general description the MAX3540 evaluation kit (ev kit) simplifies the test- ing and evaluation of the MAX3540 ntsc, atsc, and hybrid tuner. the ev kit is fully assembled and tested at the factory. standard 50 sma connectors are includ- ed on the ev kit for the inputs and outputs to allow quick-and-easy evaluation on the test bench. this document provides a list of equipment required to evaluate the device, a straightforward test procedure to verify functionality, a description of the ev kit circuit, the circuit schematic, a component list of materials for the kit, and artwork for each layer of the pcb. features ? easy evaluation of the MAX3540 ? 50 sma connectors ? all critical peripheral components included ? fully assembled and tested ? pc control software available at www.maxim-ic.com evaluates: MAX3540 MAX3540 evaluation kit ________________________________________________________________ maxim integrated products 1 19-4164; rev 0; 6/08 component list for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. ordering information designation qty description +3.3v, +5v, if_agc, mux, tp1 5 red test points, pc mini red keystone 5000 c1, c6, c26, c27, c37, c70?74 10 100pf ?% ceramic capacitors (0603) murata grm1885c1h101j c2, c4, c5, c19, c20, c53, c54, c56, c59, c62, c63, c64, c66, c86 14 1000pf ?% ceramic capacitors (0402) murata grm1555c1h102j c3 1 0.033? ?% ceramic capacitor (0805) murata grm21a7u1h333j c7 1 2.0pf ?.1pf ceramic capacitor (0402) murata grm1555c1h3r9b c8, c23, c78 3 1000pf ?0% ceramic capacitors (0603) murata grm188r71h102k c9, c12, c13, c15, c16, c45 6 22pf ?% ceramic capacitors (0402) murata grm1555c1h220j c10, c30, c87 3 0.1? ?0% ceramic capacitors (0402) murata grm155r71c104k c11, c96 2 5.6pf ?.25pf ceramic capacitors (0402) murata grm1555c1h5r6c designation qty description c14 1 1.2pf ?.1pf ceramic capacitor (0402) murata grm1555c1h1r2b c17 1 22nf ?0% ceramic capacitor (0603) murata grm188r71h223k c18 1 4.7pf ?.25pf ceramic capacitor (0402) murata grm1555c1h4r7c c21, c25 2 22pf ?% ceramic capacitors (0603) murata grm1885c1h220j c22 1 330pf ?0% ceramic capacitor (0402) murata grm155r71h331k c24, c75, c77 3 0.1? ?0% ceramic capacitors (0603) murata grm188r71c104k c28 1 120pf ?% ceramic capacitor (0603) murata grm1885c1h121j c29, c31 2 30pf ?% ceramic capacitors (0603) murata grm1885c1h300j c35 1 47pf ?% ceramic capacitor (0603) murata grm1885c1h470j part type MAX3540evkit ev kit
evaluates: MAX3540 MAX3540 evaluation kit 2 _______________________________________________________________________________________ component list (continued) designation qty description c36 1 0.01? ?0% ceramic capacitor (0402) murata grm155r71c103k c38, c39 0 not installed, capacitors c52 1 1500pf ?0% ceramic capacitor (0402) murata grm155r71h152k c55 1 10? ?0% ceramic capacitor (0805) murata grm21br61a106k c60, c61 2 120pf ?% ceramic capacitors (0402) murata grm1555c1h121j c65 1 0.47? ?0% ceramic capacitor (0805) murata grm21br71c474k c76 1 10? ?0% tantalum capacitor (r case) avx tajr106k006 c82 1 4700pf ?0% ceramic capacitor (0603) murata grm188r71h472k c85 1 470pf ?0% ceramic capacitor (0402) murata grm155r71h471k d1 1 da221 dual switching diode rohm da221tl fl2 1 x6941 bandpass filter epcos b39440-x6941-d100 gnd1, gnd2, gnd4 3 black test points, pc mini black keystone 5001 j1, j4 0 not installed, sma end-launch jacks j3, j19 2 connector sma end-launch jack receptacles, 0.062in johnson 142-0701-801 j13 1 db25 right-angle female connector amp 5745783-4 jp1, jp2, jp6 3 1 x 2-pin headers sullins pec36saan jp3, jp4, jp5 0 not installed jp11, jp12 2 1 x 3-pin headers sullins pec36saan jp2, jp11, jp12 3 shunt shorting jumpers sullins ssc02syan l1 1 22nh ?% inductor (0603) murata lqg18hn22nj00 l2, l15 2 270nh ?