecondꢀFAKRAꢀ
cable between the J3 connectors of the two boards.
The main window of the evaluation software (Figure 1)
shows a block diagram representing the MAX9271/
MAX9272ꢀ system.ꢀ Theꢀ leftꢀ columnꢀ showsꢀ MAX9271ꢀ
input data sources and the right column shows MAX9272
output data sinks.
6)ꢀ ConnectꢀtheꢀparallelꢀdataꢀsourceꢀtoꢀMAX9271ꢀcoaxꢀ
EVꢀ kitꢀ headersꢀ H_DIN15_13,ꢀ H_DIN12_6,ꢀ andꢀ
HDIN5_0. Connect pixel clock or function generator
to MAX9271 coax EV kit header H_PCLK_IN.
The Change Configuration button brings up the
Software Connect window (Figure 7), allowing the
softwareꢀGUIꢀtoꢀselectꢀwhichꢀsideꢀofꢀtheꢀlinkꢀtheꢀUSBꢀcableꢀ
should be plugged into and the Jumper Setting window
(Figure 8) to help in configuring the boards. Controlling
fromꢀtheꢀMAX9272ꢀsideꢀrequiresꢀchangingꢀsomeꢀjumperꢀ
settings, as described in this window. If the MAX9271
andꢀ MAX9272ꢀ deviceꢀ addressesꢀ haveꢀ beenꢀ previouslyꢀ
changedꢀfromꢀtheirꢀfactoryꢀpower-on-resetꢀ(POR)ꢀvalues,ꢀ
the new addresses must be specified in the Software
Connect window to allow register access.
7)ꢀ ConnectꢀtheꢀUSBꢀcableꢀfromꢀtheꢀPCꢀtoꢀtheꢀMAX9271ꢀ
coax EV kit board. A Windows message appears
when connecting the EV kit board to the PC for the
firstꢀ time.ꢀ Eachꢀ versionꢀ ofꢀ Windowsꢀ hasꢀ aꢀ slightlyꢀ
differentꢀmessage.ꢀIfꢀyouꢀseeꢀaꢀWindowsꢀmessageꢀ
stating ready to use, then proceed to the next step.
Otherwise,ꢀ openꢀ theꢀ USB_Driver_Help_200.PDFꢀ
document in the Windows Start | Programs | Maxim
Evkit Software | MAX9271ꢀmenuꢀtoꢀverifyꢀthatꢀtheꢀ
USBꢀdriverꢀwasꢀinstalledꢀsuccessfully.
The Baud Rate drop-down list sets the communications
baudꢀrate.ꢀTheꢀUSBꢀlinkꢀusesꢀtheꢀsameꢀbaudꢀrateꢀasꢀtheꢀ
MAX9271/MAX9272.ꢀNoteꢀthatꢀtheꢀbaudꢀrateꢀshouldꢀonlyꢀ
be changed one step at a time.
8)ꢀ VerifyꢀthatꢀMAX9271ꢀcoaxꢀEVꢀkitꢀLED120ꢀlightsꢀup,ꢀ
indicating that the microcontroller is powered and
enabled.
The Read All button reads all MAX9271 and MAX9272
device registers. The Reset to Default Values button
restoresꢀtheꢀrecommendedꢀfactoryꢀsettingsꢀandꢀtheꢀWrite
All button writes all MAX9271 and MAX9272 device
registers with the values shown in the GUI.
9)ꢀ VerifyꢀthatꢀMAX9272ꢀcoaxꢀEVꢀkitꢀLED120ꢀlightsꢀup,ꢀ
indicating that the microcontroller is powered and
enabled.
10)ꢀ Verifyꢀ thatꢀ MAX9272ꢀ coaxꢀ EVꢀ kitꢀ LED2ꢀ lightsꢀ up,ꢀ
indicatingꢀthatꢀtheꢀlinkꢀhasꢀbeenꢀsuccessfullyꢀestab-
lished. If LED2 is off or LED1 is on, double-check that
the PCLK_IN signal is clocking data.
