19-2509; Rev 0; 7/02 MAX2116/MAX2118 Evaluation Kits Features ♦ Easy Evaluation of the MAX2116/MAX2118 ♦ 4.75V to 5.25V Single-Supply Operation ♦ Jumpers for Digital Power Control ♦ All Critical Peripheral Components Included ♦ PC Control Software (Available at www.maxim-ic.com) Ordering Information PART TEMP RANGE o o IC PACKAGE MAX2116EVKIT 0 C to +85 C 40 QFN MAX2118EVKIT 0oC to +85oC 40 QFN Component List DESIGNATION QTY DESCRIPTION C4, C6 2 22pF ±5% capacitors Murata GRP1555C1H220J C7, C26, C27 3 Open C8 1 1000pF capacitor Murata GRP155R71H102K C9, C10 2 0.1µF ±10% capacitors Murata GRP155R61A104K C11, C12, C14, C15, C21, C28, C30 7 C13, C18 DESIGNATION QTY C32, C33 2 100pF ±5% capacitors Murata GRM1885C1H101J J1, J3 2 SMA connectors, edge mount, round contact EFJohnson 142-0701-801 J2, J4, J8 3 Open J5 1 RF connector Mouser ME161-5371 1000pF ±10% capacitors Murata GRM188R71H102K J6, J7 2 Test points Digi-Key 5000K-ND 2 0.01µF ±10% capacitors Murata GRM188R71H103K J10 1 DB25 connector, right angle, male AMP 747238-4 Digi-Key A2098 C16 1 100µF ±5% capacitor Panasonic EEVHA0J101WR JP1 1 2-pin header Digi-Key S9000-ND C17, C22 2 0.22µF ±10% capacitors Murata GRM188R71A224K R1, R3, R20, R23 4 1kΩ ±1% resistors C19 1 0.1µF ±10% capacitor Murata GRM188R71C104K R2, R4 2 1kΩ ±1% resistors (MAX2118), open (MAX2116) C20 1 3300pF ±10% capacitor Murata GRM188R71H332K 1 C23, C25 2 330pF ±5% capacitors Murata GRM188R71H331K If J5 is 50Ω SMA connector, use 86.6Ω ±1% resistor; if J5 is 75Ω F-connector, leave open C24 1 39pF ±5% capacitor Murata GRM1885C1H390J 1 1 10µF ±10% capacitor AVX TAJC106K016 If J5 is 50Ω SMA connector, use 43.2Ω ±1% resistor; if J5 is 75Ω F-connector, use 0Ω ±1% resistor C29 R5 R6 DESCRIPTION ________________________________________________________________ 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. Evaluate: MAX2116/MAX2118 General Description The MAX2116/MAX2118 evaluation kits (EV kits) simplify evaluation of the MAX2116/MAX2118 complete DBS direct-conversion tuner ICs. They enable testing of the devices’ performance and require no additional support circuitry. The EV kits’ signal inputs and outputs use SMA and F-type connectors to facilitate the connection of RF/cable test equipment. MAX2116/MAX2118 Evaluation Kits Evaluate: MAX2116/MAX2118 Component List (continued) DESIGNATION QTY R7, R13, R21 3 2.21kΩ ±1% resistors DESCRIPTION R8, R14 2 150Ω ±1% resistors R9, R12 2 10kΩ ±1% resistors Quick Start The MAX2116/MAX2118 EV kits are fully assembled and factory tested. Follow the instructions in the Connections and Setup section for proper device evaluation. Test Equipment Required R10 1 0Ω ±1% resistor R11, R16, R22 3 Open This section lists the recommended test equipment needed to verify operation of the MAX2116/MAX2118. It is intended as a guide, and substitutions are possible: R15 1 75Ω ±1% resistor • R17 1 1kΩ ±1% resistor R18 1 20kΩ ±1% resistor One RF signal generator capable of delivering 5dBm of output power at the operating frequency (HPE4433B or equivalent) R19 1 4.7Ω ±5% resistor • TP1, TP2 2 Open One RF power sensor capable of handling 20dBm of output power at the operating frequency (HP 8482A or equivalent) TP3, TP4, TP5, TP7–TP10 7 Test points Digi-Key 5000K-ND • U1 1 MAX2116UGL One RF power meter capable of measuring 20dBm of output power at the operating frequency (HP 437B or equivalent) U2 1 TI SN74LV07ADR, Digi-Key 296-3764-1-ND • • Two power supplies capable of 500mA at 5V 1 4MHz Crystal Citizen America HCM49-4.000MABJT, Digi-Key 300-6103-1-ND, Pletronics SM42306-4M An RF spectrum analyzer that covers the MAX2116/ MAX2118 operating frequency range, as well as a few harmonics (FSEB20, for example) • SMA cables • One SMA 20dB pad None 1 MAX2116/MAX2118 EV kit circuit board, rev 2 • (Optional) An ammeter for measuring the supply current None 1 MAX2116/MAX2118 EV kit data sheet • (Optional) A network analyzer (HP 8753D, for example) to measure small-signal return loss and gain None 1 MAX2116/MAX2118 data sheet • (Optional) A digital oscilliscope (TDS 3014, for example) • An F-connector to SMA adapter and matching PAD • A PC loaded with control software Y1 Component Suppliers SUPPLIERS 