% inductors (0603) toko ll1608-fslr27j designation qty description l3, l16 2 3.3? ?0% inductors (0805) murata lqm21nn3r3k10 l4 1 not installed, inductor (0805) toko ll2012-fhlr68j l5 1 15nh ?% inductor (0402) murata lqw15an15nh00 l6 1 1.8? ?% inductor (1008) coilcraft 1008cs-182xjlc l7, l8 2 150nh ?% inductors (0603) murata lqw18anr15j00 l9 1 82nh ?% inductor (0603) murata lqw18an82nj00 l11 1 220nh ?% inductor (0603) murata lqw18anr22j00 l12, l13 2 0 resistors (0603) l14 1 47nh ?% inductor (0603) murata lqg18hn47nj00 l18 0 not installed, inductor q1 1 upa801t npn silicon high- frequency transistor nec upa801t r1, r2, r17, r18, r34, r56 0 not installed, resistors r3, r8, r48 3 100 ?% resistors (0402) r4, r15, r16, r55 40 resistors (0603) r5 1 75 ?% resistor (0402) r6, r13, r40, r41, r42 5 100 ?% resistors (0603) r7, r9 2 10k ?% resistors (0402) r10 1 86.6 ?% resistor (0603) r11 1 43.2 ?% resistor (0603) r12, r28 2 1.0k ?% resistors (0603) r14 1 300 ?% resistor (0603) r19 1 0 resistor (0402) r20, r21 2 1.0k ?% resistors (0402) r22, r23 2 1.1k ?% resistors (0402) r24 1 2.4k ?% resistor (0402) r25 1 2.2k ?% resistor (0402) r26, r27 2 120 ?% resistors (0402) r29, r31 2 51 ?% resistors (0402) r30 0 not installed, resistor r33 1 33 ?% resistor (0402) r38 1 1.3k ?% resistor (0402) r39 1 270 ?% resistor (0402) r43, r44, r58 3 5.1k ?% resistors (0603) r45, r46, r47 3 2.7k ?% resistors (0603) r49 1 2.7k ?% resistor (0402)
quick start test equipment required this section lists the recommended test equipment to verify operation of the MAX3540. it is intended as a guide only, and some substitutions are possible: one power supply capable of supplying at least 500ma at +3.3v one power supply capable of supplying at least 100ma at +5v for external if lna one dual-output power supply capable of supplying at least 5ma up to 3v (to apply gain control voltages) one rf signal generator capable of delivering at least 0dbm of output power at frequency (hp 8482a or equivalent) one rf spectrum analyzer capable of covering the operating frequency range of the device one pc (486dx33 or better) with windows ? 95/98, 2000, nt 4.0, xp or later operating system, 64mb of memory, and an available parallel port one 25-pin parallel cable ?0 sma cables (optional) one multichannel digital oscilloscope (optional) one network analyzer to measure return loss (optional) one ammeter to measure supply current evaluates: MAX3540 MAX3540 evaluation kit _______________________________________________________________________________________ 3 component list (continued) designation qty description t1 0 not installed t8 1 4:1 transformer toko #617pt-1664 u3 1 sn74lv07adr hex buffer/driver texas instruments sn74lv07adr u4 1 complete single-conversion television tuner (48 fclga-ep*) maxim MAX3540ulm+ designation qty description y2 1 4mhz crystal citizen am hcm49-4.000mabj-ut vcc2 0 not installed, pc mini red ? shunts (jpb1?pb7, rxbbbuf) sullins ssc02syan 1 pcb: MAX3540 evaluation kit component suppliers supplier phone website avx corporation 843-946-0238 www.avxcorp.com citizen america corp. 310-781-1460 www.citizencrystal.com coilcraft, inc. 847-639-6400 www.coilcraft.com epcos ag 732-906-4300 www.epcos.com johnson components 507-833-8822 www.johnsoncomponents.com keystone electronics corp. 209-796-2032 www.keyelco.com murata electronics north america, inc. 770-436-1300 www.murata-northamerica.com nec corp. 408-588-6000 www.nec.com rohm co., ltd. 858-625-3630 www.rohm.com sullins electronics corp. 760-744-0125 www.sullinselectronics.com texas instruments inc. 972-644-5580 www.ti.com toko america, inc. 847-297-0070 www.tokoam.com * ep = exposed pad. note: indicate that you are using the MAX3540 when contacting these component suppliers. windows is a registered trademark of microsoft corp.
