General Description
The MAX1366 evaluation kit (EV kit) is a fully assembled
and tested PCB that demonstrates the capabilities of
the MAX1366 4.5-digit panel meter with 4–20mA output.
The MAX1366 EV kit also includes Windows®98SE/
2000/XP-compatible software that provides a simple
graphical user interface (GUI) for exercising the fea-
tures of the MAX1366.
The MAX1366 evaluation system (EV system) consists of
the MAX1366 EV kit and a companion CMAXQUSB serial-
interface board. The CMAXQUSB interface board allows
a PC to control an SPI™ interface using its USB port.
Order the MAX1366 EV system for a complete PC-based
evaluation of the MAX1366. Order the MAX1366 EV kit if
you already have a MAX1366-compatible serial interface.
The MAX1366 EV kit also supports the MAX1365/
MAX1367/MAX1368.
Features
♦On-Board 5-Digit LED Display
♦User-Friendly, Digital Meter Emulation Software
♦Proven PCB Layout
♦Windows 98SE/2000/XP-Compatible Evaluation
Software
♦Convenient Configuration Jumpers and Test
Points
♦EV System Includes USB Connectivity
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
________________________________________________________________
Maxim Integrated Products
1
19-0685; Rev 0; 11/06
Component List
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
Windows is a registered trademark of Microsoft Corp.
SPI is a trademark of Motorola, Inc.
PART NUMBER TYPE INTERFACE
MAX1366EVKIT EV kit User-supplied SPI
interface
MAX1366EVCMAXQU EV system CMAXQUSB
interface board
Note: The MAX1366 EV kit software is included with the
MAX1366 EV kit, but is designed for use with the complete EV
system. The EV system includes both the Maxim CMAXQUSB
interface board and the EV kit. If the Windows software will not
be used, the EV kit board can be purchased without the Maxim
CMAXQUSB board.
MAX1366 EV Kit
DESIGNATION QTY DESCRIPTION
C1–C4, C6, C7,
C9–C13, C19,
C20, C22,
C23, C24
16
0.1µF ±10%, 10V X5R ceramic
capacitors (0402)
Murata GRM155R61A104K
TDK C1005X5R1A104K
C5, C14–C18,
C21 7
4.7µF ±20%, 10V X5R ceramic
capacitors (0805)
TDK C2012X5R1A475M
C8 1
1.0µF ±10%, 50V X7R ceramic
capacitor (1206)
Murata GRM31MR71H105KA
TDK C3216X7R1H105K
D0–D4 5
Super-red 7-segment common
cathode LEDs
Lite-On LTS-4301JR
FB1 1 Ferrite bead (0603)
TDK MMZ1608R301A
J1 1
6-position terminal block
Phoenix Contact 1725698
(or equivalent)
DESIGNATION QTY DESCRIPTION
J2 1
2 x 20 right-angle female receptacle
Samtec SSW-120-02-S-D-RA
(or equivalent)
JU1 0 Not installed, shorted by PCB trace
JU2 1 3-way pin header
JU3–JU7,
JU9–JU15 12 2-pin headers
JU8 1 Single-line 3-pin header
Q1 1 N-channel depletion-mode MOSFET
Q2 0 Not installed, dual n-channel
enhancement MOSFET
R1 1 100Ω ±1% resistor (0402)
R2, R3 2 47kΩ ± 5%, ar r ay of 8 b ussed r esi stor s
CTS 745C101473JTR
R4 1 24kΩ ±5% resistor (0402)
R5 1 51kΩ ±5% resistor (0402)
R6 1 100kΩ ±5% resistor (0402)
R7 1 510kΩ ±5% resistor (0402)
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
2 _______________________________________________________________________________________
Quick Start
Recommended Equipment
• 3.3V to 5VDC, 200mA power supply for LED driver
• 7V to 30VDC, 50mA power supply for current loop
• 4.75V to 5.25V power supply
• Voltage signal source with output between 0 to ±2V
• Digital current meter
• MAX1366 EV system
MAX1366 EV kit
Maxim CMAXQUSB interface board
(USB cable included)
• A user-supplied Windows 98SE/2000/XP PC with a
spare USB port
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 98SE/
2000/XP operating system.
Procedure
The MAX1366 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all con-
nections are completed.
1) Visit the Maxim website (www.maxim-ic.com/evkit-
software) to download the most recent version of
the EV kit software, 1366Rxx.ZIP.
2) Install the MAX1366 evaluation software on your
computer by running the INSTALL.EXE program.
