19-5177; Rev 0; 3/10
MAX9249 Evaluation Kit
Features
The MAX9249 evaluation kit (EV kit) provides a proven
design to evaluate the MAX9249 gigabit multimedia
serial link (GMSL) with spread spectrum and full-duplex
control channel. The EV kit also includes Windows XPM-,
Windows VistaM-, and WindowsM 7-compatible software
that provides a simple graphical user interface (GUI) for
exercising the features of the MAX9249.
S Accepts 28-Bit Parallel Video and
The EV kit comes with a MAX9249GCM/V+ installed.
S Proven PCB Layout
For complete GMSL evaluation, order both the MAX9249
EV kit and its companion board, the MAX9260 EV kit.
S Fully Assembled and Tested
I2S
Audio
S On-Board S/PDIF-to-I2S Audio Converter
S Windows XP-, Windows Vista-, and
Windows 7-Compatible Software
S USB-PC Connection (Cable Included)
S USB Powered
Ordering Information
PART
TYPE
MAX9249EVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
Note: The MAX9249 EV kit should be ordered with its companion board, the MAX9260 EV kit.
Component List
DESIGNATION
QTY
BC5–BC28
C1–C9
DESCRIPTION
24
0.1FF Q10%, 16V X5R
ceramic capacitors (0402)
Murata GRM155R61C104K
9
0.01FF Q10%, 25V X7R
ceramic capacitors (0402)
Murata GRM155R71E103K
DESIGNATION
QTY
DESCRIPTION
C23, C33, C263
0
Not installed, capacitors
(1206)
C106, C107, C122,
C123
4
22pF Q5%, 50V C0G
ceramic capacitors (0603)
Murata GRM1885C1H220J
C108, C265, C268
3
1FF Q10%, 16V X5R ceramic
capacitors (0603)
TDK C1608X5R1C105K
C110
1
0.033FF Q10%, 25V X7R
ceramic capacitor (0603)
Murata GRM188R71E333K
C10–C18, C101–
105, C111, C121,
C131, C141, C151,
C211–C214, C221,
C231, C241, C251
27
C19, C20
2
0.22FF Q10%, 50V X7R
ceramic capacitors (0805)
Murata GRM21BR71H224K
C201, C202, C203
3
1FF Q20%, 6.3V X5R
ceramic capacitors (0402)
TDK C1005X5R0J105M
C21, C31, C261
3
4.7FF Q20%, 25V X7R ceramic capacitors (1206)
Murata GCM31CR71E475M
C205, C206, C232,
C266, C269
5
0.01FF Q5%, 25V C0G
ceramic capacitors (0603)
TDK C1608C0G1E103J
10
10FF Q20%, 16V X5R ceramic capacitors (1206)
Murata GRM31CR61C106M
C207
1
1000pF Q10%, 50V X7R
ceramic capacitor (0805)
Murata GCM216R71H102K
C22, C24, C25,
C26, C32, C34,
C109, C262, C264,
C267
0.1FF Q10%, 16V X7R ceramic capacitors (0603)
TDK C1608X7R1C104K
Windows, Windows XP, and Windows Vista are registered
trademarks of Microsoft Corp.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Evaluates: MAX9249
General Description
Evaluates: MAX9249
MAX9249 Evaluation Kit
Component List (continued)
DESIGNATION
QTY
C208
1
0.022FF Q10%, 25V X7R
ceramic capacitor (0402)
TDK C1005X7R1E223K
C233
0
Not installed, capacitor
(0603)
C500, C527, C537,
C547, C557, C567
6
100FF Q20%, 6.3V X5R
ceramic capacitors (1210)
Murata GRM32ER60J107M
C501, C502
2
1000pF Q10%, 50V X7R
ceramic capacitors (0603)
Murata GRM188R71H102K
C503, C504, C505,
C511–C515, C521,
C523, C531, C533,
C541, C543, C551,
C553, C560
17
0.1FF Q10%, 16V X7R ceramic capacitors (0603)
Murata GRM188R71C104K
C510
1
10FF Q10%, 16V X7R ceramic capacitor (0603)
Murata GRM188R71C106K
C520, C526, C530,
C536, C540, C546,
C550, C556
8
10FF Q20%, 6.3V X5R ceramic capacitors (0603)
Murata GRM188R60J106M
C522, C532, C542,
C552
4
220pF Q10%, 50V X7R
ceramic capacitors (0603)
Murata GRM188R71H221K
FB501–FB505
5
Ferrite beads (0603)
