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| MAALSS0025 High Dynamic Range Low Noise Amplifier 400 - 500 MHz Features * * * * * * Low Noise Figure: 0.9 dB High OIP3: +28 dBm at 5 V, 60 mA bias High Gain: 21 dB Single Supply: +3 to +8 VDC Low Cost SOIC-8 Plastic Package Adjustable current: 20 to 80 mA with external resistor Rev. V1 Functional Block Diagram GND GND REXT VDD Description M/A-COM's MAALSS0025 is a high dynamic range, low noise GaAs MMIC amplifier in a low cost, surface mount package. It employs external input matching to obtain optimum noise figure performance and operating frequency flexibility. The MAALSS0025 also features flexible biasing to control the current consumption vs. dynamic range trade-off. The MAALSS0025 can operate from any supply voltage in the 3 V to 8 V range. Its current can be controlled over a range of 20 mA to 80 mA with an external resistor. The MAALSS0025 is ideally suited for use where low noise figure, high gain, high dynamic range, and low power consumption are required. Typical applications include receiver front ends in CDMA450 base stations. It is also useful as a gain block, buffer, driver, and IF amplifier in both fixed and portable cellular and 450 MHz ISM systems. The MAALSS0025 is fabricated using a low-cost 0.5-micron gate length GaAs process. The process features full passivation for increased performance reliability. RF IN RF OUT GND GND Pin Configuration Pin No. Pin Name 1 2 3 4 5 6 7 8 GND REXT RF IN GND GND RF OUT VDD GND Description RF and DC Ground External Current Control (optional) RF Input RF and DC Ground RF and DC Ground RF Output Positive supply voltage RF and DC Ground Absolute Maximum Ratings 3 Parameter VDD Input Power 4 5 Absolute Maximum +10 VDC +10 dBm 120 mA +150C -40C to +85C -65C to +150C Ordering Information1,2 Part Number MAALSS0025 MAALSS0025TR MAALSS0025SMB Package Bulk Packaging 1000 piece reel Sample Test Board Current Channel Temperature Operating Temperature Storage Temperature 1. Reference Application Note M513 for reel size information. 2. All sample boards include 5 loose parts. 3. Exceeding any one or combination of these limits may cause permanent damage to this device. 4. When pin #2 is used to increase current (see note 6). 5. Thermal resistance (jc) = +88C/W. 1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAALSS0025 High Dynamic Range Low Noise Amplifier 400 - 500 MHz Electrical Specifications: TA = +25C, Z0 = 50 , F = 450 MHz, Pin = -30 dBm Parameter Gain Noise Figure Input Return Loss Output Return Loss Output 1 dB Compression Output IP3 Input IP3 Reverse Isolation 6. Using external 15-ohm resistor. See functional schematic. Rev. V1 Test Conditions 5 V, 60 mA6 5 V, 60 mA -- -- 5 V, 60 mA 3 6 Units dB dB dB dB dBm dBm dBm dB Min 19 -- -- -- -- -- 3 -- Typ 21 0.9 9 11 16.5 28 7 34 Max 24 1.4 -- -- -- -- -- -- 5 V, 60 mA3 5 V, 60 mA -- 3 Functional Schematic VDD External Circuitry Parts List Part C1 L3 C3 Value 100 pF 8 pF 470 pF 4 pF 22 nH 43 nH 12 nH 11 nH 15 Ohms Purpose DC Block Input Matching Bypass Output Matching Input Matching Input Matching RF Choke Output Matching Optional current control7 (see note 6) C2 C3 C4 OUT IN C1 L2 3 7 6 1,4,5,8 2 L4 R1 (See note 6) C4 L1 L2 L3 L4 R1 L1 C2 Handling Procedures The following precautions should be observed to avoid damage: 7. Pin 2 allows use of an external resistor to ground for optional, higher current. For 20 mA operation, no resistor is used. For IDD ~ 40 mA, R2 = 43 ohms; IDD ~ 60 mA, R2 = 15 ohms; IDD ~ 80 mA, R2 = 10 ohms. Static Sensitivity Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices. 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAALSS0025 High Dynamic Range Low Noise Amplifier 400 - 500 MHz Typical Performance Curves over Temperature Gain 23 Rev. V1 Reverse Isolation 0 +25C -40C +85C -10 21 -20 19 -30 17 +25C -40C +85C -40 15 400 420 440 460 480 500 -50 400 420 440 460 480 500 Frequency (MHz) Frequency (MHz) Input Return Loss 0 +25C -40C +85C Output Return Loss 0 +25C -40C +85C -3 -3 -6 -6 -9 -9 -12 -12 -15 400 420 440 460 480 500 -15 400 420 440 460 480 500 Frequency (MHz) Frequency (MHz) Noise Figure 2.0 +25C -40C +85C Output IP3 35 1.6 30 1.2 25 0.8 20 0.4 +25C -40C +85C 0.0 400 420 440 460 480 500 15 400 420 440 460 480 500 Frequency (MHz) 3 Frequency (MHz) ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MAALSS0025 High Dynamic Range Low Noise Amplifier 400 - 500 MHz SO-8 Rev. V1 Recommended PCB Configuration Cross Section View The PCB dielectric between RF traces and RF ground layers should be chosen to reduce RF discontinuities between 50-ohm lines and package pins. M/A-COM recommends an FR-4 dielectric thickness of 0.008" (0.20 mm) yielding a 50-ohm line width of 0.015" (0.38 mm). The recommended RF metalization thickness is 1 ounce copper. 4 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. |
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