The program files are copied and icons are created
in the Windows Start menu.
3) On the CMAXQUSB board, ensure the shunt of JU1
is in the 3.3V or 5V position.
4) For the MAX1366 EV kit, make sure the jumpers and
switches are in their default positions (Table 1).
5) Carefully connect the boards by aligning the
MAX1366 EV kit’s 40-pin connector with the 40-pin
connector of the CMAXQUSB board.
6) Connect the 3.3V to 5VDC power supply on the
MAX1366 EV kit’s VLED pad and LEDG to ground.
7) Connect the 7V to 30VDC power-supply positive
terminal to the MAX1366 EV kit’s terminal block J1
position 2. Connect the 7V to 30VDC power-supply
ground terminal to the J1 position 6.
8) Connect 4.75V to 5.25V power supply to terminal
block J1, position 3.
Component Suppliers
SUPPLIER PHONE WEBSITE
Murata 770-436-1300 www.murata.com
TDK 847-803-6100 www.component.tdk.com
Component List
MAX1366 EV Kit (continued)
DESIGNATION QTY DESCRIPTION
R8 1 30.9kΩ ±1% resistor (0402)
R9 1 100kΩ ±1% resistor (0402)
R10 0 Not installed, 51Ω ±1% resistor
(0402)
SW1 1
8-position DIP switch, top-slide
surface mount
CTS 219-8MST
SW2 1
10-position DIP switch, top-slide
surface mount
CTS 219-10MST
TP1–TP5 0 Test points, not installed
U1 1
MAX1366ECM (48 TQFP)
4.5-digit single-chip ADC with LED
driver
U2 1
MAX6126A21+ (8 µMAX®)
High-precision, low-noise reference
generator
— 14 Shunts
— 1 MAX1366 EV kit blank PCB
µMAX is a registered trademark of Maxim Integrated Products, Inc.
+
Indicates lead-free package.
Note: Indicate that you are using the MAX1366 when contacting
these component suppliers.
MAX1366 EV Kit Files
FILE DESCRIPTION
INSTALL.EXE Installs the EV kit files on
your computer
MAX1366.EXE Application program
FTD2XX.INF USB device driver file
UNINST.INI Uninstalls the EV kit
software
TROUBLESHOOTING_USB.PDF USB driver installation
help file
MAX1366 EV System
PART QTY DESCRIPTION
MAX1366EVKIT 1 MAX1366 EV kit
CMAXQUSB 1 Serial-interface board
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
_______________________________________________________________________________________ 3
9) Adjust the voltage source output to 1.024V.
Connect the positive terminal to the MAX1366 EV
kit’s AIN+ pad. Connect the negative terminal to the
MAX1366 EV kit’s AIN- pad.
10) Connect the digital current meter positive terminal
to the J1 position 5 and negative terminal to the
AGND pad. Switch the meter to the DC milliamp
range.
11) Connect the USB cable from the PC to the CMAX-
QUSB board. Turn on all three power supplies and
the signal source. If you have previously installed
the CMAXQUSB device driver on this computer, go
to step 14.
12) A Building Driver Database window pops up in
addition to a New Hardware Found message. If
you don’t see a window that is similar to the one
described above after 30 seconds, remove the USB
cable from the CMAXQUSB and reconnect it.
Administrator privileges are required to install the
USB device driver on Windows 2000/XP. Refer to
the TROUBLESHOOTING_USB.PDF document
included with the software if you are experiencing
problems.
13) Follow the directions of the Add New Hardware
Wizard to install the USB device driver. Choose the
Search for the Best Driver for your Device option.
Specify the location of the device driver to be
C:\Program Files\MAX1366 (default installation
directory) using the Browse button.
14) Start the MAX1366 EV kit software by opening its
icon in the Start menu. The GUI window appears,
as shown in Figure 1.
15) Switch to the Voltage Measurement tab, as shown
in Figure 2. Wait one second or click the Collect
Sample button. Verify the following readings:
a) LED display on the EV kit should be approxi-
mately 10240.
b) Result Registers 1 & 2 Code reading on the
GUI should be approximately +10240.0000.
c) Voltage (mV) reading should be approximately
+1024.000000.
16) Fine-tune the voltage-signal source output within
±2V and verify that the LED display follows the
adjustment. Verify that the readings on the software
window follow the adjustment as well.
