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| RF5152 3V TO 3.6V, 2.4GHz TO 2.5GHz LINEAR POWER AMPLIFIER Package Style: QFN, 16-Pin, 3 mm x 3 mm VC1 VC2 NC 16 15 14 13 12 RF OUT/ VC3 Features Single Power Supply 3.0V to 3.6V 34dB Typical Small Signal Gain 50 Input and Interstage Matching 2400MHz to 2500MHz Frequency Range +18dBm, 2.5%EVM (typ.), 130mA@VCC =3.3V NC 1 NC Match RF IN 2 Match Match 11 RF OUT RF IN 3 10 RF OUT Bias NC 4 5 VCC 6 VB1/ VB2 7 VB3 8 NC 9 PDETECT Applications IEEE802.11b/g/n WLAN Applications 2.5GHz ISM Band Applications Commercial and Consumer Systems Portable Battery-Powered Equipment Spread-Spectrum and MMDS Systems Functional Block Diagram Product Description The RF5152 is a linear, medium-power, high-efficiency, three-stage amplifier IC designed specifically for battery-powered WLAN applications such as PC cards, mini PCI, and compact flash applications. The device is manufactured on an advanced InGaP Gallium Arsenide Heterojunction Bipolar Transistor (HBT) process, and has been designed for use as the final RF amplifier in 2.5GHz OFDM and other spreadspectrum transmitters. The device is provided in a 3mmx3mm, 16-pin, QFN with a backside ground. The RF5152 is designed to maintain linearity over a wide range of supply voltages and power outputs. Ordering Information RF5152 RF5152PCBA-41X 3V to 3.6V, 2.4GHz to 2.5GHz Linear Power Amplifier Fully Assembled Evaluation Board 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 A10 DS061221 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 10 RF5152 Absolute Maximum Ratings Parameter Supply Voltage Power Control Voltage (VREG) DC Supply Current Input RF Power Operating Ambient Temperature Storage Temperature Moisture Sensitivity Rating -0.5 to +5.0 -0.5 to +3.5 600 +5 -10 to +85 -40 to +150 JEDEC Level 2 Unit V VDC 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). Parameter Overall Frequency Output Power EVM* IP3 Gain Gain Variance Input Impedance Output VSWR Min. Specification Typ. Max. Unit Condition Temperature=+25C, VCC =3.3V, VREG =2.8V, Frequency=2450MHz, pulsed at 1% to 100% duty cycle, circuit per evaluation board schematic 2.40 18 2.5 33 32 49 34 50 2.50 GHz IEEE802.11g IEEE802.11n IEEE802.11g modulation, 54Mbit/s, 64QAM, OFDM modulation 3.3 37 1.5 51 10:1 % dBm dB dB RMS, mean -11dBm Pin -15C to +85C Internally Matched Input and Interstage The PA is stable, no spurs above -43dBm Power Detector (P_detect) POUT =8dBm POUT =18dBm 0.7 3.0 2.7 85 45 1 300 0.2 0.9 3.3 2.8 130 75 2 -15 700 0.3 1.1 3.6 3.0 170 105 6 -10 1000 VDC VDC V VDC mA mA mA dB nS Output stable to within 90% of final gain RF POUT =+18dBm, VCC =3.3V, 54Mbps OFDM <2.5% EVM VCC =+3.3VDC; RF In=OFF; VREG OFF VCC =3.3V Power Supply Operating Voltage VREG (Bias) Voltage (VB1/VB2, VB3) Current Consumption Quiescent Current VREG (Bias) Current (Total) Input Return Loss Turn-on Time** Notes: *The EVM specification is obtained with a signal generator that has an EVM floor of less than 0.7%. **The PA must operate with gated bias voltage input at 1% to 99% duty cycles without any EVM or other parameter degradation. 2 of 10 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 A10 DS061221 RF5152 Pin 1 2 3 4 5 6 7 8 9 10 Function NC RF IN RF IN NC VCC VB1/VB2 VB3 NC PDETECT RF OUT Description Not connected. May be connected to ground (GND). RF input. See evaluation board schematic for details. RF input. See evaluation board schematic for details. Not connected. Note: Connection of VC1 at this pin will not damage the RF5152 or adversely affect RF5152 performance. Supply voltage for the bias reference and control circuits. May be connected with VC1, VC2 and VC3 with a single-supply voltage as long as VCC does not exceed 3.3VDC in this configuration. Bias current control voltage for the first and second stages. Bias current control voltage for the third stage. Not connected. Provides an output voltage proportional to the output RF level. RF output. The output requires external matching components which consist of a one or two shunt capacitors and a series capacitor for DC blocking. BIAS RF OUT Interface Schematic 11 12 RF OUT RF OUT/ VC3 NC VC2 NC VC1 GND Same as pin 10. RF output and bias for the output stage. The power supply for the output transistor needs to be supplied to this pin. This can be done through a quarter-wave (o/4) length microstrip line that is RF grounded at the other end, or through an RF inductor that supports the required DC current. See evaluation board schematic. Not connected. May be connected to ground (GND). Second stage power supply input. Connect as shown on evaluation board schematic. Not connected. May be connected to ground (GND). First stage power supply input. Connect as shown on evaluation board schematic. Ground connection. The back side of the package should be connected to the ground plane through as short a connection as possible (e.g., PCB vias under the device are required). See pin 10. See pin 10. 