Murata BLM18PG121SN1D
H1
1
72-pin (2 x 36) header
H2
1
10-pin (2 x 5) header
H3
0
Not installed, 10-pin (2 x 5)
header
1
High-speed automotive
connector
Rosenberger
D4S20F-40MA5-Z
J1
DESCRIPTION
J2 JTAGU500
1
9-pin header
(2 x 5, key pin 7)
J10
1
USB type-B, right-angle
female receptacle
J21
1
Phono jack
J23
0
Not installed, SMA connector
DESIGNATION
QTY
DESCRIPTION
JU1, JU2,
JU4–JU9, JU121,
JU151, JU152,
JU501, JU502,
JU503
14
3-pin headers
JU10, JU21,
JU22, JU23,
JU31, JU153,
JU154, JU191–
JU194, JU210,
JU261, JU500,
JU520, JU530,
JU540, JU550,
JU560, JUCNTL0,
JUCNTL1,
JUCNTL2
22
2-pin headers
JU101–JU108,
JU141–JU144,
JU211–JU214
0
Not installed, 2-pin headers—
shorted by PCB trace
L21, L22, L23, L31,
L101, L261
6
Ferrite beads (0603)
TDK MMZ1608R301A
L262
1
3.3FH Q10% inductor (0805)
Murata LQM21NN3R3K10
L520, L530, L540,
L550
4
1.8FH, 2.2A inductors
(5mm x 5mm x 3mm)
Sumida
CDRH4D28NP-1R8NC
LED1, LED120,
LED151–LED158
10
Red LEDs (0805)
LED2, LED500
2
Green LEDs (0805)
Q1, Q2, Q500
3
n-channel MOSFETs (SOT23)
Central Semi 2N7002
R1, R2
2
45.3kI Q1% resistors (0603)
R3, R4
2
4.99kI Q1% resistors (0603)
R5, R11, R12,
R111
4
2.2kI Q5% resistors (0603)
R13
1
0I Q5% resistor (0603)
R14, R15, R123,
R151–R158, R203
12
1kI Q5% resistors (0603)
R101, R102
2
27I Q5% resistors (0603)
R103
1
1.5kI Q5% resistor (0603)
R104
1
470I Q5% resistor (0603)
2 _______________________________________________________________________________________
MAX9249 Evaluation Kit
DESIGNATION
QTY
DESCRIPTION
R112, R122, R211,
R212
4
10kI Q5% resistors (0603)
R121
1
1.1kI Q5% resistor (0603)
R191, R192, R201,
R202
4
4.7kI Q5% resistors (0603)
R205
1
75kI Q5% resistor (0603)
R208
1
3.01kI Q1% resistor (0603)
R233
0
Not installed, resistor (0603)
R500, R501, R502
3
1kI Q5% resistors (0603)
R503–R506
4
10kI Q5% resistors (0603)
R507
1
160I Q5% resistor (0603)
R510–R515
6
5.1kI Q5% resistors (0603)
R521, R531, R541,
R551
4
10I Q5% resistors (0603)
R522
1
110kI Q5% resistor (0603)
R524
1
75kI Q1% resistor (0603)
R525
1
24kI Q1% resistor (0603)
R532
1
82kI Q5% resistor (0603)
R534
1
30.1kI Q1% resistor (0603)
R535
1
14kI Q1% resistor (0603)
R542
1
39kI Q5% resistor (0603)
R544
1
22.1kI Q1% resistor (0603)
R545
1
44.2kI Q1% resistor (0603)
R552
1
68kI Q5% resistor (0603)
R561
1
1.5kI Q1% resistor (0603)
R562
1
1kI Q1% resistor (0603)
RT500–RT504
5
100I Q5% resistors (0402)
SW1
1
3-pin header
SW122, SW150–
SW157, SW221
10
Momentary switches
TP500
1
Black multipurpose test point
TP501
1
White multipurpose test point
1
Gigabit multimedia serial link,
LVDS inputs
(48 TQFP-EP*)
Maxim MAX9249GCM/V+
1
1.8V, 500mA LDO regulator
(8 FMAX®)
Maxim MAX1792EUA18+
(Top Mark: AAAA)
U1
U2
DESIGNATION
QTY
DESCRIPTION
U3, U26
2
3.3V, 500mA LDO regulators
(8 FMAX)
Maxim MAX1792EUA33+
(Top Mark: AAAC)
U10
1
UART-to-USB converter
(32 TQFP)
U11
1
93C46 type 3-wire EEPROM
16-bit architecture (8 SO)
U12
1
Ultra-high-speed microcontroller (44 TQFP)
Maxim DS89C450-ENL+
U13
1
Quad three-state buffer
(14 SO)
Fairchild 74AC125SC
U14
1
Level translator (14 TSSOP)
Maxim MAX3378EEUD+
U15
1
I2C I/O expander (24 QSOP)
Maxim MAX7324AEG+
U19
1
Dual bidirectional level
translator (8 SOT23)
Maxim MAX3373EEKA+
(Top Mark: AAKS)
U20
1
Digital audio receiver
(28 TSSOP)