Table 1. MAX1366 EV Kit Jumper and Switch Positions
JUMPER PINS DESCRIPTION
1-2* (shorted by PCB) V/I converter input follows DAC output
JU1 Cut open V/I converter input follows an external voltage signal (Note 1)
1-3* Evaluate MAX1366/MAX1368 microcontroller-interfaced LED drivers
1-2 Evaluate MAX1365/MAX1367 stand-alone LED drivers, decimal point ONJU2
1-4 Evaluate MAX1365/MAX1367 stand-alone LED drivers, decimal point OFF
Open* 4–20mA current output does not flow into the on-board resistor R1
JU3 1-2 4–20mA current output flows into the on-board 100Ω resistor (Note 2)
1-2* DAC_VDD connected to AVDD
JU4 Open DAC_VDD connected to an external power supply
1-2* DVDD connected to the CMAXQUSB interface-board power supply
JU5 Open DVDD connected to an external power supply
1-2* AVDD connected to DVDD
JU6 Open AVDD connected to an external power supply
Open* Evaluate MAX1366/MAX1368 microcontroller-interfaced LED drivers
JU7 1-2 Evaluate MAX1365/MAX1367 stand-alone LED drivers
2-1* 4–20mA current output drives an external load
JU8 2-3 4–20mA current output drives the on-board current mirror (Note 3)
1-2* Use the on-board MAX6126 voltage source as ADC reference
JU9, JU11,
JU13, JU15 Open Use the internal 2.048V voltage source as ADC reference
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
4 _______________________________________________________________________________________
Detailed Description of Software
To start the MAX1366 EV kit software, double-click the
MAX1366 EV kit icon created during installation. The
GUI window appears, as shown in Figure 1. Wait
approximately two seconds while the MAX1366 EV kit
software connects to the CMAXQUSB board.
On the lower half of the software window, the user can
monitor the activity details of the SPI interface if one
single SPI transaction is executed. If more than one SPI
read or write commands are sent, only the last transac-
tion details are displayed on the GUI window.
Table 1. MAX1366 EV Kit Jumper and Switch Positions (continued)
JUMPER PINS DESCRIPTION
1-2* Use the on-board MAX6126 voltage source as DAC reference
JU10, JU12,
JU14 Open Use the internal 2.048V voltage source as DAC reference
SW1 Switch 5 ON, other
switches OFF
Switches 5, 6, 7, and 8 set the LED current. Default current is set to 20mA (refer to the
MAX1366 data sheet for current settings).
SW2 All switches OFF Evaluate MAX1366/MAX1368 microcontroller-interfaced LED drivers (see Table 2 for
evaluating other devices)
*
Default position.
Note 1: The MAX1366/MAX1368 expects a 6.2k
Ω
(typ) source impedance from the voltage source driving CONV_IN (normally driven
by the on-chip DAC).
Note 2: The purpose of R1 is only for quick voltage measurement. The R1 tolerance determines the current-to-voltage transfer function.
Note 3: The current output accuracy of the device is maintained over the range of 0V to 2.5V. To interface with a high-loop voltage,
such as 7V to 30V, a user may use the current output to drive an external current mirror. The external current mirror may significantly
degrade 4–20mA current-output offset, gain, and associated temperature coefficients. See Detailed Description of Hardware section
for details.
Figure 1. MAX1366 Evaluation Software—Control Register Tab
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
_______________________________________________________________________________________ 5
Figure 2. MAX1366 Evaluation Software—Voltage Measurement Tab
There are seven tab pages on the software window.
These pages let the user configure and test different
features of the MAX1366. They are the Control
Register, Voltage Measurement, Results, Display,
Limits, LED Segments, DAC, Current Output,
Register Watch, and Math tabs.
Control Register
The Control Register tab shown in Figure 1 contains
the primary control register for the MAX1366. Set or
clear any bit in this register by choosing the appropri-
ate dropdown menu.
Voltage Measurement
The Voltage Measurement tab shown in Figure 2 mim-
ics the behavior of a digital voltmeter (DVM). The status
bits are checked and displayed every time a sample is
collected, either by manually clicking the Collect Sample
button, or automatically by the software if the Auto
Collect checkbox is enabled. The Result Registers 1 &
2 Code displays the 20-bit result register (combination of
result register 1 and result register 2 in two’s complement
code) in decimal format. The Voltage (mV) displays the
calculated input voltage based on the result-register
values and the value entered into EXT REF Voltage(V)
field. Compare the voltage source reading against the
LED reading to check the conversion accuracy.
The EV kit is a ±2V range DVM, outside this range input-
scaling and protection circuitry is recommended.
