RF3220 RF3220Low Noise, Linear Amplifier High Linearity/Driver Amplifier LOW NOISE, LINEAR AMPLIFIER HIGH LINEARITY/DRIVER AMPLIFIER +14.0dB Gain at 1850MHz 2.9dB Noise Figure at 1850MHz Single 5V Power Supply Basestation Applications Cellular and PCS Systems CDMA, W-CDMA Systems GSM/EDGE Systems Final PA for Low-Power Applications 10 9 GND RF IN 2 8 RF OUT GND 3 Applications 11 GND 1 +12.5dBm Input P1dB at 1850MHz GND 12 7 GND 4 5 6 GND +40.8dBm Output IP3 GND 500MHz to 3GHz GND BIAS Features GND Package Style: QFN, 12-Pin, 3 x 3 Functional Block Diagram Product Description The RF3220 is a high-efficiency GaAs Heterojunction Bipolar Transistor (HBT) amplifier packaged in a low-cost surface-mount package. This amplifier is ideal for use in applications requiring high-linearity and low noise figure over the 500MHz to 3GHz frequency range. The RF3220 operates from a single 5V power supply, and is assembled in an economical 3mmx3mm QFN package. Ordering Information RF3220 RF3220PCBA-41X GaAs HBT GaAs MESFET InGaP HBT Low Noise, Linear Amplifier High Linearity/Driver Amplifier Fully Assembled Evaluation Board Optimum Technology Matching® Applied SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT Si CMOS Si BJT GaN HEMT RF MEMS LDMOS RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc. Rev A3 DS100520 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 1 of 10 RF3220 Absolute Maximum Ratings Parameter Rating Unit RF Input Power +20 dBm Device Voltage -0.5 to +6.0 V Device Current 200 mA Operating Temperature -40 to +85 °C Storage Temperature -40 to +150 °C Parameter Min. Specification Typ. Max. Caution! ESD sensitive device. Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. RoHS status based on EUDirective2002/95/EC (at time of this document revision). The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. Unit Condition VCC =5V, RFIN =-10dBm, Freq=1850MHz, with Temp=25°C unless otherwise noted. Overall AC Specifications Frequency 1850 MHz Gain 12 14.0 Output IP3 36 40 dBm Output P1dB 24 +25.5 dBm 2.9 dB Noise Figure 15.5 dB F1 = 1850MHz, F2 =1851MHz Thermal ThetaJC 76 °C/W Maximum Measured Junction Temperature at DC Bias Conditions 146 °C TCASE =+85°C ICC= 160mA VCC =5.0V Mean Time To Failures >100 years TCASE =+85°C DC Specifications Device Voltage Operating Current Range 5.0 110 135 V 160 mA Note: The RF3220 must be operated at or below 160mA in order to achieve the thermal performance listed above. 2 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. Rev A3 DS100520 RF3220 Pin 1 2 Function GND RF IN Description Interface Schematic Ground connection. RF input pin. This pin is not internally DC-blocked. A DC blocking capacitor suitable for the frequency of operation should be used. To Bias Circuit RF OUT RF IN 3 4 5 6 7 8 GND GND GND GND GND RF OUT 9 10 11 GND GND BIAS 12 Pkg Base GND GND Ground connection. Ground connection. Ground connection. Ground connection. Ground connection. Amplifier output pin. This pin is an open-collector output. It must be biased to VCC through a choke or matching inductor. This pin is typically matched to 50 with a shunt bias/matching inductor and series blocking/matching capacitor. Refer to application schematics. Ground connection. See pin 2. Ground connection. This pin is used to control the bias current. An external resistor may be used to set the bias current for any VPD voltage. Allows for trade-offs between IP3 versus noise figure and TMAX. V C C Ground connection. Ground connection. Vias to ground required under the package base. Package Drawing 2 PLCS 0.05 C -A- 2 PLCS 0.10 C A 0.90 0.85 0.05 0.00 0.70 0.65 3.00 0.10 C B 2 PLCS 3.00 12° MAX 2 PLCS 0.10 C B -B- 2.75 SQ. Dimensions in mm. -C- SEATING PLANE 0.10 C A 2 PLCS Shaded lead is pin 1. 