MAX2371/MAX2373 Evaluation Kits

Transcription

1 9-55; Rev 0; /0 MAX7/MAX7 Evaluation Kits General Description The MAX7/MAX7 evaluation kits (EV kits) simplify evaluation of the MAX7/MAX7 low-noise amplifiers (LNAs). They enable testing of the devices radio frequency (RF) performance and require no additional support circuitry. The EV kits signal inputs and outputs use SMA connectors to facilitate the connection of RF test equipment. DESIGNATION QTY DESCRIPTION C, C, C7 Open C C4, C5 C6 C8 C9 C0 C9 5pF ±5% capacitor 040_UMK05CH50JW-B 500pF ±0% capacitors Murata 040_GRP55R7H5K 6.8pF ± 0.5pF capacitor Murata 040_GRP555CH6R8DZ0E.0µF ±0% capacitor 0805_LMKBJ05MG-B 0nF ±0% capacitor Murata 040_GRP55R7C0K 0.05µF ±0% capacitor 040_EMK05B5KW-B 00nF ±0% capacitor Murata 040_GRP55R6A04K Features Easy Evaluation of the MAX7/MAX7.65V to.v Single-Supply Operation Jumpers for Analog/Digital Control All Critical Peripheral Components Included Fully Assembled and Tested DESIGNATION QTY DESCRIPTION R.0kΩ ±% resistor CC040 R 750Ω ±% resistor CC040 R 0Ω resistor CC040 L Open L L4 56nH inductor Coilcraft 008CS-560XJBC nh ±5% inductor Murata 060_LQG8HNNJ00 L5 0nH ±5% inductor Coilcraft 008CS-XJBB U MAX7EGC Maxim MAX7EGC J, J, J J4 J5, J6 P, P Ordering Information PART TEMP RANGE IC PACKAGE MAX7EVKIT -40 C to +85 C QFN MAX7EVKIT -40 C to +85 C QFN MAX7 Component List -pin headers Digi-Key S0-6-ND 6-pin header Digi-Key S0-6-ND -pin headers Digi-Key S0-6-ND SMA connectors (edge mount) Johnson Evaluate: MAX7/MAX7 Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at , or visit Maxim s website at

2 MAX7/MAX7 Evaluation Kits Evaluate: MAX7/MAX7 DESIGNATION QTY DESCRIPTION C C C, C4 C5 C6 C7 Open 00nF ±0% capacitor Murata 040_GRP55R6A04K 0.05µF ±0% capacitor 040_EMK05B5KW-B 00pF ±5% capacitors Murata 040_GRP555CH0J.pF ±0.pF capacitor Murata 040_GRP555CHRB.0µF ±0% capacitor 0805_LMKBJ05MG-B C8 0nF ±0% capacitor Murata 040_GRP55R7C0K R4.0kΩ ±% resistor CC040 R5.5kΩ ±% resistor CC040 R6 0Ω resistor CC040 L6 L8 L9 5nH ±5% inductor Coilcraft 040CS-5NXJBW 4.7nH ±0.nH inductor Murata 040_LQP5MN4N7C00.8nH ±0.nH inductor Murata 040_LQG5HNN8S00 L0 nh ±5% inductor Murata 040_LQG5HNNJ00 U MAX7EGC Maxim MAX7EGC J7, J8, J9 J0 J, J P, P4 MAX7 Component List -pin headers Digi-Key S0-6-ND 6-pin header Digi-Key S0-6-ND -pin headers Digi-Key S0-6-ND SMA connectors (edge mount) Johnson Component Suppliers SUPPLIER PHONE FAX CoilCraft Digi-Key Murata Note: Please indicate that you are using the MAX7/MAX7 when contacting these component suppliers. Quick Start The MAX7/MAX7 EV kits are fully assembled and factory tested. Follow the instructions in the Connections and Setup section for proper device evaluation. Test Equipment Required This section lists the recommended test equipment to verify operation of the MAX7/MAX7. It is intended as a guide only, and some substitutions are possible. Two RF signal generators capable of delivering at least 5dBm of output power at the operating frequency (HPE44B or equivalent) One RF power sensor capable of handling at least 0dBm of output power at the operating frequency (HP848A or equivalent) One RF power meter capable of measuring up to 0dBm of output power at the operating frequency (HP47B or equivalent) An RF spectrum analyzer that covers the MAX7/MAX7 operating frequency range, as well as a few harmonics (FSEB0, for example) A network analyzer (HP875D, for example) to measure small-signal return loss and gain (optional) Two power supplies capable of up to A at.65v to.v An optional ammeter for measuring the supply current SMA cables Connections and Setup This section provides a step-by-step guide to operating the EV kits and testing the devices function. Do not turn on the DC power or RF signal generators until all connections are made: ) Connect a DC supply set to.775v (through an ammeter if desired) to the and GND on the EV kit. Do not turn on the supply. ) Connect one RF signal generator to the LNA_IN