Whenever the Voltage Measurement tab is activated,
the software clears the SPI/ADC and SEG_SEL control
bits to zero if they are not already cleared.
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
6 _______________________________________________________________________________________
Figure 3. MAX1366 Evaluation Software—Results, Display, Limits Tab
Results, Display, Limits
The Results, Display, Limits tab shown in Figure 3
provides access to the two’s complement data regis-
ters. Each register has Read and Write buttons, except
for ADC RESULT 1, ADC RESULT 2, and PEAK
RESULT, which are read-only. The reading or writing to
the LED DATA register depends on the setting of the
SPI/ADC bit.
All the fields are shown in both decimal and hexadeci-
mal formats. Whenever a writable field is changed, the
font color is changed to red. This reminds the user that
the new data has not been written to the device.
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
_______________________________________________________________________________________ 7
LED Segments
The LED Segments tab shown in Figure 4 lets the user
turn individual LED segments on and off by clicking
them with the mouse. Whenever the LED Segments
tab is activated, the software sets the SEG_SEL control
bit to one if it is not already set.
The user can read all the LED register values by clicking
the appropriate buttons (Read LED Segment Reg 1,
Read LED Segment Reg 2, Read LED Segment Reg 3,
or Read all). The user can also set all segments on by
clicking the All Segments On button and set all seg-
ments off by clicking the All Segments Off button.
Figure 4. MAX1366 Evaluation Software—LED Segments Tab
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
8 _______________________________________________________________________________________
DAC, Current Output
The DAC, Current Output tab shown in Figure 5 lets
the user configure the DAC and V/I converter. After
selecting one output mode, the user can check the
ideal output current by clicking the Ideal Output
Current button. This checks the accuracy of the output
by comparing the ideal output reading on the GUI and
the reading on the current meter.
When selecting the DAC input to follow the DAC regis-
ter value, the user should click the Write button to write
the new typed value to the device.
Figure 5. MAX1366 Evaluation Software—DAC, Current Output Tab
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
_______________________________________________________________________________________ 9
Register Watch
The Register Watch tab shown in Figure 6 contains all
of the twelve registers of the MAX1366. The user can
directly read all the current values of the registers.
Figure 6. MAX1366 Evaluation Software—Register Watch Tab
Evaluate: MAX1365–MAX1368
Math
The Math tab shown in Figure 7 implements several
math functions found in physical systems. Whenever
the Math tab is activated, the software sets the
SPI/ADC control bit to 1 if it is not already set. The soft-
ware also clears the SEG_SEL control bit to zero if it is
not already cleared.
The evaluation software intercepts the ADC result and
displays it on the ADC Result Code panel. This is the
same as on the Voltage Measurement tab page. It then
calculates a new value without considering the digits
limit of the LED display and displays it on the
Calculated Result panel. Finally, the software shows the
calculated result on the LED with the closest approxima-
tion and automatically sets the decimal-point position.
The Type K Thermocouple function can be used along
with a suitable cold-junction connection to convert a type
K thermocouple’s measured Seebeck voltage into tem-
perature in degrees centigrade. The a0 coefficient 23
represents a cold-junction temperature of 23°C (the
output depends on the sensitivity of the thermocouple).
MAX1366 Evaluation Kit/Evaluation System
10 ______________________________________________________________________________________
Figure 7. MAX1366 Evaluation Software—Math Tab
Detailed Description of Hardware
The MAX1366 (U1) is a low-power, 4.5-digit ADC with
integrated LED drivers and 4–20mA output. The
MAX6126 (U2) provides an on-board +2.048V refer-
ence voltage. See Figure 9 and refer to the MAX1366
data sheet for more information.
Evaluating the
MAX1365/MAX1367/MAX1368
The MAX1366 EV kit supports the MAX1368 3.5-digit
panel meter with LED drivers and 4–20mA output. All
the features can be tested using the same software.
The MAX1366 EV kit also supports the MAX1365/
MAX1367 stand-alone digital panel meters with LED
drivers. However, the evaluation software is not needed
because there is no microprocessor interface on the
MAX1365/MAX1367, but the stand-alone devices can
be evaluated by configuring the on-board SW1 and
SW2 DIP switches.
See Tables 1 and 2 for detailed configuration of
jumpers and DIP switches for evaluating the MAX1365,
MAX1367, and MAX1368.
Request a free sample of the MAX1365, MAX1367, or
MAX1368 to test their features.
Power Supplies
The DVDD, AVDD, and DAC_VDD can use the power
supply from the interface board for simple connection.
