LTC5584 Demo Board (DC1670A) Quick Start Guide Quick Start Procedures: 1. 2. 3. 4. 5. 6. 7. Connect test equipments as shown in Figure 1 with all signal sources and DC supplies off. Turn on the 5V DC power supply. Connect EN to VCC_SENSE. Monitor the DC volt meter, and adjust the DC supply voltage until VCC_SENSE is 5V. Verify ICC is approximately 190mA. Turn on the RF and the LO signal generators. Adjust the spectrum analyzer settings. Be sure to use enough input attenuation to avoid overdriving the spectrum analyzer. 8. Take measurement. Using the IIP2 and DC Offset adjustment features: Method 1 (On-board trim pots): 1. Install jumpers to all 6 positions of jumper block JP1 2. Apply 1V DC to VCTRL. 3. Connect EIP2 and EDC to VCC_SENSE. 4. Adjust REF trim pot until the voltage on the REF test point reaches 0.5V. 5. Adjust IIP2 and DC Offset using the on-board trim pots. Method 2 (External voltage sources): 1. Remove jumpers from all 6 positions of jumper block JP1. 2. Connect EIP2 and EDC to VCC_SENSE. 3. Using 5 separate DC power supplies, apply 0.5V to each of the demo board REF, IP2I, IP2Q, DCOI, and DCOQ test points. 4. Vary the voltages on IP2I, IP2Q, DCO1, and DCOQ to adjust IIP2 and DC Offset. Preliminary Linear Technology Confidential 1 Spectrum Analyzer FSEM30 Combiner Mini-Circuits ZFSCJ-2-1 DC Block Combiner Mini-Circuits ZFSCJ-2-1 DC Block DC Block 50-ohm Termination DC Block 3dB PAD Signal Generator SMJ100A 1V DC Power Supply (20mA Minimum) DC Volt Meter 5V DC Power Supply (250mA Minimum) Signal Generator SME06 3dB PAD Mini-Circuits ZHL-1042J 3dB PAD Combiner MCLI PS2-104 Signal Generator SME06 3dB PAD Mini-Circuits ZHL-1042J 6dB PAD 3dB PAD Figure 1. Measurement Setup Preliminary Linear Technology Confidential 2 Figure2. Demo Board Schematic Preliminary Linear Technology Confidential 3 Item Qty Reference Part Description Manufacturer / Part # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 0 0 7 6 1 5 1 1 4 10 3 6 1 6 8 1 1 5 C1-C8,C14,C19,C23-C28,C36,C37,R5-R8,R16 C9 C10,C11,C31-C35 C12,C18,R10,R12,R17,R18 C13 C15,C38-C41 C16 C17 C21,C22,C29,C30 E1-E6,E8-E10,E13 E7,E11,E12 J1-J6 JP1 XJP1 (6 LOCATION FOR JP1) L1-L4,R1-R4 L5 L6 PT1,PT2,PT3,PT4,PT5 OPT, 0402 OPT, 0603 CAP., X7R, 0.1µF, 10%, 16V, 0402 RES., CHIP, 0 Ohm, 0402 CAP., COG, 2.2pF, +/- 0.05pF, 50V, 0402 CAP., X5R, 0.01uF, 10%, 50V, 0402 CAP., X7R, 4.7uF, 10%, 16V, 0805 CAP., COG, 1.5pF, +/- 0.05pF, 50V, 0402 CAP., X5R, 1µF, 10%, 10V, 0402 TESTPOINT, TURRET, .063" TESTPOINT, TURRET, .094" CONN., SMA, 50-OHM, EDGE-LANCH HEADER, 6 X 2 PIN, 2mm SHUNT RES., CHIP, 0 Ohm, 0805 IND., MULTILAYER, 3.9nH, +/-0.3nH, 0402 IND., MULTILAYER, 5.6nH, +/-0.3nH, 0402 POT., 4mm SMD, 500 Ohm MURATA, GRM155R71C104KA88D VISHAY, CRCW04020000Z0ED MURATA, GJM1555C1H2R2WB01D MURATA, GRM155R71H103KA88D MURATA, GRM21BR71C475KA73L MURATA, GJM1555C1H1R5WB01D MURATA, GRM155R61A105KE15D MILL-MAX, 2308-2-00-80-00-00-07-0 MILL-MAX, 2501-2-00-80-00-00-07-0 E.F.JOHNSON, 142-0701-851 SAMTEC TMM-106-02-L-D SAMTEC 2SN-BK-G VISHAY, CRCW08050000Z0EA MURATA, LQG15HS3N9S02D MURATA, LQG15HS5N6S02D BOURNS, 3214X-1-501-E 19 20 21 22 4 1 2 1 R9,R11,R13,R14 R15 T1,T2 U1 RES., CHIP, 100 Ohm, 1%, 1/16W, 0402 RES., CHIP, 1 Ohm, 1%, 1/8W, 0805 TRANSFORMER, RF, 1:1, 4.5-3000MHz IC, LTC5584IUF#PBF, QFN 4mm X 4mm VISHAY, CRCW0402100RFKED VISHAY, CRCW08051R00FNEA MINI-CIRCUITS, TC1-1-13M+ LINEAR TECH., LTC5584IUF#PBF Preliminary Linear Technology Confidential 4