0.10 M C A B 0.60 0.24 TYP 0.30 0.18 PIN 1 ID R.20 0.75 0.50 1.25 0.95 SQ. 0.50 Rev A3 DS100520 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 3 of 10 RF3220 Application Schematic - 1850MHz VCC 270 12 11 10 1 9 2 8 3 pF RF IN 2.2 nH RF OUT 2.2 pF 3 7 4 4 of 10 10 nH 5 4.7 nH 6 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. Rev A3 DS100520 RF3220 Evaluation Board Schematic BIAS C6 0.1 F J1 RF IN 50 strip C1 3 pF L1 2.2 nH R1 270 C5 10 pF 12 VCC 11 C3 10 pF 10 1 9 2 8 3 7 4 5 L2 10 nH C4 0.1 F C2 2.2 pF 50 strip L3 4.7 nH 6 J2 RF OUT P1 P1-1 P1-3 1 BIAS 2 GND 3 VCC CON3 Rev A3 DS100520 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 5 of 10 RF3220 Evaluation Board Layout Board Size 1.5" x 1.5" Board Thickness 0.032”, Board Material FR-4 6 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. Rev A3 DS100520 RF3220 Gain versus Frequency Across Temperature ICC versus VCC Across Temperature 210.00 (VCC=5.0V) 16.0 -40C 25C 85C 190.00 -40C 25C 85C 14.0 170.00 Gain (dB) ICC (mA) 150.00 130.00 110.00 12.0 10.0 90.00 8.0 70.00 50.00 6.0 4.00 4.25 4.50 4.75 5.00 5.25 5.50 5.75 6.00 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 Frequency (MHz) VCC (V) OIP3 versus Frequency Across Temperature 43.0 Output P1dB versus Frequency Across Temperature (VCC=5.0V) 44.0 -40C 25C 85C -40C 25C 85C 42.0 25.0 Output P1dB (dBm) 41.0 40.0 OIP3 (dBm) (VCC=5.0V) 26.0 39.0 38.0 37.0 36.0 24.0 23.0 35.0 34.0 33.0 22.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 Frequency (MHz) Frequency (MHz) Input SWR versus Frequency Across Temperature Output VSWR versus Frequency Across Temperature (VCC=5.0V) 6.0 (VCC=5.0V) 3.0 -40C 25C 85C -40C 25C 85C 5.0 2.5 SWR VSWR 4.0 2.0 3.0 1.5 2.0 1.0 1.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 Frequency (MHz) Frequency (MHz) Rev A3 DS100520 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 7 of 10 RF3220 Noise Figure versus Frequency Across Temperature (VCC=5.0V) 5.5 5.0 -40C 25C 85C Noise Figure (dB) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 Frequency (MHz) 8 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. Rev A3 DS100520 RF3220 PCB Design Requirements PCB Surface Finish The PCB surface finish used for RFMD’s qualification process is electroless nickel, immersion gold. Typical thickness is 3inch to 8inch gold over 180inch nickel. PCB Land Pattern Recommendation PCB land patterns are based on IPC-SM-782 standards when possible. The pad pattern shown has been developed and tested for optimized assembly at RFMD; however, it may require some modifications to address company specific assembly processes. The PCB land pattern has been developed to accommodate lead and package tolerances. PCB Metal Land Pattern A = 0.90 x 0.28 (mm) Typ. B = 0.28 x 0.90 (mm) Typ. C = 1.10 (mm) Sq. 1.00 Typ. 0.50 Typ. B Pin 1 0.50 Typ. B B A Dimensions in mm. A A C A A 0.50 1.00 Typ. A 0.77 Typ. B B B 0.77 Typ. 0.50 (mm) Figure 1. PCB Metal Land Pattern (Top View) PCB Solder Mask Pattern Liquid Photo-Imageable (LPI) solder mask is recommended. The solder mask footprint will match what is shown for the PCB metal land pattern with a 3mil expansion to accommodate solder mask registration clearance around all pads. The centergrounding pad shall also have a solder mask clearance. Expansion of the pads to create solder mask clearance can be provided in the master data or requested from the PCB fabrication supplier. Thermal Pad and Via Design The PCB metal land pattern has been designed with a thermal pad that matches the exposed die paddle size on the bottom of the device. Thermal vias are required in the PCB layout to effectively conduct heat away from the package. The via pattern has been designed to address thermal, power dissipation and electrical requirements of the device as well as accommodating routing strategies. The via pattern used for the RFMD qualification is based on thru-hole vias with 0.203mm to 0.330mm finished hole size on a 0.5mm to 1.2mm grid pattern with 0.025mm plating on via walls. If micro vias are used in a design, it is suggested that the quantity of vias be increased by a 4:1 ratio to achieve similar results. Rev A3 DS100520 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 9 of 10 RF3220 A = 1.00 x 0.38 (mm) Typ. B = 0.38 x 1.00 (mm) Typ. C = 1.20 (mm) Sq. 1.00 Typ. 0.50 Typ. B B B Dimensions in mm. Pin 1 A 0.50 Typ. A A C A A 0.50 1.00 Typ. A 0.77 Typ. B B B 0.77 Typ. 0.50 Figure 2. PCB Solder Mask Pattern (Top View) 10 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. Rev A3 DS100520