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| RF3806GaAs HBT Pre-Driver Amplifier RF3806 GaAs HBT PRE-DRIVER AMPLIFIER RoHS Compliant & Pb-Free Product Package Style: AlN h 3 Features 4W Output Power High Linearity 1500MHz to 2200MHz Operation 5V to 8V Supply with Adjustable Bias VCC1 1 VREF 2 RF IN 3 V_BIAS 4 PACKAGE BASE GND Bias Circuit 8 RF OUT/VCC2 7 RF OUT/VCC2 6 RF OUT/VCC2 5 RF OUT/VCC2 Applications GaAs HBT Linear Amplifier Power Amplifier Stage for Commercial Wireless Infrastructure (DCS, PCS, UMTS) Functional Block Diagram Product Description The RF3806 is a GaAs power amplifier, specifically designed for linear applications. Using a highly reliable GaAs HBT fabrication process, this high-performance two-stage amplifier achieves high output power over a broad frequency range. An evaluation board is available to address UMTS2100 applications. Ordering Information RF3806 RF3806PCK-415 GaAs HBT Pre-Driver Amplifier Fully Assembled Evaluation Board - UMTS2100 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 A3 DS070509 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 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) RF3806 Absolute Maximum Ratings Parameter Supply Voltage (VCC and VBIAS) Rating 8 2870 23 +85 +125 Unit V 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 Maximum Input Power Operating Ambient Temperature Storage Temperature Parameter Overall - UMTS2100 VCC =8V Frequency P1dB Gain (S21) Input Return Loss (S11) Output Return Loss (S22) Min. Specification Typ. Max. Unit Condition 2110 35 17 36 18 -12 -6 47 8 660 730 2170 37 19 MHz dBm dB dB dB dBm V IREF =60mA, VCC =VBIAS =VREF =8V, Temp=+25C Performance with impedance match as per UMTS evaluation board Two-Tone Specification OIP3 23dBm/tone Power Supply Power Supply Voltage Supply Current (ICC +IBIAS) Power Down Current 800 50 mA A ICCQ VREF =0V, VCC =VBIAS =8V IREF =60mA, VCC =VBIAS =VREF =6V, Temp=+25C Performance with impedance match as per UMTS evaluation board VCC =6V Frequency P1dB Gain (S21) 2110 34.5 18 46 6 718 2170 MHz dBm dB dBm V mA ICCQ IREF =60mA, VCC =VBIAS =VREF =5V, Temp=+25C Performance with impedance match as per UMTS evaluation board 21dBm/tone Two-Tone Specification OIP3 Power Supply Power Supply Voltage Supply Current (ICC +IBIAS) VCC =5V Frequency P1dB Gain (S21) 2110 33 18.5 45 2170 MHz dBm dB dBm 20dBm/tone Two-Tone Specification OIP3 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 A3 DS070509 RF3806 Parameter Power Supply Power Supply Voltage Supply Current (ICC +IBIAS) 5 707 V mA ICCQ Min. Specification Typ. Max. Unit Condition 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Overall - PCS1900 VCC =8V Frequency P1dB 1930 37 1990 MHz dBm IREF =60mA, VCC =VBIAS =VREF =8V, Temp=+25C Performance with impedance match as per DCS/PHS/PCS low power linear application schematic Gain (S21) Input Return Loss (S11) Output Return Loss (S22) 18 -14 -8 52 8 660 730 800 50 dB dB dB dBm V mA A ICCQ VREF =0V, VCC =VBIAS =8V IREF =60mA, VCC =VBIAS =VREF =6V, Temp=+25C Performance with impedance match as per DCS/PHS/PCS low power linear application schematic 23dBm/tone Two-Tone Specification OIP3 Power Supply Power Supply Voltage Supply Current (ICC +IBIAS) Power Down Current VCC =6V Frequency P1dB 1930 35 1990 MHz dBm Gain (S21) 18 49 6 713 dB dBm V mA ICCQ IREF =60mA, VCC =VBIAS =VREF =5V, Temp=+25C Performance with impedance match as per DCS/PHS/PCS low power linear application schematic 21dBm/tone Two-Tone Specification OIP3 Power Supply Power Supply Voltage Supply Current (ICC +IBIAS) VCC =5V Frequency P1dB 1930 33.5 1990 MHz dBm Gain (S21) 18.5 49 5 707 dB dBm V mA ICCQ 20dBm/tone Two-Tone Specification OIP3 Power Supply Power Supply Voltage Supply Current (ICC +IBIAS) Rev A3 DS070509 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-115 RF3806 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. See "Theory of Operation" section. 