Selections are 3.3V and 5V. For other valid supply volt-
ages, the user can apply power supplies on the DVDD,
AVDD, and DAC_VDD pads, respectively.
Regulator/reference buffer power should be connected
through J1, position 3. The input range is 4.75V to
5.25V.
Current-loop power should be connected through ter-
minal block J1 position 2. The input range is 7V to 30V.
LED power supply should be connected on VLED and
LEDG pads (see the IC data sheet for absolute maxi-
mum ratings).
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
______________________________________________________________________________________ 11
Table 2. DIP Switch SW2 Settings for Evaluating MAX1365/MAX1367
SW2 POSITION FUNCTION DESCRIPTION
OFF (V/I converter bipolar mode enabled)
1 EN_BPM ON (V/I converter bipolar mode disabled)
OFF (V/I converter 4mA offset enabled)
2 EN_I ON (V/I converter 4mA offset disabled)
OFF (DAC uses internal reference)
3 REFSELE ON (DAC uses external reference)
OFF (ADC uses internal reference)
4 INTREF ON (ADC uses external reference)
OFF ( AD C i np ut vol tag e r ang e i s ± 2V )
5 RANGE ON (ADC input voltage range is ±200mV)
OFF (display the ADC peak value on the LED)
6 PEAK ON (PEAK function disabled)
OFF (Hold the current ADC value on the LED)
7HOLD
ON (HOLD function disabled)
OFF (see IC data sheet for decimal point control table)
8 DPSET2 ON (see IC data sheet for decimal point control table)
OFF (see IC data sheet for decimal point control table)
9 DPSET1 ON (see IC data sheet for decimal point control table)
OFF (LED enabled)
10 LED_EN ON (LED disabled)
Evaluate: MAX1365–MAX1368
4–20mA Output
The MAX1366 EV kit features a 4–20mA current output
for driving remote panel meters, data loggers, and
process controllers in industrial applications. The
MAX1366 DAC_VOUT pin is connected directly to the
CONV_IN pin to have the current output (4–20mA or 0
to 16mA) follow the analog inputs.
The board offers a choice to use the current output as
either a current source or a current sink. See Figure 8
for a simple current mirror. If used as a current source,
JU8 pins 1-2 should be connected. If used as a current
sink, JU8 pins 2-3 should be connected.
The current-output accuracy of the device is main-
tained over the range of 0V to 2.5V. The external cur-
rent mirror may significantly degrade 4–20mA current
output offset, gain, and associated temperature coeffi-
cients. The user is responsible for constructing a more
precise current mirror if high accuracy of the device is
to be maintained. The on-board current mirror is shown
for demonstration purpose only.
MAX1366 Evaluation Kit/Evaluation System
12 ______________________________________________________________________________________
4-20 SOURCE
4-20OUT
4-20 SINK
4-20OUT
N
R10
N
RLOAD
RLOAD
Figure 8. Current Source vs. Current Sink Output
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
______________________________________________________________________________________ 13
MAX1366
U1
CS_DAC 22
45
C23
0.1μF
NEGV GND
CS_DAC
DACDATA_SEL 21 DACDATA_SEL
SEGA
REF-
35
SEGA
C24
0.1μF
SEGB
36
SEGB
SEGC
38
SEGC
SEGD
39
SEGD
SEGE
40
SEGE
SEGF
41
SEGF
SEGG
42
SEGG
SEGDP
43
SEGDP
DIG0
30
DIG0
DIG1
31
DIG1
DIG2
32
DIG2
DIG3
33
DIG3
DIG4
34
DIG4
13
CONV_IN
REF_DAC
1
4
3
2
JU2
R8
30.9kΩ
1%
R9
100kΩ
1%
C19
0.1μF
ON
17 REF_DAC
REFSELE 20 REFSELE
EN_I 19 EN_I
EN_BPM 18 EN_BPM
CLK 23 CLK
EOC 24 EOC
DOUT 26 DOUT
SCLK 25 SCLK
DIN 27 DIN
CS 28 CS
46 LOWBATT
SET 6
1
2
3
SET
8
COMMON
DIG3
3
COMMON
JU15
C5
4.7μFC4
0.1μF
C3
0.1μF
47 REF-
DVDD
JU7
DVDD
DVDD
JU5
TP3
48 REF+
REF-
REF+
DGND
EXT_CLK
REF-
REF+
C2
0.1μF
C1
0.1μF
2AIN-
1AIN+
14 4-20OUT
AIN-
AIN+
3
GND_V/I
16
REG_AMP
9
TP1
DAC_VDD
DAC_VDD
11
JU6
LED_EN
LED_EN
44
LEDV
37
AVDD
4
DVDD
5
GND_DAC
15
LEDG
LEDG
AVDD
JU11
I.C.
