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general description the max1211 evaluation kit (ev kit) is a fully assembled and tested circuit board that contains all the components for evaluating the max1211 and max1206?ax1209 12-bit, analog-to-digital converters (adcs). the max1211 accepts differential or single- ended analog input signals. the ev kit allows for evaluation of each adc with both types of signals from one single-ended analog signal source. the digital output produced by the adc can be easily captured with a user-provided high-speed logic analyzer or data-acquisition system. the ev kit operates from 2.0v and 3.3v power supplies. it includes circuitry that generates a differential clock signal from an ac sig- nal provided by the user. the ev kit comes with the max1211 installed. contact the factory for free samples of the pin-compatible max1206/max1207/max1208 or max1209 to evaluate these parts. features ? up to 65msps sampling rate with the max1211 ? low voltage and power operation ? fully differential or single-ended signal input configuration ? differential or single-ended clock configuration ? on-board clock-shaping circuit with variable duty cycle ? also evaluates max1206/max1207/max1208 and max1209 ? fully assembled and tested evaluates: max1211, max1206?ax1209 max1211 evaluation kit ________________________________________________________________ maxim integrated products 1 19-3078; rev 0; 11/03 component list part selection table for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. ordering information note: to evaluate the max1206/max1207/max1208 or max1209, request a free sample with the max1211 ev kit. * future product?ontact factory for availability. part temp range ic package MAX1211EVKIT 0 c to +70 c 40 thin qfn part speed (msps) application max1206etl* 40 baseband sampling max1207etl* 65 baseband sampling max1208etl* 80 baseband sampling max1209etl* 80 if sampling max1211etl 65 if sampling designation qty description c1, c2, c7, c55 4 22? 20%, 10v tantalum capacitors (b case) avx tajb226m010 c3?6, c8?12, c56 10 1.0? 20%, 10v x5r ceramic capacitors (0603) tdk c1608x5r1a105m c13, c15, c17, c21?29, c33, c44, c50?53, c57 19 0.1? 20%, 10v x5r ceramic capacitors (0402) tdk c1005x5r1a104m c14, c16, c18, c19, c20, c38, c48, c49 0 not installed (0402) c30, c31, c35, c36, c37, c61 6 2.2? 20%, 6.3v x5r ceramic capacitors (0603) tdk c1608x5r0j225m designation qty description c32, c34, c39, c58 4 4.7? 20%, 6.3v x5r ceramic capacitors (0603) tdk c1608x5r0j475m c40, c41, c45, c47 0 not installed (0603) c42, c43, c54 3 0.01? 20%, 25v x7r ceramic capacitors (0402) tdk c1005x7r1e103m c59 1 1.0? 20%, 6.3v x5r ceramic capacitor (0402) tdk c1005x5r0j105m c60 1 10? 20%, 6.3v x5r ceramic capacitor (0805) tdk c2012x5r0j106m d1 1 dual schottky diode (sot23) zetex bas70-04
evaluates: max1211, max1206?ax1209 max1211 evaluation kit 2 _______________________________________________________________________________________ component list (continued) designation qty description j1 1 dual-row, 40-pin header ju1, ju4 0 not installed ju2, ju5, ju6, ju9, ju10, ju11 6 jumper, 3-pin headers ju7, ju8 2 jumper, 2-pin headers l1?4 4 emi filters murata nfm41pc204f1h3b r1, r13?24, r26, r32?35 0 not installed (0603) r2, r11, r12 0 not installed (0402) r3, r4, r7, r8, r9, r30, r31 7 49.9 ? 0.5% resistors (0603) r5, r6 2 1.0k ? 5% resistors (0402) r10 1 10k ? potentiometer, 12 turn, 1/4in r27 1 51.1 ? 1% resistor (0603) ra1?a4 4 220 ? 5% resistor arrays panasonic exb-2hv-221j t1, t2 2 1:1 rf transformers mini-circuits adt1-1wt t3 1 2:1 rf transformer mini-circuits t2-1t-kk81 supplier phone fax website avx 843-946-0238 843-626-3123 www.avxcorp.com fairchild 888-522-5372 www.fairchildsemi.com mini-circuits 718-934-4500 718-332-4661 www.minicircuits.com murata 770-436-1300 770-436-3030 www.murata.com panasonic 714-373-7366 714-737-7323 www.panasonic.com tdk 847-803-6100 847-390-4405 www.component.tdk.com zetex 631-543-7100 631-864-7630 www.zetex.com designation qty description tp1?p5 5 test points (black) clock4 0 not installed (sma) clock, ainp, ainn, acom 4 sma pc-mount connectors u1 1 maxim max1211etl (tqfn-40) u2 1 low-voltage 16-bit register (48-pin tssop) texas instruments sn74avc16374dgg u3 0 not installed (5-pin sc70) u4 1 tinylogic uhs buffer (5-pin sc70) fairchild nc7sz125p5 u5 0 not installed (8-pin so) u6 1 tinylogic dual uhs inverter (6-pin sc70) fairchild nc7wz04p6 none 6 shunts none 1 max1211 pc board component suppliers note: please indicate that you are using the max1211 when contacting these component suppliers.