13 14 15 16 Pkg Base Rev A10 DS061221 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 10 RF5152 Package Drawitng 0.10 C A -A0.05 C 3.00 2 PLCS 1.50 TYP 2 PLCS 0.90 0.85 0.70 0.65 0.10 C B 0.05 0.00 3.00 12 MAX 2 PLCS 0.10 C B -B- 1.37 TYP 2 PLCS -C- SEATING PLANE 2.75 SQ 0.10 M C A B 0.10 C A 0.60 0.24 TYP 0.30 0.18 PIN 1 ID R.20 1.65 SQ. 1.35 0.50 0.30 Dimensions in mm. Shaded lead is pin 1. 0.50 Pin Out VC1 VC2 NC NC 13 16 15 14 NC 1 12 RF OUT/VCC3 RF IN 2 11 RF OUT RF IN 3 10 RF OUT NC 4 9 PDETECT 5 VCC 6 VB1/VB2 7 VB3 8 NC 4 of 10 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 A10 DS061221 RF5152 Theory of Operation and Application Information The RF5152 is a three-stage power amplifier (PA) with a minimum gain of 32dB (34dB typical) in the 2.4GHz to 2.5GHz Industrial, Scientific, and Medical (ISM) band. The RF5152 has a 50 internal input and interstage match. Only the RF5152 output stage requires matching. The RF5152 is designed primarily for IEEE802.11g/n wireless local area network (WLAN) applications where the available supply voltage and current are limited. This amplifier will operate to and below the lowest expected voltage made available by a typical PC Card (PCMCIA or CardBus) slot in a laptop personal computer (PC). The RF5152 maintains required linearity at decreased supply voltages. The RF5152 operates from a single supply voltage of 3.0VDC to 3.6VDC to deliver specified performance. Power control is provided through two (2) bias control input pins (VB1/VB2 and VB3). In most applications these two (2) bias control input pins are connected together and employed as a single control input. The RF5152 has been primarily characterized with a VB voltage of 2.8VDC. However, the RF5152 will operate from a wide range of bias control voltages and within a wide range of frequencies (typically 1800MHz to 2800MHz). If a bias control voltage other than 2.8VDC is preferred or if a different frequency range (other than 2.4GHz to 2.5GHz) is desired, please contact RFMD Sales or Applications Engineering for assistance. Though not difficult to implement to achieve state-of the-art performance, the RF5152 is employed at frequencies greater than 2GHz, where care in circuit layout and component selection is advisable. Of primary concern with RF5152 PCB layout is the selection and placement of output matching components (RF5152PCBA bill of materials (BOM) is available upon request). High-Q (quality factor) capacitors and inductors are not required in every RF5152 based design; however, it is highly recommended that the RF5152PCBA evaluation board BOM be followed exactly for all initial end product designs. Upon initial baseline of RF5152 based PCB performance, less costly (Lower-Q) output matching circuit components may be substituted and evaluated against the initial design performance. RFMD experience indicates that end product FTY improvements more than offset the cost difference between "High-Q" and "Low-Q" components. There is no required matching on the RF5152 input or interstage circuits. Only the RF5152 output stage requires matching allowing the RF5152 to be implemented in applications requiring the fewest end product bill of materials (BOM) parts count and lowest BOM cost. The input stage requires a DC-blocking capacitor. In most cases the capacitor used as part of the RF5152 output matching circuit is also employed to accomplish DC-blocking. The RF5152PCBA evaluation board (available from RF Micro Devices, Inc. (RFMD)) is optimized for 3.3VDC supply input. The output matching capacitor is C10 which is located approximately 120mils from the IC (as shown on the RF5152PCBA Evaluation Board Schematic). The capacitor C10 is selected in value and positioned with reference to 50 transmission line segment TL1. Transmission line segment TL1 should be duplicated as closely as possible in specified length and thickness in any customer PCB layout. Due to PCB material variation (e.g., FR4) and PCB manufacturer variations, the customer may benefit from small adjustments made to the length of TL1 when the RF5152PCBA evaluation board is duplicated