The MAX9271 tab sheet (Figure 2) provides direct
access to all MAX9271 registers and the MAX9272 tab
sheet (Figure 3) provides direct access to all MAX9272
registers. Each register has its own Read and Write but-
ton. The small circle next to the Readꢀbuttonꢀturnsꢀyellowꢀ
to indicate an attempted read or write, red to indicate a
failed read or write, or green to indicate a successful read
or write operation.
11)ꢀ Startꢀ theꢀ MAX9271ꢀ coaxꢀ EVꢀ kitꢀ softwareꢀ byꢀ open-
ing its icon in the Start | Programs | Maxim Evkit
Software | MAX9271 menu. The EV kit software
configuration window appears, as shown in Figure 7.
2
2
12) I2C-to-I2C mode support: To enable I C-to-I C mode,
2
The MAX7324 tab sheet (Figure 4) controls the I C I/O
select I2C from the Bus drop-down list in the
expanderꢀonꢀtheꢀremoteꢀsideꢀofꢀtheꢀlink.ꢀWhenꢀtheꢀUSBꢀisꢀ
plugged into the MAX9271 coax EV kit, the MAX7324 tab
sheet controls the MAX7324 (U15) on the MAX9272 coax
EVꢀkit.ꢀNoteꢀthatꢀtheꢀMAX7324ꢀactuallyꢀhasꢀtwoꢀdeviceꢀ
addresses,ꢀbutꢀforꢀsimplicity,ꢀtheꢀsoftwareꢀGUIꢀonlyꢀdis-
playsꢀtheꢀdeviceꢀaddressꢀassociatedꢀwithꢀtheꢀMAX7324ꢀ
outputs. For details, refer to MAX7324 IC data sheet.
2
2
Serializer group box. To configure for I C-to-I C
mode,ꢀchangeꢀjumpersꢀJU_CONF1ꢀandꢀJU_CONF0,ꢀ
asꢀ shownꢀ inꢀ theꢀ dialogꢀ box.ꢀ Changeꢀ jumpersꢀ
JU_TXSCL and JU_RXSDA from pins 1-2 to 2-3 to
2
connect to the I C bus.
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
The PRBS Test tab sheet (Figure 5) uses the MAX9271
and MAX9272 registers to perform a pseudorandom
bitꢀ sequenceꢀ (PRBS)ꢀ error-rateꢀ test.ꢀ Selectꢀ theꢀ testꢀ
durationꢀ(maximumꢀ32767sꢀ=ꢀ9.1hrs)ꢀfromꢀtheꢀDuration
drop-down list in the Bit Error Rate Test group box and
press Start. The software GUI configures the MAX9271
andꢀMAX9272ꢀtoꢀbeginꢀtheꢀPRBSꢀtest,ꢀcountsꢀdownꢀtheꢀ
specifiedꢀdelayꢀtime,ꢀandꢀthenꢀreportsꢀtheꢀfinalꢀvalueꢀofꢀ
theꢀMAX9272ꢀPRBSERRꢀregister.
user-supplied devices besides the on-board MAX9271,
MAX9272, and MAX7324. The Device Address,
Register, and Dataꢀ drop-downꢀ listsꢀ specifyꢀ theꢀ deviceꢀ
address and the register within the device, as well as
oneꢀ optionalꢀ byteꢀ ofꢀ dataꢀ toꢀ beꢀ written.ꢀ Pressingꢀ Write
Registerꢀ writesꢀ 1ꢀ byteꢀ ofꢀ dataꢀ toꢀ theꢀ specifiedꢀ deviceꢀ
register. Pressing Read Register reads the specified
device register and reports the result in the Interface
History window. Devices that are not register-based
(suchꢀasꢀtheꢀMAX7324)ꢀareꢀsupportedꢀbyꢀSend Data (no
register) and Receive Data (no register). User-supplied
devices requiring other interface protocols must use Raw
TX byte codesꢀ toꢀ communicate.ꢀ Noteꢀ thatꢀ inꢀ bypassꢀ
mode, raw data is passed to the user-supplied slave
deviceꢀdirectlyꢀwithoutꢀmodification.
