19-2510; Rev 0; 7/02 MAX2900–MAX2904 Evaluation Kits The EV kits provide 50Ω SMA connectors for IF inputs and RF outputs. All critical peripheral components are included, and all EV kits are fully assembled and tested. Ordering Information TEMP RANGE IC PACKAGE MAX2900EVKIT PART -40°C to +85°C 3 × 4 UCSP™ MAX2901EVKIT* -40°C to +85°C 3 × 4 UCSP MAX2902EVKIT -40°C to +85°C 3 × 4 UCSP MAX2903EVKIT -40°C to +85°C 3 × 4 UCSP MAX2904EVKIT -40°C to +85°C *Please order the MAX2900EVKIT. 3 × 4 UCSP Features ♦ Single-Supply Operation ♦ 50Ω SMA Connectors on all IF and RF Ports ♦ Baluns Included for Single-Ended RF Output ♦ Easy Evaluation of BPSK, OOK, ASK, and FM Modulations ♦ Digital Control Synthesizer Programming (MAX2900) ♦ Four Modes of Operation Shutdown Synthesizer Transmit Reference Only UCSP is a trademark of Maxim Integrated Products, Inc. Component Suppliers SUPPLIERS PHONE FAX WEBSITE AVX 843-448-9411 843-448-7139 Coilcraft 800-322-2645 847-639-1469 www.coilcraft.com Murata 770-436-1300 770-436-3030 www.murata.com Taiyo Yuden 800-368-2496 408-573-4159 www.t-yuden.com Toko 847-297-0070 847-699-7864 www.tokoam.com www.avxcorp.com Note: Please indicate that you are using the MAX2900 when contacting these component suppliers. Component List MAX2900 EV Kit DESIGNATION QTY DESCRIPTION C1 1 Open C2 1 3pF ±0.1pF, 50V ceramic capacitor (0603) Murata GRM39C0G030B050AD C3 1 270pF ±10%, 50V ceramic capacitor (0603) Murata GRM188R71H271KD01 C4, C8 2 0.01µF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R103K050AD Murata GRM188R71E103KA01 Taiyo Yuden UMK107B103KZ-B DESIGNATION QTY C5, C25, C26, C28 4 C6, C7, C9, C10, C27 5 C11 1 DESCRIPTION 1000pF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R102K050AD Murata GRM188R71H102KA01 Taiyo Yuden UMK107B102KZ-B 100pF ±5%, 50V ceramic capacitors (0603) Murata GRM39C0G101J050AD Murata GRM1885C1H101JA01 100pF ±5% ceramic capacitor (0402) Murata GRM36C0G101J050AQ Murata GRP1555C1H101J ________________________________________________________________ Maxim Integrated Products 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. 1 Evaluate: MAX2900–MAX2904 General Description The MAX2900–MAX2904 evaluation kits (EV kits) simplify testing of the MAX2900–MAX2904. The EV kits allow evaluation of the MAX2900–MAX2904’s BPSK, OOK, ASK, and FM modulations; and fully integrated VCO, modulation filter, integrated frequency synthesizer, and power-management features. Evaluate: MAX2900–MAX2904 MAX2900–MAX2904 Evaluation Kits Component List MAX2900 EV Kit (continued) DESIGNATION QTY C12 1 C13, C14 2 C15, C16 2 C19, C20, C37 3 C21, C31, C32 C23 1 C24 1 C29 1 C30 1 C33, C34 2 C35 1 C36 1 C38, C39 2 3 2 DESCRIPTION 0.01µF ±10% ceramic capacitor (0402) Murata GRM36X7R103K016A Murata GRP155CR71C103K 10µF ±20%, 10V tantalum capacitors, case A AVX TAJA106K010R 3.3pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G3R3B050AD Open 15pF ±5%, 50V ceramic capacitors (0603) Murata GRM39C0G150J50 Murata GRM1885C1H150JZ01 22pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G220J050AD Murata GRM1885C1H220JZ01 10pF ±0.1pF, 50V ceramic capacitor (0603) Murata GRM39C0G100B050AD 0.1µF ±10%, 16V ceramic capacitor (0603) Murata