evaluates: max1211, max1206?ax1209 max1211 evaluation kit _______________________________________________________________________________________ 3 quick start recommended equipment dc power supplies: digital (vldut) 2.0v, 50ma logic (vl) 2.0v, 100ma analog (vdut) 3.3v, 250ma clock (vclk) 3.3v, 200ma signal generator with low phase noise and low jitter for clock input (e.g., hp 8662a, hp 8644b) signal generator for analog signal input (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 signal and clock signal digital voltmeter procedure the max1211 ev kit is a fully assembled and tested surface-mount board. follow the steps below for board operation. do not turn on power supplies or enable signal generators until all connections are completed: 1) verify that shunts are installed across pins 2-3 of jumpers ju2 (max1211 enabled) and ju6 (two's complement digital output), and across pins 1-2 of ju5 (differential clock input) and ju4 (fixed for max1211). 2) verify that shunts are installed across pins 2-3 of jumpers ju9 and ju10, and across pins 1-2 of ju11. 3) connect the output of the 65mhz clock generator to the input of the clock bandpass filter. 4) connect the output of the clock bandpass filter to the clock sma connector. 5) connect the output of the analog signal generator to the input of the signal bandpass filter. 6) connect the output of the signal bandpass filter to the ainp sma connector. 7) connect the logic analyzer to the square pin header (j1). see the output signal section for bit locations and j1 header designations. the system clock is available on pin j1-3. 8) connect a 3.3v, 250ma power supply to vdut. connect the ground terminal of this supply to the corresponding gnd pad. 9) connect a 2.0v, 100ma power supply to vl. connect the ground terminal of this supply to the gnd pad. 10) connect a 2.0v, 50ma power supply to vldut. connect the ground terminal of this supply to the gnd pad. 11) if evaluating the single-ended clock mode, connect a 3.3v, 200ma power supply to vclk. connect the ground terminal of this supply to the corresponding gnd pad. if evaluating the differential clock mode, short vclk to gnd. 12) turn on the 3.3v power supplies. 13) turn on the 2.0v power supplies. 14) enable the signal generators. set the clock signal generator for an output amplitude of 2v p-p or higher (10dbm or higher) and the frequency (f clk ) to 65mhz. set the analog input signal generators for an output amplitude of 1v p-p and to the desired frequency. the two signal generators should be synchronized to each other. adjust the input signal level to overcome cable and bandpass filter losses. 15) enable the logic analyzer. 16) collect data using the logic analyzer. detailed description the max1211 ev kit is a fully assembled and tested cir- cuit board that contains all the components necessary to evaluate the performance of the max1211 and the max1206?ax1209. data generated by the max1211 is captured on a single 12-bit bus. the ev kit comes with the max1211 installed, which can be evaluated with a maximum clock frequency (f clk ) of 65mhz. the max1211 accepts differential or single-ended analog input signals and differential or single-ended clock sig- nals. with the proper board configuration (as specified below), the adc can be evaluated with both types of signals by supplying only one single-ended analog sig- nal to the ev kit. the ev kit is designed as a four-layer pc board to opti- mize the performance of the max1211. for simple operation, the ev kit is specified to have 3.3v and 2.0v power supplies applied to analog and digital power planes, respectively. however, the digital plane can be operated down to 1.7v without compromising the board? performance. the logic analyzer? threshold must be adjusted accordingly.