evaluates: MAX3540 connections and setup this section provides a step-by-step guide to testing the basic functionality of the ev kit in uhf mode. caution: do not turn on dc power or rf signal gen- erators until all connections are completed: 1) verify that the jp1 and jp6 shunts are removed, the jp2 shunt is installed, and jp11 and jp12 have shunts across pins 1-2. 2) with its output disabled, set the dc power supply to +3.3v. connect the power supply to the +3.3v (through an ammeter if desired) and gnd1 termi- nals on the ev kit. if available, set the current limit to 500ma. 3) with its output disabled, set the second dc power supply to +5v. connect the power supply to the +5v (through an ammeter if desired) and gnd1 ter- minals on the ev kit. if available, set the current limit to 100ma. 4) with its output disabled, set both outputs of the dual- output dc power-supply voltages to +3v. connect one of the outputs to the tp1 terminal and connect the other output to the if_agc terminal. 5) with its output disabled, set the rf signal generator to a 55.25mhz frequency and a -80dbm power level. connect the output of the rf signal generator to the sma connector labeled rfin on the evalua- tion board. 6) connect a 25-pin parallel cable between the pc? parallel port and the MAX3540 evaluation board. 7) turn on the +3.3v v cc power supply, +5v v cc power supply, and the +3v dual-output gain-control power supply. the supply current from the +3.3v v cc supply should read approximately 200ma. the supply current from the +5v v cc supply should read approximately 20ma. be sure to adjust the power supply to account for any voltage drop across the ammeter. 8) install and run the MAX3540 control software. software is available for download on the maxim website at www.maxim-ic.com/evkitsoftware. 9) load the default register settings from the control software by clicking edit: load defaults. 10) connect the sma connector labeled if_out on the evaluation board to a spectrum analyzer or to an oscilloscope. 11) enable the rf signal generator? output. 12) set the center frequency of the rf spectrum analyz- er to the if frequency set on the control software. check the output. gain adjustment calculations add an additional 6db to the voltage gain to account for the 2:1 transformer on the output. add another 3.96db to the voltage gain to account for the minimum loss pad (r11 and r10) on the input. when measuring noise figure, account for 5.7db power loss of the mini- mum loss pad. an anti-aliasing filter is provided on the if output (c21, c25?29, c31, c35, l9, l11). the passband of this fil- ter is 6mhz centered at the if frequency of 44mhz, and is designed for a 200 termination. anti-aliasing filter requirements vary depending on application; the filter architecture and component values are provided as general guidelines only. layout considerations the MAX3540 ev kit serves as a guide for pcb layout. keep rf signal lines as short as possible to minimize losses and radiation. use controlled impedance on all high-frequency traces. the exposed pad must be sol- dered evenly to the board? ground plane for proper operation. use abundant vias beneath the exposed pad for maximum heat dissipation. use abundant ground vias between rf traces to minimize undesired coupling. to minimize coupling between different sections of the ic, the ideal power-supply layout is a star configuration, which has a large decoupling capacitor at the central v cc node. the v cc traces branch out from this node, with each trace going to separate v cc pins of the MAX3540. each v cc pin must have a bypass capacitor with a low impedance to ground at the frequency of interest. do not share ground vias among multiple con- nections to the pcb ground plane. MAX3540 evaluation kit 4 _______________________________________________________________________________________
evaluates: MAX3540 MAX3540 evaluation kit _______________________________________________________________________________________ 5 figure 1. ev kit schematic
evaluates: MAX3540 MAX3540 evaluation kit 6 _______________________________________________________________________________________ figure 2. MAX3540 ev kit pcb layout?omponent placement guide
evaluates: MAX3540 MAX3540 evaluation kit _______________________________________________________________________________________ 7 figure 3. MAX3540 ev kit pcb layout?rimary component side
evaluates: MAX3540 MAX3540 evaluation kit 8 _______________________________________________________________________________________ figure 4. MAX3540 ev kit pcb layout?nner layer 2
evaluates: MAX3540 MAX3540 evaluation kit _______________________________________________________________________________________ 9 figure 5. MAX3540 ev kit pcb layout?nner layer 3
evaluates: MAX3540 MAX3540 evaluation kit 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. 10 __________________ maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2008 maxim integrated products is a registered trademark of maxim integrated products, inc. figure 6. MAX3540 ev kit pcb layout?econdary component side
|