U21
1
16-bit, dual-supply bus transceiver (48 TSSOP)
1
Low-power, dual-voltage FP
supervisor (5 SC70)
Maxim MAX6736XKTGD3+
(Top Mark: AFS)
2
2:1 noninverting multiplexers
(SC70)
Fairchild NC7SV157P6X_NL
(Top Mark:VF7)
1
Schmitt trigger buffer
(5 SC70)
Fairchild NC7SV17P5X_NL
(Top Mark: V17)
U22
U23, U24
U25
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
_______________________________________________________________________________________ 3
Evaluates: MAX9249
Component List (continued)
Evaluates: MAX9249
MAX9249 Evaluation Kit
Component List (continued)
DESIGNATION
QTY
DESCRIPTION
U500
1
Cyclone III FPGA
(324 FBGA)
Altera EP3C25F324C8N
U510
1
16M x 16-bit flash memory
(64 Easy BGA)
U520, U530, U540
Step-down DC-to-DC
regulators (8 SO)
Maxim MAX1951ESA+
3
1
Step-down DC-to-DC
regulator (8 SO)
Maxim MAX1952ESA+
U560
1
0.2V dropout LDO regulator
(10 FMAX)
Maxim MAX8516EUB+
Y10
1
6MHz crystal (HCM49)
Hong Kong X’tals
SSL60000N1HK188F0-0
U550
DESIGNATION
QTY
DESCRIPTION
Y12
1
14.7456MHz crystal (HCM49)
Hong Kong X’tals
SSM14745N1HK188F0-0
Y23
1
12MHz, 3.3V low-jitter clock
(7mm x 5mm)
Y500
1
50MHz clock oscillator
Hongkong X’tals
C437BM5000000AE00
—
1
USB high-speed A-to-B
cables, 6ft
—
30
Shunts
—
1
PCB: MAX9249 EVALUATION
KIT+
*EP = Exposed pad.
Component Suppliers
SUPPLIER
PHONE
WEBSITE
Altera Corp.
800-800-3753
www.altera.com
Central Semiconductor Corp.
631-435-1110
www.centralsemi.com
Fairchild Semiconductor
888-522-5372
www.fairchildsemi.com
852-35112388
www.hongkongcrystal.com
Hong Kong X’tals Ltd.
MD ELEKTRONIK GmbH
011-49-86-38-604-0
www.md-elektronik-gmbh.de
Murata Electronics North America, Inc.
770-436-1300
www.murata-northamerica.com
Sumida Corp.
847-545-6700
www.sumida.com
Rosenberger Hochfrequenztechnik GmbH
TDK Corp.
011-49-86 84-18-0
www.rosenberger.de
847-803-6100
www.component.tdk.com
Note: Indicate that you are using the MAX9249 when contacting these component suppliers.
MAX9249 EV Kit Files
FILE
DESCRIPTION
INSTALL.EXE
Installs the EV kit files on your computer
MAX9249.EXE
Application program
CDM20600.EXE
Installs the USB device driver
UNINSTALL.EXE
Uninstalls the EV kit software
USB_Driver_Help_200.PDF
USB driver installation help file
4 _______________________________________________________________________________________
MAX9249 Evaluation Kit
Required Equipment
•
MAX9249 EV kit (USB cable included)
•
MAX9260 EV kit (USB cable included)
•
2m Rosenberger cable assembly (included in
MAX9260 EV kit)
•
Parallel data source (e.g., digital video)
•
Optional: Function generator (needed only if parallel data lacks a pixel clock)
•
Optional: I2S or S/PDIF audio source
•
Optional: Pair of 8I speakers
•
Optional: 3.5mm stereo headphones (16I or
greater)
•
Windows XP, Windows Vista, or Windows 7 PC
with a spare USB port (direct 500mA connection
required; do not use a hub)
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and underlined refers to items from the Windows operating system.
Procedure
The MAX9249 EV kit is fully assembled and tested.
Follow the steps below to verify board operation:
1) Visit www.maxim-ic.com/evkitsoftware to download the latest version of the EV kit software,
9249Rxx.ZIP. Save the EV kit software to a temporary folder and uncompress the ZIP file.