The Interface History and Low Level Access tab sheet
(Figureꢀ 6)ꢀ showsꢀ theꢀ recentꢀ low-levelꢀ communicationsꢀ
activityꢀ betweenꢀ theꢀ softwareꢀ GUIꢀ andꢀ theꢀ MAX9271/
MAX9272 devices. The Register Access group provides
arbitraryꢀdeviceꢀread/writeꢀcontrol,ꢀs”upportingꢀadditionalꢀ
Figure 1. MAX9271/MAX9272 EV Kit Software Main Window (Block Diagram Tab)
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
Figure 2. MAX9271/MAX9272 EV Kit Software Main Window (MAX9271 Tab)
Figure 3. MAX9271/MAX9272 EV Kit Software Main Window (MAX9272 Tab)
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
Figure 4. MAX9271/MAX9272 EV Kit Software Main Window (MAX7324 Tab)
Figure 5. MAX9271/MAX9272 EV Kit Software Main Window (PRBS Tab)
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
Figure 6. MAX9271 EV Kit Software Main Window (Interface History and Low Level Access Tab)
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
Figure 7. MAX9271/MAX9272 EV Kit Software Connect Window
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
with FAKRA Coaxial Cable
Detailed Description of Hardware
Detailed Description of Firmware
Theꢀ MAX9271ꢀ coaxꢀ EVꢀ kitꢀ providesꢀ aꢀ provenꢀ layoutꢀ forꢀ
the MAX9271 GMSL serializer with the use of a standard
FAKRAꢀcoaxialꢀcable.ꢀOn-boardꢀlevelꢀtranslatorsꢀandꢀeasy-
to-useꢀUSB-PCꢀconnectionꢀareꢀincludedꢀonꢀtheꢀEVꢀkit.
The DS89C450 microcontroller (U12) runs custom firm-
ware that ensures that no breaks occur within register
read/write commands. The firmware records 9-bit even-
parityꢀdataꢀreceivedꢀfromꢀtheꢀUSBꢀinterfaceꢀwhileꢀRTSꢀisꢀ
set,ꢀandꢀplaysꢀbackꢀtheꢀ9-bitꢀdataꢀwithꢀ1.5ꢀstopꢀbitsꢀtimingꢀ
when RTS is cleared. Data received from the MAX9271 is
immediatelyꢀrelayedꢀtoꢀtheꢀUSB.
TheꢀMAX9271ꢀcoaxꢀEVꢀkitꢀboardꢀlayoutꢀisꢀdividedꢀintoꢀfourꢀ
principal sections:
1)ꢀ Power-supplyꢀ circuitry.ꢀ On-boardꢀ LDOꢀ regulatorꢀ U2ꢀ
powers the AVDD, DVDD, and IOVDD supplies from
VIN.
The firmware also supports a small set of commands,
available when RTS is clear. Since all register read/
write requests are sent with RTS set, there is no conflict
between register data and firmware commands. These
firmwareꢀ commandsꢀ areꢀ issuedꢀ automaticallyꢀ byꢀ theꢀ
MAX9271 coax EV kit software GUI. The following infor-
mationꢀisꢀprovidedꢀforꢀreferenceꢀonly:
2) MAX9271 and support components.
3) Microcontrollers (U10–U14).
2
4) I C slave device (U15).
2
The microcontroller and I C slave device sections are
●ꢀ Firmwareꢀ commandꢀ “?”ꢀ printsꢀ theꢀ firmwareꢀ versionꢀ
identical on the MAX9271–MAX9273 coax EV kits.
banner message and brief command list.
