19-3743; Rev 0; 6/05
MAX19700 Evaluation Kit/Evaluation System
General Description
The MAX19700 evaluation system (EV system) consists
of a MAX19700 evaluation kit (EV kit), a companion
Maxim command module (CMOD232) interface board,
and software. Order the complete EV system
(MAX19700EVCMOD2) for comprehensive evaluation of
the MAX19700 using a personal computer. Order the
EV kit (MAX19700EVKIT) if the command module has
already been purchased with a previous Maxim EV sys-
tem, or for custom use in other microcontroller-based
(µC) systems.
The MAX19700 EV kit is a fully assembled and tested
circuit board that contains all the components neces-
sary to evaluate the performance of the MAX19700 ana-
log front-end (AFE). The MAX19700 integrates a dual
receive analog-to-digital converter (Rx ADC), a dual
transmit digital-to-analog converter (Tx DAC), a 1.024V
internal voltage reference, and three low-speed serial
DACs. The EV kit board accepts AC- or DC-coupled,
differential or single-ended analog inputs for the Rx
ADC and includes circuitry that converts the Tx DAC
differential output signals to single-ended analog out-
puts. The EV kit includes circuitry that generates a
clock signal from an AC sine-wave input signal. The EV
kit operates from a +3.0V analog power supply, a
+1.8V digital power supply, a +3.0V clock power sup-
ply, and ±5V bipolar power supplies.
The Maxim command module interface board
(CMOD232) allows a PC to use its serial port to emulate
an SPI™ 3-wire interface. Windows 98/2000/XP
®
-com-
patible software, which can be downloaded from
www.maxim-ic.com, provides a user-friendly interface
to exercise the features of the MAX19700. The program
is menu driven and offers a graphical user interface
(GUI) with control buttons and a status display.
o
Low-Voltage and Power Operation
o
Adjustable Gain Low-Speed DAC Buffers
o
On-Board Clock-Shaping Circuitry
o
On-Board Level-Translating I/O Drivers
o
Assembled and Tested
o
Include Windows 98/2000/XP-Compatible
Software
Features
o
ADC/DAC Sampling Rate Up to 7.5Msps
Evaluate: MAX19700
Ordering Information
PART
TEMP
RANGE
0°C to
+70°C
0°C to
+70°C
IC
PACKAGE
48 TQFN
48 TQFN
SPI
INTERFACE
TYPE
Not included
CMOD232
MAX19700EVKIT
MAX19700EVCMOD2
Note:
The MAX19700 EV kit software is provided with the
MAX19700EVKIT; however, the CMOD232 board is required to
interface the EV kit to the computer when using the included
software.
MAX19700 EV Kit Files
PROGRAM
INSTALL.EXE
MAX19700.EXE
HELPFILE.HTM
UNINST.INI
DESCRIPTION
Installs the EV kit software
Application program
MAX19700 EV kit help file
Uninstalls the EV kit software
SPI is a trademark of Motorola, Inc.
Windows is a registered trademark of Microsoft Corp.
________________________________________________________________
Maxim Integrated Products
1
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.