2 PHONE FAX AVX 843-448-9411 843-448-7139 www.avxcorp.com WEBSITE Digi-Key 800-344-4539 218-681-3380 www.digikey.com Murata Electronics 770-436-1300 770-436-3030 www.murata.com Panasonic 800-833-9626 — www.panasonic.com Texas Instruments 800-336-5236 — www.ti.com _______________________________________________________________________________________ MAX2116/MAX2118 Evaluation Kits Note on MAX2118: All power levels specified in this EV kit description refer to single-ended measurements. Connections and Setup This section provides a step-by-step guide to operating the EV kit and testing the device’s function. Do not turn on the DC power or RF signal generators until all connections are made: 1) Verify that all jumpers are in place. 2) Connect the PC to the EV kit using the parallel cable. 3) Connect a DC power supply set to +5V (through an ammeter, if desired) to the VCC and GND terminals on the EV kit. Set the current limit to 300mA. Do not turn on the supply. 4) Connect the second DC power supply set to 0.75V (max RF gain) to GC1 (TP7). Set the current limit to 10mA. Do not turn on the supply. 5) Connect an RF signal generator to the RFIN connector. Use a 75Ω to 50Ω adapter if necessary. Do not turn on the generator’s output. 6) Connect the I or Q output to a spectrum analyzer or a digital oscilloscope. If using a spectrum analyzer or an oscilloscope in 50Ω mode, insert a DC block to protect the analyzer from damage. 7) Turn on the DC supplies. The 5V supply should read approximately 190mA. The 0.75V supply should be less than 1mA. 8) Open the MAX2116/MAX2118 software. The software opens in either the MAX2116 or MAX2118 mode. You can change to the appropriate part under the Option Menu: “Select EVkit type: MAX2116 or MAX2118”. 9) Click on the Synthesizer tab and configure the following: a) Ref = 4 b) R Divider = 4 (This sets the comparison frequency to 1MHz when using the on-board 4MHz crystal) c) Calibrate VCOs by clicking the “VCO Cal” button. d) Check “Auto Div Select” and “Auto Band Select” (This allows the software to pick the appropriate divider (div by 2 or div by 4) and to select the appropriate VCO for the entered LO frequency.) e) Enter the desired LO frequency 10) Select the Base tab and set the following: a) Gain Control 2 = 0 (max baseband gain) b) M Divide = 2 and FDAC = 127 (max baseband filter bandwidth) c) If using the MAX2118, select the desired baseband peak-to-peak output under the “Drive Level” box (1VP-P or 590mVP-P). 11) Set the RF generator’s output power to approximately -65dBm. Activate the RF generator’s output and select the desired CW input frequency so that the generator’s frequency is 5MHz higher than the frequency set in Step 9d. This creates a single 5MHz tone at the baseband output ports. 12) Set the spectrum analyzer: CF = 5MHz, Span = 200kHz, RBW = 1kHz, and VBW = 1kHz. Or, using an oscilloscope, observe a tone at 5MHz. Adjust the RF power to obtain the proper output levels as specified in the “Measurement Corrections” section of this procedure. Analog Gain Control (GC1) Test: 1) Adjust the power supply connected to TP7 (GC1) to 0.75V (max RF gain). 2) Ensure that the baseband gain setting is set for decimal 0 (max baseband gain). 3) Set the RF signal generator’s frequency to 5MHz higher than the desired LO frequency and its input power to -65dBm. (The signal generator power might need to be adjusted to produce a full-scale baseband output level.) _______________________________________________________________________________________ 3 Evaluate: MAX2116/MAX2118 Measurement Corrections Corrections on both the input and the output are necessary for accurate measurements. On the MAX2116/ MAX2118 EV kit boards, F-connectors (75Ω impedance) are mounted at the RFIN port. To use 50Ω test equipment, an adapter is needed. Thus, the input power must be adjusted to compensate for the adapter loss (typically 5.7dB for a “min-loss” pad). At the baseband output ports, there are 1kΩ resistors in series with the output pins, which lead to 26.4dB loss if 50Ω test equipment is used. Therefore, for the MAX2116 EV kit, full-scale output (800mVP-P) corresponds to -24.4dBm. For the MAX2118 EV kit, when DL = 1, full-scale output (1VP-P, differential) corresponds to -28.4dBm on each output port, while for DL = 0, fullscale output (590mVP-P, differential) corresponds to -33dBm on each output port. When connecting to 50Ω test equipment, always ensure that DC blocking is used so that I/Q output bias networks are not disrupted. Evaluate: MAX2116/MAX2118 MAX2116/MAX2118 Evaluation Kits 4) Put a delta marker on the desired tone and increase the GC1 voltage. 