2) Install the EV kit software and USB driver on your
computer by running the INSTALL.EXE program
inside the temporary folder. The program files are
copied to your PC and icons are created in the
Windows Start | Programs menu. During software
installation, some versions of Windows may show
a warning message indicating that this software
is from an unknown publisher. This is not an error
condition and it is safe to proceed with installation.
Administrator privileges are required to install the
USB device driver on Windows.
3) Verify that all jumpers are in their default positions,
as shown in Table 1.
4) Connect the Rosenberger cable from MAX9249 EV
kit connector J1 to MAX9260 EV kit connector J1.
5) Connect the parallel data source to header H1 (if
using static data without a pixel clock, use an external function generator to drive PCLK_IN).
6) Optional Audio Demo: Connect the S/PDIF audio
source (e.g., DVD player digital output) to MAX9249
EV kit phono jack J21. Or, connect an I2S audio
source to header H1 and remove jumper JU210.
Connect speakers to MAX9260 EV kit SPKR_L+/
SPKR_L- and SPKR_R+/SPKR_R- oval pads, or plug
headphones into J206 headphone jack.
7) Connect the USB cable from the PC to the EV kit
board. A Windows message appears when connecting the EV kit board to the PC for the first time.
Each version of Windows has a slightly different
message. If you see a Windows message stating ready to use, then proceed to the next step.
Otherwise, open the USB_Driver_Help_200.PDF
document in the Windows Start | Programs menu
to verify that the USB driver was installed successfully.
8) Verify that MAX9249 EV kit LED120 lights up,
indicating that the microcontroller is powered and
enabled.
9) Verify that MAX9260 EV kit LED120 lights up,
indicating that the microcontroller is powered and
enabled.
10) Verify that MAX9260 EV kit LED2 lights up, indicating that the link has been successfully established.
If LED2 is off or LED1 is on, double-check that the
PCLK_IN signal is clocking data.
11) Optional Audio Demo: Press and release switch
SW122 on both of the MAX9249 and MAX9260 EV
kits to enable this S/PDIF-to-I2S and I2S-to-audio
DAC demonstration circuitry. If I2S or S/PDIF audio
was provided to the MAX9249 EV kit, audio should
now be heard from the speakers or headphones
previously connected to the MAX9260 EV kit.
12) Start the MAX9249 EV kit software by opening its
icon in the Windows Start | Programs menu. The
EV kit software configuration window appears, as
shown in Figure 7.
13) Press the Connect button and the configuration
window 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
MAX9249 and MAX9260.
16) I2C Slave Device Demo: Make sure MAX9260 EV kit
jumpers JU151–JU154 are in the 1-2 position.
_______________________________________________________________________________________ 5
Evaluates: MAX9249
Quick Start
Evaluates: MAX9249
MAX9249 Evaluation Kit
17) In the software’s MAX7324 tab (Figure 4), press
the Search for MAX7324 button. Verify that the
MAX7324 Device Address drop-down list shows
0xDA (JU151=1-2 JU152=1-2).
and MAX9260 device addresses have been previously
changed from their factory power-on-reset values, the
new addresses must be specified in the Configuration
window to allow register access.
18) Press the LED151-LED158 ON button. Verify that
MAX9260 EV kit LED151–LED158 turn on.
The Baud Rate drop-down list sets the communications
baud rate. The USB link uses the same baud rate as the
MAX9249/MAX9260. Note that the baud rate should only
be changed one step at a time.
19) Press the LEDs Alternating button. Verify that
MAX9260 EV kit LED151, LED153, LED156, and
LED158 turn off.
20) GPIO Demo: In the software’s MAX9260 tab (Figure
3), scroll down to Register 0x06. Uncheck the
GPIO1OUT checkbox and press the Write button.
Verify that MAX9260 EV kit LED4 turns off.
21) Uncheck the GPIO0OUT checkbox and press the
Write button. Verify that MAX9260 EV kit LED3 turns off.
22) Check the GPIO1OUT checkbox and press the Write
button. Verify that MAX9260 EV kit LED4 turns on.
23) Check the GPIO0OUT checkbox and press the
Write button. Verify that MAX9260 EV kit LED3
turns on.
24) INT Demo: Toggle MAX9260 EV kit switch SW2 up.
Verify that MAX9249 EV kit LED1 turns on, indicating
that MAX9260 INT input is asserted.
25) In the software’s MAX9260 tab, scroll to
Register 0x06 and press the Read button. Verify
that the INT checkbox is checked, indicating that
MAX9260 INT input is asserted.
26) Toggle MAX9260 EV kit switch SW2 down. Verify
that MAX9249 EV kit LED1 turns off, indicating that
MAX9260 INT input is not asserted.