MAX19700 Evaluation Kit/Evaluation System
Evaluate: MAX19700
Component List
DESIGNATION QTY
DESCRIPTION
C1–C6, C17,
C21, C23, C25,
C28, C29,
0.1µF ±20%, 10V X5R ceramic
C37–C40,
29 capacitors (0402)
C45–C48,
TDK C1005X5R1A104M
C73–C76, C78,
C80, C81, C84,
C85
C7–C10
C11, C31–C36
C12
C13, C14, C82
4
0
0
3
22pF ±5%, 50V C0G ceramic
capacitors (0402)
TDK C1005C0G1H220J
Not installed (0402)
Not installed (0603)
1000pF ±5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H102J
0.47µF ±10%, 10V X5R ceramic
capacitors (0603)
TDK C1608X5R1A474K
1.0µF ±20%, 6.3V X5R ceramic
capacitors (0402)
TDK C1005X5R0J105M
0.1µF ±20%, 6.3V X5R ceramic
capacitors (0201)
TDK C0603X5R0J104M
2.2µF ±20%, 6.3V X5R ceramic
capacitors (0603)
TDK C1608X5R0J225M
220µF ±20%, 6.3V tantalum
capacitors (C-case)
AVX TPSC227M006R0250
10µF ±20%, 10V X5R ceramic
capacitors (1210)
TDK C3225X5R1A106M
0.01µF ±5%, 25V C0G ceramic
capacitor (0603)
TDK C1608C0G1E103J
0.47µF ±20%, 6.3V X5R ceramic
capacitor (0402)
TDK C1005X5R0J474K
DESIGNATION QTY
DESCRIPTION
Dual Schottky diode (SOT23)
Zetex BAS70-04
Central Semiconductor CMPD6263S
Vishay BAS70-04
Diodes INC BAS70-04
2 x 20 right-angle female connector
SMA PC mount connectors
2-pin headers
Dual-row, 40-pin header
Jumper, dual-row, 6-pin header
Jumpers, 3-pin headers
Jumper, 2-pin header
49.9Ω ±1% resistors (0603)
D1
1
J1
J2, J3, J5, J6,
J8, J9, J10,
J12, J13
J4, J7
J11
JU1
JU2, JU3, JU5,
JU6
JU4
R1–R4, R55,
R56, R61
R5–R16,
R37–R42, R64,
R65
R17–R20
R21–R24,
R25–R36,
R43–R46,
R62, R66
R47–R54
R57, R58
R59
R60
R63
RA1, RA2
RA3, RA4
RA5, RA6
T1, T2
TP1–TP5
1
9
2
1
1
4
1
7
C15, C16
2
0
4
Not installed (0402)
24.9Ω ±1% resistors (0402)
C18, C19, C20,
C67–C72
9
C22, C24, C26,
C27
C30,
C41–C44,
C77, C86
4
0
Not installed (0603)
8
2
1
1
1
2
2
2
2
5
10kΩ ±1% resistors (0603)
4.02kΩ ±1% resistors (0603)
6.04kΩ ±1% resistor (0603)
2.0kΩ ±1% resistor (0603)
5kΩ potentiometer, 19-turn, 3/8in
Vishay T93YB-5K-10-D06
100Ω ±5% resistor arrays
Panasonic EXB-2HV-101J
51Ω ±5% resistor arrays
Panasonic EXB-2HV-510J
Not installed (1206)
1:1 RF transformers
Coilcraft TTWB3010-1
Test points (black)
7
C49–C60
12
C61–C66
6
C79
1
C83
1
2
_______________________________________________________________________________________
MAX19700 Evaluation Kit/Evaluation System
Component List (continued)
DESIGNATION QTY
U1
1
DESCRIPTION
Maxim MAX19700ETM (48-pin thin
QFN 7mm x 7mm)
20-bit dual-supply bus transceiver
(56-pin TSSOP)
Texas Instruments
SN74AVCH20T245GR
Maxim MAX9113ESA (8-pin SO)
Maxim MAX4108ESA (8-pin SO)
Maxim MAX4478AUD (14-pin TSSOP)
DESIGNATION QTY
U7
1
DESCRIPTION
Maxim MAX3023EUD (14-pin TSSOP)
Maxim MAX3027EUD (14-pin TSSOP)
Dual-supply 5-bit signal translator
(14-pin DQFN)
Fairchild FXL5T244
Shunts
MAX19700 PC board
MAX19700 EV kit software (CD-ROM)
Evaluate: MAX19700
U2
1
U8
None
None
None
1
8
1
1
U3
U4, U5
U6
1
2
1
Component Suppliers
SUPPLIER
AVX
Central Semiconductor
Coilcraft
Diodes Inc.
Fairchild
Panasonic
TDK
Texas Instruments
Vishay/Vitramon
Zetex USA
PHONE
843-946-0238
631-435-1110
847-639-6400
805-446-4800
888-522-5372
714-373-7366
847-803-6100
972-644-5580
203-268-6261
631-543-7100
FAX
843-626-3123
631-435-1824
847-639-1469
805-446-4850
—
714-737-7323
847-390-4405
214-480-7800
203-452-5670
631-864-7630
WEBSITE
www.avxcorp.com
www.centralsemi.com
www.coilcraft.com
www.diodes.com
www.fairchildsemi.com
www.panasonic.com
www.component.tdk.com
www.ti.com
www.vishay.com
www.zetex.com
Note:
Indicate that you are using the MAX19700 when contacting these component suppliers.