to produce an end product PCB design. The initial PCB layout should include exposed ground area near C10 to allow ease of RF5152 output circuit optimization. Smith Chart-based design tools may be used to assist in determining the desired capacitor value and transmission line physical characteristics. Note that the use of a single capacitor output circuit match will result in a more sensitive match and slightly reduced RF5152 bandwidth. In this configuration the RF5152 will exhibit sufficient output spectrum bandwidth to meet IEEE802.11b/g requirements when matched properly. For best results, the RF5152PCBA evaluation board circuit layout should be copied as closely as possible. In particular, the RF5152PCBA evaluation board ground layout, ground vias, and output matching components and location should be copied without deviation. Other PCB layout configurations may provide acceptable RF5152 performance; however, the end product design process will be faster and manufacturing first time yield (FTY) better if the RF5152PCBA evaluation board design is followed. RFMD provides RF5152PCBA design and Gerber files upon request. Rev A10 DS061221 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 10 RF5152 Evaluation Board Schematic - IEEE802.11b/g VCC VCC R1 C4 1 F C6 1 nF P2-3 L4 10 nH L5 22 nH C9 1 nF P2-4 P2-1 P2 1 2 3 4 HDR_1x4 P3 P3-1 1 VCC BANANA JACK P4 1 GND BANANA JACK J2 RF OUT PDETECT GND VREG3 VREG1/2 16 1 15 14 13 12 L6 6.8 nH Coilcraft 140 mils 207 mils from C10 2 J1 RF IN 3 11 C10 2.0 pF C11 0.7 pF C12 10 pF 10 4 5 C3 1000 pF C13 1000 pF R2 56 R3 100 6 7 8 9 C5 330 pF 5152400 r- PDETECT P1 P1-1 1 2 HDR_1X2 VCC GND R1 0 27 Application BT, 802.11 b Above and 802.11g VCC VREG1/2 VREG3 Notes: 1. Populate to tie VREG1/2 and VREG3 together for one power supply. * All measurements are edge to edge from the IC. Components labeled with a "*" may not be needed on the eval board. 6 of 10 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 A10 DS061221 RF5152 Evaluation Board Layout Board Size 2.0" x 2.0" Board Thickness 0.031", Board Material FR-4, Multi-Layer Rev A10 DS061221 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 10 RF5152 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 RFMD 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 = 0.64 x 0.28 (mm) Typ. B = 0.28 x 0.64 (mm) Typ. C = 1.50 (mm) Sq. Dimensions in mm. 1.50 Typ. 0.50 Typ. Pin 16 B Pin 1 B B B Pin 12 A 0.50 Typ. A C A A 0.55 Typ. B B B B A A A A 0.75 Typ. 1.50 Typ. Pin 8 0.55 Typ. 0.75 Typ. Figure 1. PCB Metal Land Pattern (Top View) 8 of 10 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 A10 DS061221 RF5152 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 = 0.74 x 0.38 (mm) Typ. B = 0.38 x 0.74 (mm) Typ. C = 1.60 (mm) Sq. Dimensions in mm. 0.50 Typ. Pin 16 1.50 Typ. B Pin 1 B B B Pin 12 0.50 Typ. A A C A A A A A B B B B Pin 8 0.75 Typ. 1.50 Typ. 0.55 Typ. 0.55 Typ. A 0.75 Typ. Figure 2. PCB Solder Mask Pattern (Top View) Thermal Pad and Via Design The PCB land pattern has been designed with a thermal pad that matches the die paddle size on the bottom of the device. Thermal vias are required in the PCB layout to effectively conduct heat away from the package. The via pattern has been designed to address thermal, power dissipation and electrical requirements of the device as well as accommodating routing strategies. The via pattern used for the RFMD qualification is based on thru-hole vias with 0.203mm to 0.330mm finished hole size on a 0.5mm to 1.2mm grid pattern with 0.025mm plating on via walls. If micro vias are used in a design, it is suggested that the quantity of vias be increased by a 4:1 ratio to achieve similar results. Rev A10 DS061221 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 10 RF5152 ACP versus POUT -20.0 -25.0 1.2 1.4 PDETECT versus POUT -30.0 -35.0 1.0 ACP (dBm) PDETECT (V) ACP1 2400MHz ACP1 2450MHz ACP1 2500MHz 2400MHz ACP2 2450MHz ACP2 2500MHz ACP2 12.0 14.0 16.0 18.0 20.0 22.0 24.0 -40.0 -45.0 -50.0 -55.0 -60.0 -65.0 -70.0 10.0 0.8 0.6 0.4 0.2 2400MHz 2450MHz 2500MHz 0.0 5.0 10.0 15.0 20.0 0.0 Output Power (dBm) Output Power (dBm) Operating Current versus POUT 0.16 5.0 4.5 4.0 0.12 3.5 0.10 3.0 2.5 2.0 1.5 0.04 1.0 0.02 2400MHz 2450MHz 2500MHz 5.00 10.00 15.00 20.00 0.5 0.0 0.0 5.0 EVM versus POUT 0.14 0.08 0.06 EVM (%) ICC (A) 2400MHz 2450MHz 2500MHz 10.0 15.0 20.0 0.00 0.00 Output Power (dBm) Output Power (dBm) 10 of 10 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 A10 DS061221 |
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