27) In the software’s MAX9260 tab, scroll to
Register 0x06 and press the Read button. Verify
that the INT checkbox is not checked, indicating
that MAX9260 INT input is not asserted.
Detailed Description of Software
The main window of the evaluation software (Figure
1) shows a block diagram representing the MAX9249/
MAX9260 system. The left column shows MAX9249 input
data sources, and the right column shows MAX9260
output data sinks.
The Change Configuration button (Figure 1) brings
up the Configuration window (Figure 7), allowing the
software GUI to select which side of the link the USB
cable should be plugged in to. Controlling from the
MAX9260 side requires changing some jumper settings as described in this window. If the MAX9249
The Read All button reads all of the MAX9249/MAX9260
device registers. The Reset to Default Values button
restores recommended factory settings, and the Write
All button writes all MAX9249 and MAX9260 device registers with the values shown in the GUI.
The MAX9249 tab sheet (Figure 2) provides direct
access to all registers of the MAX9249 and the MAX9260
tab sheet (Figure 3) provides direct access to all registers of the MAX9260. Each register has its own Read and
Write button. The small circle next to the Read button
turns yellow to indicate an attempt to read or write, red
to indicate a failed read or write, and green to indicate a
successful read or write operation.
The MAX7324 tab sheet (Figure 4) controls the I2C I/O
expander on the remote side of the link. When USB is
plugged into the MAX9249 EV kit, the MAX7324 tab
sheet controls the MAX7324 (U15) on the MAX9260
EV kit. Note that the MAX7324 actually has two device
addresses; for simplicity, the software GUI only displays
the device address associated with MAX7324 outputs.
For details, refer to the MAX7324 IC data sheet.
The PRBS Test tab sheet (Figure 5) uses the MAX9260
registers to perform a pseudorandom bit sequence (PRBS)
error-rate test. Select the test duration (maximum 32767s =
9.1hr) and press the Start button. The software GUI configures the MAX9260 to begin the PRBS test, counts down
the specified delay time, and then reports the final value of
the MAX9260 PRBSERR register.
The Interface History and Low Level Access tab
sheet (Figure 6) shows the recent low-level communications activity between the software GUI and the
MAX9249/MAX9260. The Register Access group box
provides arbitrary device read/write control, supporting additional user-supplied devices besides the onboard MAX9249, MAX9260, and MAX7324. The Device
Address, Register, and Data drop-down lists specify
the device address and the register within the device, as
well as one optional byte of data to be written. Pressing
the Write Register button writes one byte of data to
the specified device register. Read Register reads the
specified device register and reports the results into the
6 _______________________________________________________________________________________
MAX9249 Evaluation Kit
Detailed Description of Hardware
The MAX9249 EV kit provides a proven layout for
the MAX9249. On-board level translators, S/PDIF-toI2S audio, and an easy-to-use USB-PC connection are
included on the EV kit.
The MAX9249 EV kit board layout is divided into four
principal sections.
From header H3 to connector J1 are the support components specific to the MAX9249. On-board LDO regulator
U2 powers the AVDD, DVDD, and IOVDD supplies from
VIN. Jumper JU9 optionally connects VIN to the link
cable, powering the remote EV kit board.
Between headers H3 and H1, an Altera Cyclone III FPGA
(U500) converts parallel video signals from header H1
into LVDS video at header H3. Jumper JU500 powers the
FPGA’s regulators U520–U560 from the USB.
Below header H1, the board layout has three sections:
microcontroller (U10–U14), I2C slave device (U15), and
audio (U20–U25). The microcontroller and I2C slave
device sections are identical on the MAX9249 and
MAX9260 EV kits.
The audio section of the MAX9249 EV kit contains
S/PDIF-to-I2S audio converter circuits (U20–U25), which
can be disabled by JU210 for applications already having I2S audio.
The audio section of the MAX9260 EV kit contains I2Sto-audio DAC circuits (U20, U21) and a Class D stereo
power amplifier (U25). The audio DAC circuits are similar
to the MAX9850 EV kit, and the power amplifier circuit is
similar to the MAX9701 EV kit.
Evaluating LVDS Input Signals
If the available video source uses 7-bit LVDS output
format instead of parallel CMOS video, then adapt
the EV kit board as follows. With power off and the
USB unconnected, cut the five pairs of LVDS traces
between H3 and U500 and install a header at H3.
Disconnect the FPGA power from the USB by removing
the shunt from jumper JU500. Follow the Quick Start
procedures, except for step 5, and apply LVDS signals
at header H3. Refer to the MAX9249 IC data sheet for
LVDS specifications.