2
Microcontroller-Supplied I C Interface
●ꢀ Firmwareꢀ commandꢀ “B”ꢀ changesꢀ theꢀ baudꢀ rateꢀ byꢀ
changing the internal TH1 baud-rate divisor. Refer to
theꢀ firmwareꢀ helpꢀ commandꢀ “?”ꢀ forꢀ details.ꢀ Pressingꢀ
RESETU12ꢀ resetsꢀ theꢀ USBꢀ baudꢀ rateꢀ toꢀ 921,600ꢀ
baud.ꢀTheꢀsoftwareꢀGUIꢀautomaticallyꢀsendsꢀtheꢀbaud-
rate change command.
2
The microcontroller-supplied I C interface (through U12
and U14) is intended to operate while both serializer and
deserialzer boards are powered on and locked. If the
2
microcontroller-supplied I Cꢀinterfaceꢀisꢀtoꢀbeꢀusedꢀinꢀanyꢀ
other case, one of the following should be done: Use an
2
IOVDD of 2.2V or greater with the I C interface, or use a
●ꢀ Firmwareꢀ commandꢀ “T”ꢀ supportsꢀ wakingꢀ upꢀ theꢀ
MAX9271 from the MAX9272 side of the link.
Commandꢀ“T”ꢀperformsꢀaꢀdummyꢀread,ꢀfollowedꢀbyꢀaꢀ
delayꢀonꢀtheꢀorderꢀofꢀ1msꢀtoꢀ8ms,ꢀandꢀfinallyꢀwritesꢀaꢀ
registerꢀ value.ꢀ Forꢀ example,ꢀ sendꢀ “T810504800483”ꢀ
toꢀreadꢀfromꢀdeviceꢀaddressꢀ0x81ꢀregisterꢀ0x05,ꢀdelayꢀ
4ms, then write to device address 0x80 register 0x04
data 0x83. This is the MAX9271 wake-up sequence for
the default device addresses.
2
100kbps I C data rate.
User-Supplied Interface
To use the MAX9271 coax EV kit with a user-supplied
interface,ꢀfirstꢀcutꢀtheꢀPCBꢀtracesꢀatꢀjumpersꢀJU141ꢀandꢀ
JU142.ꢀNext,ꢀapplyꢀyourꢀownꢀTX/SCLꢀsignalꢀatꢀtheꢀU1ꢀsideꢀ
ofꢀ jumperꢀ JU141ꢀ andꢀ RX/SDAꢀ atꢀ theꢀ U1ꢀ sideꢀ ofꢀ jumperꢀ
JU142. Refer to the MAX9271 and MAX9272 IC data
sheets for details about UART protocol for base mode,
write data format, read data format, selecting base mode or
●ꢀ Firmwareꢀ commandsꢀ “R”ꢀ andꢀ “W”ꢀ readꢀ andꢀ writeꢀ
device registers. The 8-bit device address, register
address, length, and data are sent in hexadecimal
format.ꢀOnꢀsuccess,ꢀtheꢀreturnꢀcodeꢀisꢀ“+”ꢀfollowedꢀbyꢀ
theꢀreadꢀdata.ꢀOnꢀfailure,ꢀtheꢀreturnꢀcodeꢀisꢀ“-”.
2
bypassꢀmode,ꢀandꢀselectingꢀaꢀUARTꢀorꢀI C slave device.
User-Supplied Power Supply
The MAX9271 and MAX9272 coax EV kits are
poweredꢀcompletelyꢀfromꢀtheꢀUSBꢀportꢀbyꢀdefault.ꢀJumperꢀ
JU_USB+5Vꢀ connectsꢀ theꢀ 5Vꢀ USBꢀ supplyꢀ andꢀ theꢀ VINꢀ
powerꢀsupply.
●ꢀ Someꢀcommandsꢀareꢀusedꢀonlyꢀduringꢀfirmwareꢀdevel-
opment.ꢀFirmwareꢀcommandꢀ“S”ꢀsimulatesꢀaꢀdummyꢀ
deviceꢀ usingꢀ on-chipꢀ memory,ꢀ insteadꢀ ofꢀ deviceꢀ
registers used during firmware development. Firmware
commandꢀ “~”ꢀ printsꢀ aꢀ diagnosticꢀ traceꢀ dumpꢀ usedꢀ
during firmware development. Firmware commands
“1”ꢀ andꢀ “2”ꢀ performꢀ HDCPꢀ linkꢀ authenticationꢀ checkꢀ
operations used during firmware development. In
normal operation, these commands are not used for
the MAX9271.