29
MAX6126
U2
2IN
1NR
C6
0.1μF
JU12
6
OUTS
7
OUTF
3
GND
4
5
GNDS
C7
0.1μFI.C.
8
REF_DAC
JU10
REF+
JU9
REF_DAC
JU14
REF+
JU13
JU1 (PCB TRACE SHORT)
TP4
TP5 VLOOP C8
1.0μF
12
DACVOUT
10
C22
0.1μF
C21
4.7μF
CMP
8
7
Q1
REG_FORCE
REG_VDD
REG_VDD
DVDD
C18
4.7μF
J1-3J1-4 J1-5
C13
0.1μF
AVDD
VLED
C14
4.7μF
VLED
C20
0.1μF
JU3
Q2-A
OPEN
R10
OPEN
Q2-B
OPEN
13
56 87
3
2JU8
1
24
R1
100Ω
1%
TP2
J2
J2-19
J2-17
J2-15
J2-13
J2-11
J2-20
J2-18
J2-16
J2-14
J2-12
J2-9
J2-7
J2-5
J2-3
J2-1
J2-10
J2-8
J2-6
J2-4
J2-2
J2-39
J2-37
J2-35
J2-33
J2-31
J2-40
J2-38
J2-36
J2-34
J2-32
J2-29
J2-27
J2-25
J2-23
J2-21
J2-30
J2-28
J2-26
J2-24
J2-22
SCLK
DOUT
EOC
DACDATA_SEL
EN_I
CS_DAC
REFSELE
EN_BPM
CS
DIN
LED_EN
J1-1J1-6J1-2
VLOOP REG_VDD
J1 LEDG
LEDG
C9
0.1μF
VLED C15
4.7μF
AVDD AGND
C10
0.1μF
FB1
AVDD C16
4.7μF
DVDD DGND
C11
0.1μF
DVDD C17
4.7μF
DAC_VDD AGND
D3
LEDLST-4301JR
C12
0.1μF
AVDD DAC_VDD
JU4
SEGC 7C
SEGB 9B
SEGA 10 A
SEGF 2F
SEGE 4E
SEGDP 6DP
SEGG 1G
SEGD 5D
8
COMMON
DIG2
3
COMMON
D2
LEDLST-4301JR
SEGC 7C
SEGB 9B
SEGA 10 A
SEGF 2F
SEGE 4E
SEGDP 6DP
SEGG 1G
SEGD 5D
8
COMMON
DIG4
3
COMMON
D4
LEDLST-4301JR
SEGC 7C
SEGB 9B
10 A
2F
4E
SEGDP 6DP
SEGG 1G
5D
8
COMMON
DIG1
3
COMMON
D1
LEDLST-4301JR
SEGC 7C
SEGB 9B
SEGA 10 A
SEGF 2F
SEGE 4E
SEGDP 6DP
SEGG 1G
SEGD 5D
8
COMMON
DIG0
3
COMMON
D0
LEDLST-4301JR
SEGC 7C
SEGB 9B
SEGA 10 A
SEGF 2F
SEGE 4E
SEGDP 6DP
SEGG 1G
SEGD 5D
1
1
2
3
4
5
6
7
8
9
10
20
19
10
5
18
17
16
15
14
13
12
11
2
3
4
6
7
8
9
110
5
2
3
4
6
7
8
9
R3
47kΩ
EN_BPM
EN_I
REFSELE
CLK
SCLK
DACDATA_SEL
CLK
EOC
CS
CS_DAC
DOUT
DIN
LED_EN
R2
47kΩ
SW2
ON
1
2
3
4
5
R5
51kΩ
R6
100kΩ
R7
510kΩ
6
7
8
16
15
14
13
12
SET
11
10
9
SW1
LEDG
R4
24kΩ
Figure 9. MAX1366 EV Kit Schematic
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
14 ______________________________________________________________________________________
Figure 10. MAX1366 EV Kit Component Placement Guide—Component Side
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
______________________________________________________________________________________ 15
Figure 11. MAX1366 EV Kit PCB Layout—Component 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.
16
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2006 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Evaluate: MAX1365–MAX1368
MAX1366 Evaluation Kit/Evaluation System
Figure 12. MAX1366 EV Kit PCB Layout—Solder Side
