RF3865 WIDE BANDWIDTH, HIGH LINEARITY LOW NOISE AMPLIFIER/LINEAR DRIVER Features WiMAX LNA or Linear Driver CDMA, PCS, ECS, UMTS LNA WLAN LNA High Gain Linear Amplification VD1 NC VD2 NC NC 1 15 NC NC 2 14 NC 13 RF OUT RF IN 3 NC 4 12 NC AC GND1 5 Applications 16 11 AC GND2 6 7 8 9 10 NC 17 INTERSTAGE IN 18 NC 19 INTERSTAGE OUT Low Noise and High Intercept Point Adjustable Bias Current Single 2.5V to 6.0V Power Supply 700MHz to 3800MHz Operation QFN20, 5mmx5mm Package 20 NC NC Package Style: QFN, 20-Pin, 5mmx5mm Functional Block Diagram Product Description The RF3865 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, 180mA. Current can be increased to raise OIP3 while having minimal effect on noise figure. The IC is featured in a standard QFN, 20-pin, 5mmx5mm package. Ordering Information RF3865 RF3865PCK-410 RF3865PCK-411 Wide Bandwidth, High Linearity Low Noise Amplifier/Linear Driver Fully Assembled Evaluation Board with 5 Sample Parts 1.8GHz 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 DS070622 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 RF3865 Absolute Maximum Ratings Parameter Rating Unit Supply Voltage 0 to +7 VDC Input RF Level (See Note 1) +10 dBm 150 per stage mA Operating Ambient Temperature -40 to +85 °C Storage Temperature -40 to +150 °C Current Drain, IDD Note 1. Max continuous RF IN is +10dBm. The max transient RF IN is +20dBm. Parameter Min. Specification Typ. Caution! ESD sensitive device. 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. RoHS status based on EUDirective2002/95/EC (at time of this document revision). Max. Unit Condition High Band Frequency 3300 3800 MHz 220 mA VDD =5V dB +25°C, VDD =5V, IDD =180mA, 3500MHz unless specified Current 180 Gain 20 Noise Figure 1.1 dB Output IP3 37 dBm Output P1dB 22 dBm S11 -17 dB S22 -17 dB S12 -33 dB f1 =3500MHz, f2 =3501MHz Mid Band Frequency 1800 Current 2700 MHz 180 220 mA VDD =5V 31.0 dB +25°C, VDD =5V, IDD =180mA, 2000MHz unless specified Gain 27.5 28.5 Noise Figure 1.0 1.2 dB Output IP3 34 36 dBm 21.0 22.5 Output P1dB 25.0 f1 =2000MHz, f2 =2001MHz dBm S11 -10 dB S22 -20 dB S12 -40 dB Low Band Frequency 700 1100 MHz 220 mA VDD =5V dB +25°C, VDD =5V, IDD =180mA, 850MHz unless specified Current 180 Gain 33 Noise Figure 1.2 dB OIP3 36 dBm OP1dB 22 dBm S11 -15 dB S22 -18 dB S12 -40 dB 2 of 6 f1 =851MHz, 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 DS070622 RF3865 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pkg Base Function NC NC RF IN NC AC GND1 NC INTERSTAGE OUT NC INTERSTAGE IN NC AC GND2 NC RF OUT NC NC NC VD2 NC VD1 NC GND Description Not connected. Not connected. RF input pin. 50Ω matched. This pin is DC-blocked. Not connected. AC ground. Shunt cap may be added for tuning. Not connected. Interstage RF output. Not connected. Interstage RF input. Not connected. AC ground. Shunt resistor may be added to increase IDD and OIP3. 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. Bias voltage. 2.5V to 6.0V applied through bias inductor. Not connected. Ground connection and heat sink. Package Drawing -A- 2 PLCS 0.10 C A 0.05 C 0.90 0.80 5.00 SQ. 2.75 TYP 0.20 REF 0.70 0.60 0.05 0.00 0.10 C B 2 PLCS 12° MAX 0.10 C B 2 PLCS -B- -C- SEATING PLANE 2.37 TYP 4.75 SQ. 0.10 C A 0.60 0.24 TYP 0.35 0.23 PIN 1 ID 0.20 R 3.20 SQ. 3.00 0.75 0.50 TYP 0.65 Dimensions in mm. Rev A0 DS070622 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 RF3865 Evaluation Board Schematic VDD VDD R1 0Ω C1 10 nF C2 10 nF C3 L1 20 C4 L2 19 18 17 16 1 15 2 14 3 13 4 12 5 11 L4 R2 RF IN L3 C5 RF OUT R3 6 7 8 9 10 R5 C7 C6 C8 Components 700-1100 MHz 1.8-3.8 GHz C3 (pF) 10 C4 (pF) 10 18 18 C5 (pF) 100 100 C6 (pF) DNP DNP C7 (pF) DNP 10 C8 (pF) DNP 0.5 L1 (nH) 10 8.2 L2 (nH) 12 4.7 L3 (nH) 18 4.7 L4 (nH) DNP DNP R2 (ohm) 0 0 R3 (ohm) DNP DNP R5 (ohm) 10 pF 15 pF R3 is DNP for standard 180mA current draw. If R3 is added, the IDD will increase. A 20Ω R3 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 DS070622 RF3865 5V Noise Figure versus Temperature 5V Gain versus Temperature 1.6 32.0 31.0 1.4 29.0 1.2 Gain (dB) Noise Figure (dB) 30.0 1.0 28.0 27.0 26.0 0.8 25.0 24.0 0.6 -40 25 85 -40 25 23.0 85 0.4 22.0 1500.0 2000.0 2500.0 3000.0 1500.0 2000.0 2500.0 Frequency (MHz) Frequency (MHz) 5V OIP3 versus Temperature 5V P1dB versus Temperature 38.5 3000.0 23.5 38.0 23.0 37.5 22.5 P1dB (dBm) OIP3 (dBm) 37.0 36.5 36.0 22.0 21.5 35.5 21.0 35.0 -40 25 85 34.5 -40 20.5 25 85 34.0 20.0 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 1.8 22.5 22.0 1.6 21.5 21.0 20.5 Gain (dB) Noise Figure (dB) 1.4 1.2 1.0 20.0 19.5 19.0 0.8 18.5 18.0 -40 25 85 0.6 -40 25 85 17.5 0.4 17.0 3.2 3.3 3.4 3.5 3.6 Frequency (GHz) Rev A0 DS070622 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 RF3865 5V OIP3 versus Temperature 5V P1dB versus Temperature 40.0 24.5 24.4 39.5 24.3 24.2 24.1 P1dB (dBm) OIP3 (dBm) 39.0 38.5 38.0 24.0 23.9 23.8 23.7 23.6 37.5 23.5 -40 25 85 37.0 36.5 -40 25 85 23.3 23.2 3.2 3.3 3.4 3.5 3.6 Frequency (GHz) 6 of 6 23.4 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 DS070622