User-Supplied Interface
To use the MAX9249 EV kit with a user-supplied interface, first cut the PCB traces at jumpers JU141 and
JU142. Next, apply your own TX/SCL signal at the U1
side of JU141 and RX/SDA at the U1 side of JU142.
Refer to the MAX9249 and MAX9259/MAX9260 IC data
sheets for details about UART protocols for base mode,
write data format, read data format, selecting base
mode or bypass mode, and selecting UART or I2C slave
device.
User-Supplied Power Supply
The MAX9249 and MAX9260 EV kits are powered completely from the USB port by default. The 5V USB bus
power is supplied to the remote EV kit over the link cable
by default. Jumper JU10 powers the link cable (VBUS)
from the 5V USB supply, and jumper JU9 connects
VBUS to the VIN power supply.
To provide external power to each EV kit’s VIN, and still
power both microcontrollers from the USB, remove the
shunt from jumper JU9, but leave the shunt at jumper
JU10 installed. VBUS carries the USB 5V bus power to
the remote EV kit board, but external user-supplied VIN
supplies are required to power the MAX9249 and the
MAX9260.
To provide different power supplies to DVDD, AVDD, and
IOVDD, remove the shunts from jumpers JU21, JU22,
and JU23, and apply external user-supplied power at the
DVDD, AVDD, and IOVDD oval pads.
The I2S audio link demonstration requires both MAX9249
EV kit and MAX9260 EV kit microcontrollers (U12) to be
powered, otherwise the on-board S/PDIF-to-I2S converter or the I2S audio DAC does not initialize.
Detailed Description of Firmware
The DS89C450 microcontroller (U12) runs custom firmware, which ensures that no breaks occur within register read/write commands. The firmware records 9-bit,
even-parity data received from the USB interface while
RTS is set, and plays back the 9-bit data with 1.5 stop
bits timing when RTS is cleared. Data received from the
MAX9249 is relayed to the USB immediately.
The audio chips are initialized by an I2C command
sequence sent by the firmware when the microcontroller is reset. The same firmware runs on both the
MAX9249 and MAX9260 EV kit boards, so this initialization sequence covers both the S/PDIF-to-I2S converter
and the MAX9850 I2S stereo audio DAC. Pressing switch
SW122 resets the microcontroller, resending the audio
I2C initialization commands.
_______________________________________________________________________________________ 7
Evaluates: MAX9249
Interface History window. Devices that are not registerbased (such as the MAX7324) are supported by Send
Data (no register) and Receive Data (no register).
User-supplied devices requiring other interface protocols must use Raw TX byte codes to communicate.
Note that in bypass mode, raw data is passed to the
user-supplied slave device directly without modification.
Evaluates: MAX9249
MAX9249 Evaluation Kit
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
firmware commands are issued automatically by the
MAX9249 EV kit software GUI. The following information
is provided for reference only.
Firmware command “?” prints the firmware version banner message and a brief command list.
Firmware command “B” changes the baud rate by
changing the internal TH1 baud-rate divisor. Refer to
firmware help command “?” for details. Pressing switch
SW122 resets the USB baud rate to 921600 baud. The
software GUI automatically sends the baud-rate change
command.
Firmware command “T” supports waking up the MAX9249
from the MAX9260 side of the link. Command “T” performs a dummy read, followed by a delay on the order
of 1ms to 8ms, and finally writes a register value. For
example, send “T810558800483” to read from device
address 0x81 register 0x05, delay 4ms, then write to
device address 0x80 register 0x04 data 0x83. This is
the MAX9249 wake-up sequence for the default device
addresses. The software GUI automatically sends this
command when the Wake Up MAX9249 button is
pressed.