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. Interface Schematic 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Package Drawing -A- Pin 1 0.005 A 0.0025 0.200 REF Shaded circle designates pin 1 location. 0.024 0.198 0.180 REF 0.236 Dimensions in inches. 0.156 0.025 R.008 0.050 TYP 0.028 TYP 0.050 REF 0.0780 MAX 0.020 7 PL 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 A3 DS070509 RF3806 Application Schematic - DCS/PHS/PCS 1800MHz to 2025MHz Low Power Linear Operation 0.1 F + 10 F 0 10 pF 10 pF 1000 pF VCC 0.1 F 10 F + 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) 24 nH VREF 10 pF 1000 pF 0.1 F + 6.8 nH 10 F 270 270 270 270 1000 pF 1000 pF 1 2 10 pF RF IN Open Open 5.6 pF 3 6 5 3.3 pF Open Open Open Open Open Open Open Bias Circuit 8 7 L2 24 nH 7.5 pF 5.6 pF RF OUT 0.1 F 10 pF 10 F + * 4 VBIAS 10 pF 0.1 F 1000 pF 10 F + * PHS/PCS: 1.8 pF DCS: 2.4 pF This schematic for low power linear operation: 21dBm VCC R10 0 C33 0.1 F + C34 10 F C35 10 pF L4 24 nH VREF C38 10 pF C39 1000 pF C41 0.1 F + C40 10 F R4 390 R5 390 R7 430 R8 430 C27 Open C5 1000 pF Bias Circuit 8 7 6 5 L2 24 nH C29 2.4 pF C12 Open C13 6.8 pF C15 0.5 pF C8 1 pF C9 Open C10 Open C18 Open C14 2.7 pF 50 strip RF OUT 3 C18 Open C19 Open C20 1.5 pF 4 C11 0.1 F C7 10 pF C8 + 10 F C48 10 pF C40 1000 pF C51 0.1 F C50 + 10 F 1 2 50 strip RF IN C28 5.1 pF C30 5.1 pF VBIAS C49 10 pF C48 0.1 F C44 1000 pF C45 + 10 F This schematic for high power operation: POUT >27dBm, 5V 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 RF3806 Evaluation Board Schematic - UMTS2100 R10 0 VCC C33 + C34 0.1 F 10 F C35 10 pF L4 24 nH VREF C38 10 pF C39 1000 pF C41 + C40 0.1 F 10 F R4 270 R5 270 R7 270 R8 270 C27 1000 pF C48 10 pF C49 1000 pF C51 0.1 F C50 + 10 F 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) C28 9.1 pF C18 Open C19 Open C20 2.0 pF C30 9.1 pF C5 1000 pF Bias Circuit 8 7 6 5 C29 3.3 pF C12 Open L2 24 nH C26 Open C13 9.1 pF C11 0.1 F C7 10 pF C6 + 10 F 1 2 3 4 C14 9.1 pF C15 Open C8 Open L9 15 nH C10 Open C16 Open 50 strip J1 RF IN 50 strip J2 RF OUT VBIAS C43 10 pF C46 0.1 F C44 1000 pF C45 + 10 F This eval board for low power linear operation: 21dBm In IREF =60mA case, calculated RBIAS was rounded up to nearest 0.5. This to keep IREF at or slightly below 60mA max. 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 A3 DS070509 RF3806 Evaluation Board Layout Board Size 2.0" x 2.0" Board Thickness 0.020", Board Material Rogers 4350 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Rev A3 DS070509 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-119 RF3806 Theory of Operation General biasing considerations can be described using RF3806 UMTS evaluation board as a reference. In actual system, VCC =VBIAS =VREF can be tied together when PA is to remain biased on at all times. For non-constant operation, VCC is tied to VBIAS, and VREF used for turn-on preceding transmit. Table is provided in data sheet for adjusting IREF to desired bias current for various supply