Quick Start
Recommended Equipment
• DC power supplies:
Analog (VDD)
+3.0V, 100mA
Clock (CVDD)
+3.0V, 100mA
Digital (OVDD)
+1.8V, 100mA
Buffers (BVCC)
+3.3V, 100mA
Op-Amp Positive (VOP)
+5.0V, 250mA
Op-Amp Negative (VON)
-5.0V, 250mA
• Signal generator with low phase noise and low jitter
for clock input signal (e.g., HP 8662A, HP 8644B)
• Two signal generators with low phase noise for ana-
log signal inputs (e.g., HP 8662A, HP 8644B)
• Logic analyzer or data-acquisition system (e.g., HP
16500C, TLA621)
• Analog bandpass filters (e.g., Allen Avionics, K&L
Microwave) for input signals and clock signal
• Two spectrum analyzers (e.g., HP 8560E)
• One 10-bit digital pattern generator (e.g., Tektronix
DG2020A)
Procedure
The MAX19700 EV kit is a fully assembled and tested
surface-mount board. Follow the steps below to verify
board operation.
Do not turn on power supplies or
enable signal/data generators until all connections
are completed.
Command Module Setup
1) Set both switches at SW1 to the OFF position to dis-
able the SDA/SCL pullup resistors.
2) Place a shunt across pins 1-2 of the VDD select
jumper (command module working voltage set
to +3.3V).
_______________________________________________________________________________________
3
MAX19700 Evaluation Kit/Evaluation System
Evaluate: MAX19700
3) Connect a cable from the computer’s serial port to
the command module (CMOD232) interface board.
Use a
straight-through
9-pin male-to-female
cable. To avoid damaging the EV kit or computer,
do not use a 9-pin null-modem cable or any other
proprietary interface cable that is physically similar
to the straight-through cable.
4) Connect the provided wall-cube power supply to
the CMOD232 board.
EV Kit Software Setup
5) The MAX19700.EXE software program can be run
from the CD-ROM or hard drive. Use the
INSTALL.EXE program to copy the files and create
icons in the Windows 98/2000/XP
Start
menu.
EV Kit Setup
6) Verify that shunts are installed in the following locations:
JU1 (1-2)
→
CS
Connected
JU1 (3-4)
→
SCLK Connected
JU1 (5-6)
→
DIN Connected
JU2 (1-2)
→
MAX19700 Enabled
JU4 (Installed)
→
Internal Reference Enabled
JU5 (1-2)
→
Digital Bus Level Shifting Enabled
7)
8)
9)
JU6 (2-3)
→
Reserved
Connect a +3.0V, 100mA power supply to VDD.
Connect the ground terminal of this supply to GND.
Connect a +3.0V, 100mA power supply to CVDD.
Connect the ground terminal of this supply to GND.
Connect a +1.8V, 100mA power supply to OVDD.
Connect the ground terminal of this supply to
DGND.
Connect a +3.3V, 100mA power supply to BVCC.
Connect the ground terminal of this supply to
DGND.
Connect a +5V, 250mA power supply to VOP.
Connect the ground terminal of this supply to GND.
14) The MAX19700 supports three modes of operation:
a. To connect a logic analyzer to the EV kit and
test the Rx ADCs, skip to step 15.
b. To connect a spectrum analyzer to the EV kit
and test the Tx DACs, skip to step 36.
c. To connect an ASIC or FPGA to the EV kit,
see the
Configuring for ASIC/FPGA
Connection
section in this document.
Rx ADC Setup
15) Ensure that a shunt is placed across pins 2 and 3
of jumper JU3.
16) Connect the clock signal generator to the input of
the clock bandpass filter.
17) Connect the output of the clock bandpass filter to
the EV kit SMA connector labeled J10.
