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| RF3802GaAs HBT Pre-Driver Amplifier RF3802 GaAs HBT PRE-DRIVER AMPLIFIER RoHS Compliant & Pb-Free Product Package Style: AlN Features 5W Output Power High Linearity 35% Power-Added Efficiency Thermally Enhanced AlN Packaging Broadband Platform Design Approach VCC1 1 VREF 2 RF IN 3 VBIAS 4 Bias Circuit PACKAGE BASE GND 8 RF OUT/VCC2 7 RF OUT/VCC2 6 RF OUT/VCC2 5 RF OUT/VCC2 Applications GaAs HBT Pre-Driver for Basestation Amplifiers Power Amplifier Stage for Commercial Wireless Infrastructure Class AB Operation for GSM/EDGE/CDMA Transmitter Applications Functional Block Diagram Product Description The RF3802 is specifically designed for wireless infrastructure applications. Using a highly reliable GaAs HBT fabrication process, this high-performance dual-stage amplifier achieves high output power over a broad frequency range. The RF3802 amplifier 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 operation. Various evaluation board configurations are available to address a broad range of wireless infrastructure applications: * AMPS/GSM850/EDGE850 * GSM900/EDGE900 * IS-95/CDMA2000/AMPS Ordering Information RF3802 RF3802PCBA-410 RF3802PCBA-411 GaAs HBT Pre-Driver Amplifier Fully Assembled Evaluation Board - GSM850 Fully Assembled Evaluation Board - GSM900 Optimum Technology Matching(R) Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT Si CMOS Si BJT GaN HEMT RF MICRO DEVICES(R), RFMD(R), Optimum Technology Matching(R), Enabling Wireless ConnectivityTM, PowerStar(R), POLARISTM TOTAL RADIOTM and UltimateBlueTM 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. (c)2006, RF Micro Devices, Inc. Rev A6 DS050609 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 1 of 12 RF3802 Absolute Maximum Ratings Parameter Supply Voltage (VCC) Power Control Voltage (VREF) DC Supply Current Input RF Power Output Load VSWR Operating Ambient Temperature Storage Temperature Rating 9 9 2000 23 5:1 +85 +125 Unit VPC V mA dBm C C 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. Parameter Overall 850MHz Band Frequency P1dB Total Efficiency Total Power Added Efficiency Large Signal Power Gain Second Harmonic Third Harmonic Input Return Loss Output Return Loss OIP3 Min. Specification Typ. Max. Unit Condition IREF =22mA, VCC =VBIAS =VREF =8V, Temp=+25C 869 36.0 35.5 34.5 17.5 36.5 36.5 35.5 18.5 894 37.0 39.0 38.0 19.5 -40 -40 MHz dBm dBm % % dB dBc dBc dB dB dBm dBm dBm dBm dB 23dBm/tone 26dBm/tone 28dBm/tone 30dBm/tone IREF =22mA, VCC =VBIAS =VREF =8V, Temp=+25C @ P1dB @ P1dB 20dBm 15 15 41.0 46.0 48.0 49.0 Noise 6.4 2 of 12 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 A6 DS050609 RF3802 Parameter 900MHz Band Frequency P1dB Total Efficiency Total Power Added Efficiency Large Signal Power Gain Second Harmonic Third Harmonic Input Return Loss Output Return Loss OIP3 12 12 15 15 42.0 46.0 46.0 45.0 Noise 46.0 6.4 54.0 920 35.5 34.5 33.5 17 36.5 35.5 34.5 18 960 37.0 37.0 36.5 20 -30 -50 MHz dBm dBm % % dB dBc dBc dB dB dBm dBm dBm dBm dB 23dBm/tone 26dBm/tone 28dBm/tone 30dBm/tone IREF =22mA, VCC =VBIAS =VREF =8V, Temp=+25C @ P1dB @ P1dB 20dBm Specification Typ. Max. Unit Condition Power Supply Power Supply Voltage Supply Current Power Down Current 7 200 8 270 9 350 50 V mA A ICCQ for IREF =22mA VREF =0V, VCC =8V Rev A6 DS050609 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 of 12 RF3802 Pin 1 2 3 4 5 6 7 8 Pkg Base Function VCC1 VREF RF IN VBIAS RF OUT/VCC2 RF OUT/VCC2 RF OUT/VCC2 RF OUT/VCC2 GND Description For input stage. Control for active bias. For input stage. Requires RF match and DC block. Supply for active bias. For output stage. Requires RF match, bias feed and DC block. See pin 5. See pin 5. See pin 5. Must be soldered to ground pad through as short a path as possible. This path also forms the thermal path for minimum TJ. Package Drawing Pin 1 0.005 A -A0.0025 0.200 REF 0.024 0.200 0.180 REF 0.238 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 Dimensions in inches. 0.003 TYP 4 of 12 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 A6 DS050609 RF3802 Evaluation Board Schematic GSM850 (869MHz to 894MHz) VCC R10 1.2 C33 0.1 F + C34 10 F C35 33 pF L4 33 nH VREF C38 33 pF C39 1000 pF C41 0.1 F + C40 10 F R4 360 R5 360 R7 DNI R8 DNI 1 2 3 C18 DNI C19 DNI C20 DNI L5 6.8 nH 4 Bias Circuit 8 7 6 5 C12 1.5 pF C13 33 pF C15 3.6 pF C8 DNI C9 2.7 pF C10 DNI C16 6.8 pF L2 33 nH C5 1000 pF C11 0.1 F C7 33 pF + C6 10 F C48 33 pF C49 1000 pF C51 0.1 F + C50 10 F C27 27 pF J1 RF IN 50 strip C28 3.6 pF C14 15 pF 50 strip J2 RF OUT 3802400 r.