voltage levels (more detailed discussion below). RF3806 can be used in frequency bands ranging from 1500MHz to 2200MHz. Depending on specific application, the following parameters and their trade-offs can be considered: linearity, average output power, signal modulation/peak to average ratio (PAR), efficiency, dissipated power, junction temperature (Tj), and wear out MTTF. Looking at two distinct examples will demonstrate how the above mentioned parameters are taken into account. Note that much of the discussed performance can be found in the data sheet area showing graphs. First, consider a UMTS pico cell base station transmitter (case 1). Here RF3806 fills the role of final PA, operating from 21dBm-26dBm POUT. VCC can be run from 5V to 8V. Likewise, bias resistance on VREF line can be set to obtain IREF ranging from 41mA -60mA. The choice of voltage supply and bias is determined by required W-CDMA ACPR spec, desired POUT, and signal PAR. For instance, consider the following: POUT =26dBm, frequency=2110MHz-2170MHz, signal=W-CDMA test model I 64 DPCH, ACPR requirement over temperature=-45dBc at 5MHz offset. The operating condition here (see data sheet graph section) would be VCC =8V and IREF =60mA, using impedance match found on UMTS Evaluation Board. For a lower output power requirement, IREF is kept at 60mA, and VCC reduced to a level below 8V. Sufficient linearity can be obtained at lower POUT, while the decrease in dissipated power yields a lower junction temperature and enhanced MTTF. For thermal considerations, refer to graphs provided for thermal resistance, junction temperature, and MTTF (these three graphs based on RF3806 thermal scan and process reliability data). For the second example (case 2), consider a higher power application, where POUT =34dBm and linearity requirement is substantially reduced from that seen in above example. For this application, we might run IREF =41mA with VCC =8V. RF3806 output load line would be set for maximum efficiency and compression point. The result is a transmit PA which obtains output power spec, while providing high enough efficiency to keep Tj within desired range. Running IREF =41mA avoids unnecessary power dissipation, as higher IREF is used only in lower power case for linearity enhancement. A DCS/PCS application schematic is provided in data sheet for higher power applications, along with corresponding information in section containing graphs. UMTS evaluation board can be converted to the application schematic, with minor changes to input, output, and interstage matches (interstage @VCC1 pin). Also, bias resistors at VREF are scaled for lower IREF =41mA. EDGE ACP plots are provided in the graph section. Note that the matching also covers transmit bands for 1850-1910 CDMA. As a result, this converted application board could also be considered for CDMA booster/repeater. As mentioned above, junction temperature is an important consideration when operating at maximum VCC (8V). The most demanding scenario, case 1 above, will be considered here as an illustration. In the data sheet graph section, refer to graphs of Tj vs POUT, RTH vs POUT, and RF3806 wear out MTTF vs Tj. During thermal scan, RF3806 eval board is affixed to a large, temperature controlled stage, held at ambient. The device is etched open, such that thermal image of die can be taken. Reference temperature is measured at evaluation board to stage interface by thermocouple, placed through a thin groove such that it makes contact with underside eval board GND plane (directly beneath RF3806). Thermocouple measures "reference temperature", from which RTH_JREF (junction to reference) is determined. Evaluation board thermal resistance, RTH_BOARD, has been modeled at 1C/W. Knowing these two values allows us to calculate junction to case thermal resistance of RF3806=RTH_JC =RTH_JREF -RTH_BOARD =RTH_JREF -1 (see graph). Thus, RTH_JC is defined as thermal resistance from junction to GND slug of device. 