RF2860PCBA-41X

RF2860PCS CDMA Low Noise Amplifier/Mixer Broadband Downconverter RF2860 PCS CDMA LOW NOISE AMPLIFIER/MIXER BROADBAND DOWNCONVERTER RoHS Compliant & Pb-Free Product Package Style: QFN, 16-Pin, 3x3 TX BUFF ENAB ENABLE LO OUT 14 Features LNA Noise Figure=1.3dB (KPCS) Stepped LNA Gain Control Integrated TX LO Buffer Amplifier Adjustable IIP3 versus Current for both LNA and Mixer Blocks All Pins ESD Protected LNA GAIN 1 LNA IN 2 GND 3 LNA OUT 4 16 15 VCC 13 12 LO IN 11 GND 10 IF OUT9 IF OUT+ 8 RF VCC 5 ISET2 6 ISET1 7 MIX IN Applications CDMA Korean PCS Systems CDMA US PCS Systems IMT-2000 and 2.4GHz Band Applications GPS Applications General Purpose Downconverter Commercial and Consumer Systems Functional Block Diagram Product Description The RF2860 is a broadband receiver front-end designed for CDMA PCS applications. The broadband design makes it a great solution as well for GPS, IMT-2000 and 2.4GHz applications. It is designed to amplify and downconvert RF signals, while providing 21.5dB of stepped gain control range. Features include digital control of LNA gain, TX buffer/enable, and power down mode. Another feature of the chip is the ability to set the bias point and RF performance of the LNA and mixer through the ISET1 and ISET2 resistors respectively. Noise figure, IIP3, and gain are designed to exceed the IS-98 interim standard requirement for CDMA PCS communications. The IC is manufactured on an advanced Silicon Germanium Bi-CMOS process and is in a 3mmx3mm, 16-pin, leadless chip carrier. Ordering Information RF2860 RF2860PCBA-41X PCS CDMA Low Noise Amplifier/Mixer Broadband Downconverter 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 DS050902 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 20 RF2860 Absolute Maximum Ratings Parameter Supply Voltage Input LO and RF Levels Operating Ambient Temperature Storage Temperature Rating -0.5 to +5.0 +6 -40 to +85 -40 to +150 Unit VDC 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 RF Frequency Range IF Frequency Range Min. Specification Typ. 1575 to 2170 Max. Unit MHz Condition T = 25°C, VCC =2.75V 0.1 2.65 1.8 2.75 400 3.15 0.4 10 MHz V V V μA ENABLE=0 Freq=1930MHz to 1990MHz Freq=1840MHz to 1870MHz Freq=1575.42MHz Freq=2110MHz to 2170MHz LNA 50 Ω match Power Supply Supply Voltage Logic High Logic Low Power Down Current US PCS Band Korean PCS Band GPS Band IMT-2000 Band LNA (On) - KPCS Gain Noise Figure Input IP3 Current Isolation +6.0 14.0 16.5 1.3 +8.0 6.5 20 13.5 +6.0 16.0 1.4 +8.0 6.5 30 14.75 17.25 1.2 +5.0 6.0 20 12.0 14.5 1.4 +8.0 6.0 15.5 18.25 17.0 1.6 17.5 1.5 dB dB dBm mA dB LNA (On) - US PCS Gain Noise Figure Input IP3 Current Isolation dB dB dBm mA dB LNA 50 Ω match LNA (On) - GPS Band Gain Noise Figure Input IP3 Current Isolation dB dB dBm mA dB LNA 50 Ω match LNA (On) - IMT-2000 Band Gain Noise Figure Input IP3 Current dB dB dBm mA LNA 50 Ω match 2 of 20 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 DS050902 RF2860 Isolation 20 dB Rev A9 DS050902 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 20 RF2860 Parameter LNA (Off) - US PCS, KPCS, GPS, IMT-2000 Gain Noise Figure Input IP3 Current Isolation +20.0 -6.5 -5.0 5.0 +25.0 0 4 -3.5 6.0 dB dB dBm mA dB Min. Specification Typ. Max. Unit Condition US PCS Band, Korean PCS Band, GPS Band, IMT-2000 Band, cont’d Mixer - KPCS/US PCS Gain Noise Figure Input IP3 Current LO to RF Isolation 36 16.5 18.5 7.5 -2.0 16.0 36 11.5 13.5 8.5 0.0 16.0 36 36 40 30 35 1 40 15.0 20.0 +1.0 12.0 14.0 7.0 +3.0 17.5 15.5 8.0 dB dB dBm mA dB dB dB dBm mA dB dB dB dBm mA dB dB dB dB dB pF See note. Mixer - GPS Gain Noise Figure Input IP3 Current LO to RF Isolation Mixer - IMT-2000 Gain Noise Figure Input IP3 Current LO to RF Isolation Other LO-IF Isolation RF-IF Isolation LNA Out to Mixer In Isolation LO-LNA In Isolation, Any State Control Lines Input Capacitance LNA GAIN, ENABLE, TX BUFF ENAB Local Oscillator Input KPCS, US PCS, GPS, IMT-2000 Input Power Input Frequency -10 1391 -4 0 2360 dBm MHz IF=183.6MHz/210.38MHz/220.38MHz 4 of 20 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 DS050902 RF2860 Parameter TX (Local Oscillator) Buffer PCS Output Power Output Frequency Current Consumption -11 1600 2 -7 2300 dBm MHz mA Single-ended 50 Ω load Min. Specification Typ. Max. Unit Condition NOTE: Mixer performance can be changed with external IF load/tuning. Rev A9 DS050902 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 20 RF2860 LNA Performance versus Current (As a function of ISET1 Resistance) Gain (dB) 15.6 15.7 15.9 16.1 16.2 16.4 16.4 IIP3 (dBm) 7.3 9.7 16.8 12.3 10.6 9.6 9.4 Noise Figure (dB) 1.4 1.4 1.4 1.4 1.4 1.4 1.4 ISET1 Resistance (kΩ) 36 33 30 27 24 22 20 Current (mA) 4.6 4.9 5.4 6.1 6.7 7.3 7.9 Mixer Performance versus Current (As a function of ISET2 Resistance) Gain (dB) 14.2 14.2 14.1 14.0 13.8 13.8 13.5 IIP3 (dBm) 4.0 3.7 3.5 2.9 2.6 2.4 1.8 Noise Figure (dB) 6.7 6.6 6.5 6.4 6.4 6.3 6.3 ISET2 Resistance (kΩ) 6.8 7.5 8.3 9.1 10.0 11.0 12.0 Current (mA) 25.6 24.6 23.9 22.8 22.2 21.8 20.7 Evaluation Board Current Measurement ENABLE US PCS Band Korean PCS Band LNA On, TX Buffer Off LNA Bypassed, TX Buffer Off GPS Band LNA On, TX Buffer Off LNA Bypassed, TX Buffer Off IMT-2000 Band LNA On, TX Buffer Off LNA Bypassed, TX Buffer Off NOTES: All IDC current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode). TX Buffer On: Add 2mA to total current. 1 1 1 0 0 0 24.5 18.5 1 1 1 0 0 0 24.5 18.5 1 1 1 0 0 0 27.5 21.0 LNA GAIN TX BUFF ENAB IDC (mA) 6 of 20 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 DS050902 RF2860 Cascaded Performance (Typical Values for VCC =2.75V) NOTE: All total current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode). Parameter Cascaded: Gain (dB) Noise Figure (dB) Input IP3 (dBm) LO to IF Isolation (dB) IF1 to RF Isolation (dB) IF2 to RF Isolation (dB) LO to LNA IN Isolation (dB) Total Current (mA) 28.0 1.8 -11.0 40 40 40 40 27.5 6.5 14.5 +10.0 40 40 40 40 21.0 27.5 2.0 -11.0 40 40 40 40 27.5 6.5 14.5 +10.0 40 40 40 40 21.0 33.25 1.7 -17.0 40 40 40 40 24.5 11.0 15.0 5.3 40 40 40 40 18.5 25.5 2.5 -12.0 40 40 40 40 24.5 6.0 16.0 +7.2 40 40 40 40 18.5 KPCS CDMA LNA ON LNA OFF PCS CDMA LNA ON LNA OFF LNA ON GPS LNA OFF IMT-2000 LNA ON LNA OFF NOTE: Assumes 2.5dB image filter insertion loss. The TX Buffer is off. Rev A9 DS050902 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 20 RF2860 Pin 1 Function LNA GAIN Type Description DI Logic input. High activates LNA. Low selects LNA bypass mode. Interface Schematic LNA GAIN 2 LNA IN AI US PCS LNA input. KPCS LNA input. GPS LNA input. IMT-2000 LNA input. V CC LNA OUT LNA IN LNA EMITTER 3 4 5 6 7 GND LNA OUT ISET2 