To provide different power supplies to AVDD, DVDD, and
IOVDD,ꢀremoveꢀtheꢀshuntsꢀfromꢀjumpersꢀJU21–JU23ꢀandꢀ
applyꢀexternalꢀuser-suppliedꢀpowerꢀatꢀtheꢀAVDD,ꢀDVDD,ꢀ
andꢀIOVDDꢀovalꢀPCBꢀpads,ꢀrespectively.
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Table 1. Jumper Descriptions
SHUNT
POSITION
JUMPER
SIGNAL
DESCRIPTION
GPIO1/BWSꢀ=ꢀhigh.ꢀWhenꢀLCCENꢀ=ꢀlow,ꢀBWSꢀ=ꢀhighꢀselectsꢀ30-bitꢀinputꢀlatchꢀ
(see Tables 2 and 3).
1-2
JU_BWS
GPIO1/BWS
GPIO1/BWSꢀ=ꢀlow.ꢀWhenꢀLCCENꢀ=ꢀlow,ꢀBWSꢀ=ꢀlowꢀselectsꢀ22-bitꢀinputꢀlatchꢀ
(see Tables 2 and 3).
2-3
1-2
1-3
CONF0ꢀ=ꢀhighꢀ(seeꢀTableꢀ4).
CONF0ꢀ=ꢀmidꢀ(seeꢀTableꢀ4).
CONF0ꢀ=ꢀlowꢀ(seeꢀTableꢀ4).
CONF1ꢀ=ꢀhighꢀ(seeꢀTableꢀ4).
CONF1ꢀ=ꢀmidꢀ(seeꢀTableꢀ4).
CONF1ꢀ=ꢀlowꢀ(seeꢀTableꢀ4).
JU_CONF0
JU_CONF1
CONF0
CONF1
1-4*
1-2
1-3*
1-4
LCCENꢀ=ꢀhigh.ꢀEnableꢀlocalꢀcontrol-channelꢀsignals.ꢀRequired for
software control.
1-2*
2-3
JU_LCCEN
JU_MS
LCCEN
LCCENꢀ=ꢀlow.ꢀUseꢀalternateꢀfunctions.ꢀSoftware control is not supported in
this mode because there is no TX/RX or SCL/SDA control.
MS/HVENꢀ=ꢀhigh.ꢀWhenꢀLCCENꢀ=ꢀhigh,ꢀMS/HEVNꢀ=ꢀhighꢀselectsꢀbaseꢀmodeꢀ
orꢀbypassꢀmodeꢀ(seeꢀTablesꢀ2ꢀandꢀ3).
1-2
MS/HVEN
MS/HVENꢀ=ꢀlow.ꢀWhenꢀLCCENꢀ=ꢀhigh,ꢀMS/HEVNꢀ=ꢀhighꢀselectsꢀbaseꢀmodeꢀ
orꢀbypassꢀmodeꢀ(seeꢀTablesꢀ2ꢀandꢀ3).
2-3*
1-2*
2-3
PWDNꢀ=ꢀhigh.ꢀNormalꢀoperation.
JU_PWDN
JU_RXSDA
JU_TXSCL
JU_USB+5V
JU21
PWDN
RX/SDA/EDC
TX/SCL/DBL
Busꢀpower
AVDD
PWDNꢀ=ꢀlow.ꢀPower-down.
1-2*
2-3
RX/SDAꢀ=ꢀRXꢀfromꢀU14ꢀ(seeꢀTablesꢀ2ꢀandꢀ3).
RX/SDAꢀ=ꢀSDAꢀfromꢀU14ꢀ(seeꢀTablesꢀ2ꢀandꢀ3).