GRM39X7R104K016AD Murata GRM188R71C104KA01D Taiyo Yuden EMK107BJ104KA 10µF ±20%, 10V tantalum capacitor, case B AVX TAJB106M010R 1.6pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G1R6B050AD Murata GRM1885C1H1R6B Open 22µF ±10%, 10V tantalum capacitor, case B AVX TAJB226K010R 1.8pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G1R8B050AD Murata GRM1885C1H1R8B DESIGNATION QTY DIVOUT, GND, LD, TUNE, VASK, VCC JU1, JU2, JU4, JU6, JU7, JU9 6 DESCRIPTION Test points Mouser 151-203 JU3, JU8 2 L1, L2 2 L3, L4 2 L5 1 L6, L7 2 L8, L9 R1 R2 R3 R4 R5 R6, R7, R12, R13, R14 R8 R9 R10, R11 R15 2 1 1 1 1 1 Jumpers, SIP3, 3-pin headers Digi-Key S1012-36-ND or equivalent Jumpers, SIP2, 2-pin headers Digi-Key S1012-36-ND or equivalent 11nH ±5% inductors (0603) Coilcraft 0603CS-11NXJBC 12nH ±5% inductors (0603) Coilcraft 0603CS-12NTJBC 8.2nH ±5% chip inductor (0603) Murata LQG11A8N2J00 15nH ±2% chip inductors (0603) Murata LQP11A15NG00 Murata LQP18MN15NG00 Open 0Ω resistor (0603) 51kΩ ±5% resistor (0603) 1.6kΩ ±5% resistor (0603) 10kΩ ±5% resistor (0603) 68kΩ ±5% resistor (0603) 5 Open 1 1 2 1 REF, RF, VCO 3 T1 1 U1* Y1 1 1 22kΩ ±5% resistor (0603) 0Ω resistor (0603) 0Ω resistors (0402) 10Ω resistor (0402) SMA connectors, PC edge mount EFJohnson 142-0701-801 Digi-Key J502-ND Balun Toko B4F (617DB-1018) MAX2900EGI Open None 8 Shunts, JU1–JU4, JU6–JU9 Digi-Key S9000-ND or equivalent None None None 1 1 1 MAX2900 PC board MAX2900 data sheet MAX2900 EV kit data sheet 6 *Supplied by Maxim _______________________________________________________________________________________ MAX2900–MAX2904 Evaluation Kits DESIGNATION QTY C1, C35 2 C2 1 C3 1 C4, C8 2 C5, C25, C26, C28 4 C6, C7, C9, C10, C27 5 C11, C19 C12 2 1 C13, C14 2 C15, C16 2 C20, C37 2 C21, C31, C32 3 C23 1 C24 1 DESCRIPTION DESIGNATION QTY Open 82pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G820J050AD Murata GRM1885C1H820J 1nF ±5%, 25V ceramic capacitor (0603) Murata GRM39X7R102J025AD GRM188R71H102J 0.01µF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R103K050AD Murata GRM188R71E103KA01 Taiyo Yuden UMK107B103KZ 1000pF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R102K050AD Murata GRM188R71E102KA01 Taiyo Yuden UMK107B102KZ-B 100pF ±5%, 50V ceramic capacitors (0603) Murata GRM39C0G101J050AD 100pF ±10%, 50V ceramic capacitors (0402) Murata GRM36C0G101K50AD Murata GRP1555C1H101K 0.01µF ±10% ceramic capacitor (0402) Murata GRM36X7R103K016A Murata GRP155CR71C103K 10µF ±20%, 16V tantalum capacitors, case A TAJA106M016R 3.3pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G3R3B050AD 1.2pF ±0.1pF, 50V ceramic capacitors GRM36C0G1R2B050AD GRP1555C1H1R2B 15pF ±5%, 50V ceramic capacitors (0603) Murata GRM39C0G150J50 Murata GRM1885C1H150JZ01 22pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G220J050AD Murata GRM1885C1H220JZ01 10pF ±0.1pF, 50V ceramic capacitor (0603) Murata GRM39C0G100B050AD C29 1 C30 1 C33, C34 2 C36 1 C38, C39 2 DIVOUT, GND, LD, TUNE, VASK, VCC JU1, JU2, JU4, JU6, JU7, JU9 JU1–JU4, JU6–JU9 6 DESCRIPTION 0.1µF ±10%, 16V ceramic capacitor (0603) Murata GRM39X7R104K016AD Murata GRM188R71C104KA01D Taiyo Yuden EMK107BJ104KA 10µF ±20%, 10V tantalum capacitor, case B AVX