Switched Low Noise Amplifier, 800-1000 MHz AM55-0016 AM55-0016 Switched Low Noise Amplifier 800 - 1000 MHz Features • • • • • MSOP-8 High Gain State: - Gain: 16dB, Noise Figure: 1.6dB - Input IP3: +3dBm (@2.7V, 25mA) Low Gain State: - Insertion Loss: 5dB, Input IP3: +24dBm Single Supply: +2.7 to +5 VDC Low Cost MSOP-8 Plastic Package Adjustable current: 10 to 30 mA with external resistor Functional Block Diagram R010 ID PIN 0.193 0 118 -B- Description 020 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. 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. Its 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 0.5-micron gate length GaAs MESFET process. The process features full passivation for increased performance and reliability. RF RF IN OUT .020 0.0256 0 118 4X 12° 4X 12° 0 034 0 040 3° 0.007 0 0215 0 008 0 013 Ordering Information Part Number AM55-0016 AM55-0016TR AM55-0016RTR AM55-0016SMB Package MSOP 8-Lead Plastic Package Forward Tape and Reel* Reverse Tape and Reel* Designer’s Kit * If specific reel size is required, consult factory for part number. 1 Electrical Specifications TA = +25°C, Z0=50Ω, F=881 MHz, PIN= -30 dBm, VDD=2.7 V, IDD=10 mA Parameter Test Conditions HIGH GAIN STATE, Voltage control = 2.7 volts Gain Noise Figure Input IP3 IDD = 10 mA, VDD = 2.7V IDD = 25 mA, VDD = 2.7V Input VSWR / Output VSWR Reverse Isolation LOW GAIN STATE, Voltage control = 0 volts IDD = 100 µA Insertion Loss Input IP3 Input VSWR Output VSWR Units Min. Typ. Max. dB dB dBm dBm — dB — — — — — — 16 1.6 -2 +3 2.0:1 32 — 1.8 — — dB dBm — — — — — — 5 +24 2.3:1 2.0:1 — — — — — 1. Refer to Typical Performance Data for performance versus frequency and bias. V2.00 M/A-COM Division of AMP Incorporated ■ North America: Tel. (800) 366-2266, Fax (800) 618-8883 ■ Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 ■ Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. Switched Low Noise Amplifier, 800-1000 MHz AM55-0016 1 Absolute Maximum Ratings Parameter External Circuitry Absolute Maximum +6 VDC 0 dBm 30 mA +150°C -40°C to +85°C -65°C to +150°C VDD Input Power Current 2 Channel Temperature Operating Temperature Storage Temperature VDD C4 C5 L1 RFIN 1. Exceeding any one or combination of these limits may cause permanent damage. 2. Typical thermal resistance (θjc) = +99°C/W. C1 1 Value 1000 pF 47 pF 10 nF 22 nH see note 2 UMH9N 1 8 2 7 3 6 4 5 RFOUT C2 RBIAS External Circuitry Parts List Part C1, C2 C3, C4 C5, C6, C7 L1 RBIAS U1 C6 C3 Purpose Source Bypass By-Pass By-Pass Tuning Source Bias Resistor Dual Bipolar Transistor 1. 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). 2. 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. VCTL U1 C7 Pin Configuration Pin No. 1 2 3 4 5 6 7 8 Pin Name VDD1 IN VS1 GND VS2 OUT VDD2 VCTL Description Stage 1 Supply Voltage RF Input Stage 1 Source RF and DC Ground Stage 2 Source RF Output Stage 2 Supply Voltage Switch Control Voltage Recommended PCB Configuration Layout View Cross Section View RF Traces + Components C3 C5 RF Ground C7 DC Routing C6 L1 C4 U2 C1 C2 Customer Defined The PCB dielectric between RF traces and RF ground layers should be chosen to reduce RF discontinuities 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 metalization thickness is 1 ounce copper. U1 RBIAS V2.00 M/A-COM Division of AMP Incorporated ■ North America: Tel. (800) 366-2266, Fax (800) 618-8883 ■ Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 ■ Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. Switched Low Noise Amplifier, 800-1000 MHz AM55-0016 Typical Performance Data Test Conditions: TA = +25°C, Z0 = 50Ω, VDD = 2.7V, IDD = 10mA unless otherwise specified. HIGH GAIN MODE: Noise Figure versus Current HIGH GAIN MODE: Gain versus Current 30mA 18 20mA Noise Figure (dB) Gain (dB) 17 16 10mA 15 14 13 12 800 850 900 Frequency (MHz) 950 1000 IIP3 (dBm) 20mA 15mA 10mA 850 900 Frequency (MHz) 20mA 950 1000 HIGH GAIN MODE: IIP3 vs. Current and Voltage 4.0V 3.6V 3.2V 6 2.7V 4 2 0 -2 900 Frequency (MHz) 950 10 1000 6 4 2 0 -2 -4 -6 -8 -10 -24 -22 -20 -18 -16 -14 Input Power (dBm) -12 -10 16 18 20 22 Current (mA) 24 26 LOW GAIN MODE: Insertion Loss and Input IP3 -2.0 -2.5 -3.0 -3.5 -4.0 -4.5 -5.0 -5.5 -6.0 -6.5 -7.0 800 850 900 Frequency (MHz) 950 High Gain 900 Frequency (MHz) 950 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 800 Return Loss (dB) Return Loss (dB) Low Gain 850 14 28 30 30 29 28 27 26 25 24 23 22 21 20 1000 OUTPUT RETURN LOSS INPUT RETURN LOSS 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 800 12 Insertion Loss (dB) 850 HIGH GAIN MODE: Gain and Output Power vs. Input Power -26 30mA 8 Gain (dB) 18 17 16 15 14 13 12 11 10 10 10mA 25mA Output Power (dBm) IIP3 (dBm) HIGH GAIN MODE: Input IP3 vs. Current 7 6 5 4 3 2 1 0 -1 -2 -3 800 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 800 IIP3 (dBm) 19 1000 High Gain Low Gain 850 900 Frequency (MHz) 950 1000 V2.00 M/A-COM Division of AMP Incorporated ■ North America: Tel. (800) 366-2266, Fax (800) 618-8883 ■ Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 ■ Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. Switched Low Noise Amplifier, 800-1000 MHz AM55-0016 Typical Performance Data (continued) 19 HIGH GAIN MODE: Gain vs. Temperature 2.4 18 2.2 Noise Figure (dB) -30C Gain (dB) 17 +25C 16 15 +80C 14 13 12 800 850 900 Frequency (MHz) HIGH GAIN MODE: Noise Figure vs. Temperature 950 1000 2.0 +80C 1.8 1.6 +25C 1.4 1.2 1.0 800 -30C 850 900 Frequency (MHz) 950 1000 Insertion Loss (dB) 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 -30C +25C +80C 850 900 Frequency (MHz) 950 1000 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. Evaluation PCB + RF Connector Losses Port Reference RF IN RF OUT AM55-0016 Evaluation Board Approximate RF Loss 0.15 dB @ 900 MHz 0.15 dB @ 900 MHz 2 6 8 10 GND 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). 4 1 3 5 7 9 RF IN AV10367 REV - RF OUT V2.00 M/A-COM Division of AMP Incorporated ■ North America: Tel. (800) 366-2266, Fax (800) 618-8883 ■ Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 ■ Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice.