Switched Low Noise Amplifier 800 - 1000 MHz Features • • • • • AM55-0016 V3 Functional Block Diagram High Gain State: -Gain: 16 dB, Noise Figure: 1.6 dB -Input IP3: +3 dBm (@2.7V, 25 mA) Low Gain State: -Insertion Loss: 5 dB, Input IP3: +24 dBm Single Supply: +2.7 to +5 VDC Low Cost MSOP-8 Plastic Package Adjustable current: 10 to 30 mA with external resistor Description M/A-COM’s AM55-0016 is a high dynamic range, switchable low noise amplifier in a low cost, MSOP 8-lead, surface mount, plastic package. The design utilizes a patented switching technique to provide a low insertion loss, high input IP3 bypass state in parallel with the high gain, low noise state. Pin Configuration The LNA employs external input matching to obtain optimum noise figure performance and operating frequency flexibility. The AM55-0016 also features flexible biasing to control the current consumption vs. dynamic range trade-off. It’s current can be controlled over a range of 10 mA to 30 mA with an external resistor. Typical applications include receiver front ends in cellular band CDMA handsets. It is also useful as a switched gain block, buffer or driver in portable cellular systems. The AM55-0016 is fabricated using a low-cost 0.5micron gate length GaAs MESFET process. The process features full passivation for increased performance and reliability. Pin Name Description 1 VDD1 Stage 1 Supply Voltage 2 IN RF Input 3 VS1 Stage 1 Source 4 GND RF and DC Ground 5 VS2 Stage 2 Source 6 OUT RF Output 7 VDD2 Stage 2 Supply Voltage 8 VCTL Switch Control Voltage Absolute Maximum Ratings 2,3,4 Ordering Information 1 1. Pin No. Parameter Absolute Maximum VDD +6 VDC Input Power 0 dBm Current 30 mA Part Number Package Channel Temperature 4 +150°C AM55-0016 MSOP-8 Lead Plastic Package Operating Temperature -40°C to +85°C AM55-0016TR Forward Tape and Reel Storage Temperature -65°C to +150°C AM55-0016SMB Sample Test Board Reference Application Note M513 for reel size information. 2. 3. 4. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. Exceeding any one or combination of these limits may cause permanent damage to this device. M/A-COM does not recommend sustained operation near these survivability limits. Typical thermal resistance (өjc) = +99°C/W. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Switched Low Noise Amplifier 800 - 1000 MHz AM55-0016 V3 Electrical Specifications: TA = 25°C, Z0 = 50 Ω, F = 881 MHz, PIN = -30 dBm, VDD = 2.7 V, IDD = 10 mA Parameter Test Conditions Units Min. Typ. Max. Gain dB — 16 — Noise Figure dB — 1.6 1.8 dBm dBm — — -2 +3 — — Input VSWR / Output VSWR — — 2.0:1 Reverse Isolation dB — 32 — dB — 5 — Input IP3 dBm — +24 — Input VSWR — — 2.3:1 — Output VSWR — — 2.0:1 — HIGH GAIN STATE, Voltage control = 2.7 volts Input IP3 IDD = 10 mA, VDD = 2.7 V IDD = 25 mA, VDD = 2.7 V LOW GAIN STATE, Voltage control = 0 volts Insertion Loss 1DD = 100 µA Evaluation Board Handling Procedures Please observe the following precautions 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. Evaluation PCB + RF Connector Losses Port Reference Approximate RF Loss RF IN 0.15 dB @ 900 MHz RF OUT 0.15 dB @ 900 MHz The DC connector on the Designer’s Kit PCB allows convenient DC line access. This is accomplished by one or more of the following methods: 1. A mating female multi-pin connector (Newark Electronics Stock # 46F-4658, not included). 2. Wires soldered to the necessary pins (not included). 3. Clip leads (not included). 