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) 3-120 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 A3 DS070509 RF3806 At POUT =26dBm, see that Tj=160C for ambient (stage) temperature=85C. At this condition, temperature of case (GND slug) is calculated: TCASE =TREF +PDISS *(RTH_BOARD)=94C+(6.191W)*1C/W=100.2C. Note that TREF was elevated to 94C when stage was set at 85C. Thus, thermal resistance results can be subject to where one defines "ambient". Using MTTF curve, it is seen that MTTF=80 years for 160C junction temperature. In a design where higher MTTF is desired, one option would be to run RF3806 at reduced VCC. Viewing UMTS ACP curves in graph section of data sheet, VCC =6V/25dBm shows equivalent linearity to VCC =8V/26dBm. Reducing POUT specification to 25dBm will allow for higher MTTF while operating at VCC =6V. A practical approximation to Tj at adjusted operating condition can be made. Assume TCASE equal to 100.2C, as with VCC =8V and 26dBm out (conservative estimate). Dissipated power for 6V/25dBm/85C is known from test data to be 4.385W. From data sheet graph, RTH_JC =9.95C/W. Tj is approximated to be: Tj=100.2+4.385*9.95=144C MTTF curve shows >450 years for this Tj. As mentioned, the above analysis is not exact, but does give us a practical way to get an idea of where a condition will fall in terms of Tj and MTTF. Required data to do the calculation: data sheet curves and evaluation board test in temperature chamber (to determine dissipated power). Note that projected Tj vs Pout curves are included with DCS/PCS data (1800MHz-1990MHz high power application schematic), to illustrate the same type of trade offs between operating at 6V and 8V. These curves are approximate, obtained with the following method (called out in above paragraph): 1. UMTS evaluation board was converted to matching seen on DCS/PCS application schematic (changes @ input/output/interstage/bias resistors at VREF). 2. Evaluation board was run in oven at 85C ambient. 3. Dissipated power was calculated at each data point. Using RTH_JREF from data sheet curve, temperature delta to RF3806 junction (Tj) can be obtained. Tj was then plotted, and can be applied to MTTF vs Tj curve. Finally, a description is included here for running two RF3806 in parallel with hybrid combiners. This approach enables design to achieve substantial linearity enhancement for a given POUT, while maintaining low die temperature. In this example, hybrid couplers (combiners) from Anaren (part number XC2100E-03) are used with 2 RF3806 UMTS evaluation boards. The bias condition is VCC =6V, IREF =60mA. ACP performance vs temperature is shown in graph section, which can be compared to that for single PA. RFMD can be contacted to obtain RF3806 qualification report, which adheres to demanding infrastructure standards. 