MAX5183 Evaluation MAX5183 evaluation kit) designed simplify eval

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MAX5183 Evaluation MAX5183 evaluation kit) designed simplify eval

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MAX5183 Evaluation
MAX5183 evaluation kit) designed simplify evaluation 8-bit 10-bit, dual, 40MHz, simultaneous-update alternate-phase-update MAX5180/MAX5183, MAX5182/MAX5185, MAX5186/ MAX5189, MAX5188/MAX5191 digital-to-analog converters (DACs). board contains circuitry necessary evaluating dynamic performance these high-speed converters, including circuit convert DAC's differential outputs into single-ended outputs. Since design combines high-speed analog digital circuitry, board layout calls special precautions design features. Connector pads power supplies (AVDD, DVDD, VCC, VEE), amplifier outputs (OUT1P, OUT1N, VOUT1, OUT2P, OUT2N, VOUT2), connectors digital control inputs (D0-D9, CLK) simplify connection kit. four-layer board layout optimized best dynamic performance. MAX5183 dual, 10-bit, 40MHz, simultaneousupdate installed board. used evaluate MAX5180, MAX5182, MAX5185, MAX5186, MAX5188, MAX5189, MAX5191 with minor component changes.
DESIGNATION C10, C12, C14, C18, C21, C23, C11, C13, C16, C17, C19, C20, C22, R1-R10, R13, R11, R12, R30, R15, R16-R25, R28, R29, R35, R36, R41, R42, R26, R27, R31, R35, R36, R41, DESCRIPTION 10µF, tantalum capacitors
Features
Fast Evaluation Performance Testing Coaxial Connectors Clock Data Inputs Performance-Optimized Four-Layer Board with Separate Analog Digital Power Ground Connections On-Board Differential Single-Ended Conversion Circuitry Fully Assembled Tested with MAX5183BEEI
Evaluates: MAX5180/82/83/85/86/88/89/91
Ordering Information
PART MAX5183EVKIT TEMP. RANGE +70°C PACKAGE QSOP
Component List
DESIGNATION DESCRIPTION resistor, supplied (Note: Install evaluate currentoutput DACs MAX5180, MAX5182, MAX5186, MAX5188.) 3-pin headers Female connectors Ferrite bead Panasonic EXC-CL3216U1
0.1µF, ceramic capacitors
JU1-JU7 D0-D9, CLK, OUT1P, OUT1N, OUT2P, OUT2N, REFO, AVDD, AGND, DVDD, DGND, VCC, None None None VOUT1, VOUT2
ceramic capacitors, optional output bandwidth-limiting capacitors (not supplied) 49.9 resistors resistors resistors installed, optional termination resistors shunt configuration resistors resistors (Note: Install evaluate current-output DACs MAX5180, MAX5182, MAX5186, MAX5188.)
Test points
Maxim MAX5183BEEI dual Maxim MAX4108ESA low-distortion amplifiers board MAX5183 data sheet MAX5183 data sheet Baluns, Coilcraft TTWB1010-1 Scope-probe jacks
Maxim Integrated Products
free samples latest literature, visit www.maxim-ic.com phone 1-800-998-8800. small orders, phone 1-800-835-8769.
MAX5183 Evaluation Evaluates: MAX5180/82/83/85/86/88/89/91
Quick Reference
delivered fully assembled, tested, sealed antistatic bag. ensure proper operation, open antistatic only static-safe work area follow instructions listed below. turn power supplies until power connections established. Figure shows typical evaluation setup single-ended output operation: Connect power supply marked VEE. Connect supply's ground AGND pad. This negative supply MAX4108 amplifiers also connected ground singlesupply operation. Connect power supply marked AVDD. Connect supply's ground marked AGND. Connect power supply marked VCC. Connect supply's ground marked AGND. Connect power supply marked DVDD. Connect supply's ground marked DGND. Connect word pattern generator (e.g., Tektronix/Sony DG2020A) with digitized pattern sinusoidal input signal digital data control inputs (D0-D9, DACEN, REN, CS). Connect appropriate low-phase-noise clock signal generator (e.g., 8662A) clock input (CLK) DAC. Connect inputs four-channel digital oscilloscope (e.g., Tektronix TDS648B) outputs OUT1P, OUT1N, OUT2P, OUT2N, connect input channels pads marked VOUT1 VOUT2 observe reconstructed output waveforms. Ensure jumpers JU1-JU7 configured default settings shown Tables 1-4. Tables jumpers only. Turn supplies signal sources.