TAJB106M010R 1.5pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G1R5B050AD Murata GRM1885C1H1R5B 22µF ±10%, 10V tantalum capacitor, case B AVX TAJB226K010R 1.8pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G1R8B050 Murata GRM1885C1H1R8B Test points Mouser 151-203 JU3, JU8 2 L1, L2 2 L3, L4 2 L5 1 L6, L7 2 L8, L9 2 R1, R9 R2 R3 R4 R5 2 1 1 1 1 Jumpers, SIP3, 3-pin headers Digi-Key S1012-36-ND or equivalent Shunts Digi-Key S9000-ND or equivalent Jumpers, SIP2, 2-pin headers Digi-Key S1012-36-ND or equivalent 11nH ±5% inductors (0603) Coilcraft 0603CS-11NXJBC 12nH ±5% inductors (0603) Coilcraft 0603CS-12NXJBC 8.2nH ±5% inductor (0603) Murata LQG11A8N2J00 15nH ±5% inductors (0603) Murata LQG11A15NJ00 Murata LQG18MN15NJ00 9.1nH ±0.1nH inductors (0402) Murata LQP10A9N1B00 Murata LQP15MN9N1B00 0Ω ±5% resistors (0603) 51kΩ ±5% resistor (0603) 1.6kΩ ±5% resistor (0603) 2.7kΩ ±5% resistor (0603) 68kΩ ±5% resistor (0603) R6, R7, R10–R14 7 Open 6 8 _______________________________________________________________________________________ 3 Evaluate: MAX2900–MAX2904 Component List MAX2902 EV Kit Evaluate: MAX2900–MAX2904 MAX2900–MAX2904 Evaluation Kits Component List MAX2902 EV Kit (continued) DESIGNATION QTY R8 R15 1 1 REF, RF, VCO 3 T1 1 U1* Y1 None None None 1 1 1 1 1 DESCRIPTION 22kΩ ±5% resistor (0603) 10Ω resistor (0402) SMA connectors, PC edge mount EFJohnson 142-0701-801 Digi-Key J502-ND Balun Toko B4F (617DB-1018) MAX2902EGI Open MAX2902 PC board MAX2902 data sheet MAX2902 EV kit data sheet *Supplied by Maxim Component List MAX2903 EV Kit DESIGNATION QTY C1, C35 2 4 C2 1 C3 1 C4, C8 2 C5, C25, C26, C28 4 C6, C7, C9, C10, C27 5 C11, C19 2 C12 1 C13, C14 2 DESCRIPTION Component List MAX2903 EV Kit (continued) DESIGNATION QTY C15, C16 2 C20, C37 2 C21 1 C23 1 C24 1 C29 1 C30 1 C31, C32 2 C33, C34 2 C36 1 C38, C39 2 Open 82pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G820J050AD Murata GRM1885C1H820J 1nF ±5%, 25V ceramic capacitor (0603) Murata GRM39C0G102J025AD 0.01µF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R103K050AD Murata GRM188R71E103KA01 Taiyo Yuden UMK107B103KZ 1000pF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R102K050AD Murata GRM188R71E102KA01 Taiyo Yuden UMK107B102KZ-B 100pF ±5%, 50V ceramic capacitors (0603) Murata GRM39C0G101J050AD 100pF ±5%, 50V ceramic capacitors (0402) Murata GRM36C0G101J50AD Murata GRP1555C1H101J 0.01µF ±10% ceramic capacitor (0402) Murata GRM36X7R103K016A Murata GRP155CR71C103K 10µF ±20%, 16V tantalum capacitors, case A TAJA106M016R DIVOUT, GND, LD, TUNE, VASK, VCC JU1–JU4, JU6–JU9 JU1, JU2, JU4, JU6, JU7, JU9 6 8 6 DESCRIPTION 1.2pF ±5%, 50V ceramic capacitors (0603) Murata GRM39C0G1N2J050AD 1.2pF ±0.1pF, 50V ceramic capacitors (0402) GRM36C0G1R2B050AD GRP1555C1H1R2B 6.8pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G6R8J050 Murata GRM1885C1H6R8J 22pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G220J050AD Murata GRM1885C1H220JZ01 10pF ±0.1pF, 50V ceramic capacitor (0603) Murata GRM39C0G100B050AD 0.1µF ±10%, 16V ceramic capacitor (0603) Murata GRM39X7R104K016AD Murata GRM188R71C104KA01D Taiyo Yuden EMK107BJ104KA 10µF ±20%, 10V tantalum capacitor, case B AVX