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Rev A3 DS070509 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-121 RF3806 Small Signal Gain UMTS Band (Data taken on UMTS Evaluation Board) 20.0 19.5 51.0 OIP3 versus POUT versus Frequency versus VCC UMTS Band (Data taken on UMTS Evaluation Board) 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Gain (dB) 50.0 19.0 18.5 49.0 OIP3 (dBm) 18.0 17.5 17.0 16.5 16.0 15.5 15.0 2100.0 2110.0 2120.0 2130.0 2140.0 2150.0 2160.0 2170.0 2180.0 Vcc = 8 V Vcc = 6 V Vcc = 5 V 48.0 47.0 46.0 Vcc = 8 V 2110 MHz Vcc = 8 V 2140 MHz Vcc = 8 V 2170 MHz Vcc = 6 V 2110 MHz Vcc = 6 V 2140 MHz Vcc = 6 V 2170 MHz Vcc = 5 V 2110 MHz Vcc = 5 V 2140 MHz Vcc = 5 V 2170 MHz 45.0 44.0 19.0 20.0 21.0 22.0 23.0 24.0 Freq (MHz) P_Tone (dBm) 51.0 OIP3 versus Frequency versus VCC, at 10dB Back-off from OP1dB, UMTS Band (Data taken on UMTS Evaluation Board) OP1dB versus VCC versus Frequency 37.0 36.5 UMTS Band (Data taken on UMTS Evaluation Board) 50.0 36.0 49.0 35.5 48.0 OP1dB (dBm) OIP3 (dBm) 35.0 34.5 34.0 47.0 46.0 33.5 45.0 Vcc = 8 V Vcc = 6 V Vcc = 5 V 2110.0 2120.0 2130.0 2140.0 2150.0 2160.0 2170.0 2180.0 33.0 32.5 2100.0 2110.0 2120.0 2130.0 2140.0 2150.0 2160.0 2170.0 2180.0 Vcc = 8 V Vcc = 6 V Vcc = 5 V 44.0 2100.0 Frequency (MHz) W-CDMA ACP versus POUT versus Temperature Signal=W-CDMA Test Model I 64 DPCH PAR=10.3dB @ 0.01% I REF=60mA VCC=8V (Data taken on UMTS Evaluation Board) Frequency (MHz) W-CDMA ACP versus POUT versus Temperature Signal=W-CDMA Test Model I 64 DPCH PAR=10.3dB @ 0.01% -42.0 -43.0 -44.0 -45.0 ACP @ 5MHz Offset (dBm) -47.0 -48.0 -49.0 -50.0 -51.0 -52.0 -53.0 -54.0 -55.0 -56.0 -57.0 -58.0 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 25 C 2110 MHz 8 V 25 C 2170 MHz 8 V 85 C 2110 MHz 8 V 85 C 2170 MHz 8 V -40 C 2110 MHz 8 V -40 C 2170 MHz 8 V ACP @ 5MHz Offset (dBc) -46.0 -40.0 -41.0 -42.0 -43.0 -44.0 -45.0 -46.0 -47.0 -48.0 -49.0 -50.0 -51.0 -52.0 -53.0 -54.0 -55.0 -56.0 -57.0 -58.0 -59.0 -60.0 -61.0 -62.0 -63.0 22.0 22.5 I REF=60mA VCC=6V (Data taken on UMTS Evaluation Board) 25C 2110 MHz 6 V 25C 2170 MHz 6 V 85C 2110 MHz 6 V 85 C 2170 MHz 6 V -40 C 2110 MHz 6 V -40 C 2170 MHz 6 V 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 POUT (dBm) POUT (dBm) 3-122 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 A3 DS070509 RF3806 W-CDMA ACP versus POUT versus Temperature Signal=W-CDMA Test Model I 64 DPCH PAR=10.3dB @ 0.01% Small Signal Gain - PCS Band 20.0 19.5 19.0 18.5 18.0 17.5 17.0 16.5 (Data taken on Eval Board configured as per DCS/PHS/PCS Application Schematic for Low Power Linear Operation) ACP @ 5MHz Offset (dBc) -53.0 -54.0 -55.0 -56.0 -57.0 -58.0 -59.0 -60.0 -61.0 21.0 21.5 22.0 22.5 23.0 23.5 25C 2110 MHz 5 V 25C 2170 MHz 5 V 85C 2110 MHz 5 V 85 C 2170 MHz 5 V -40 C 2110 MHz 5 V -40 C 2170 MHz 5 V 24.0 24.5 25.0 Gain (dB) -49.0 -50.0 -51.0 -52.0 16.0 15.5 15.0 1920.0 1930.0 1940.0 1950.0 1960.0 1970.0 1980.0 1990.0 2000.0 Vcc = 8 V Vcc = 6 V Vcc = 5 V POUT (dBm) OIP3 versus POUT versus Freq versus VCC - PCS Band (Data taken on Eval Board configured as per DCS/PHS/PCS Application Schematic for Low Power Linear Operation) Frequency (MHz) OIP3 versus Frequency versus VCC, at 10dB Back-off from OP1dB PCS Band (Data taken on Eval Board Configured as per DCS/PHS/PCS Application Schematic for Low Power Linear Operation.) 