TX/SCLꢀ=ꢀTXꢀfromꢀU14ꢀ(seeꢀTablesꢀ2ꢀandꢀ3).
TX/SCLꢀ=ꢀSCLꢀfromꢀU14ꢀ(seeꢀTablesꢀ2ꢀandꢀ3).
VINꢀconnectsꢀtoꢀUSB+5V.
1-2*
2-3
1-2
Open*
1-2*
Open
1-2*
Open
1-2*
Open
USBꢀpowerꢀisꢀnotꢀconnectedꢀtoꢀlinkꢀcableꢀpower.
AVDDꢀpowerꢀfromꢀ1.8VꢀLDOꢀU2,ꢀpoweredꢀbyꢀVIN.
AVDD must be provided from an external source.
DVDDꢀpowerꢀfromꢀ1.8VꢀLDOꢀU2,ꢀpoweredꢀbyꢀVIN.
DVDD must be provided from an external source.
IOVDDꢀpowerꢀfromꢀ1.8VꢀLDOꢀU2,ꢀpoweredꢀbyꢀVIN.
IOVDD must be provided from an external source.
JU22
DVDD
JU23
IOVDD
JU101
JU102
JU103
JU104
JU105
JU106
JU107
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
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Table 1. Jumper Descriptions (continued)
SHUNT
POSITION
JUMPER
SIGNAL
DESCRIPTION
JU108
JU121
JU122
JU141
JU142
JU143
JU144
Reserved
Reserved
Reserved
TX/SCL
RX/SDA
LFLT
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Pinꢀ1ꢀonly*
Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Not installed* Connects U1 to U12 through level translator U14.
Not installed* Connects U1 to U12 through level translator U14.
Not installed* ConnectsꢀU1ꢀtoꢀUSBꢀthroughꢀlevelꢀtranslatorꢀU14.
Not installed* ConnectsꢀU1ꢀtoꢀUSBꢀthroughꢀlevelꢀtranslatorꢀU14.
INT
1-2*
2-3
Selects U15 I2C device address.
JU151
U15 AD2
U15 AD0
Selects U15 I2C device address.
Open
1-2*
Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Selects U15 I2C device address.
JU152
JU153
2-3
Selects U15 I2C device address.
Open
1-2*
Reservedꢀforꢀfactoryꢀdiagnosticꢀtests.
Connects U15 MAX7324 to I2C bus.
Disconnects U15 MAX7324 from I2C bus. MS can be high.
Connects U15 MAX7324 to I2C bus.
Disconnects U15 MAX7324 from I2C bus. MS can be high.
U15 SDA
U15 SCL
Open
1-2*
JU154
Open
*Default position.
Table 2. Jumper Descriptions (LCCEN = High)
SHUNT
POSITION
JUMPER
SIGNAL
DESCRIPTION
1-2
GPIO1/BWSꢀ=ꢀhigh.
GPIO1/BWSꢀ=ꢀlow.
JU_BWS
GPIO1
2-3
LCCENꢀ=ꢀhigh.ꢀEnableꢀlocalꢀcontrol-channelꢀsignals.ꢀ
Required for software control.
JU_LCCEN
LCCEN
1-2*
1-2
MS/HVENꢀ=ꢀhigh.ꢀFull-duplexꢀbypassꢀmode.ꢀDevice registers not accessible.
JU_MS
MS
MS/HVENꢀ=ꢀlow.ꢀHalf-duplexꢀbaseꢀmode.ꢀ
Required when writing to device registers.
2-3*
RX/SDAꢀ=ꢀRXꢀfromꢀU14.
Required when control channel = UART-to-I2C/UART.
1-2*
2-3
JU_RXSDA
RX/SDA
TX/SCL
RX/SDAꢀ=ꢀSDAꢀfromꢀU14.ꢀRequired when control channel = I2C-to-I2C.
TX/SCLꢀ=ꢀTXꢀfromꢀU14.ꢀ
Required when control channel = UART-to-I2C/UART.
