RF3220

RF3220High Linearity/Driver Amplifier RF3220 HIGH LINEARITY/DRIVER AMPLIFIER RoHS Compliant & Pb-Free Product Package Style: QFN, 12-Pin, 3 x 3 GND 500MHz to 2GHz +40.8dBm Output IP3 +14.2dB Gain at 1850MHz +12.4dBm Input P1dB at 1850MHz 2.8dB Noise Figure at 1850MHz Single 5V Power Supply GND 1 RF IN 2 GND 3 12 11 GND 10 9 GND 8 RF OUT 7 GND 6 GND Features 4 GND Basestation Applications Cellular and PCS Systems CDMA, W-CDMA Systems GSM/EDGE Systems Final PA for Low-Power Applications 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 High Linearity/Driver Amplifier Fully Assembled Evaluation Board Optimum Technology Matching® Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT Si CMOS Si BJT GaN HEMT 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 A1 DS050822 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. GND Applications BIAS 5 1 of 10 RF3220 Absolute Maximum Ratings Parameter RF Input Power Device Voltage Device Current Operating Temperature Storage Temperature Rating +20 -0.5 to +6.0 250 -40 to +85 -40 to +150 Unit dBm V mA °C °C 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. Parameter Overall AC Specifications Frequency Gain Input VSWR Output VSWR Reverse Isolation Output IP3 Output P1dB Noise Figure Min. Specification Typ. Max. Unit Condition VCC =5V, RFIN =-10dBm, Freq=1850MHz, with Temp=25°C unless otherwise noted. 500 12 14.2 1.2 1.7 20 36 23 23 40 +25.5 2.9 76 153 2000 15.5 1.5 2.0 MHz dB SWR SWR dBm dBm F1 = 1850MHz, F2 =1851MHz 3.3 dB ICC =160mA, PDISS =0.997W. (See Note.) °C/W °C TCASE =+85°C TCASE =+85°C ICC =160mA VCC =5V Thermal ThetaJC Maximum Measured Junction Temperature at DC Bias Conditions Mean Time To Failures 5800 4.5 110 5.0 145 5.5 170 years V mA DC Specifications Device Voltage Operating Current Range Note: The RF3220 must be operated at or below 175mA in order to achieve the thermal performance listed above. While the RF3220 may be operated at higher bias currents, 175mA is the recommended bias to ensure the highest possible reliability and electrical performance. 2 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Rev A1 DS050822 RF3220 Pin 1 2 Function GND RF IN Description 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. RF IN To Bias Circuit RF OUT Interface Schematic 3 4 5 6 7 8 GND GND GND GND GND RF OUT 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 Ω with a shunt bias/matching inductor and series blocking/matching capacitor. Refer to application schematics. Ground connection. 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 CC See pin 2. 9 10 11 GND GND BIAS 12 Pkg Base GND GND Ground connection. Ground connection. Vias to ground required under the package base. Package Drawing 2 PLCS 0.05 C 2 PLCS 0.10 C A -A- 3.00 0.10 C B 2 PLCS 0.70 0.65 0.90 0.85 0.05 0.00 3.00 12° MAX 2 PLCS 0.10 C B 2.75 SQ. 0.10 C A 2 PLCS -B- Dimensions in mm. -C- SEATING PLANE Shaded lead is pin 1. 0.60 0.24 TYP 0.10 M C A B 0.30 0.18 PIN 1 ID R.20 0.75 0.50 1.25 0.95 SQ. 0.50 Rev A1 DS050822 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3 of 10 RF3220 Application Schematic - 1850MHz VCC 240 Ω 12 1 3 pF RF IN 2.2 nH 2 3 4 11 10 9 8 2.2 pF 7 10 nH RF OUT 4.7 nH 5 6 4 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Rev A1 DS050822 RF3220 Evaluation Board Schematic BIAS VCC + C8 4.7 μF C6 10 pF C5 0.1 μF R1 240 Ω C3 10 pF 9 8 7 4 5 6 L3 4.7 nH P1-1 L2 10 nH C2 2.2 pF C4 0.1 μF C7 + 4.7 μF 12 C1 3 pF L1 2.2 nH 1 2 3 11 10 J1 RF IN 50 Ω μstrip 50 Ω μstrip J2 RF OUT P1 1 2 P1-3 3 CON3 BIAS GND VCC Rev A1 DS050822 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 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 sales-support@rfmd.com. Rev A1 DS050822 RF3220 ICC versus VCC Across Temperature 210.00 -40C 25C 85C 14.0 170.00 16.0 -40C 25C 85C Gain versus Frequency Across Temperature (VCC=5.0V) 190.00 150.00 130.00 Gain (dB) 4.25 4.50 4.75 5.00 5.25 5.50 5.75 6.00 12.0 ICC (mA) 110.00 10.0 90.00 8.0 70.00 50.00 4.00 6.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 VCC (V) Frequency (MHz) OIP3 versus Frequency Across Temperature 44.0 43.0 42.0 41.0 40.0 25.0 -40C 25C 85C Output P1dB versus Frequency Across Temperature 26.0 -40C 25C 85C (VCC=5.0V) (VCC=5.0V) 39.0 38.0 37.0 36.0 35.0 34.0 33.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 Output P1dB (dBm) Frequency (MHz) OIP3 (dBm) 24.0 23.0 22.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 Frequency (MHz) Input SWR versus Frequency Across Temperature 6.0 -40C 25C 85C 5.0 2.5 Output VSWR versus Frequency Across Temperature 3.0 -40C 25C 85C (VCC=5.0V) (VCC=5.0V) 4.0 VSWR 3.0 2.0 1.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 SWR 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) Frequency (MHz) Rev A1 DS050822 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 7 of 10 RF3220 Noise Figure versus Frequency Across Temperature 5.5 5.0 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 -40C 25C 85C (VCC=5.0V) Noise Figure (dB) 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 sales-support@rfmd.com. Rev A1 DS050822 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 3 μinch to 8 μinch gold over 180 μinch 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. Dimensions in mm. B Pin 1 B B A A A C A A A B B B 0.50 Typ. 0.50 1.00 Typ. 0.77 Typ. 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 A1 DS050822 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 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 Pin 1 B B Dimensions in mm. 0.50 Typ. A A A C A A A B B B 0.50 1.00 Typ. 0.77 Typ. 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 sales-support@rfmd.com. Rev A1 DS050822