55.0 55.0 54.0 54.0 53.0 53.0 OIP3 (dBm) OIP3 (dBm) 52.0 52.0 51.0 51.0 50.0 Vcc = 8 V 1930 MHz Vcc = 8 V 1960 MHz Vcc = 8 V 1990 MHz Vcc = 6 V 1930 MHz Vcc = 6 V 1960 MHz Vcc = 6 V 1990 MHz Vcc = 5 V 1930 MHz Vcc = 5 V 1960 MHz Vcc = 5 V 1990 MHz 20.0 21.0 22.0 23.0 24.0 50.0 49.0 49.0 Vcc = 8 V Vcc = 6 V Vcc = 5 V 1930.0 1940.0 1950.0 1960.0 1970.0 1980.0 1990.0 2000.0 48.0 48.0 47.0 19.0 47.0 1920.0 P_Tone (dBm) OP1dB versus VCC versus Freq - PCS Band (Data taken on Eval Board configured as per DCS/PHS/PCS Application Schematic for Low Power Linear Operation) Frequency (MHz) CDMA2K ACP versus POUT versus Temperature, Signal=CDMA2K 9 Channel SR1 PAR=8.5dB @ 0.01% IREF=60mA VCC=8V (Data taken on Eval Board configured as per DCS/PHS/PCS Application Schematic for low power linear operation) 37.5 37.0 36.5 -50.0 -52.0 -54.0 -56.0 ACP @ 750kHz Offset (dBc) -58.0 -60.0 -62.0 -64.0 -66.0 -68.0 -70.0 -72.0 -74.0 -76.0 -78.0 25 C 1930 MHz 8 V 25 C 1990 MHz 8 V 85 C 1930 MHz 8 V 85 C 1990 MHz 8 V -40 C 1930 MHz 8 V -40 C 1990 MHz 8 V 36.0 OP1dB (dBm) 35.5 35.0 34.5 34.0 33.5 33.0 1920.0 1930.0 1940.0 1950.0 1960.0 1970.0 1980.0 1990.0 2000.0 Vcc = 8 V Vcc = 6 V Vcc = 5 V -80.0 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 Frequency (MHz) POUT (dBm) Rev A3 DS070509 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-123 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) -41.0 -42.0 -43.0 -44.0 -45.0 -46.0 -47.0 -48.0 IREF=60mA VCC=5V (Data taken on UMTS Evaluation Board) 3 RF3806 CDMA2K ACP versus POUT versus Temperature, Signal=CDMA2K 9 Channel SR1 PAR=8.5dB @ 0.01% IREF=60mA VCC=6V (Data taken on Eval Board configured as per DCS/PHS/PCS Application Schematic for low power linear operation) CDMA2K ACP versus POUT versus Temperature, Signal=CDMA2K 9 Channel SR1 PAR=8.5dB @ 0.01% I REF=60mA VCC=5V (Data taken on Eval Board configured as per DCS/PHS/PCS Application Schematic for low power linear operation) -50.0 -52.0 -54.0 -50.0 -52.0 -54.0 -56.0 ACP @ 750kHz Offset (dBc) 3 ACP @ 750kHz (dBc) -56.0 -58.0 -60.0 -62.0 -64.0 -66.0 -68.0 -70.0 -72.0 -74.0 -76.0 -78.0 -80.0 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 25C 1930 MHz 6 V 25C 1990 MHz 6 V 85C 1930 MHz 6 V 85 C 1990 MHz 6 V -40 C 1930 MHz 6 V -40 C 1990 MHz 6 V -58.0 -60.0 -62.0 -64.0 -66.0 -68.0 -70.0 -72.0 -74.0 -76.0 -78.0 -80.0 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 25C 1930 MHz 5 V 25C 1990 MHz 5 V 85C 1930 MHz 5 V 85 C 1990 MHz 5 V -40 C 1930 MHz 5 V -40 C 1990 MHz 5 V GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) POUT (dBm) DCS/PCS EDGE ACP VCC=8V IREF=41mA (See DCS/PCS High Power Application Schematic, 1800MHz to 1990MHz) POUT (dBm) DCS/PCS EDGE ACP VCC=6V IREF=41mA (See DCS/PCS High Power Application Schematic, 1800MHz to 1990MHz) -30.0 -35.0 -40.0 -45.0 1800 MHz Vcc = 8 V 200 kHz 1800 MHz Vcc = 8 V 400 kHz 1800 MHz Vcc = 8 V 600 kHz 1880 MHz Vcc = 8 V 200 kHz 1880 MHz Vcc = 8 V 400 kHz 1880 MHz Vcc = 8 V 600 kHz 1930 MHz Vcc = 8 V 200 kHz 1930 MHz Vcc = 8 V 400 kHz 1930 MHz Vcc = 8 V 600 kHz 1990 MHz Vcc = 8 V 200 kHz 1990 MHz Vcc = 8 V 400 kHz 1990 MHz Vcc = 8 V 600 kHz -30.0 -35.0 -40.0 -45.0 1800 MHz 1800 MHz 1800 MHz 1880 MHz 1880 MHz 1880 MHz 1930 MHz 1930 MHz 1930 MHz 1990 MHz 1990 MHz 1990 MHz Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc = = = = = = = = = = = = 6V 6V 6V 6V 6V 6V 6V 6V 6V 6V 6V 6V 200 kHz 400 kHz 600 kHz 200 kHz 400 kHz 600 kHz 200 kHz 400 kHz 600 kHz 200 kHz 400 kHz 600 kHz EDGE ACP (dBc) -50.0 -55.0 -60.0 -65.0 -70.0 -75.0 -80.0 -85.0 26.0 EDGE ACP (dBc) 31.0 32.0 33.0 34.0 35.0 -50.0 -55.0 -60.0 -65.0 -70.0 -75.0 -80.0 -85.0 27.0 28.0 29.0 30.0 26.0 27.0 28.0 29.0 30.0 31.0 32.0 33.0 34.0 35.0 POUT (dBm) POUT (dBm) DCS/PCS Projected Junction Temperature at 85C Ambient DCS/PCS OP1dB IREF=41mA (See DCS/PCS High Power Application Schematic, 1800MHz to 1990MHz) 38.0 37.5 37.0 OIP3 (dBm) 36.5 36.0 35.5 35.0 Vcc = 8 V Vcc = 6 V 34.5 34.0 1780.0 1830.0 1880.0 1930.0 1980.0 174.0 172.0 170.0 168.0 166.0 164.0 162.0 160.0 158.0 156.0 154.0 152.0 150.0 148.0 146.0 144.0 142.0 140.0 138.0 136.0 134.0 132.0 130.0 (See Theory of Operation section, and DCS/PCS High Power Application Schematic, 1800MHz to 1990MHz) I REF=41mA Vcc = 8 V 1800 MHz Vcc = 8 V 1880 MHz Vcc = 8 V 1930 MHz Vcc = 8 V 1990 MHz Vcc = 6 V 1800 MHz Vcc = 6 V 1880 MHz Vcc = 6 V 1930 MHz Vcc = 6 V 1990 MHz Tj (C) 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 P_Tone (dBm) POUT (dBm) 3-124 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 A3 DS070509 RF3806 UMTS Evaluation Boards in Hybrid Coupler Configuration: Test Signal=W-CDMA Test Model I, 64 DPCH VCC=6V, IREF=60mA Wear Out MTTF versus Tj (See Theory of Operation section) 500.0 475.0 450.0 425.0 400.0 375.0 350.0 325.0 300.0 275.0 250.0 225.0 200.0 175.0 150.0 125.0 100.0 75.0 50.0 25.0 0.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 -42.0 -44.0 -46.0 -48.0 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Tj (C) (See Theory of Operation section for details) ACP @ 5 MHz (dBc) -52.0 -54.0 -56.0 -58.0 -60.0 -62.0 -64.0 25.0 25.5 26.0 26.5 27.0 27.5 28.0 28.5 29.0 29.5 25C 2110 MHz 25C 2170 MHz -40C 2110 MHz -40C 2170 MHz 85 C 2110 MHz 85C 2170 MHz POUT (dBm) UMTS VCC=8V and IREF=60mA, Tj versus POUT @ 85C Ambient (See Theory of Operation section for details) MTTF (Years) Rth (C/W) -50.0 UMTS VCC=8V and IREF=60mA, Rth versus POUT @ 85C Ambient 12.0 170.0 169.0 168.0 167.0 166.0 165.0 164.0 163.0 162.0 161.0 160.0 159.0 158.0 157.0 156.0 155.0 154.0 153.0 152.0 151.0 150.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 11.5 11.0 Tj (C) 10.5 10.0 9.5 Rth_jref Rth_jc 9.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 POUT (dBm) POUT (dBm) Rev A3 DS070509 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-125 RF3806 DCS/PCS High Power Application Schematic, Typical Response 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) 3-126 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 A3 DS070509 RF3806 PCS/PHS/PCS Low Power Linear Application Schematic, Typical Response (Input matched for PCS, see data sheet schematic) 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Rev A3 DS070509 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-127 RF3806 UMTS Evaluation Board Typical Response 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) 3-128 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 A3 DS070509 RF3806 UMTS Evaluation Boards in Hybrid Coupler Configuration, Typical Response 3 GENERAL PURPOSE AMPLIFIERS (LNAs, HPAs, LINEAR AMPS) Rev A3 DS070509 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3-129 RF3806 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 are based on IPC-SM-782 standards when possible. The pad pattern shown has been developed and tested for optimized assembly at RFMD; however, it may require some modifications to address company specific assembly processes. The PCB land pattern has been developed to accommodate lead and package tolerances. 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. 3-130 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 A3 DS070509 |
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