RF3861 WIDE BANDWIDTH, HIGH LINEARITY LOW NOISE AMPLIFIER NC NC 13 NC 1 12 NC NC 2 11 RF OUT RF IN 3 10 NC NC 4 9 NC 5 6 7 8 NC 14 ACG 15 NC Low Noise and High Intercept Point Adjustable Bias Current Single 2.5V to 6.0V Power Supply 700MHz to 3800MHz Operation Extremely Small QFN16 3mmx3mm Package 16 NC VDD Features NC Package Style: QFN, 16-Pin, 3mmx3mm Applications CDMA,PCS,ECS,UMTS LNA/Linear Driver WLAN LNA/Linear Driver WiMAX LNA/Linear Driver 900MHz LNA/Linear Driver General Purpose Amplification Functional Block Diagram Product Description The RF3861 is a low noise amplifier with a high output IP3. The amplifier is self-biased from a single voltage supply with 50Ω input and output ports. The useful frequency range is from 700MHz to 3800MHz. A 1dB noise figure and 36dBm OIP3 performance is achieved with a 5V VDD, 90mA. Current can be increased to raise OIP3 while having minimal effect on noise figure. The IC is featured in a standard QFN, 16-pin, 3mmx3mm package. Ordering Information RF3861 RF3861PCK-410 RF3861PCK-411 RF3861PCK-412 Wide Bandwidth, High Linearity Low Noise Amplifier Fully Assembled Evaluation Board with 5 Sample Parts 1.5GHz to 2.7GHz 3.3GHz to 3.8GHz 700MHz to 1100MHz Optimum Technology Matching® Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT 9GaAs pHEMT GaN HEMT Si CMOS Si BJT 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 A0 DS070806 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 RF3861 Absolute Maximum Ratings Parameter Rating Unit Supply Voltage 0 to +7 VDC Input RF Level +10 dBm Current Drain, IDD 150 mA Operating Ambient Temperature -40 to +85 °C Storage Temperature -40 to +150 °C Note 1: Max continuous RF IN is +10dBm. The max transient RF IN is +20dBm. 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. Min. Specification Typ. Max. 3.3 3.5 3.8 GHz Current 90 110 mA Gain 10 dB At 3.5GHz Noise Figure 1.1 dB +25°C, VDD =5V, IDD =90mA, 3500MHz unless specified OIP3 37.0 dBm OP1dB 22.0 dBm S11 -12 dB S22 -18 dB Parameter Unit Condition High Band Frequency VDD =5V f1 =3500MHz, f2 =3501MHz Mid Band Frequency 1500 2700 MHz 90 110 mA VDD =5V 13.5 14.5 16.5 dB +25°C, VDD =5V, IDD =90mA, 2000MHz unless specified 1.0 1.2 OIP3 33.0 35.5 OP1dB 21.0 22.5 Current Gain Noise Figure dB dBm 25.0 f1 =2000MHz, f2 =2001MHz dBm S11 -10 dB S22 -20 dB Low Band Frequency 700 Current 90 Gain 16 1100 MHz 110 mA VDD =5V dB +25°C, VDD =5V, IDD =90mA, 850MHz unless specified Noise Figure 1.2 dB OIP3 36.0 dBm OP1dB 22.5 dBm S11 -14 dB S22 -18 dB 2 of 6 f1 =850MHz, f2 =851MHz 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. Rev A0 DS070806 RF3861 Pin 1 2 3 4 5 6 7 Function NC NC RF IN NC NC NC ACG Description 8 9 10 11 12 13 14 15 16 Pkg Base NC NC NC RF OUT NC NC NC VD NC GND Not connected. Interface Schematic Not connected. Not connected. RF input pin. 50Ω matched. This pin is DC-blocked. Not connected. Not connected. Not connected. AC ground. Shunt cap may be added for tuning. Shunt resistor may be added to increase IDD. Not connected. Not connected. RF output pin. 50Ω matched. This pin is DC-blocked. Not connected. Not connected. Not connected. Bias voltage. 2.5V to 6.0V applied through bias inductor. Not connected. Ground connection. Package Drawing 1.70 0.28 TYP 0.18 3.00 Pin 1 ID A Pin 1 ID 0.50 TYP 3.00 0.15 C 2 PLCS B 0.15 C 2 PLCS 1.70 0.40 TYP 0.20 0.05 0.10 M C A B 0.203 REF 0.1 C Dimensions in mm. Shaded lead is pin 1. Rev A0 DS070806 0.925 0.775 0.102 REF C 0.08 C 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 RF3861 Evaluation Board Schematic 700MHz to 3800MHz VDD C2 10 nF C1 L1 16 15 14 13 1 12 2 11 3 10 4 9 RF OUT R1 RF IN L2 5 6 7 L3 8 C3 R2 C4 Components 700-1100 MHz 1.5-2.7 GHz 3.3-3.8 GHz C1 (pF) 10 10 10 C3 (pF) 100 100 100 C4 (pF) 10 DNP DNP L1 (nH) 39 3.9 2.2 L2 (nH) 18 4.7 4.7 R1 (ohm) 0 0 0 R2 (ohm) DNP DNP DNP L3 (nH) DNP DNP DNP R2 is DNP for standard 90 mA current draw. If R2 is added, the IDD will increase. A 20 Ω R2 will raise the current to achieve higher linearity. 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]. Rev A0 DS070806 RF3861 5V Noise Figure versus Temperature 5V Gain versus Temperature 1.6 17.0 16.0 1.4 Gain (dB) Noise Figure (dB) 15.0 1.2 1.0 14.0 13.0 0.8 12.0 0.6 -40 25 85 11.0 -40 25 85 0.4 10.0 1500.0 2000.0 2500.0 3000.0 1500.0 2000.0 Frequency (MHz) 5V OIP3 versus Temperature 3000.0 5V P1dB versus Temperature 37.0 23.5 36.5 23.0 36.0 22.5 P1dB (dBm) OIP3 (dBm) 2500.0 Frequency (MHz) 35.5 35.0 22.0 21.5 34.5 21.0 -40 25 85 -40 25 85 34.0 20.5 1500.0 2000.0 2500.0 3000.0 1500.0 2000.0 Frequency (MHz) 2500.0 3000.0 Frequency (MHz) 5V Noise Figure versus Temperature 5V Gain versus Temperature 1.6 12.0 11.5 1.4 1.2 10.5 Gain (dB) Noise Figure (dB) 11.0 1.0 10.0 9.5 0.8 9.0 0.6 -40 25 85 -40 25 85 8.5 0.4 8.0 3.2 3.3 3.4 3.5 3.6 Frequency (GHz) Rev A0 DS070806 3.7 3.8 3.9 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Frequency (GHz) 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 RF3861 5V OIP2 versus Temperature 5V P1dB versus Temperature 39.5 23.5 23.4 39.0 23.3 23.2 P1dB (dBm) OIP3 (dBm) 38.5 38.0 37.5 23.1 23.0 22.9 22.8 37.0 22.7 36.5 -40 25 85 36.0 22.5 3.2 3.3 3.4 3.5 3.6 Frequency (GHz) 6 of 6 -40 25 85 22.6 3.7 3.8 3.9 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Frequency (GHz) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. Rev A0 DS070806