RF3800_07

RF3800GaAs HBT Pre-Driver Amplifier RF3800 GaAs HBT PRE-DRIVER AMPLIFIER RoHS Compliant & Pb-Free Product Package Style: AlN 3 Features 6 W Output Power High Linearity 45% Power-Added Efficiency Thermally-Enhanced AlN Packaging 150MHz to 960MHz Operation 5 V to 8V Supply with Adjustable Bias NC 4 PACKAGE BASE GND VREF 1 NC 2 RF IN 3 Bias Circuit 8 VBIAS 7 RF OUT 6 RF OUT 5 NC Applications Driver for 450MHz and 850MHz Basestation Amplifiers PA Stage for Commercial Wireless Infrastructure Functional Block Diagram Product Description The RF3800 is specifically designed for wireless infrastructure applications at 450MHz and 850MHz. Using a highly reliable GaAs HBT fabrication process, this high-performance single-stage amplifier achieves high output power over a broad frequency range. The RF3800 also provides excellent efficiency and thermal stability through the use of a thermally-enhanced surface-mount AlN package. Ease of integration is accomplished through the incorporation of an optimized evaluation board design provided to achieve proper 50 Ω operation. Various evaluation board configurations are available to address a broad range of wireless infrastructure applications. Ordering Information RF3800 RF3800PCBA-416 GaAs HBT Pre-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 A9 DS070130 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-107 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) RF3800 Absolute Maximum Ratings Parameter Supply Voltage (VCC) Rating 9.0 2300 29 7:1 85 +125 Unit VPC mA dBm °C °C 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). 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) DC Supply Current Input RF Power Output Load VSWR Operating Ambient Temperature Storage Temperature Parameter Overall - 450MHz Frequency Output P1dB Power Added Efficiency Small Signal Gain Input Return Loss Output Return Loss OIP3 Min. Specification Typ. Max. Unit Condition IREF =16mA, VCC =VBIAS =VREF =8V, Temp=+25°C 450 37.0 38.0 45 52 14.0 15 8 14.7 20 12 41 44 45 46 51 51 50 470 39.1 MHz dBm % % dB dB dB dBm dBm dBm dBm dBm dBm dB dBc dBc @ P1dB @ P1dB IREF =35mA, VCC =VBIAS =VREF =8V, Temp=+25°C 23dBm/tone 26dBm/tone 28dBm/tone 30dBm/tone 31dBm/tone 32dBm/tone @ P1dB @ PSAT Noise Figure Second Harmonic Third Harmonic 6.5 -35 -50 Overall - 850MHz Frequency Output P1dB Power Added Efficiency Small Signal Gain Input Return Loss Output Return Loss OIP3 Second Harmonic Third Harmonic -11 -10 869 37.0 42.5 12 -15 -10 48 -60 -60 8.0 0 7 300 0 8 400 0.5 9 500 10 894 MHz dBm % dB dB dB dBm dBc dBc V V V mA μA 23dBm/tone @ P1dB @ P1dB To set IREF at 16mA Power Control VREF Power Control “OFF” Power Supply Power Supply Voltage Supply Current Power Down Current VREF =8V, IREF =16mA VREF =0V, VCC =8V 3-108 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 A9 DS070130 RF3800 Pin 1 2 3 4 5 6 7 8 Pkg Base Function VREF NC RF IN NC NC RF OUT RF OUT VBIAS GND Description Control for active bias. Set to 8V at board jack. Drops to ~3.2V at pin. Not connected. RF input. Requires RF match and DC block. Not connected. Not connected. RF output. Requires RF match, bias feed and DC block. See pin 6. Supply for active bias. Set to 8V. Backside of package should be connected to a short path to ground. 