evaluates: max1211, max1206?ax1209 4 _______________________________________________________________________________________ access to the digital outputs is provided through con- nector j1. the 40-pin connector easily interfaces direct- ly with a user-provided logic analyzer or data-acquisi- tion system. the dav output clock signal is available at pin j1-3 (clk), which can be used to synchronize the output data to the logic analyzer. power supplies the max1211 ev kit requires separate analog and digi- tal power supplies for best performance. separate 3.3v power supplies are used to power the analog portion of the max1211 (vdut) and the clock-shaping circuit (vclk). to evaluate the clock-shaping circuit, 3.3v must be supplied to vclk. when evaluating the differential clock, reduce interference from the unused clock-shap- ing circuit by shorting vclk to gnd. separate 2.0v power supplies are used to power the digital portion of the max1211 (vldut) and the buffer/driver (vl). the digital portions of the ev kit operate with voltage sup- plies as low as 1.7v and as high as 3.6v. clock the max1211 allows for either differential or single- ended signals to drive the clock inputs. the max1211 ev kit supports both methods. in single-ended operation, the signal is applied to the adc through a buffer (u6). in differential mode, an on- board transformer takes the single-ended analog input and generates a differential analog signal at the adc? input pins. max1211 clock input the max1211 is capable of accepting either differential or single-ended clock input signals. jumper ju5 con- trols this feature. see table 1 for jumper settings. transformer-coupled clock a single-ended signal can be converted to a differential signal through transformer t3. in this mode, diode d1 limits the amplitude of the clock signal, thereby over- driving the clock sma input. this can increase the slew rate of the differential signal, thereby reducing clock jitter. see table 2 for clock-drive jumper settings. ensure that jumper ju5 (see the max1211 clock input section) is set correctly. clock-shaping circuit with variable duty cycle an on-board, variable duty cycle, clock-shaping circuit generates a single-ended clock signal from an ac-cou- pled sine wave applied to the clock sma connector. measure the clock signal at pin 2 of ju7 and adjust potentiometer r10 to obtain the desired duty cycle. see table 2 for shunt positions. input signal the max1211 accepts differential or single-ended ana- log input signals. however, the ev kit requires only a sin- gle-ended analog input signal. because the amplitude of the received signal at the adc depends on the actual cable loss and bandpass filter loss; account for these losses when configuring the signal input generator. direct-connect single-ended input to evaluate the max1211 with a single-ended input sig- nal directly connected to the adc input terminal, modi- fy the ev kit as follows: 1) remove transformers t1 and t2. 2) remove resistor r3. 3) short resistor r20. 4) install a 0.1? capacitor at the location designated by r14. 5) connect the input signal source to ainp. max1211 power-down jumper ju2 controls the power-down function of the max1211 only. other ics on the max1211 ev kit con- tinue to draw quiescent current from the power sup- plies. see table 3 for power-down jumper settings. max1211 evaluation kit table 1. max1211 clock input settings (ju5) shunt position max1211 clktyp pin max1211 clock input 1-2* connected to vldut differential 2-3 connected to gnd single ended * default configuration: ju5 (1-2). table 2. clock sma drive settings jumper shunt position description ju9 1-2 ju10 1-2 ju11 2-3 single-ended clock mode (see the clock-shaping circuit with variable duty-cycle section) ju9* 2-3 ju10* 2-3 ju11* 1-2 differential lock mode; a single- ended signal is converted to a differential signal that drives the max1211 clock inputs * default configuration: ju9 (2-3), ju10 (2-3), ju11 (1-2).