DIGITAL SCOPE fCLK 40MHz 8662A CLOCK SOURCE SYNC DG2020 CONTROL SIGNAL
Differential Outputs
MAX5180/MAX5182/MAX5186/MAX5188 currentoutput DACs designed supply full-scale output currents into loads, parallel with capacitive load 5pF. MAX5183/MAX5185/ MAX5189/MAX5191 voltage-output DACs have on-chip resistors that restore array currents proportional, differential voltages ±400mV full scale. These differential output voltages then used drive balun transformer low-distortion, high-speed operational amplifier (such MAX4108 devices transformers supplied kit, Figure convert differential voltage into single-ended voltage. Alternately, outputs derived directly from amplifier outputs outputs (Tables MAX5183 shipped with necessary external circuitry operate installed MAX5183 voltage-output DAC. full-scale output current-set resistor (R43) conversion resistors (R35, R36, R41, R42) required voltage-output DACs therefore installed MAX5183 kit.
AVDD AGND
ANALOG SUPPLY ANALOG SUPPLY ANALOG GROUND ANALOG SUPPLY POWER SUPPLIES DIGITAL GROUND DIGITAL SUPPLY
PATTERN/WORD DIGITAL GENERATOR INPUTS D0-D7*/D0-D9**
MAX5183
DGND DVDD VOUT1 VOUT2
Detailed Description
Digital Inputs
MAX5183 board includes high-frequency connectors digital data, clock, controlline inputs (D0-D9, CLK). Each these matchedimpedance signal lines provides on-board series termination resistors located signal path digital inputs DGND. Optionally, termination resistors DGND user installed.
*APPLIES 8-BIT VERSIONS: **APPLIES 10-BIT VERSIONS:
Figure Typical Test Setup Single-Ended Operation
MAX5183 Evaluation
Reference Options
MAX5183 family features on-chip +1.2V precision bandgap reference, which activated connecting reference enable DGND. this purpose, jumper must remain location (Table which default location used when board shipped. disable internal reference, connect DVDD placing jumper location 1-2. temperaturestable external reference applied REFO full-scale current/voltage output.
Evaluates: MAX5180/82/83/85/86/88/89/91
Table Selecting Reference Mode
JUMPER (JU1) POSITION 2-3* REFERENCE MODE Connect external precision reference REFO. Internal +1.2V bandgap reference active
*Indicates default jumper state
Standby Mode
place standby mode (Table connect digital inputs DACEN DGND setting jumpers locations 2-3. standby, both reference control amplifier active, with current array inactive. exit this condition, pull DACEN high with held DGND leaving jumper location changing jumper location 1-2.
Table Selecting Power-Down Mode
JUMPER (JU3) POSITION 2-3* Don't care *Indicates default jumper state DACEN JUMPER (JU2) POSITION 1-2* POWER-DOWN MODE Shutdown Standby Normal operation
Shutdown Mode
lowest power consumption, MAX5183 provides shutdown mode (Table which reference, control amplifier, current array inactive converter's supply current reduced 1µA. enter this mode, connect DVDD changing jumper location 1-2. return active mode, connect DGND changing jumper location 2-3, connect DACEN DVDD changing jumper location 1-2.
Table Alternate Output Drive (OUT1N, OUT1P) Selection
POSITION POSITION OUT1N, OUT1P PADS Direct outputs voltage-output MAX5183 (U1) Buffered outputs from amplifier MAX4108 (U2,
Power Supplies
features separate analog digital power ground connections best dynamic performance. necessary connect analog digital grounds together externally. grounds connected together single point MAX5183 ferrite bead L1). power-supply connectors located board.