Table 1. Jumper Descriptions
JUMPER
JUCNTL0
JUCNTL1
JUCNTL2
JU1
SIGNAL
CNTL0
CNTL1
CNTL2
CDS
SHUNT POSITION
1-2
Open*
1-2
Open*
1-2
Open*
JU4
JU5
JU6
JU7
BWS
DRS
SSEN
PWDN
AUTOS
JU9
JU10
JU21
H1 odd pins
Bus power
Bus power
AVDD
CNTL1 = GND
CNTL1 = unconnected
CNTL2 = GND
CNTL2 = unconnected
CDS = high; optional peripheral attached to MAX9249
2-3*
CDS = low; ECU attached to MAX9249; connect USB to MAX9249 EV kit
Reserved
1-2*
BWS = high
2-3
BWS = low
1-2*
DRS = high
2-3
DRS = low
1-2*
SSEN = high
2-3
SSEN = low
1-2*
PWDN = high
2-3
PWDN = low
1-2*
AUTOS = high
2-3
AUTOS = low
H1 odd-numbered pins connect to GND through R13
Open*
JU8
CNTL0 = unconnected
1-2
Open
JU2
DESCRIPTION
CNTL0 = GND
1-2
H1 odd-numbered pins connect to IOVDD; R13 must be open
2-3
H1 odd-numbered pins connect to GND
1-2*
J1 pin 1 connects to VIN
2-3
J1 pin 1 connects to GND
Open
J1 pin 1 is not connected
1-2*
J1 pin 1 connects to USB 5V
Open
USB power is not connected to link cable power
1-2*
AVDD power from 1.8V LDO U2, powered by VIN
Open
AVDD must be provided from an external source
8 _______________________________________________________________________________________
MAX9249 Evaluation Kit
JUMPER
SIGNAL
JU22
DVDD
SHUNT POSITION
DESCRIPTION
1-2*
DVDD power from 1.8V LDO U2, powered by VIN
Open
DVDD must be provided from an external source
1-2*
IOVDD power from 1.8V LDO U2, powered by VIN
Open
IOVDD must be provided from an external source
JU23
IOVDD
JU31
LVDSVDD
JU121
Reserved
Not installed*
Reserved for factory diagnostic tests
JU141
TX/SCL
Not installed*
Connects U1 to U12 through level translator U14
JU142
RX/SDA
Not installed*
Connects U1 to U12 through level translator U14
JU143
LFLT
Not installed*
Connects U1 to USB through level translator U14
JU144
INT
Not installed*
Connects U1 to USB through level translator U14
JU151
U15 AD2
1-2*
Open
U15 AD0
Selects U15 I2C device address
2-3
Selects U15 I2C device address
U15 SDA
Selects U15 I2C device address
2-3
Selects U15 I2C device address
1-2*
Open
JU154
U15 SCL
1-2*
Open
JU191
AUDIO-SCL
JU192
AUDIO-SDA
JU193
AUDIO-SCL
JU194
AUDIO-SDA
JU210
U21 OE
JU211
I2S WS
JU212
I2S SCK
JU213
I2S SD
JU214
I2S MCLK
Reserved for factory diagnostic tests
1-2*
Open
JU153
LVDSSVDD must be powered from an external user-supplied source
1-2*
Open
JU152
LVDSSVDD is powered from 3.3V LDO U3, powered by VIN
1-2*
Open
1-2*
Open
1-2*
Open
1-2*
Open
1-2*
Open
Not installed*
Open
Not installed*
Open
Not installed*
Open
Not installed*
Open
Reserved for factory diagnostic tests
Connects U15 MAX7324 to I2C bus; MS must be low (SW1) and CDS
must be high (JU1 = 1-2 on both boards)
Disconnects U15 MAX7324 from I2C bus; MS may be high (SW1)
Connects U15 MAX7324 to I2C bus; MS must be low (SW1) and CDS
must be high (JU1 = 1-2 on both boards)
Disconnects U15 MAX7324 from I2C bus; MS may be high (SW1)
U12 sends I2C initialization commands to audio chip U20
Disconnects audio I2C bus pullup resistor
U12 sends I2C initialization commands to audio chip U20
Disconnects audio I2C bus
U12 sends I2C initialization commands to audio chip U20
Disconnects audio I2C bus pullup resistor
U12 sends I2C initialization commands to audio chip U20
Disconnects audio I2C bus
J21 S/PDIF input drives I2S audio to H1 and U1
External user-supplied I2S can be connected to H1
J21 S/PDIF input drives I2S audio to H1 and U1
Disconnects I2S signals
J21 S/PDIF input drives I2S audio to H1 and U1
Disconnects I2S signals
J21 S/PDIF input drives I2S audio to H1 and U1
Disconnects I2S signals
J21 S/PDIF input drives I2S audio to H1 and U1
Disconnects I2S master clock
_______________________________________________________________________________________ 9
Evaluates: MAX9249
Table 1. Jumper Descriptions (continued)
Evaluates: MAX9249
MAX9249 Evaluation Kit
Table 1. Jumper Descriptions (continued)
JUMPER
SIGNAL
JU261
VMOD
SHUNT POSITION
1-2*
Open
1-2*
DESCRIPTION
VMOD audio power from +3.3V LDO U26, powered by VIN
VMOD audio power must be provided from an external +3.3V source
VCC5 power from USB+5V
JU500
FPGA
JU501
FPGA
1-2*
Reserved
JU502
FPGA
Open*
Reserved
JU503
FPGA
Open*
Reserved
JU520
JU530
FPGA
FPGA
JU540
FPGA
JU550
FPGA
JU560
FPGA
SW1
MS
Open
1-2*
Open
1-2*
VCC5 power must be provided from an external source
VCC33 power from 3.3V regulator U520, powered by VCC5
VCC33 must be provided from an external source
VCC25 power from 2.5V regulator U530, powered by VCC5
Open
VCC25 must be provided from an external source
1-2 *
VCC12 power from 1.2V regulator U540, powered by VCC5
Open
VCC12 must be provided from an external source
1-2*
Open
1-2*
Open
VCC18 power from 1.8V regulator U550, powered by VCC5
VCC18 must be provided from an external source
VCC125 power from 1.25V regulator U560, powered by VCC18
VCC125 must be provided from an external source
1-2
MS = high; full-duplex bypass mode; device registers not accessible
2-3*
MS = low; half-duplex base mode; required when writing to device registers or when using external I2C peripheral
*Default position.