ISET1 MIX IN P AO AI AI AI Ground via within 0.2mm of pin required. PCS LNA output. Simple external L-C components required for matching and VCC supply. External resistor required to set the mixer operating current. External resistor required to set the LNA operating current. KPCS mixer RF single-end input. Matched to 50 Ω. USPCS mixer RF single-end input. Matched to 50 Ω. GPS mixer RF single-end input. Matched to 50 Ω. IMT-2000 mixer RF single-end input. Matched to 50 Ω. External capacitor and inductor placed close to package required. IF output. Open collector. IF+ IF- M IX IN 8 9 RF VCC IF OUT+ P AO 10 11 12 IF OUTGND LO IN AO P AI IF output. Open collector. Ground. LO single-end input. Matched to 50 Ω. See pin 9. LO IN 70 Ω 13 14 15 VCC LO OUT TX BUFF ENAB P AO DI External bypass capacitor may be required. LO output. Internal DC block. Drives 50 Ω. Logic input. High enables TX LO output buffer amplifiers. TX BUFF ENAB 8 of 20 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 DS050902 RF2860 Pin 16 Function ENABLE Type Description DI Logic input. Low level powers down the IC. Interface Schematic ENABLE Pkg Base Legend: GND P Ground connection. The backside of the package should be soldered to a top side ground pad which is connected to the ground plane with multiple vias. DI=Digital Input from Baseband Chip AI=Analog Input AO=Analog Output P=VCC or GND Rev A9 DS050902 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 20 RF2860 Package Drawing -A0.10 C A 0.05 C 3.00 2 PLCS 1.50 TYP 2 PLCS 0.70 0.65 0.10 C B 0.90 0.85 0.05 0.00 3.00 12° MAX 2 PLCS 0.10 C B -B- 1.37 TYP 2 PLCS -CDimensions in mm. SEATING PLANE 2.75 SQ 0.60 0.24 TYP 0.10 C A 0.10 M C A B 0.30 0.18 2 NOTES: 1. Shaded lead is pin 1. 2 Dimension applies to plated terminal: to be measured between 0.20 mm and 0.25 mm from terminal end. PIN 1 ID R.20 1.65 SQ. 1.35 0.50 0.30 0.50 10 of 20 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 DS050902 RF2860 Application Schematic - Differential IF Matching LO OUT TX BUFF ENAB ENABLE LNA GAIN VCC 2.2 nH 33 nF 16 Note 4 Note 6 15 14 13 12 VCC 11 10 9 33 nF L2 C1 L4 C2 R1 C3 L1 5 4 9 10 1 2 LO IN Note 12 L7 LNA IN 1 pF Note 3 33 nF DNI Note 5 Note 7 Note 11 3 L5 4 VCC 30 Ω 33 nF Note 8 L6 Note 9 5 Note 2 6 7 8 IF OUT C4 Note 13 2 to 10 Ω Note 14 IN R2 5 R3 Note 1 L3 33 nF FL2 IF Saw 6 GND 3 GND GND OUT GND 4 1 VCC 3.9 nH RF VCC Note 10 FL4 RF Saw 3 pF 2 1.3 pF Application US PCS, IF=184MHz Korean PCS, IF=220MHz GPS, IF=184MHz IMT-2000, IF=190MHz C1 (pf) 6.2 5.1 3.9 4.7 C2 (pf) 2.5 3.0 1.5 1.0 C3 (pF) 6.2 5.1 3.9 4.7 C4 (pF) TBD TBD TBD TBD L1 (nH) 33 33 33 33 L2 (nH) 72 50 110 50 L3 (nH) 72 50 110 50 L4 (nH) TBD TBD TBD TBD L5 (nH) 15 15 18 10 L6 (nH) 2.7 3.3 4.7 2.7 L7 (nH) 1.2 1.5 1.5 1.5 R1 (kΩ) 9.1 7.5 DNI DNI R2 (kΩ) 8.2 8.2 13.0 13.0 R3 (kΩ) 27.0 27.0 27.0 27.0 NOTES: 1. This resistor sets the LNA current. Increasing the resistor value lowers the current. 2. This resistor sets the mixer current. Increasing the resistor value lowers the current. 3. This capacitor is used for optimum noise figure and input matching. 4. This inductor is used for optimum input match. 5. This inductor is used for optimum input match and IP3. Low impedance path to ground for optimum IP3. 6. DC-blocking capacitor. Not required with most SAW filters. 