5) The gain delta is greater than 60dB. Digital Gain Control (GC2) Test: 1) Adjust the power supply connected to TP7 to 0.75V (max RF gain). 2) Set the baseband gain control to 0 (max baseband gain). 3) Set the RF signal generator’s frequency to 5MHz higher than the desired LO frequency and its input power to -65dBm. (The signal generator power might need to be adjusted to produce a full-scale baseband output level.) 4) Put a delta marker on the desired tone and increase the baseband gain control to 31. 5) The gain delta is larger than 20dB. Lowpass Filters Test: 1) Adjust the power supply connected to TP7 to 0.75V and GC2 to decimal 0 (max baseband gain). 3) Set the spectrum analyzer to measure from 0 to 50MHz and put a delta marker on the desired tone. (Adjust GC1 level for a full-scale baseband output level.) 4) While monitoring the 10MHz tone on the spectrum analyzer, decrease FDAC. 5) Note the decrease in filter-noise-floor bandwidth. When the computed 3dB BW equals 10MHz, the desired tone is attenuated by more than 1dB. Layout Issues A good PC board is an essential part of an RF circuit design. The EV kit PC board can serve as a guide for laying out a board using the MAX2116/MAX2118. Keep traces carrying RF signals as short as possible to minimize radiation and insertion loss. Use impedance control on all RF signal traces. The VCC node on the PC board should have decoupling capacitors to the closest ground. Refer to the Layout section of the MAX2116/MAX2118 data sheet for more information. 2) Set the RF generator to -65dBm and 10MHz higher than the desired LO frequency. 4 _______________________________________________________________________________________ _______________________________________________________________________________________ C30 1000pF J5 VCC TP7 R6 SEE NOTE R15 75Ω R5 SEE NOTE C29 10µF VCC R16 OPEN R17 1kΩ C8 1000pF NOTE: FOR SMA CONNECTOR, R5 = 86.6Ω, R6 = 43.2Ω, FOR F-CONNECTOR, R5 = OPEN, R6 = 0Ω RF SMA (OR F-CONNECTOR) TP8 J7 J6 C6 22pF C4 22pF VCC 1 R19 4.7Ω 10 9 8 7 6 5 4 3 2 C14 1000pF C7 OPEN C9 0.1µF C11 1000pF GND N.C. VREG1 GCI N.C. RFIN+ RFIN- VCCRF1 IDC+ IDC- 11 C10 0.1µF C15 1000pF R1 1kΩ SMA4 + J1 37 VCC 40 QDCN.C. 39 QDC+ 38 VCCRF2 VCCVCO 13 VCCLO 12 C16 100µF U1 TP9 C17 0.22µF R3 1kΩ R4 OPEN (MAX2116) 1kΩ (MAX2118) J3 SMA4 MAX2116 (MAX2118) R2 OPEN (MAX2116) 1kΩ (MAX2118) 15 IOUT+ 14 36 IOUTAS2 C20 3300pF R21 2.21kΩ R20 1kΩ 33 J4 C19 0.1µF TP10 QOUT- J2 16 LOFTL 35 VCCBB VTUNE 34 QOUT+ CPOUT 17 32 19 IFLT 18 ASO VCCCPX SMA4 OPEN 31 VCC XTAL+ XTAL- CNTOUT XTALOUT N.C. ASI SDA VREG2 SCL VCCOIG N.C. CFLT R18 20kΩ 21 R10 OΩ VCC C24 39pF Y1 C13 0.01µF C22 0.22µF C23 330pF C21 1000pF C25 330pF TP5 22 23 24 25 26 27 28 29 30 C12 1000pF C18 0.01µF VCC 20 C26 OPEN R22 OPEN R23 1kΩ R11 OPEN C33 TP4 100pF R13 2.21kΩ R7 2.21kΩ TP3 SMA J8 R14 150Ω TP2 OPEN C27 OPEN OPEN VCCA C32 100pF R8 150Ω 5 8 U2-E 1 12 9 6 74LV07A U2-C 74LV07A U2-D 74LV07A U2-F 74LV07A U2-A 1 VCCA R9 10kΩ 10 74LV07A 13 2 3 74LV07A 11 4 JPI U2-B 2 VCC J10-24 J10-23 J10-22 J10-21 J10-20 J10-19 J10-18 TP1 OPEN J10-10 J10-2 J10-11 J10-3 R12 10kΩ C28 1000pF Evaluate: MAX2116/MAX2118 SMA4 OPEN MAX2116/MAX2118 Evaluation Kits Figure 1. MAX2116/MAX2118 EV Kit Schematic 5 Evaluate: MAX2116/MAX2118 MAX2116/MAX2118 Evaluation Kits 1.0" Figure 2. MAX2116/MAX2118 EV Kit Component Placement Guide 6 _______________________________________________________________________________________ MAX2116/MAX2118 Evaluation Kits 1.0" Figure 3. MAX2116/MAX2118 EV Kit Component Placement Guide—Component Side Figure 4. MAX2116/MAX2118 EV Kit Component Placement Guide—Solder 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 7 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. Evaluate: MAX2116/MAX2118 1.0"