evaluates: max1211, max1206?ax1209 max1211 evaluation kit _______________________________________________________________________________________ 5 reference voltage the max1211 requires an input voltage reference at its refin pin to set the full-scale analog signal voltage input. the adc has a stable on-chip voltage reference of 2.048v, which can be accessed at refout. the ev kit was designed to use the on-chip voltage reference by shorting refin to refout through resistor r12. the user can externally adjust the reference level, and hence the full-scale range, by cutting the trace-shorting resistor r12 and installing resistors at locations r2 and r12 (located on the board's component side). calculate the resistor values using the following equation: where: r2 = 10k ? , ?%. v refout = 2.048v. v refin = desired refin voltage. alternatively, resistors r12 and r2 can be opened, and the adc's full-scale range can be set by applying a stable, low-noise, external voltage reference directly at the refin pad. output coding the digital output coding of the max1211 can be cho- sen to be either in two? complement format or gray code by configuring jumper ju6. see table 4 for shunt positions. output signal the max1211 features a 12-bit, parallel, cmos-compat- ible output bus. the outputs of the adc are fed into a buffer capable of driving large capacitive loads, which may be present at the logic analyzer connection. the outputs of the buffer are connected to a 40-pin header (j1), located on the right side of the ev kit, where the user can connect a logic analyzer or data-acquisition system. see table 5 for bit locations of header j1. evaluating the max1206?ax1209 to evaluate the max1206/max1207/max1208 or the max1209, remove ic u1 from the ev kit and install a free sample of the desired adc. rr v v - refout refin 12 2 1 = ? ? ? ? ? ? table 4. output code settings (ju6) shunt position max1211 g/ t pin operation 1-2 connected to vldut digital output in gray code 2-3* connected to gnd digital output in two's complement * default configuration: ju6 (2-3). table 5. output bit locations (j1) clock dor bit d11 bit d10 bit d9 bit d8 bit d7 bit d6 bit d5 bit d4 bit d3 bit d2 bit d1 bit d0 j1-3 clk j1-7 j1-11 j1-13 j1-15 j1-17 j1-19 j1-21 j1-23 j1-25 j1-27 j1-29 j1-31 j1-33 table 3. power-down settings (ju2) shunt position max1211 pd pin max1211 power-down status 1-2 connected to vldut powered down 2-3* connected to gnd normal operation * default configuration: ju2 (2-3).
evaluates: max1211, max1206?ax1209 max1211 evaluation kit 6 _______________________________________________________________________________________ u2 sn74avc16374 u4 nc7sz125 max1211 u1 16 48 7 18 31 42 25 15 14 13 12 11 10 220 ? ra1 1clk vl v cc v cc v cc v cc 2clk 9 2d8 2d7 2d6 2d5 2d4 2d3 2d2 2d1 c6 1.0 f vl 5 clkp j1-37 j1-39 nc j1-3 j1-9 nc j1-1 nc j1-35 j1-33 j1-31 j1-29 j1-27 j1-25 j1-21 j1-23 j1-19 j1-17 j1-15 j1-13 j1-11 j1-7 c35 2.2 f dut c23 0.1 f c36 2.2 f c24 0.1 f c37 2.2 f c25 0.1 f c30 2.2 f vldut c13 0.1 f c31 2.2 f c15 0.1 f c8 1.0 f vl c9 1.0 f c10 1.0 f c11 1.0 f j1-5 j1-38 j1-40 nc j1 j1-4 j1-10 j1-2 nc j1-36 j1-34 j1-32 j1-30 j1-28 j1-26 j1-22 j1-24 j1-20 j1-18 j1-16 j1-14 j1-12 j1-8 j1-6 c52 0.1 f 1 2 3 4 5 6 7 8 26 27 29 30 32 33 35 36 16 15 14 13 12 11 10 220 ? ra2 9 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 10 9 23 22 20 19 17 16 14 13 12 11 9 8 6 5 3 2 1d8 1d7 1d6 1d5 1d4 1d3 1d2 1d1 1oe 2oe 1 2 3 4 5 6 7 8 37 38 