7. This inductor is used for LNA output match and as an RF choke. 8. This resistor is used to optimize performance over temperature and bias. 9. This inductor is used to optimize the LNA output match. 10.This inductor/capacitor parallel combination is used for mixer/preamp interstage matching and must be placed ~1.6mm or closer to pin 8. 11.Ground for LNA. Place ground via as close to pin as possible for maximum gain. 12.IF output matching component values are dependent on board layout, IF SAW filter, and the IF frequency selected. Please contact RFMD application engineering for assistance with IF output matching. See attached Single-Ended and Differential Tuning procedure. 13.These two values are contingent on type of IF SAW filter used. 14.Depending on SAW Filter used, resistor value will be between 2 Ω to 10 Ω. Rev A9 DS050902 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 20 RF2860 Application Schematic Single-End IF Matching LO OUT TX BUFF ENAB ENABLE LNA GAIN 2.2 nH Note 5 VCC 33 nF 16 15 14 13 12 11 10 9 5 6 7 8 VCC 33 nF C2 R1 L1 L2 Note 12 DNI 33 nF LNA IN L7 1 pF Note 3 Note 4 Note 6 1 2 3 4 LO IN CDMA IF Saw 5 4 9 10 VCC Note 8 Note 11 CDMA IFCDMA IF+ 33 nF 30 Ω Note 7 C3 15 nH L6 Note 9 R2 R3 3.9 nH 1.3 pF Note 10 2 to 10 Ω OUT Note 14 Note 2 Note 1 RF VCC GND GND IN RF Saw 4 1 GND GND 2 3 6 3 pF Application US PCS, IF=184MHz Korean PCS, IF=220MHz GPS, IF=184MHz IMT-2000, IF=190MHz 5 C2 (pF) 10.0 12.0 6.0 4.0 C3 (pF) 6.2 5.1 3.9 4.7 L1 (nH) 150 100 220 100 L2 (nH) 270 180 270 180 L7 (nH) 1.2 1.5 1.5 1.5 L6 (nH) 2.7 3.3 4.7 2.7 R1 (kΩ) 9.1 7.5 DNI DNI R2 (kΩ) 8.2 8.2 13.0 130 R3 (kΩ) 27.0 27.0 27.0 27.0 NOTES: 1. This resistor sets the LNA current. Increasing the resistor value lowers the current. 2. This resistor sets the mixer current. Increasing the resistor value lowers the current. 3. This capacitor is used for optimum noise figure and input matching. 4. This inductor is used for optimum input match. 5. This inductor is used for optimum input match and IP3. Low impedance path to ground for optimum IP3. 6. DC-blocking capacitor. Not required with most SAW filters. 7. This inductor is used for LNA output match and as an RF choke. 8. This resistor is used to optimize performance over temperature and bias. 9. This inductor is used to optimize the LNA output match. 10.This inductor/capacitor parallel combination is used for mixer/preamp interstage matching and must be placed ~1.6mm or closer to pin 8. 11.Ground for LNA. Place ground via as close to pin as possible for maximum gain. 12.IF output matching component values are dependent on board layout, IF SAW filter, and the IF frequency selected. Please contact RFMD application engineering for assistance with IF output matching. See attached Single-Ended and Differential Tuning procedure. 13.These two values are contingent on type of IF SAW filter used. 14.Depending on SAW Filter used, resistor value will be between 2 Ω to 10 Ω. 12 of 20 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 DS050902 RF2860 Evaluation Board Schematic KPCS, IF=220.38MHz (Download Bill of Materials from www.rfmd.com.) TX BUF EN J3 LO OUT TX BUF EN LNA GAIN C10 DNI VCC GND C12 DNI ENABLE C5 33 nF L11 2.2 nH P1 VCC C13 10 pF C4 33 nF LNA GAIN 1 2 L7 1.5 nH C17 33 nF 3 4 L5 15 nH R3 8.2 kΩ R5 27 kΩ L9 33 nH 1 CON3 P2 ENABLE CON4 J2 LO IN J1 CDMA IF C1 33 nF