TAJB106M010R 1.8pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G040B050AD 0.5pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G0R5C050AD 22µF ±10%, 10V tantalum capacitor, case B AVX TAJB226K010R 1.2pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G1R2B050 Murata GRM1885C1H1R2B Test points Mouser 151-203 Shunts Digi-Key S9000-ND or equivalent Jumpers, SIP3, 3-pin headers Digi-Key S1012-36-ND or equivalent _______________________________________________________________________________________ MAX2900–MAX2904 Evaluation Kits DESIGNATION QTY DESCRIPTION JU3, JU8 2 L1, L2 2 L3, L4 2 L5, L6, L7 3 L8, L9 2 R1, R9 R2 R3 R4 R5 2 1 1 1 1 Jumpers, SIP2, 2-pin headers Digi-Key S1012-36-ND or equivalent 12nH ±5% inductors (0603) Coilcraft 0603CS-12NXJBC 27nH ±5% inductors (0603) Coilcraft 0603CS-24NXJBC 33nH ±5% chip inductors (0603) Coilcraft 0603CS-33NXJB 10nH ±2% inductors (0402) Murata LQP10A10NG00 0Ω ±5% resistors (0603) 51kΩ ±5% resistor (0603) 1.6kΩ ±5% resistor (0603) 2.7kΩ ±5% resistor (0603) 68kΩ ±5% resistor (0603) R6, R7, R10, R11, R12 5 Open R8 R13 R14 R15 1 1 1 1 REF, RF, VCO 3 T1 1 U1* Y1 None None None 1 1 1 1 1 30kΩ ±5% resistor (0603) 0Ω ±5% resistor (0402) 5.1kΩ resistor (0402) 10Ω ±1% resistor (0402) SMA connectors, PC edge mount EFJohnson 142-0701-801 Digi-Key J502-ND Balun Toko B4F (617DB-1018) MAX2903EGI Open MAX2903 PC board MAX2903 data sheet MAX2903 EV kit data sheet *Supplied by Maxim Component List MAX2904 EV Kit DESIGNATION QTY C1, C35 2 C2 1 C3 1 Component List MAX2904 EV Kit (continued) DESIGNATION QTY C4, C8 2 C5, C25, C26, C28 4 C6, C7, C9, C10, C27 5 C11, C19 2 C12 1 C13, C14 2 C15, C16 2 C20, C37 2 C21 1 C23 1 C24 1 DESCRIPTION Open 82pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G820J050AD Murata GRM1885C1H820J 1nF ±5%, 25V ceramic capacitor (0603) Murata GRM39C0G102J025AD DESCRIPTION 0.01µF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R103K050AD Murata GRM188R71E103KA01 Taiyo Yuden UMK107B103KZ 1000pF ±10%, 50V ceramic capacitors (0603) Murata GRM39X7R102K050AD Murata GRM188R71E102KA01 Taiyo Yuden UMK107B102KZ-B 100pF ±5%, 50V ceramic capacitors (0603) Murata GRM39C0G101J050AD 100pF ±5%, 50V ceramic capacitors (0402) Murata GRM36C0G101J50AD Murata GRP1555C1H101J 0.01µF ±10% ceramic capacitor (0402) Murata GRM36X7R103K016A Murata GRP155CR71C103K 10µF ±20%, 16V tantalum capacitors, case A TAJA106M016R 1.2pF ±0.25pF, 50V ceramic capacitors (0603) Murata GRM39C0G1N2J050AD 1.2pF ±0.1pF, 50V ceramic capacitors (0402) Murata GRM36C0G1R2B050AD Murata GRP1555C1H1R2B 6.8pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G6R8J050 Murata GRM1885C1H6R8J 22pF ±5%, 50V ceramic capacitor (0603) Murata GRM39C0G220J050AD Murata GRM1885C1H220JZ01 10pF ±0.1pF, 50V ceramic capacitor (0603) Murata GRM39C0G100B050AD _______________________________________________________________________________________ 5 Evaluate: MAX2900–MAX2904 Component List MAX2903 EV Kit (continued) Evaluate: MAX2900–MAX2904 MAX2900–MAX2904 Evaluation Kits Component List MAX2904 EV Kit (continued) DESIGNATION QTY C29 1 C30 1 C31, C32 2 C33, C34 2 C36 C38, C39 DIVOUT, GND, LD, TUNE, VASK, VCC JU1, JU2, JU4, JU6, JU7, JU9 JU1–JU4, JU6–JU9 1 