1-2*
2-3
JU_TXSCL
TX/SCLꢀ=ꢀSCLꢀfromꢀU14.ꢀRequired when control channel = I2C-to-I2C.
*Default position.
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Table 3. Jumper Descriptions (LCCEN = Low)
SHUNT
POSITION
JUMPER
JU_BWS
JU_LCCEN
JU_MS
SIGNAL
DESCRIPTION
1-2
GPIO1/BWSꢀ=ꢀhigh.ꢀ30-bitꢀinputꢀlatch.
BWS
2-3
GPIO1/BWSꢀ=ꢀlow.ꢀ22-bitꢀinputꢀlatch.
LCCENꢀ=ꢀlow.ꢀUseꢀalternateꢀfunctions.ꢀSoftware control is not supported in
this mode because there is no TX/RX or SCL/SDA control.
LCCEN
HVEN
2-3
1-2
2-3
1-2
MS/HVENꢀ=ꢀhigh.
MS/HVENꢀ=ꢀlow.ꢀ
EDCꢀ=ꢀhigh.ꢀEnableꢀerrorꢀdetectionꢀandꢀcorrection.
JU_RXSDA
JU_TXSCL
EDC
EDCꢀ=ꢀlowꢀ(internalꢀpulldownꢀtoꢀground).ꢀDisableꢀerrorꢀdetectionꢀ
and correction.
Open
1-2
DBLꢀ=ꢀhigh.ꢀEnableꢀdouble-inputꢀmode.
DBL
Open
DBLꢀ=ꢀlowꢀ(internalꢀpulldownꢀtoꢀground.)ꢀDisableꢀdouble-inputꢀmode.
Table 4. Jumper Descriptions (JU_CONF1, JU_CONF0)
JU_CONF1
SHUNT
POSITION
JU_CONF0
SHUNT
POSITION
OUTPUT
CONNECTION
PCLKIN
LATCH EDGE
CONTROL
CHANNEL
CONF1
CONF0
1-4
1-3
1-2
1-4*
1-3
1-2
1-4
1-3
1-2
Low
Mid
Coax
Coax
Falling
Falling
I2C-to-I2C
UART-to-I2C/UART
I2C-to-I2C
1-4
Low
High
Low
Mid
Coax
Rising
Coax
Rising
UART-to-I2C/UART
Do not use
1-3*
Mid
Do not use
Do not use
Do not use
Do not use
Reserved
Do not use
Do not use
Do not use
Do not use
Reserved
High
Low
Mid
Do not use
Do not use
1-2
High
Do not use
High
Reserved
*Default position.
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Figure 8. Initial Jumper Settings for UART Mode
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2
Figure 9. Initial Jumper Settings for I C Mode
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Figure 10a. MAX9271 Coax EV Kit Schematic (Sheet 1 of 3)
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Figure 10b. MAX9271 Coax EV Kit Schematic (Sheet 2 of 3)
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Figure 10c. MAX9271 Coax EV Kit Schematic (Sheet 3 of 3)
1.0’’
Figure 11. MAX9271 Coax EV Kit Component Placement Guide—Component Side
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1.0’’
Figure 12. MAX9271 Coax EV Kit PCB Layout—Component Side
1.0’’
Figure 13. MAX9271 Coax EV Kit PCB Layout—Ground Layer 2
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1.0’’
Figure 14. MAX9271 Coax EV Kit PCB Layout—Power Layer 3
1.0’’
Figure 15. MAX9271 Coax EV Kit PCB Layout—Solder Side
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MAX9271 Coax Evaluation Kit
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Ordering Information
PART
TYPE
MAX9271COAXEVKIT#
#Denotes RoHS compliant.
EV Kit
Note: The MAX9271 coax EV kit is normally ordered with its
companion board, the MAX9272 coax EV kit.
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MAX9271 Coax Evaluation Kit
Evaluates: MAX9271/MAX9272
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Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
0
2/13
Initial release
—
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.
2013 Maxim Integrated Products, Inc.
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