C20 + 1 uF GND 2 1 3 4 3 2 P1-3 P3* 4 3 2 P2-4 DNI 1 P2-2 P2-1 L4 DNI C14 1 pF L3* DNI C11 DNI 16 15 14 13 12 11 10 9 C15 6.2 pF VCC R1 5.6 kΩ C16 6.2 pF L1 100 nH C6 33 nF L2 180 nH C3 5.1 pF J4 LNA IN J5 LNA OUT C2 33 nF L6 3.3 nH 5 6 7 8 C18* DNI C7 33 nF VCC R2 30 Ω FL1 FILTER SAWTEK 2X2 3 GND GND L8 DNI C22 3 pF C21* DNI L10 3.9 nH C23 1.3 pF C8 33 nF C19* DNI VCC C9 33 nF J6 MIX IN *IF FREQ=220MHz Differential IF Matching Rev A9 DS050902 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 13 of 20 1 RF2860 C1 IF Saw VCC IF+ IF10 9 4 5 IF+ L2 R1 C2 IF- L2 100 pF C3 L3 L2, L3 and C2 are chosen to resonate at the desired IF frequency. C2 can be omitted and the value of L1 increased and utilized solely as a choke to provide VCC to the open-collector outputs, but it is strongly recommended that at least some smallvalued C2 (a few pF) be retained for better mixer linearity performance. R1 is normally selected to match the input impedance of the IF filter. However, mixer performance can be modified by selecting an R value that is different from the IF filter input impedance, and inserting a conjugate matching network between the Resistive Output Network and the IF filter. C1 and C3 serve dual purposes. C1 and C3 serve as a series DC block when a DC path to ground is present in the IF filter. In addition, C1 may be chosen to improve the combine performance of the mixer and IF filter. L1 should choose to resonate with the internal capacitance of the SAW filter. Usually, SAW filter has some capacitance. Otherwise, L1 could be eliminated. A practical approach to obtain the differential matching is to tune the mixer to the correct load point for gain, IIP3, and NF using the single-end current combiner method. Second, use the component values found in the single-end approach as starting point for the differential matching. The two-shunt capacitors in the single-end matching could be converted to a parallel capacitor and the parallel inductor in the single-end matching needs to be converted in to a choke inductor. Third, set the DC block capacitors (C1 and C3) in the differential-end matching to a high value (i.e., 100pF) and retune the resonate circuit (C2, L2 and L3) and the resistor (R) for optimal performance. After optimal performance is achieved and if performance is not satisfactory, decrease the series capacitors until optimal performance is achieved. Single-End IF Matching 14 of 20 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 DS050902 RF2860 C3 IF+ IF10 9 4 5 C1 IF+ VCC IF Saw 100 pF L2 L1 R C2 IF- C1 L1, C1, C2, and R form a current combiner which performs a differential to single-ended conversion at the IF frequency and sets the output impedance. In most cases, the resonance frequency is independent of R and can be set according to the following equation: 1 f IF = ----------------------------------------------------------L1 2 π ----- ( C 1 + 2 C 2 + C EQ ) 2 Where CEQ is the equivalent stray capacitance and capacitance looking into pins 9 and 10. An average value to use for CEQ is 2.5pF. R can then be used to set the output impedance according to the following equation: 1 - 1- – 1 R = ⎛ -------------------- – ----- ⎞ ⎝4 ⋅ R ⎠ OUT R P where ROUT is the desired output impedance and RP is the parasitic equivalent parallel resistance of L1. C2 should first be set