- VBIAS C43 33 pF C46 0.1 F C44 + C45 1000 pF 10 F P1 P1-1 1 VREF BANANA JACK P2 P2-1 1 VCC BANANA JACK P3 P3-1 1 VBIAS BANANA JACK P4 1 GND BANANA JACK Evaluation Board Schematic GSM900 (920MHz to 960MHz) VCC R10 1.2 C33 0.1 F + C34 10 F C35 33 pF L4 33 nH VREF C38 33 pF C39 1000 pF C41 0.1 F + C40 10 F R4 360 R5 360 R7 Open R8 Open 1 2 3 C18 Open C19 Open C20 Open L5 6.8 nH 4 Bias Circuit 8 7 6 5 C12 1.5 pF C13 27 pF C15 2 pF C8 Open C9 1 pF C10 Open C16 6.8 pF L2 33 nH C5 1000 pF C11 0.1 F C7 33 pF + C6 10 F C48 33 pF C49 1000 pF C51 0.1 F + C50 10 F C27 22 pF J1 RF IN 50 strip C28 3.6 pF C14 15 pF 50 strip J2 RF OUT 3802401 r.- VBIAS C43 33 pF C46 0.1 F C44 + C45 1000 pF 10 F P1 P1-1 1 VREF BANANA JACK P2 P2-1 1 VCC BANANA JACK P3 P3-1 1 VBIAS BANANA JACK P4 1 GND BANANA JACK Rev A6 DS050609 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 5 of 12 RF3802 Evaluation Board Layout Board Size 2.0" x 2.0" Board Thickness 0.020", Board Material Rogers 4350 6 of 12 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 A6 DS050609 RF3802 GSM850 Evaluation Board S-Parameters 30.0 30.0 GSM900 Evaluation Board S-Parameters 20.0 20.0 10.0 S11 S21 S12 S22 10.0 S11 S21 S12 S22 0.0 0.0 dB -10.0 dB Frequency (MHz) -10.0 -20.0 -20.0 -30.0 -30.0 -40.0 -40.0 -50.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 -50.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 Frequency (MHz) GSM850 Gain Phase versus POUT 25.0 GSM900 Gain Phase versus POUT 25.0 (882 MHz) (940 MHz) 20.0 20.0 Gain (dB)/Phase () Gain (dB) 10.0 Normalized Phase () Gain (dB)/Phase () 15.0 15.0 10.0 Gain (dB) Normalized Phase () 5.0 5.0 0.0 0.0 -5.0 20.0 25.0 30.0 35.0 40.0 -5.0 20.0 25.0 30.0 35.0 40.0 POUT (dBm) POUT (dBm) GSM850 P1dB versus Frequency 40.0 40.0 GSM900 P1dB versus Frequency 35.0 35.0 30.0 30.0 P1dB (dBm) 25.0 25.0 20.0 P1dB (dB) 20.0 15.0 15.0 10.0 10.0 5.0 Pin Pout 5.0 Pin Pout 0.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 0.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 Frequency (MHz) Frequency (MHz) Rev A6 DS050609 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 7 of 12 RF3802 GSM850 OIP3 versus POUT 49.0 48.0 47.0 46.0 GSM900 OIP3 versus POUT 49.0 48.0 47.0 46.0 (Two-Tone 882 MHz) (Two-Tone 940 MHz) OIP3 (dBm) 44.0 43.0 42.0 41.0 40.0 39.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 OIP3 (dBm) 45.0 45.0 44.0 43.0 42.0 41.0 40.0 39.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 POUT per Tone (dBm) POUT per Tone (dBm) GSM850/CDMA2K Current versus POUT 1200.0 1100.0 1000.0 900.0 ICC Total (mA) 800.0 700.0 600.0 500.0 400.0 300.0 200.0 15.0 17.0 19.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 35.0 POUT (dBm) GSM850/CDMA2K Efficiency versus POUT 25.0 20.0 Efficiency (%) 15.0 10.0 5.0 0.0 15.0 17.0 19.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 35.0 POUT (dBm) 8 of 12 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 A6 DS050609 RF3802 882 MHz CDMA2K 9-Channel SR1 ACPL and ALT1 -30.0 -35.0 -40.0 ACPR and ALT1 (dBc) -45.0 -50.0 -55.0 -60.0 -65.0 ACPR ALT1 -70.0 15.0 17.0 19.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 35.0 POUT (dBm) GSM850 Thermal Data 150.0 10.0 9.0 140.0 Thermal Resistance at 940 MHz Channel Temp (Baseplate = +85C) 8.0 7.0 130.0 6.0 5.0 4.0 110.0 3.0 2.0 100.0 PA 1.0 Driver 90.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 0.0 10.0 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 40.0 120.0 Rth (C/W) POUT (dBm) POUT (dBm) GSM900 Thermal Data 150.0 140.0 Channel Temp (Baseplate = +85C) 130.0 120.0 110.0 100.0 PA Driver 90.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 POUT (dBm) Rev A6 DS050609 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 9 of 12 RF3802 PCB Design Requirements PCB Surface Finish The PCB surface finish used for RFMD's qualification process is electroless nickel, immersion gold. Typical thickness is 3inch to 8inch gold over 180inch 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. 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. 10 of 12 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 A6 DS050609 RF3802 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 8mils2mils 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. Rev A6 DS050609 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 11 of 12 RF3802 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 125C. 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 RF3802TR13 RF3802TR7 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 O1.50.10 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 12 of 12 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 A6 DS050609 |
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