18) Connect the first analog signal generator to the
input of the desired bandpass filter.
19) Connect the output of the bandpass filter to the EV
kit SMA connector labeled J3 (I channel).
20) Connect the second analog signal generator to the
input of the desired bandpass filter.
21) Connect the output of the bandpass filter to the EV
kit SMA connector labeled J6 (Q channel).
22) Ensure that all signal generators are phase-locked
to a common reference frequency.
23) Connect the logic analyzer to J11. See the
Digital
Data Bit Locations
section in this document for
header connections.
24) Set the logic analyzer to capture 10-bit CMOS data
on the falling edge for the I channel (J3) or the ris-
ing edge for the Q channel (J6).
25) Turn on the -5V power supply.
26) Turn on all remaining power supplies.
27) Plug the CMOD232 wall cube into an electrical outlet.
28) Enable the signal generators.
29) Set the clock signal generator to output a 7.5MHz
signal. The amplitude of the generator should be
sufficient to produce a 13.8dBm signal at the SMA
input of the EV kit. Insertion losses due to the series-
connected filter (step 16) and the interconnecting
cables will decrease the amount of power seen at
the EV kit input. Account for these losses when set-
ting the signal-generator amplitude.
10)
11)
12) Connect a -5V, 250mA power supply to VON.
Connect the ground terminal of this supply to GND.
13) Carefully align the 40-pin connector of the
MAX19700 EV kit (J1) with the 40-pin header of the
CMOD232 interface board (P4). Gently press them
together.
4
_______________________________________________________________________________________
MAX19700 Evaluation Kit/Evaluation System
30) Set the analog input signal generators to output the
desired frequency. The amplitude of the generator
should produce a signal that is no larger than
4.5dBm as measured at the SMA input of the EV kit.
Insertion losses due to the series-connected filter
(steps 18 and 20) and the interconnecting cables
will decrease the amount of power seen at the EV
kit input. Account for these losses when setting the
signal generator amplitude.
31) Start the MAX19700 program by opening its icon in
the
Start
menu.
32) Normal device operation can be verified by the
“Status: Interface Board Operational” text in the
Interface box.
33) Click the POR Reset button on the MAX19700 EV
kit software GUI.
34) Enable the logic analyzer.
35) Capture data using the logic analyzer.
Tx DAC Setup
36) Ensure that a shunt is placed across pins 1 and 2
of jumper JU3.
37) Connect the clock signal generator to the input of
the clock bandpass filter.
38) Connect the output of the clock bandpass filter to
the EV kit SMA connector labeled J10.
39) Connect the output of the clock signal generator to
the data generator synchronization input.
40) Connect the first spectrum analyzer to the EV kit
SMA connector labeled J8 (Q channel).
41) Connect the second spectrum analyzer to the EV
kit SMA connector labeled J9 (I channel).
42) Connect the data generator to J11. See the
Digital
Data Bit Locations
section in this document for
header connections.
43) Turn on the -5V power supply.
44) Turn on all remaining power supplies.
45) Plug the CMOD232 wall cube into an electrical outlet.
46) Enable the signal generator.
47) Set the clock signal generator to output a 7.5MHz
signal. The amplitude of the generator should be
sufficient to produce a 16dBm signal at the SMA
input of the EV kit. Insertion losses due to the series-
connected filter (step 37) and the interconnecting
cables will decrease the amount of power seen at
the EV kit input. Account for these losses when set-
ting the signal generator amplitude.
48) Load the desired test pattern into the data genera-
tor. Data clocked on the rising edge of the clock is
transmitted to the Q channel. Data clocked on the
falling edge of the clock is transmitted to the I
channel.
49) Start the MAX19700 program by opening its icon in
the
Start
menu.
50) Normal device operation can be verified by the
“Status: Interface Board Operational” text in the
Interface box.
51) Click the POR Reset button on the MAX19700 EV
kit software GUI.
52) Enable the pattern generator.
53) Enable the spectrum analyzers.
54) Analyze the data on the EV kit outputs (J8 and J9)
with the spectrum analyzers.
Evaluate: MAX19700
_______________________________________________________________________________________
5
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