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Switched Low Noise Amplifier 800 - 1000 MHz Recommended PCB Configuration AM55-0016 V3 Cross Section View The PCB dielectric between RF traces and RF ground layers should be chosen to reduce RF discontinues between 50 Ω lines and package pins. M/A-COM recommends an FR-4 dielectric thickness of 0.008” (0.2 mm) yielding a 50 Ω line width of 0.015” (0.38 mm). The recommended metallization thickness is 1 ounce copper. External Circuitry Parts List 5 External Circuitry 5. 6. Part Value Purpose C1, C2 1000 pF Source Bypass C3, C4 47 pF By-Pass C5, C6, C7 10 nF By-Pass L1 22 nH Tuning RBIAS See note 6 Source Bias Resistor U1 UMH9N Dual Bipolar Transistor All external circuitry parts are readily available, low cost surface mount components (0.040 inches x 0.020 inches or 0.060 inches x 0.030 inches). RBIAS is chosen to set the desired current, For: IDD ~10 mA, R1 = 75 ohms; IDD ~20 mA, R1 = 25 ohms; IDD ~30 mA, R1 = 9 ohms. Designer’s Kit AM55-0016SMB The AM55-0016SMB Designer’s Kit allows for immediate evaluation of M/A-COM’s AM55-0016. The Designer’s Kit includes an AM55-0016, an evaluation board and a floppy disk containing typical performance data and a DXF file of the recommended PCB layout. The evaluation board consists of the recommended external surface mount circuitry, RF connectors and a DC multi-pin connector, all mounted to a multi-layer FR-4 PCB. The AM55-0016SMB evaluation PCB is illustrated below with all functional ports labeled. 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Switched Low Noise Amplifier 800 - 1000 MHz AM55-0016 V3 Typical Performance Curves High Gain Mode: Noise Figure vs. Current High Gain Mode: Gain vs. Current 19 2.0 1.9 18 10mA 20mA 30mA 1.8 17 1.7 16 1.6 1.5 15 1.4 10mA 20mA 30mA 14 13 1.3 1.2 1.1 12 800 850 900 950 1000 Frequency (MHz) 950 1000 10 10mA 15 mA 20mA 25mA 4 900 High Gain Mode: IIP3 vs. Current and Voltage 7 5 850 Frequency (MHz) High Gain Mode: Input IP3 vs. Current 6 1.0 800 2.7 3.2 3.6 4.0 8 6 3 2 V V V V 4 1 2 0 -1 0 -2 -3 800 850 900 950 1000 -2 10 Frequency (MHz) 14 16 18 20 22 24 26 28 18 6 17 4 2 Low Gain Mode: Insertion Loss and Input IP3 30 -2.0 -2.5 IIP3 (dBm) -3.0 29 28 -3.5 27 0 -4.0 26 14 -2 -4.5 13 -4 Gain (dB) 15 Output Power (dBm) 12 -6 11 10 -26 -24 -22 -20 -18 -16 -14 30 Current (mA) High Gain: Gain and Output Power vs. Input Power 16 12 -12 -5.0 -5.5 25 24 IL (dB) 23 -6.0 22 -8 -6.5 21 -10 -7.0 800 -10 Input Power (dBm) 4 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. 850 900 950 20 1000 Frequency (MHz) • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Switched Low Noise Amplifier 800 - 1000 MHz AM55-0016 V3 Typical Performance Curves (continued) Input Return Loss Output Return Loss 0 0 -2 -2 -4 -4 -6 -6 -8 -8 -10 -10 -16 -18 -20 800 High Gain -12 -12 -14 Low Gain -14 Low Gain -16 High Gain 850 -18 900 950 1000 -20 800 850 High Gain Mode: Gain vs. Temperature 2.4 18 2.2 17 2 16 1.8 12 800 1000 -30°C +25°C +80°C 1.6 15 13 950 High Gain Mode: Noise Figure vs. Temperature 19 14 900 Frequency (MHz) Frequency (MHz) -30°C +25°C +80°C 850 1.4 1.2 900 950 1000 Frequency (MHz) 1 800 850 900 950 1000 Frequency (MHz) Low Gain Mode: Insertion Loss vs. Temperature -4.0 -4.2 -4.4 -4.6 -4.8 -5.0 -5.2 -5.4 -5.6 -5.8 -6.0 800 -30°C +25°C +80°C 850 900 950 1000 Frequency (MHz) 5 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Switched Low Noise Amplifier 800 - 1000 MHz AM55-0016 V3 MSOP-8† † Meets JEDEC moisture sensitivity level 1 requirements. 6 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.