40 41 43 44 46 47 16 15 14 13 12 11 10 220 ? ra3 9 2q8 2q7 2q6 2q5 2q4 2q3 2q2 2q1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 220 ? ra4 9 1q8 1q7 1q6 1q5 1q4 1q3 1q2 1q1 1 2 3 4 5 6 7 8 1 24 tp5 4 10 15 21 gnd gnd gnd gnd gnd gnd gnd gnd 28 34 45 39 12 13 14 15 36 tp4 v dd v dd v dd v dd v dd ov dd ov dd dav pd g/t clktyp v dd refp refn inp com inn refout refin vdut 17 34 33 vldut vldut 37 ju2 3 1 2 40 11 8 1 2 5 3 6 n.c. n.c. d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 dor clkp clkn tp3 r12 short (pc trace) r2 open 4 7 gnd gnd gnd gnd 35 16 inp inn com refin clkn 4 oe a gnd v cc y 1 2 3 clko clko u3 open c5 1.0 f vl 5 4 oe a gnd v cc y 1 2 3 c12 1.0 f c7 22 f 10v vl vl l3 2 3 1 c29 0.1 f vldut ju6 3 1 2 c50 0.1 f c44 0.1 f c61 2.2 f vldut ju5 3 1 2 c51 0.1 f vdut tp1 ju4 3 1 2 c32 4.7 f c17 0.1 f c60 10 f tp2 c34 4.7 f c21 0.1 f c26 0.1 f c4 1.0 f c2 22 f 10v vldut vldut l2 2 3 1 c3 1.0 f c1 22 f 10v vdut vdut l1 2 3 1 gnd c56 1.0 f c55 22 f 10v vclk vclk l4 2 3 1 gnd 38 39 ju1 cut here nc figure 1. max1211 ev kit schematic (sheet 1 of 2)
evaluates: max1211, max1206?ax1209 max1211 evaluation kit _______________________________________________________________________________________ 7 27 clk q q v bb clk reset v cc 4 3 1 5 vclk vclk c14 open u5 open v ee r1 open clock4 r8 49.9 ? 0.5% clock c19 open c18 open vclk ju7 ju9 d1 u6-b 4 3 clkp com inp acom 8 c38 open c47 open r20 open r24 open r13 open r14 open c59 1.0 f c22 0.1 f c33 0.1 f c54 0.01 f c53 0.1 f c45 open c27 0.1 f c42 0.01 f c16 open c43 0.01 f c28 0.1 f r18 open r11 open r21 open r16 open r10 10k ? r5 1k ? r6 1k ? u6-a 6 5 1 1 1 2 2 2 2 3 3 3 6 5 4 t3 rl 6 c20 open c40 short c41 short ju8 ju11 clkn c57 0.1 f c58 4.7 f c48 open c49 open c39 4.7 f r17 open r33 open r7 49.9 ? 0.5% r9 49.9 ? 0.5% r3 49.9 ? 0.5% r4 49.9 ? 0.5% r30 49.9 ? 0.5% r31 49.9 ? 0.5% r26 open r27 51.1 ? 1% r32 short r19 short r23 short r22 short r35 short r34 short 1 2 3 ju10 1 2 3 1 acom ainp inn acom ainn 3 5 1 4 2 6 t1 3 5 1 4 2 6 t2 r15 short figure 1. max1211 ev kit schematic (sheet 2 of 2)
evaluates: max1211, max1206?ax1209 max1211 evaluation kit 8 _______________________________________________________________________________________ figure 2. max1211 ev kit component placement guide?omponent side
evaluates: max1211, max1206?ax1209 max1211 evaluation kit _______________________________________________________________________________________ 9 figure 3. max1211 ev kit pc board layout?omponent side
evaluates: max1211, max1206?ax1209 max1211 evaluation kit 10 ______________________________________________________________________________________ figure 4. max1211 ev kit pc board layout (inner layer 2)?round planes
evaluates: max1211, max1206?ax1209 max1211 evaluation kit ______________________________________________________________________________________ 11 figure 5. max1211 ev kit pc board layout (inner layer 3)?ower planes
evaluates: max1211, max1206?ax1209 max1211 evaluation kit 12 ______________________________________________________________________________________ figure 6. max1211 ev kit pc board layout?older side
maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 13 2003 maxim integrated products printed usa is a registered trademark of maxim integrated products. evaluates: max1211, max1206?ax1209 max1211 evaluation kit figure 7. max1211 ev kit component placement guide?older side

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