2 6 6 8 JU3, JU8 2 L1, L2 2 DESCRIPTION 0.1µF ±10%, 16V ceramic capacitor (0603) Murata GRM39X7R104K016AD Murata GRM188R71C104KA01D Taiyo Yuden EMK107BJ104KA 10µF ±20%, 10V tantalum capacitor, case B AVX TAJB106M010R 1.8pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G040B050AD 0.5pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G0R5C050AD 22µF ±10%, 10V tantalum capacitor, case B AVX TAJB226K010R 1.2pF ±0.1pF, 50V ceramic capacitors (0603) Murata GRM39C0G1R2B050 Murata GRM1885C1H1R2B Test points Mouser 151-203 Jumpers, SIP3, 3-pin headers Digi-Key S1012-36-ND or equivalent Shunts Digi-Key S9000-ND or equivalent Jumpers, SIP2, 2-pin headers, Digi-Key S1012-36-ND or equivalent 12nH ±5% inductors (0603) Coilcraft 0603CS-12NXJBC Quick Start The MAX2900–MAX2904 EV kits are fully assembled and factory tested. Follow the instructions in the Connections and Setup section. Test Equipment Required This section lists the recommended test equipment to verify the operation of the MAX2900–MAX2904. It is intended as a guide only, and substitutions may be possible. • One RF signal generator capable of delivering -7dBm of output power in the 10MHz to 50MHz frequency range (HP 8648A or equivalent) for the PLL reference frequency. DESIGNATION QTY DESCRIPTION L3, L4 2 L5, L6, L7 3 L8, L9 2 R1, R9 R2 R3 R4 R5 R6, R7, R10–R14 R8 R15 2 1 1 1 1 27nH ±5% inductors (0603) Coilcraft 0603CS-24NXJBC 33nH ±5% chip inductors (0603) Coilcraft 0603CS-33NXJB 10nH ±2% inductors (0402) Murata LQP10A10NG00 0Ω ±5% resistors (0603) 51kΩ ±5% resistor (0603) 1.6kΩ ±5% resistor (0603) 2.7kΩ ±5% resistor (0603) 68kΩ ±5% resistor (0603) 7 Open 1 1 REF, RF, VCO 3 T1 1 U1* Y1 None None None 1 1 1 1 1 30kΩ ±5% resistor (0603) 10Ω ±1% resistor (0402) SMA connectors, PC edge mount EFJohnson 142-0701-801 Digi-Key J502-ND Balun Toko B4F (617DB-1018) MAX2904EGI Open MAX2904 PC board MAX2904 data sheet MAX2904 EV kit data sheet *Supplied by Maxim • An RF power meter capable of measuring 30dBm output power (HP 437B or equivalent) with an RF high-power sensor. • A vector signal analyzer (AG 89441 or equivalent) • An RF network analyzer (HP 8753E or equivalent) • A power supply that can provide 250mA at +5.0V (AG E3631A or equivalent) • Optionally, an additional voltage source for VCO tuning voltage • A 20dB RF attenuator • An arbitrary waveform generator (HP E4433B or equivalent) • An RF spectrum analyzer capable of measuring a 7GHz RF signal (Rohde and Schwarz FSEA20 or equivalent). 6 _______________________________________________________________________________________ MAX2900–MAX2904 Evaluation Kits JUMPER NAME DESCRIPTION MAX2900 MAX2901/ MAX2903 MAX2902/ MAX2904 1 1 1 EN 2 2 2 REFEN Reference Enable 3 3 3 MODIN BPSK Modulation Input OOK Modulation Input 4 4 4 OOKIN 6/7 — — D0/D1 — 6/7 6/7 VCO+/ VCO- Chip Enable Digital Synthesizer Programming Input VCO Output 8 8 8 REFOUT 9 — — D2 Digital Synthesizer Programming Input REF Output — 9 — DIV63 Digital Synthesizer Programming Input — — 9 N.C. Not Connected Connections and Setup Adjustments and Control This section provides step-by-step instructions for getting the EV kits up and running in all operation modes. Operation Modes The EV kits support four modes of operation: 1) Verify that shunts JU1, JU2, JU4, JU6, JU7, and JU9 are in place. • SHUTDOWN mode—EN = REFEN = low. (Shunt pins 2 and 3 of JU1, JU2). 