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) 3-109 Package Drawing Pin 1 0.005 A -A0.0025 0.200 REF 0.024 0.200 0.180 REF 0.238 Dimensions in inches. 0.050 REF 0.078 REF 0.156 0.025 R.008 0.050 TYP 0.025 TYP 0.175 0.005 TYP 0.022 7 PL SCALE - 16:1 0.003 TYP Rev A9 DS070130 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. RF3800 Application Schematic - 220MHz VREF VCC 0.1 μF + 10 μF 1000 pF 220 pF 910 Ω 910 Ω 910 Ω DNI DNI C18 220 pF 1000 pF 10 μF + 0.1 μF 220 pF 1000 pF 10 μF + 0.1 μF 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) RF IN 0.1 μF 220 pF 1 2 100 pF DNI DNI 100 pF 22 nH 22 nH 3 4 PACKAGE BASE GND Bias Circuit 8 7 6 5 L4 47 nH C4 DNI L5 6.8 nH RF OUT C5 6.8 pF C6 DNI C7 DNI C8 DNI C9 39 pF C10 56 pF Application Schematic - 570MHz to 610MHz VREF VCC 0.1 μF + 10 μF 1000 pF 220 pF 910 Ω 910 Ω 910 Ω DNI DNI 220 pF 0.1 μF 220 pF 1 2 100 pF RF IN 6.8 nH DNI DNI 15 pF 4 PACKAGE BASE GND 1000 pF 10 μF + 0.1 μF 220 pF 1000 pF 10 μF + 0.1 μF Bias Circuit 8 7 6 5 47 nH 1.8 nH RF OUT 220 pF DNI 5.6 pF DNI DNI DNI 5.6 pF 100 pF 3 Application Schematic - 680MHz VREF VCC 0.1 μF + 10 μF 1000 pF 220 pF 910 Ω 910 Ω 910 Ω DNI DNI 220 pF 0.1 μF 220 pF 1 2 47 pF RF IN 5.6 nH DNI DNI 12 pF 4 PACKAGE BASE GND 1000 pF 10 μF + 0.1 μF 220 pF 1000 pF 10 μF + 0.1 μF Bias Circuit 8 7 6 5 47 nH 1.8 nH RF OUT 220 pF DNI 5.6 pF DNI DNI DNI 5.6 pF 33 pF 3 Application Schematic - 880MHz VREF VCC 0.1 μF + 10 μF 1000 pF 220 pF 910 Ω 910 Ω 910 Ω DNI DNI 220 pF 0.1 μF 220 pF 1 2 100 pF RF IN 2.2 nH DNI DNI 9.1 pF 4 PACKAGE BASE GND 1000 pF 10 μF + 0.1 μF 220 pF 1000 pF 10 μF + 0.1 μF 150 nH Bias Circuit 8 7 6 5 47 nH 2.2 nH RF OUT 3 33 pF 15 pF DNI DNI DNI DNI 4.3 pF 100 pF 3-110 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 A9 DS070130 RF3800 Application Schematic - 945MHz VREF VCC 0.1 μF + 10 μF 1000 pF 220 pF 910 Ω 910 Ω 910 Ω DNI DNI 220 pF 0.1 μF 220 pF 1 2 100 pF RF IN 1.2 nH DNI DNI 10 pF 4 PACKAGE BASE GND 1000 pF 10 μF + 0.1 μF 220 pF 1000 pF 10 μF + 0.1 μF 150 nH Bias Circuit 8 7 6 5 47 nH 2.2 nH RF OUT 3 15 pF DNI DNI 4.3 pF DNI DNI 100 pF 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) 100 pF Rev A9 DS070130 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-111 RF3800 Evaluation Board Schematic - 450MHz VREF C14 + C13 0.1 μF 10 μF C12 1000 pF C11 220 pF C24 0.1 μF R1 910 Ω R2 910 Ω C25 220 pF R3 910 Ω R4 DNI R5 DNI VCC 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) C18 220 pF C17 1000 pF C16 + 10 μF C23 0.1 μF C22 220 pF C21 1000 pF C20 + 10 μF C19 0.1 μF 1 2 3 C1 DNI C2 15 pF L2 2.7 nH L3 5.6 nH 4 Bias Circuit 8 7 6 5 L4 47 nH C4 DNI L5 1.8 nH C5 12 pF C6 DNI C7 DNI C8 DNI C9 12 pF C10 220 pF 50 Ω μstrip J1 RF IN 50 Ω μstrip L1 4.7 nH C3 220 pF J2 RF OUT PACKAGE BASE GND 3800406 r1 P1-1 P1 1 VREF P2-1 P2 1 VCC P3 1 GND BANANA JACK BANANA JACK BANANA JACK RF3800 Biasing Table The resistor values shown below are for varied VCC/ICQ conditions. Biasing for higher quiescent current will give increased linearity. “R_Bias”=equivalent R in line with VREF (see values on evaluation board schematic: R1, R2, R3). VCC (V) 8 8 8 8 5 5 5 5 VREF (V) 8 8 8 8 5 5 5 5 R_Bias (Ω) 300 170 105 72 110 48 21 4.9 IREF (mA) 16 25 35 45 16 