RF2884 BROADBAND LOW NOISE AMPLIFIER Package: QFN, 12-Lead, 3x3 FM Receiver LNA UMTS LNA Cellular CDMA LNA General Purpose Amplification Commercial and Consumer Systems NC 12 11 10 NC 1 9 NC GC 2 8 VCC NC 3 7 NC 4 5 6 RF IN Applications NC NC Broadband Operation: 45MHz to 2500MHz ESD Protection: >2kV HBM Best-In-Class Linearity RF OUT NC Features Functional Block Diagram Product Description The RF2884 is a low noise amplifier with a very high dynamic range designed for a broad range of applications. This part is ideal for use as a FM LNA in cellular applications. The device functions as an outstanding front end low noise amplifier, featuring very low noise figure combined with high gain, high IIP3, and low current consumption. The product is packaged in a Pb-free, 3mmx3mm, QFN plastic package. Ordering Information RF2884 RF2884PCBA-410 RF2884PCBA-411 Broadband LoW Noise Amplifier Fully Assembled Evaluation Board (LNA) Fully Assembled Evaluation Board, FM LNA Optimum Technology Matching® Applied GaAs HBT GaAs MESFET InGaP HBT 9SiGe 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. DS20130228 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 1 of 6 RF2884 Absolute Maximum Ratings Parameter Supply Voltage Input RF Level Rating Unit -0.5 to +5.0 VDC +6.0 dBm 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 TAMB =-20°C to +85°C, VCC =2.65VDC to 3.0VDC (unless otherwise specified) Overall Frequency Range Condition 45 869 to 894 2500 MHz 894 MHz 16.25 dB Cellular Low Noise Amplifier Frequency 869 HIGH GAIN MODE Gain GC<0.8V 13.25 Noise Figure Input IP3 -2.0 Current 15.0 1.2 1.7 dB 1.7dB max, -20°C to +65°C 1.2 1.85 dB 1.85dB max, -20°C to +85°C +4.0 dBm 6.0 8.5 mA S11 -15.5 -10.5 dB S22 -15.5 -9.5 dB Input P1dB -16.0 -10.0 Reverse Isolation dBm -20 dB F1 =440MHz, ST IIP2=2*PIN -POUT +Gain Single Tone IIP2 +7.0 +11.0 Single Tone IIP3 -8.6 -6.5 F1 =293.3MHz, ST IIP3=PIN -(POUT +Gain-PIN)/2 Double Tone IIP2 -1.0 +5.0 F1 =835MHz, F2 =1715MHz, TT IIP2=PIN1 +PIN2 -POUT +Gain Double Tone IIP3 -6.3 -3.5 F1 =835MHz, F2 =2550MHz, TT IIP3=PIN -(POUT -Gain-PIN)/2 -7.0 -4.0 BYPASS MODE Gain GC>1.8V Input IP3 -2.0 +20.0 Current dB dBm 0.0 0.003 mA S11 -11.5 -10.5 dB S22 -10.5 -8.5 dB 110 MHz FM LNA Frequency Range 70 HIGH GAIN MODE Gain 15.9 dB Noise Figure 1.5 dB Input IP3 +1 dBm S11 -16 dB 2 of 6 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS20130228 RF2884 Parameter Min. Specification Typ. Max. Unit Condition FM LNA, cont. S22 -15 dB BYPASS MODE Gain -12 dB Input IP3 25 dBm Current 0 mA S11 -3.0 dB S22 -2.2 dB DS20130228 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 3 of 6 RF2884 Pin 1 2 Function NC GC 3 4 NC RF OUT 5 6 NC RF IN Description Interface Schematic No connection. Pin not used. This pin selects high gain or bypass mode. GC<0.8V, high gain. GC>1.8V, low gain. No connection. Pin not used. 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. No connection. Pin not used. See pin 6. RF input pin. A simple matching network is used to match to 50:. RF OUT RF IN 7 8 NC VCC No connection. Pin not used. 9 10 11 12 Pkg Base NC NC NC NC GND No connection. Pin not used. Supplies bias to control circuitry. An external bypass capacitor may be used to decouple bias. An external resistor also allows adjustment of the LNA operating current. A 0: resistor allows maximum operating current. Increasing series resistance lowers LNA current. The voltage at pin 8 must remain above 2.0V. VCC No connection. Pin not used. No connection. Pin not used. No connection. Pin not used. Ground connection. The backside of the package should be soldered to a top side ground pad which is connected to the ground plane with multiple vias. Package Drawing QFN, 12-Lead, 3x3 0.10 C A -A- 0.05 C 0.90 0.85 0.05 0.00 2 PLCS 3.00 0.70 0.65 2 PLCS 0.10 C B 3.00 12° MAX 2 PLCS 0.10 C B 2 PLCS -B- 2.75 SQ 0.10 C A -C- SEATING PLANE Dimensions in mm. 0.10 M C A B 0.60 0.24 TYP 0.30 0.18 PIN 1 ID R.20 1.25 SQ. 0.95 Shaded lead is pin 1. 0.75 0.50 0.50 4 of 6 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS20130228 RF2884 Application Schematic (Cellular Low Noise Amplifier ~881MHz) 12 11 10 1 9 510 : GC 2 8 3 7 33 nF VCC 10 : 33 nF VCC 33 nF 4 5 6 5.6 nH 6.2 pF 33 nF 6.8 nH RF OUT DS20130228 RF IN 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 5 of 6 RF2884 Application Schematic (FM LNA) 12 11 10 1 9 R1 1 k: ENABLE 2 C7 33 nF 8 3 7 4 C6 DNP VCC C5 33 nF 5 6 L1 2.7 nH L2 270 nH L3 1.8 nH VCC C1 33 nF C3 0.1 uF R2 430 : C2 0.1 uF C4 0.1 uF A RC feedback network is introduced here to better broad band operation. RF2884PCBA-411, Evaluation Board, FM LNA Typical Data for FM LNA High Gain Typical Gain 15.9 Unit dB Input IP3 -1.58 dBm Noise Figure 1.54 dB Current 6.3 mA Low Gain Typical Unit Gain -12 dB Input IP3 29 dBm Current 0.003 uA Test Condition: EVB 50:, VCC =2.8V, Room Temperature 6 of 6 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS20130228