RF2311 4 GENERAL PURPOSE AMPLIFIER Typical Applications • General Purpose High Bandwidth Gain Blocks • Broadband Test Equipment • Final PA for Medium Power Applications • IF or RF Buffer Amplifiers • Driver Stage for Power Amplifiers Product Description The RF2311 is a general purpose, low cost low power RF amplifier IC. The device is manufactured on an advanced Gallium Arsenide Heterojunction Bipolar Transistor (HBT) process, and has been designed for use as an easily cascadable 50Ω gain block. Applications include IF and RF amplification in wireless voice and data communication products operating in frequency bands up to 1600MHz. The gain flatness and high bandwidth make the device suitable for many other applications as well. The device is self-contained with 50Ω input and output impedances, and no external DC biasing elements are required to operate as specified. .017 1 .195 .191 .050 .240 .232 Si Bi-CMOS ü GaAs MESFET SiGe HBT Si CMOS .056 .052 5° Optimum Technology Matching® Applied GaAs HBT .004 MIN .156 .152 .022 .018 Si BJT GENERAL PURPOSE AMPLIFIERS 4 .008 Package Style: SOP-8 Features • DC to well over 1600MHz Operation • Internally Matched Input and Output • 14dB Small Signal Gain • 4.2dB Noise Figure VCC 1 8 RF OUT GND 2 7 GND GND 3 6 GND RF IN 4 5 GND • +9dBm Output Power • Single 2.7V to 6V Positive Power Supply Ordering Information RF2311 RF2311 PCBA Functional Block Diagram Rev C3 010228 General Purpose Amplifier Fully Assembled Evaluation Board RF Micro Devices, Inc. 7625 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 4-81 RF2311 Absolute Maximum Ratings Parameter Supply Voltage Input RF Power Operating Ambient Temperature Storage Temperature Parameter GENERAL PURPOSE AMPLIFIERS 4 Rating Unit -0.5 to +6 +10 -40 to +85 -40 to +150 VDC dBm °C °C Specification Min. Typ. Max. Caution! ESD sensitive device. RF Micro Devices believes the furnished information is correct and accurate at the time of this printing. However, RF Micro Devices reserves the right to make changes to its products without notice. RF Micro Devices does not assume responsibility for the use of the described product(s). Unit Overall Frequency Range Gain 12 Noise Figure Input VSWR Output VSWR Output IP3 +14 Saturated Output Power +8 Reverse Isolation DC to 1600 14 13 4.2 4.0 <1.5:1 <1.3:1 +16 +8 +9 +1 20 16 MHz dB dB dB dB dBm dBm dBm dBm dB Condition T=25 °C, VCC =5V, Freq=900MHz 3dB Bandwidth VCC =5V VCC =3.6V VCC =5V VCC =3.6V 300MHz to 1200MHz 900MHz, VCC =5V 900MHz, VCC =3.6V 900MHz, VCC =5V 900MHz, VCC =3.6V Power Supply Operating Voltage Operating Current Range 4-82 12 2.7 to 6 17 8 21 11 V mA mA VCC =5V VCC =3.6V Rev C3 010228 RF2311 Function VCC 2 GND 3 4 GND RF IN 5 6 7 8 GND GND GND RF OUT Rev C3 010228 Description Interface Schematic Power supply pin. An external bypass capacitor is recommended. The total supply current is shared between this pin and pin 8 (through the inductor). Ground connection. Keep traces physically short and connect immediately to ground plane for best performance. Same as pin 2. See pin 8. RF input pin. This pin is NOT internally DC blocked. A DC blocking See pin 8. capacitor, suitable for the frequency of operation, should be used in most applications. DC coupling of the input is not allowed, because this will override the internal feedback loop and cause temperature instability. Same as pin 2. 4 Same as pin 2. GENERAL PURPOSE AMPLIFIERS Pin 1 Same as pin 2. RF output pin. Because DC is present on this pin, a DC blocking capacitor, suitable for the frequency of operation, should be used in most applications. The DC voltage on this pin is typically 2.4V. Alternatively, power supply may be connected to this pin. A series resistor and inductor should be used, in which case the L should be large enough to present a high impedance at the lowest operating frequency, and the R should be (VCC - 2.4) / I, where I is the desired device current (between 8mA and 20mA). VCC RF OUT RF IN 4-83 RF2311 Application Schematic 5V Supply Voltage VCC = 5V 100 nF 22 pF 22 pF GENERAL PURPOSE AMPLIFIERS 4 1 8 2 7 3 6 4 5 RF OUT 22 pF RF IN Application Schematic 2.7V Supply Voltage VCC= 2.7 V 15 Ω - 39 Ω 100 nH 22 pF 1 8 2 7 3 6 4 5 RF OUT 22 pF RF IN 4-84 Rev C3 010228 RF2311 Evaluation Board Schematic (Download Bill of Materials from www.rfmd.com.) P1 H3M P1-1 NC VCC 2 GND 3 C2 1 µF IN C3 1 nF 1 8 2 7 3 6 4 5 50 Ω µstrip OUT SMA J2 4 GENERAL PURPOSE AMPLIFIERS C4 1 nF P1-1 VCC SMA J1 1 50 Ω µstrip C1 330 pF Drawing 2311400 Rev B Rev C3 010228 4-85 RF2311 Evaluation Board Layout 2” x 2” GENERAL PURPOSE AMPLIFIERS 4 4-86 Rev C3 010228