2) Set the power supply to +4V and turn it off. • SYNTH mode—EN = REFEN = high, OOKIN = low. (Shunt pins 1 and 2 of JU1, JU2; shunt pins 2 and 3 of JU4). 3) Set the adjustable power supply to +2.1V and turn it off. 4) Connect the ground terminal to GND. 5) Connect the positive +4.0V terminal to VCC. • TRANSMIT mode—EN = REFEN = OOKIN = high. (Shunt pins 1 and 2 of JU1, JU2, JU4). 6) Connect the positive terminal of the adjustable power supply to VASK. • REFERENCE only mode—REFEN = high, EN = low. (Shunt pins 2 and 3 of JU1. Shunt pins 1 and 2 of JU2). 7) Set the IF generator to 14.56MHz and set the output level to 200mV. Keep the IF generator output off. See Table 1 for jumper selection. 8) Use an SMA cable to connect the output of the IF generator to the REFIN on the MAX2900–MAX2904 EV kits. 9) Use an SMA cable to connect the RFOUT to the input of the spectrum analyzer. Modulations The IC supports various modulation modes: • BPSK is obtained through the MODIN pin (JU3). • OOK is obtained digitally with the OOKIN pin (JU4). • ASK is obtained through the VASK pin. 10) Set the spectrum analyzer to view the output. • FM is imposed on the VCO or the reference. 11) Turn on all power supplies and enable the signal generator. Synthesizer Programming (MAX2900/MAX2901/MAX2903) The three pins D0, D1, D2 (JU6, JU7, and JU9) are used as digital entries to program the synthesizer division ratios (MAX2900). For MAX2901/MAX2903, pin DIV63 (JU9) is used to select the division ratio of 62 or 63. Refer to the MAX2900–MAX2904 data sheet for corresponding division ratios. 12) Measure the supply current. 13) Observe the RF output frequency displayed on the spectrum analyzer. 14) Measure the RF output power. 15) The RF output power should be approximately 23dBm after accounting for cable and connector loss. Modulation Filter and Power Management The RLPF input controls the modulation filter center frequency. Pins PWRSET and VASK are analog inputs _______________________________________________________________________________________ 7 Evaluate: MAX2900–MAX2904 Table 1. Jumper Description Evaluate: MAX2900–MAX2904 MAX2900–MAX2904 Evaluation Kits used to control the power of the transmitter. Changing the values of the resistors RRLPF and RPWRSET vary the modulation filter characteristics and output power level, respectively. Refer to the MAX2900–MAX2904 data sheet for details. Output Power Adjustment The MAX2900–MAX2904 EV kits are tuned for specific output powers. For example, the MAX2900 EV kit is tuned for 23dBm at a 4.5V supply voltage. If other output power levels are desired, the user must modify some EV kit components. This section, intended as a guide only, provides instructions for tuning the EV kits at different power levels. To achieve a different output power, modify RPWRSET (R8) first. This resistor sets the bias current, which also controls efficiency and output power. To decrease output power, increase the value of R8. For more information, refer to the MAX2900–MAX2904 data sheet. The output-matching network also must be changed to appropriate output power levels. For lower power levels, increase C15 and C16 capacitor values. To main- 8 tain the same LC filter corner frequency, change L3, L4, C33, and C34 accordingly. To achieve optimum performance, all component values must be tuned in the lab. Use the EV kit schematics as a guideline. 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 MAX2900–MAX2904. 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 MAX2900–MAX2904 data sheet for more information. _______________________________________________________________________________________ C30 10µF GND VCC C14 10µF TUNE C3 270pF C1 OPEN C29 0.1µF VCC 3 1 JU15 CUT HERE JU14 CUT HERE JU13 CUT HERE JU12 CUT HERE JU11 CUT HERE C13 10µF 1 VCC_PA VCC_DRV VCC_MOD VCC_VCO VCC_CP VCC_DIG 2 JU1 VCC JU2 2 C35 OPEN R1 0Ω VREG R3 1.6kΩ VCC 3 JU10 CUT HERE VCC_ VCO R2 51kΩ R4 10kΩ VGND VTUNE CPOUT 28 6 EN RPLF VCC1 VCC 3 2 1 JU4 7 REFEN C7 MODIN 100pF 8 JU3 C6 100pF R5 68kΩ 5 C5 1000pF 4 3 VREG C4 0.01µF 2 1 C2 3pF 3 VCC2 N.C./D2 26 2 25 MAX2900 U1 VASK C8 0.01µF R6 OPEN R7 OPEN LD 12 VCC4 24 LD 17 18 19 20 C24 10pF C10 100pF REF SMA R9 0Ω TP1 1 L2 11nH L1 11nH R14 OPEN R13 OPEN VCC_ DRV TEST1 15 VCC3 14 RF- 16 RF+ N.C./GND DIVOUT D1/VCO- OSC 21 DO/VCO+ 22 C23 Y1 22pF R12 OPEN R8 22kΩ PWRSET 13 REFIN 23 C26 1000pF VCC_ DIG JU8 JUMPER REFOUT C27 100pF VASK 11 C9 10 100pF VCC_ MOD VREG OOKIN 9 VCC5 27 1 C28 1000pF VCC_ DIG C25 1000pF C11 100pF R15 10Ω C31 15pF L9 OPEN L8 OPEN 2 VCC C16 3.3pF VCC_PA C12 0.01µF C15 3.3pF DIVOUT C36 C32 22µF 15pF R10 0Ω R11 0Ω 3 JU7 VCC 1 L4 12nH L5 8.2nH L3 12nH 3 1 2 C33 1.6pF JU6 VCC C20 OPEN C19 OPEN C37 OPEN C34 1.6pF 3 2 1 C39 1.8pF L7 15nH C38 1.8pF L6 15nH BALUN T1 C21 15pF 4 6 RF SMA VCO SMA Evaluate: MAX2900–MAX2904 JU9 MAX2900–MAX2904 Evaluation Kits Figure 1. MAX2900 EV Kit Schematic _______________________________________________________________________________________ 9 10 C30 10µF GND VCC C14 10µF TUNE C3 1nF C1 OPEN C29 0.1µF VCC 3 JU15 CUT HERE JU14 CUT HERE JU13 CUT HERE JU12 CUT HERE JU11 CUT HERE C13 10µF 1 VCC_PA VCC_DRV VCC_MOD VCC_VCO VCC_CP VCC_DIG 2 JU1 VCC JU2 2 C35 OPEN R1 0Ω VREG R3 1.6kΩ VCC 3 1 JU10 CUT HERE VCC_ VCO R2 51kΩ R4 2.7kΩ VCC 6 5 EN RPLF VCC1 VREG VGND VTUNE CPOUT 28 3 2 1 JU4 7 REFEN MODIN 8 JU3 C7 100pF C6 100pF R5 68kΩ C5 1000pF 4 C4 0.01µF 3 2 1 C2 82pF 3 N.C./D2 26 2 25 JU8 MAX2902 U1 REFOUT C27 100pF VASK C8 0.01µF R6 OPEN VCC2 VASK 11 C9 10 100pF VCC_ MOD VREG OOKIN 9 VCC5 27 1 C28 1000pF VCC_ DIG JU9 R7 OPEN LD 12 VCC4 24 LD C24 10pF 17 18 19 20 C10 100pF REF SMA R9 0Ω 1 TP1 L2 11nH L1 11nH R14 OPEN R13 OPEN VCC_ DRV TEST1 15 VCC3 14 RF- 16 RF+ N.C./GND DIVOUT D1/VCO- OSC 21 DO/VCO+ 22 C23 Y1 22pF R12 OPEN R8 22kΩ PWRSET 13 REFIN 23 C26 1000pF VCC_ DIG C25 1000pF C31 15pF JU7 L9 9.1nH L8 9.1nH 2 C16 3.3pF C11 100pF C15 3.3pF DIVOUT C36 C32 22µF 15pF R15 10Ω R10 OPEN R11 OPEN 3 1 VCC 3 1 L4 12nH 2 C33 1.5pF JU6 VCC C20 1.2pF C19 100pF L3 12nH VCC_PA L5 C12 8.2nH 0.01µF VCC C37 1.2pF C34 1.5pF 3 2 1 C39 1.8pF L7 15nH C38 1.8pF L6 15nH BALUN T1 C21 15pF 4 6 RF SMA SMA VCO Evaluate: MAX2900–MAX2904 MAX2900–MAX2904 Evaluation Kits Figure 2. MAX2902 EV Kit