10
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MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 1. MAX9249/MAX9260 EV Kit Software Main Window (Block Diagram Tab)
______________________________________________________________________________________ 11
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 2. MAX9249/MAX9260 EV Kit Software Main Window (MAX9249 Tab)
12
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MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 3. MAX9249/MAX9260 EV Kit Software Main Window (MAX9260 Tab)
______________________________________________________________________________________ 13
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 4. MAX9249/MAX9260 EV Kit Software Main Window (MAX7324 Tab)
14
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MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 5. MAX9249/MAX9260 EV Kit Software Main Window (PRBS Test Tab)
______________________________________________________________________________________ 15
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 6. MAX9249/MAX9260 EV Kit Software Main Window (Interface History and Low Level Access Tab)
16
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MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 7. MAX9249/MAX9260 EV Kit Software Configuration Window
______________________________________________________________________________________ 17
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 8a. MAX9249 EV Kit Schematic (Sheet 1 of 11)
18
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MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 8b. MAX9249 EV Kit Schematic (Sheet 2 of 11)
______________________________________________________________________________________ 19
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 8c. MAX9249 EV Kit Schematic (Sheet 3 of 11)
20
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 8d. MAX9249 EV Kit Schematic (Sheet 4 of 11)
______________________________________________________________________________________ 21
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 8e. MAX9249 EV Kit Schematic (Sheet 5 of 11)
22
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MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 8f. MAX9249 EV Kit Schematic (Sheet 6 of 11)
______________________________________________________________________________________ 23
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 8g. MAX9249 EV Kit Schematic (Sheet 7 of 11)
24
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 8h. MAX9249 EV Kit Schematic (Sheet 8 of 11)
______________________________________________________________________________________ 25
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 8i. MAX9249 EV Kit Schematic (Sheet 9 of 11)
26
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
Figure 8j. MAX9249 EV Kit Schematic (Sheet 10 of 11)
______________________________________________________________________________________ 27
Evaluates: MAX9249
MAX9249 Evaluation Kit
Figure 8k. MAX9249 EV Kit Schematic (Sheet 11 of 11)
28
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
1.0”
Figure 9. MAX9249 EV Kit Component Placement Guide—Component Side
______________________________________________________________________________________ 29
Evaluates: MAX9249
MAX9249 Evaluation Kit
1.0”
Figure 10. MAX9249 EV Kit PCB Layout—Component Side
30
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
1.0”
Figure 11. MAX9249 EV Kit PCB Layout—Ground Layer 2
______________________________________________________________________________________ 31
Evaluates: MAX9249
MAX9249 Evaluation Kit
1.0”
Figure 12. MAX9249 EV Kit PCB Layout—Signal Layer 3
32
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
1.0”
Figure 13. MAX9249 EV Kit PCB Layout—Power Layer 4
______________________________________________________________________________________ 33
Evaluates: MAX9249
MAX9249 Evaluation Kit
1.0”
Figure 14. MAX9249 EV Kit PCB Layout—Power Layer 5
34
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
1.0”
Figure 15. MAX9249 EV Kit PCB Layout—Power Layer 6
______________________________________________________________________________________ 35
Evaluates: MAX9249
MAX9249 Evaluation Kit
1.0”
Figure 16. MAX9249 EV Kit PCB Layout—Ground Layer 7
36
�������������������������������������������������������������������������������������
MAX9249 Evaluation Kit
Evaluates: MAX9249
1.0”
Figure 17. MAX9249 EV Kit PCB Layout—Solder Side
______________________________________________________________________________________ 37
Evaluates: MAX9249
MAX9249 Evaluation Kit
1.0”
Figure 18. MAX9249 EV Kit Component Placement Guide—Solder Side
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time.
38
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