Table Alternate Output Drive (OUT2N, OUT2P) Selection
POSITION POSITION OUT2N, OUT2P PADS Direct outputs voltage-output MAX5183 (U1) Buffered outputs from amplifier MAX4108 (U3,
Evaluating MAX518x Family
MAX5183 used evaluate other MAX518x family 8-bit 10-bit dual DACs. changes required this listed Table When evaluating MAX5186/MAX5189 (dual, 8-bit DACs with simultaneous update) MAX5188/ MAX5191 (dual, 8-bit DACs with alternate-phase update), input data bits must connected DGND ensure proper operation.
MAX5183 Evaluation Evaluates: MAX5180/82/83/85/86/88/89/91
Board Layout
4-layer board design (Table optimized high-speed signals. board uses epoxy dielectric material with relative dielectric constant 4.9. proper design requires 14mils foil thickness each copper layer 0.1mm dielectric thickness between layers. high-speed signals routed through impedance-matched transmission lines. line width these signal lines 14mils, with ground plane height 8mils. MAX5183 total board thickness 0.062in (1.57mm), using four copper layers. board layout separates analog digital portions circuit. Matched impedance transmission lines used high-speed digital inputs. digital inputs arranged half circle match line lengths between inputs pattern clock generators' connectors. lengths these transmission lines matched within 50mils minimize layout-dependent data skew. Wherever large ground planes used, care taken ensure that analog planes overlap with digital planes. This eliminates possibility capacitively coupling digital noise through circuit board sensitive analog areas.
Table Evaluating Dual, 8-Bit/10-Bit DACs MAX518x Family
DEVICE INSTALLED MAX5180 MAX5182 MAX5183* MAX5185 MAX5186 MAX5188 MAX5189 MAX5191 shipped R35, R36, R41, R42, Installed Installed installed installed Installed Installed installed installed
Table Board Layers
LAYER Layer Layer Digital Ground Plane Layer III, Analog Ground Plane Layer Bottom DESCRIPTION Components, jumpers, connectors, digital microstrip lines, termination resistors, DVDD, Digital ground, DGND Analog ground, AGND Components, termination resistors, AVDD,
OUT1P OUT2N OUT2P SCOPE JACK VOUT2 10µF 10µF OPEN AVDD AVDD DVDD OPEN 10µF 10µF OUT1P OUT2P DACEN REFO REFR AGND DGND OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN 49.9 49.9 49.9 49.9 49.9 49.9 OPEN 0.1µF REFO 49.9 N.C. 49.9 49.9 49.9 49.9 OUT1N OUT2N 10µF 10µF 10µF OPEN OPEN AVDD 0.1µF C20, 0.1µF C21, 10µF CREF1 CREF2 AVDD 0.1µF 0.1µF 0.1µF DVDD 0.1µF AVDD 0.1µF OPEN OPEN COILCRAFT TTWB1010-1 TYPE DVDD 10µF 10µF 0.1µF 0.1µF
OUT1N
SCOPE JACK 0.1µF
VOUT1
COILCRAFT TTWB1010-1 TYPE
Figure MAX5183 Schematic
0.1µF 0.1µF
MAX5183
DVDD
DVDD
49.9
DVDD
Evaluates: MAX5180/82/83/85/86/88/89/91
AGND DGND
MAX5183 Evaluation
MAX5183 Evaluation Evaluates: MAX5180/82/83/85/86/88/89/91
1.0"
1.0"
Figure MAX5183 Component Placement Guide- Component Side
Figure MAX5183 Component Placement Guide- Solder Side
1.0"
1.0"
Figure MAX5183 Board Layout-Component Side (Layer
Figure MAX5183 Board Layout-DGND Plane (Layer
MAX5183 Evaluation Evaluates: MAX5180/82/83/85/86/88/89/91
1.0"
1.0"
Figure MAX5183 Board Layout-AGND Plane (Layer III)
Figure MAX5183 Board Layout-Solder Side (Layer
MAX5183 Evaluation Evaluates: MAX5180/82/83/85/86/88/89/91
NOTES
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2000 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

MAX5183 Evaluation MAX5183 evaluation kit) designed simplify eval

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