Schematic ______________________________________________________________________________________ C30 10µF GND VCC C14 10µF TUNE C3 1nF C1 OPEN C29 0.1µF VCC 3 1 JU15 CUT HERE JU14 CUT HERE JU13 CUT HERE JU12 CUT HERE JU11 CUT HERE C13 10µF 1 VCC_PA VCC_DRV VCC_MOD VCC_VCO VCC_CP VCC_DIG 2 JU1 VCC JU2 2 C35 OPEN R1 0Ω VREG R3 1.6kΩ VCC 3 JU10 CUT HERE VCC_ VCO R2 51kΩ R4 2.7kΩ VCC 6 5 EN RPLF VCC1 VREG VGND VTUNE CPOUT 28 3 2 1 JU4 7 REFEN MODIN 8 JU3 C7 100pF C6 100pF R5 68kΩ C5 1000pF 4 C4 0.01µF 3 2 1 C2 82pF 3 N.C./DIV3 26 2 25 JU8 MAX2903 U1 REFOUT C27 100pF VASK C8 0.01µF R6 OPEN VCC2 VASK 11 C9 10 100pF VCC_ MOD VREG OOKIN 9 VCC5 27 C28 1000pF VCC_ DIG JU9 R7 OPEN LD 12 VCC4 24 LD 16 17 18 19 20 14 C24 10pF C10 100pF REF SMA R9 0Ω 1 TP1 L2 12nH L1 12nH R14 5.1kΩ R13 0Ω VCC_ DRV TEST1 15 VCC3 RF- RF+ N.C./GND DIVOUT D1/VCO- OSC 21 DO/VCO+ 22 C23 Y1 22pF R12 OPEN R8 30kΩ PWRSET 13 REFIN 23 C26 1000pF VCC_ DIG C25 1000pF C36 C32 22µF 1.8pF L9 10nH L8 10nH C16 1.2pF C11 100pF C15 1.2pF DIVOUT C31 1.8pF R15 10Ω R10 OPEN R11 OPEN 3 2 JU7 VCC 1 L3 27nH 3 1 L4 27nH 2 C33 0.5pF JU6 VCC C20 1.2pF C19 100pF VCC_PA L5 C12 33nH 0.01µF VCC C37 1.2pF C34 0.5pF 3 2 1 C39 1.2pF L7 33nH C38 1.2pF L6 33nH BALUN T1 C21 6.8pF 4 6 RF SMA SMA VCO Evaluate: MAX2900–MAX2904 1 MAX2900–MAX2904 Evaluation Kits Figure 3. MAX2903 EV Kit Schematic ______________________________________________________________________________________ 11 12 C30 10µF GND VCC C14 10µF TUNE C3 1nF C1 OPEN C29 0.1µF VCC 3 1 JU15 CUT HERE JU14 CUT HERE JU13 CUT HERE JU12 CUT HERE JU11 CUT HERE C13 10µF 1 VCC_PA VCC_DRV VCC_MOD VCC_VCO VCC_CP VCC_DIG 2 JU1 VCC JU2 2 C35 OPEN R1 0Ω VREG R3 1.6kΩ VCC 3 JU10 CUT HERE VCC_ VCO R2 51kΩ R4 2.7kΩ VCC 6 5 EN RPLF VCC1 VREG VGND VTUNE CPOUT 28 3 2 1 JU4 7 REFEN MODIN 8 JU3 C7 100pF C6 100pF R5 68kΩ C5 1000pF 4 C4 0.01µF 3 2 1 C2 82pF 3 VCC2 N.C./D2 26 2 JU9 25 JU8 MAX2904 U1 REFOUT C27 100pF VASK C8 0.01µF R6 OPEN VASK 11 C9 10 100pF VCC_ MOD VREG OOKIN 9 VCC5 27 C28 1000pF VCC_ CP 1 R7 OPEN LD 12 VCC4 24 LD 16 17 18 19 20 C24 10pF C10 100pF REF SMA R9 0Ω 1 TP1 L2 12nH L1 12nH R14 OPEN R13 OPEN VCC_ DRV TEST1 15 VCC3 14 RF- RF+ N.C./GND DIVOUT D1/VCO- OSC 21 DO/VCO+ 22 C23 Y1 22pF R12 OPEN R8 30kΩ PWRSET 13 REFIN 23 C26 1000pF VCC_ DIG C25 1000pF C36 C32 22µF 1.8pF JU7 L9 10nH L8 10nH 2 C16 1.2pF C11 100pF C15 1.2pF DIVOUT C31 1.8pF R15 10Ω R10 OPEN R11 OPEN 3 1 VCC 3 1 L4 27nH 2 C33 0.5pF JU6 VCC C20 1.2pF C19 100pF L3 27nH VCC_PA L5 C12 33nH 0.01µF VCC C37 1.2pF C34 0.5pF 3 2 1 C39 1.2pF L7 33nH C38 1.2pF L6 33nH BALUN T1 C21 6.8pF 4 6 RF SMA SMA VCO Evaluate: MAX2900–MAX2904 MAX2900–MAX2904 Evaluation Kits Figure 4. MAX2904 EV Kit Schematic ______________________________________________________________________________________ MAX2900–MAX2904 Evaluation Kits 1.0" Figure 5. MAX2900–MAX2904 EV Kits—Top Silkscreen Figure 6. MAX2900–MAX2904 EV Kits—Bottom Silkscreen 1.0" 1.0" Figure 7. MAX2900–MAX2904 EV Kits PC Board Layout— Component Side Figure 8. MAX2900–MAX2904 EV Kits PC Board Layout— 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 ____________________ 13 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. Evaluate: MAX2900–MAX2904 1.0"