3 MAX7/MAX7 Evaluation Kits SMA connector. Do not turn on the generator s output. Set the generator for proper output frequency and power level. ) Connect the spectrum analyzer to LNA_OUT. Set the spectrum analyzer to a center frequency of 50MHz (MAX7) or 900MHz (MAX7). 4) Connect the jumpers to set the desired mode of operation (RX Enable/Disable, High/Low Attenuation, High/Low Current). 5) Connect a DC supply set to.875v (V CC / for maximum gain) to AGC. Do not turn on the supply. 6) Turn on the DC supplies. 7) Activate the RF generator s output. Refer to the Electrical Characteristics Table in the data sheet for specifications in different operation modes. 8) Another method for determining gain is by using a network analyzer (optional). This has the advantage of displaying gain versus a swept-frequency band, in addition to displaying input return loss. Refer to the network analyzer manufacturer s user manual for setup details. 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 MAX7/MAX7. Keep traces carrying RF signals as short as possible to minimize radiation and insertion loss. Use impedance control on all RF signal traces. nodes on the PC board should have decoupling capacitors to the closest ground. Refer to the Layout section of the MAX7/ MAX7 data sheet for more information. Evaluate: MAX7/MAX7

4 MAX7/MAX7 Evaluation Kits Evaluate: MAX7/MAX7 SMA_EDGE_6 P L OPEN J C 5pF C OPEN L 56nH R.kΩ C0 0.05µF R 750Ω J4- J4- J4- J4-4 J4-5 J4-6 C9 00nF L4 nh 0 GND RF_ RSET C LNA_IN AGC_BYP OPEN LNA_E C4 500pF 9 LNA_ 8 RX_EN LNA_OUT C7 OPEN RF_ATTN AGC LNA_I U MAX7 L5 0nH 7 C5 500pF C6 6.8pF SMA_EDGE_6 P J C9 0nF J J5 R 0Ω J6 C8 µf Figure. MAX7 EV Kit Schematic 4

5 MAX7/MAX7 Evaluation Kits SMA_EDGE_6 P L6 5nH J7 C 00nF R4.kΩ R5.5kΩ Evaluate: MAX7/MAX7 J0- J0- J0- J0-4 J0-5 J0-6 L8 4.7nH L9.8nH 0 GND RF_ RSET LNA_IN AGC_BYP LNA_E C 00pF 9 LNA_ 8 RX_EN LNA_OUT C7 OPEN RF_ATTN AGC LNA_I U MAX7 7 L0 nh C 0.05µF C4 00pF C5.pF SMA_EDGE_6 P4 J8 C8 0nF J9 J R6 0Ω J C6 µf Figure. MAX7 EV Kit Schematic 5

6 MAX7/MAX7 Evaluation Kits Evaluate: MAX7/MAX7.0".0" Figure. MAX7/MAX7 EV Kit Component Placement Guide Component Side Figure 4. MAX7/MAX7 EV Kit PC Board Layout Layer.0".0" Figure 5. MAX7/MAX7 EV Kit PC Board Layout Layer Figure 6. MAX7/MAX7 EV Kit PC Board Layout Primary Component Side 6

7 MAX7/MAX7 Evaluation Kits.0" Figure 7. MAX7/MAX7 EV Kit PC Board Layout Secondary Side Evaluate: MAX7/MAX7 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, 0 San Gabriel Drive, Sunnyvale, CA Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.