MAALSS0025 MA-COM | Alldatasheet

Document overview

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Technical content

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

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. Pin Configuration Pin No. Pin Name Description

1 GND RF and DC Ground

2 REXT External Current Control (optional)

3 RF IN RF Input

4 GND RF and DC Ground

5 GND RF and DC Ground

6 RF OUT RF Output

7 VDD Positive supply voltage

8 GND RF and DC Ground

Absolute Maximum Ratings 3 Parameter Absolute Maximum VDD +10 VDC Input Power +10 dBm Current4 120 mA Channel Temperature5 +150°C Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C 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 ( θjc) = +88°C/W. Functional Block Diagram GND REXT GND RF OUT VDD GND RF IN GND GND REXT GND RF OUT VDD GND RF IN GND GND REXT GND RF OUT VDD GND RF IN GND Ordering Information1,2 Part Number Package MAALSS0025 Bulk Packaging MAALSS0025TR 1000 piece reel MAALSS0025SMB Sample Test Board 1. Reference Application Note M513 for reel size information. 2. All sample boards include 5 loose parts.

  • North America Tel: 800.366.2266 / Fax: 978.366.2266 Visit www.macomtech.com for additional data sheets and product information. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. High Dynamic Range Low Noise Amplifier 400 - 500 MHz Rev. V1 MAALSS0025 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development. Performance is based on target specifications, simulated results, and/or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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. Commitment to produce in volume is not guaranteed. Electrical Specifications: TA = +25°C, Z0 = 50 Ω, F = 450 MHz, Pin = -30 dBm Parameter Test Conditions Units Min Typ Max Gain 5 V, 60 mA6 dB 19 21 24 Noise Figure 5 V, 60 mA6 dB — 0.9 1.4 Input Return Loss — dB — 9 — Output Return Loss — dB — 11 — Output 1 dB Compression 5 V, 60 mA3 dBm — 16.5 — Output IP3 5 V, 60 mA3 dBm — 28 — Input IP3 5 V, 60 mA3 dBm 3 7 — Reverse Isolation — dB — 34 — 6. Using external 15-ohm resist or. See functional schematic. External Circuitry Parts List Part Value Purpose C1 100 pF DC Block C2 8 pF Input Matching C3 470 pF Bypass C4 4 pF Output Matching L1 22 nH Input Matching L2 43 nH Input Matching L3 12 nH RF Choke L4 11 nH Output Matching R1 15 Ohms Optional current control7 (see note 6) 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. Functional Schematic IN C1 OUT L1 C2 (See note 6) VDD 1,4,5,8 Handling Procedures The following precautions should be observed to avoid damage: 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.
  • North America Tel: 800.366.2266 / Fax: 978.366.2266 Visit www.macomtech.com for additional data sheets and product information. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. High Dynamic Range Low Noise Amplifier 400 - 500 MHz Rev. V1 MAALSS0025 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development. Performance is based on target specifications, simulated results, and/or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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. Commitment to produce in volume is not guaranteed. Typical Performance Curves over Temperature Gain Input Return Loss Reverse Isolation Output Return Loss Noise Figure Output IP3 400 420 440 460 480 500 +25°C -40°C +85°C Frequency (MHz) -50 -40 -30 -20 -10 400 420 440 460 480 500 +25°C -40°C +85°C Frequency (MHz) -15 -12 400 420 440 460 480 500 +25°C -40°C +85°C Frequency (MHz) -15 -12 400 420 440 460 480 500 +25°C -40°C +85°C Frequency (MHz) 0.0 0.4 0.8 1.2 1.6 2.0 400 420 440 460 480 500 +25°C -40°C +85°C Frequency (MHz) 400 420 440 460 480 500 +25°C -40°C +85°C Frequency (MHz)
  • North America Tel: 800.366.2266 / Fax: 978.366.2266 Visit www.macomtech.com for additional data sheets and product information. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. High Dynamic Range Low Noise Amplifier 400 - 500 MHz Rev. V1 MAALSS0025 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development. Performance is based on target specifications, simulated results, and/or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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. Commitment to produce in volume is not guaranteed. 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. SO-8 Recommended PCB Configuration