to 0 and C1 should be chosen as high as possible (not greater than 39pF), while maintaining an RP of L1 that allows for the desired ROUT. If the self-resonant frequencies of the selected C1 produce unsatisfactory linearity performance, their values may be reduced and compensated for by including C2 capacitor with a value chosen to maintain the desired FIF frequency. L2 and C3 serve dual purposes. L2 serves as an output bias choke, and C3 serves as a series DC block. In addition, L2 and C3 may be chosen to form an impedance matching network if the input impedance of the IF filter is not equal to ROUT. Otherwise, L2 is chosen to be large (suggested 120nH) and C3 is chosen to be large (suggested 22nF) if a DC path to ground is present in the IF filter, or omitted if the filter is DC-blocked. Rev A9 DS050902 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 15 of 20 RF2860 RF2860 Layout Requirements NOTES: 1. This component is not required on the evaluation board. It may be required on the phone board for optimum IIP3. Component placeholder should be on phone board. 2. Ground for LNA emitter. For maximum gain, place ground via as close to pin 3 as possible. 3. This capacitor is required as part of the mixer input match. 4. This inductor/capacitor parallel combination is used for mixer/preamplifier interstage tuning. It must be placed ~1.6mm or closer to pin 8. 16 of 20 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 DS050902 RF2860 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 = 0.64 x 0.28 (mm) Typ. B = 0.28 x 0.64 (mm) Typ. C = 1.50 (mm) Sq. 1.50 Typ. 0.50 Typ. Pin 16 Dimensions in mm. B Pin 1 B B B A A Pin 12 A A C A A 0.50 Typ. 0.75 Typ. 1.50 Typ. A A B B B B Pin 8 0.55 Typ. 0.55 Typ. 0.75 Typ. Figure 1. PCB Metal Land Pattern (Top View) Rev A9 DS050902 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 17 of 20 RF2860 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 body and the solder terminals from damaging stresses. The individual pocket design can vary from vendor to vendor, but width and pitch will be consistent. Carrier tape is wound or placed onto a shipping reel either 330 mm (13 inches) in diameter or 178 mm (7 inches) in diameter. 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-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 rated 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/JEDEC J-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 RF2860TR7 Reel Diameter Inch (mm) 7 (178) Hub Diameter Inch (mm) 2.4 (61) Width (mm) 12 Pocket Pitch (mm) 4 Feed Single Units per Reel 2500 QFN (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 = 3.18 ± 0.10 Bo = 3.18 ± 0.10 F = 5.50 ± 0.05 Ko = 1.02 ± 0.10 P = 4.00 ± 0.10 W = 12.00 +0.30/-0.10 4.00 ± 0.10 2.00 ± 0.05 Ø1.50±.10 15 inch Trailer Sprocket holes toward rear of reel Pin 1 Location Top View 15 inch Leader 1.75±0.10 0.279 ±.020 F RF Part Number Trace Code RF Part Number Trace Code RF Part Number Trace Code RF Part Number Trace Code RF Part Number Trace Code RF Part Number Trace Code RF Part Number Trace Code W Bo P Ao Ko Direction of Feed 18 of 20 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 DS050902 RF2860 Rev A9 DS050902 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 19 of 20 RF2860 20 of 20 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 DS050902