25 35 45 ICQ (mA) 400 563 632 684 372 493 574 629 3-112 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 A9 DS070130 RF3800 Evaluation Board Layout Board Size 2.0” x 2.0” Board Thickness 0.02”, Board Material Rogers 4350 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Rev A9 DS070130 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-113 RF3800 30.0 S-Parameters 460 MHz 16.0 Gain and Phase versus POUT 460 MHz 6.0 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) S-Parameters (dB) 20.0 14.0 5.0 10.0 12.0 4.0 0.0 10.0 3.0 -10.0 S11 S21 S12 S22 8.0 2.0 -20.0 6.0 1.0 -30.0 4.0 Gain Phase Change 0.0 -40.0 300.0 350.0 400.0 450.0 500.0 550.0 600.0 2.0 15.0 20.0 25.0 30.0 35.0 40.0 -1.0 45.0 Frequency (MHz) POUT (dBm) 55.0 OIP3 versus POUT 460 MHz 2500.0 ICC and Efficiency versus Output Power 460 MHz 55 50 50.0 2000.0 45 40 OIP3 (dBm) 45.0 1500.0 30 25 1000.0 20 15 40.0 35.0 500.0 Icc (mA) PAE (%) 10 5 0 30.0 23.0 24.0 25.0 26.0 27.0 28.0 29.0 30.0 31.0 32.0 0.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 POUT (dBm/tone) Output Power (dBm) Thermal Data 460 MHz 160.0 155.0 14.0 Thermal Resistance 460 MHz Channel Temperature (Baseplate = +85°C) 150.0 145.0 12.0 10.0 140.0 Rth (C/W) 135.0 130.0 125.0 120.0 8.0 6.0 4.0 115.0 110.0 105.0 100.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 0.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 2.0 POUT (dBm) POUT (dBm) 3-114 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 A9 DS070130 Efficiency (%) 35 ICC (mA) Phase Change (°) Gain (dB) RF3800 20.0 19.0 18.0 P1dB and Gain versus Frequency 460 MHz 40.0 39.0 38.0 37.0 18.0 RMS EVM 16.0 14.0 12.0 95% EVM PAE EDGE EVM 460 MHz 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) PAE (%) Small Signal Gain (dB) 17.0 16.0 15.0 14.0 13.0 12.0 Gain small signal 11.0 P1dB 10.0 445.0 450.0 455.0 460.0 465.0 470.0 P1dB (dBm) EVM (%) 36.0 35.0 34.0 33.0 32.0 31.0 30.0 475.0 10.0 8.0 6.0 4.0 2.0 0.0 15.0 20.0 25.0 30.0 35.0 40.0 Frequency (MHz) POUT (dBm) -40.0 CDMA2000 Performance 460 MHz 35.0 -45.0 30.0 -50.0 25.0 ACPR (dBc) -60.0 15.0 -65.0 10.0 -70.0 750KHz offset 1.98MHz offset PAE 5.0 -75.0 15.0 17.0 19.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 0.0 35.0 POUT (dBm) Rev A9 DS070130 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. PAE (%) -55.0 20.0 3-115 RF3800 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 for PFMD components are based on IPC-7351 standards and RFMD empirical data. The pad pattern shown has been developed and tested for optimized assembly at RFMD. The PCB land pattern has been developed to accommodate lead and package tolerances. Since surface mount processes vary from company to company, careful process development is recommended. PCB Metal Land Pattern A = 1.14 x 0.71 B = 1.02 x 0.71 Typ. C = 3.96 x 4.44 Dimensions in mm. 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) 5.93 Pin 1 A 1.27 Typ. B C B B 3.00 5.99 Typ. B B B B 1.90 3.81 Typ. 