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RF3827 LINEAR GENERAL PURPOSE AMPLIFIER NC NC 12 NC GND 1 For Use in Both 50 and 75 Systems 5MHz to 1500MHz Operation Internally Matched Input and Output 20dB Small Signal Gain 1.2dB Noise Figure +24dBm Output Power Single 5V to 9V Positive Power Supply NC 2 11 RF OUT RF IN 3 10 NC NC 4 9 NC Applications 13 5 6 7 8 NC 14 NC 15 NC 16 NC NC Features NC Package Style: QFN, 16-Pin, 3mmx3mm Functional Block Diagram Linear LNA/Driver CATV Distribution Amplifiers Cable Modems Broadband Gain Blocks Laser Diode Driver Return Channel Amplifier Base Stations Product Description The RF3827 is a general purpose, low-cost, high-linearity RF amplifier IC. The device is manufactured on a Gallium Arsenide process and is featured in a 3mmx3mm, 16-pin, QFN package. It is ideally suited for use as a linear/low noise amplifier, with OIP3 equal to 38dBm and noise figure less than 1.5dB. Ordering Information RF3827 RF3827 PCBA Linear General Purpose Amplifier Fully Assembled Evaluation Board 50 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 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. DS110609 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. www.BDTIC.com/RFMD 1 of 10 RF3827 Absolute Maximum Ratings Parameter Rating Unit Device Current 175 mA Device Voltage 9 V Input RF Power +13 dBm Output Load VSWR 20:1 -40 to +85 °C Storage Temperature -40 to +150 °C Min. 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). Ambient Operating Temperature Parameter Caution! ESD sensitive device. Specification Typ. Max. 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 Overall (50) Frequency Range Gain Condition T=25 °C, VDD =8V, 50 Evaluation Board 50 1000 MHz 20.5 dB At 500MHz Gain Flatness +/-1.0 dB 50MHz to 1000MHz Noise Figure 1.3 dB 50MHz to 1000MHz Output IP3 38 dBm 50MHz to 1000MHz 25±1.0 dBm 50MHz to 1000MHz 24 dB 50MHz to 1000MHz Output P1dB Reverse Isolation 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]. www.BDTIC.com/RFMD DS110609 RF3827 Parameter Min. Specification Typ. Max. Unit Condition Thermal Theta JC 40 Maximum Junction Temperature °C/W 150 °C Referenced to the GND via of Pin 1 Power Supply Supply Voltage (VDD) Operating Current Range DS110609 5 7 9 V 115 120 130 mA 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. www.BDTIC.com/RFMD 3 of 10 RF3827 Pin 1 Function GND 2 3 NC RF IN 4 5 6 7 8 9 10 11 NC NC NC NC NC NC NC RF OUT Description Interface Schematic Keep traces physically short. Connect this pin to the ground plane with a via. No internal connection. Externally connected to RF input trace. RF input pin. This pin is internally DC blocked. An external DC blocking capacitor is not required. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No internal connection. Externally connected to RF output trace. RF output and bias pin. Because DC is present on this pin, a DC blocking capacitor, suitable for the frequency of operation, should be used in most applications. For biasing, only an RF choke is needed. RF OUT RF IN 12 13 14 15 16 Pkg Base 4 of 10 NC NC NC NC NC GND No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. No connection. This pin should be connected to the ground plane. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. www.BDTIC.com/RFMD DS110609 RF3827 Package Drawing Package Style: QFN, 16-Pin, 3mmx3mm DS110609 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. www.BDTIC.com/RFMD 5 of 10 RF3827 Application Schematic - 50 5MHz to 200MHz Linear Driver VDD 2.2 F 16 J1 RF IN 50 strip 15 14 10 nF 13 1 12 2 11 10 nF 1 uH 3 10 4 9 5 6 7 10 uH 0 50 strip 10 nF J2 RF OUT 8 100 VCC (V) 8 8 8 8 6 of 10 Frequency MHz 5 10 100 200 ICC mA 99.945 100.437 101.093 101.221 Gain dB 18.92 18.63 19.53 19.8 OIP3 dBm 33.7 37.75 38.47 38.6 OP1dB dBm 21.69 22.86 25.21 25.45 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. www.BDTIC.com/RFMD DS110609 RF3827 Evaluation Board Schematic - 50 50MHz to 1000MHz P1-1 VDD P1 1 VDD 2 GND 3 CON3 J1 RF IN 16 50 strip L1 8.2 nH C4 2 pF 15 14 C1 10 nF 13 1 12 2 11 3 10 4 9 5 6 7 C3 2.2 F L2 1 uH L3 1.5 nH 50 strip C2 10 nF J2 RF OUT 8 3827400, r.1 DS110609 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. www.BDTIC.com/RFMD 7 of 10 RF3827 Evaluation Board Layout - 50 Board Size 1.0” x 1.5” Board Thickness 0.031”, Board Material FR-4 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]. www.BDTIC.com/RFMD DS110609 RF3827 50 Ohm Evaluation Board 50MHz to 1000MHz, VCC=8V 39 39 37 35 33 31 29 27 25 23 21 8 V gain 8 V OIP3 8 V OP1dB 19 17 15 0 200 400 600 800 1000 1200 Freq (MHz) gain/OIP3/OP1dB (dB/dBm/dBm) gain/OIP3/OP1dB (dB/dBm/dBm) 41 50 Ohm Evaluation Board 50MHz to 1000MHz, VCC=5V 37 35 33 31 29 27 25 23 21 5 V gain 5 V OIP3 5 V OP1dB 19 17 15 0 200 400 600 800 1000 1200 Freq (MHz) 50 Ohm Evaluation Board 50MHz to 1000MHz, VCC=8V Noise Figure 2.0 1.8 1.5 NF (dB) 1.3 1.0 0.8 0.5 0.3 0.0 0 200 400 600 800 1000 1200 Freq (MHz) DS110609 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. www.BDTIC.com/RFMD 9 of 10 RF3827 Theory of Operation RF3827 can be used as both low noise amplifier and linear transmit driver. Internal matching is such that the part can be used effectively in both 50 and 75 systems. The standard evaluation board is 50, as are the corresponding specifications shown within the data sheet. Perhaps more convenient for the 75 designer, would be alternate products RF2360 and CXE2089Z. These two devices see very similar performance to RF3827, and standard 75 evaluation boards are available. An important note concerning RF3827 layout would apply to package pins 2 and 10. These two pins have no internal connection. They are, however, connected externally to RF input and output traces on the standard evaluation board. Given their close proximity to the actual input and output pins, this is simply a matter of convenience. The standard RF3827 evaluation board is matched to provide excellent performance from 50MHz to 1000MHz. An application schematic is also shown for 5MHz to 200MHz, in the event lower frequency operation is desired. Specifications are shown in the tabular sections for the condition VDD =8V. Note that graphs are also provided herein for the common design case where VDD =5V. 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]. www.BDTIC.com/RFMD DS110609