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 2mil to 3mil expansion to accommodate solder mask registration clearance around all pads. The center-grounding 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. A = 1.30 x 0.86 B = 1.17 x 0.86 Typ. C = 4.11 x 4.60 Dimensions in mm. 5.93 Pin 1 A 1.27 Typ. B C B B 3.00 5.99 Typ. B B B B 1.90 3.81 Typ. 3-116 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 A9 DS070130 RF3800 Thermal Pad and Via Design The DUT must be connected to the PCB backside ground through a low inductance, low thermal resistance path. The required interface is achieved with the via pattern shown below for both low inductance as well as low thermal resistance. The footprint provided below worked well on the RFMD 20mil thick Rogers 4350 PCB and also standard FR4. The vias are 8mil vias that are partially plated through and are finished to 8mils±2mils with a minimum plating of 1.5mil. Failure to place these vias within the DUT mounting area on the PCB in this prescribed manner may result in electrical performance and/or reliability degradation. 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Rev A9 DS070130 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-117 RF3800 Tape and Reel Information Carrier tape basic dimensions are based on EIA481. The pocket is designed to hold the part for shipping and loading onto SMT manufacturing equipment, while protecting the boyd and the solder terminals from damaging stresses. The individual pocket design can vary from vendor to vendor, but wide and pitch will be consistent. Carrier tape is wound or placed on a shipping reel with a diameter of either 330mm (13inches) or 178mm (7inches). The center hub design is large enough to ensure the radius formed by the carrier tape around it does not put unnecessary stress on the parts. Prior to shipping, moisture sensitive parts (MSL level 2a to 5a) are baked and placed into the pockets of the carrier tape. A cover tape is sealed over the top of the entire length of the carrier tape. The reel is sealed in a moisture barrier, ESD bag, which is placed in a cardboard shipping box. It is important to note that unused moisture sensitive parts need to be resealed in the moisture barrier bag. If the reels exceed the exposure limit and need to be rebaked, most carrier tape and shipping reels are not rate as bakeable at 125°C. If baking is required, devices may be baked according to section 4, table 4-1, column 8 of Joint Industry Standard IPC/JEDECJ-STD-033A. The following table provides useful information for carrier tape and reels used for shipping the devices described in this document. RFMD Part Number RF3800TR13 RF3800TR7 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Reel Diameter Inch (mm) 13 (330) 7 (178) Hub Diameter Inch (mm) 4 (102) 2.4 (61) Width (mm) 12 12 Pocket Pitch (mm) 8 8 Feed Single Single Units per Reel 2500 750 Carrier Tape Drawing with Part Orientation Notes: 1. All dimensions are in millimeters (mm). 2. Unless otherwise specified, all dimension tolerances per EIA-481. Ao = 6.70 ± 0.10 Bo = 5.40 ± 0.10 F = 5.50 ± 0.05 Ko = 2.10 ± 0.10 P = 8.00 ± 0.10 W = 12.00 +0.30/-0.10 4.00 ± 0.10 2.00 ± 0.05 Ø1.50±.10 1.75±.10 0.292 ±.013 15 inch Trailer Sprocket holes toward rear of reel Pin 1 Location PART NUMBER YYWW Trace Code PART NUMBER YYWW Trace Code Top View 15 inch Leader F PART NUMBER YYWW Trace Code PART NUMBER YYWW Trace Code W Bo P Ao Ko Direction of Feed 3-118 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 A9 DS070130