RF2460PCBA-41X

RF2460 PCS CDMA LOW NOISE AMPLIFIER/MIXER 1500MHz TO 2200MHz DOWNCONVERTER RoHS Compliant & Pb-Free Product Package Style: QFN, 20-Pin, 4x4 LNA GAIN 17 Features Complete Receiver Front-End Stepped LNA/Mixer Gain Control Adjustable LNA/Mixer Bias Current 24dB Gain and 2.2dB Noise Figure at Maximum Cascade Gain ENABLE VCC1 VCC2 LO IN NC * 20 1 2 3 4 5 19 18 16 MIX GAIN * LNA IN NC NC 15 14 13 12 11 6 NC 7 IF+ 8 NC 9 IF10 NC * LNA OUT ISET1 ISET2 MIX IN LNA2 E Applications CDMA PCS Handsets GPS Receiver W-CDMA Handsets General Purpose Downconverter Commercial and Consumer Systems Portable Battery-Powered Equipment * * Represents "GND". Functional Block Diagram Product Description The RF2460 is a receiver front-end designed for the receive section of PCS CDMA and W-CDMA applications. It is designed to amplify and downconvert RF signals while providing 29dB of stepped gain control range and features digital control of LNA gain, mixer gain, and power down mode. A further feature of the chip is adjustable IIP3 of the LNA and mixer using an off-chip current setting resistor. Noise Figure, IP3, and other specs are designed to be compatible with the IS-98B for CDMA PCS communications. The IC is manufactured on an advanced Silicon Germanium BiCMOS process and is assembled in a 20-pin, QFN package with an exposed die flag. Ordering Information RF2460 RF2460PCBA-41X PCS CDMA Low Noise Amplifier/Mixer 1500MHz to 2200MHz 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 B6 DS080128 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 26 RF2460 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 LO Frequency Range IF Frequency Range Bias Current Min. Specification Typ. Max. Unit Condition T = 25°C, VCC =2.75V, RF=1.96GHz, LO=2170MHz@-7dBm, IF=210MHz 1500 to 2200 1200 to 2600 0.1 to 250 2.5 13.5 +6.0 15.0 1.4 +7.0 1.8 2.8 MHz MHz MHz mA dB dB dBm IIP3 is adjustable (see plots for setting). ISET1 (pin 14) external resistor sets current consumption and performance. LNA, mixer and preamp for bias circuitry. US PCS - LNA Gain Noise Figure Input IP3 Input VSWR Output VSWR Current at Input IP3 7 -6 +23.0 -5 5 +26.0 2:1 2:1 7.5 mA dB 5.5 2:1 2:1 0 mA 1kΩ balanced load. 10 +3.0 12 6.5 +4.0 >45 7.5 dB dB dBm dB IIP3 is adjustable (see plots for setting). ISET2 (pin 13) external resistor sets current consumption and performance. dB dBm US PCS - LNA Bypass Gain Noise Figure Input IP3 Input VSWR Output VSWR Current US PCS - Mixer - High Gain Mode Gain Noise Figure Input IP3 RF to IF Isolation Input VSWR Output VSWR Current 12 2:1 2:1 13 mA 2 of 26 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 B6 DS080128 RF2460 Parameter US PCS - Mixer - Low Gain Mode Gain Noise Figure Input IP3 RF to IF Isolation Input VSWR Output VSWR Current 7.5 14.5 +5.0 16.0 1.4 +6.0 1.8 +13.0 0 1.5 15 +14.0 >45 2:1 2:1 8.0 mA dB dB dBm IIP3 is adjustable (see plots for setting). ISET1 (pin 14) external resistor sets current consumption and performance. 16 dB dB dBm dB IIP3 is adjustable ISET2 (pin 13) external resistor sets current consumption and performance. Min. Specification Typ. Max. Unit Condition 1kΩ balanced load. KPCS - LNA Gain Noise Figure Input IP3 Input VSWR Output VSWR Current at Input IP3 7 -6 +23.0 -5 5.0 +26.0 2:1 2:1 7.5 mA dB 5.5 2:1 2:1 0 mA 1kΩ balanced load. 10 +2.5 12 6.5 +3.5 >45 7.5 dB dB dBm dB IIP3 is adjustable (see plots for setting). ISET2 (pin 13) external resistor sets current consumption and performance. dB dBm KPCS - LNA Bypass Gain Noise Figure Input IP3 Input VSWR Output VSWR Current KPCS - Mixer - High Gain Mode Gain Noise Figure Input IP3 RF to IF Isolation Input VSWR Output VSWR Current 12 0 +13.0 1.5 15 +14.0 >45 2:1 2:1 13 mA 1kΩ balanced load. dB 16 dB dBm dB 2:1 2:1 7.5 8.0 mA IIP3 is adjustable ISET2 (pin 13) external resistor sets current consumption and performance. KPCS - Mixer - Low Gain Mode Gain Noise Figure Input IP3 RF to IF Isolation Input VSWR Output VSWR Current Rev B6 DS080128 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 26 RF2460 Parameter GPS - LNA Gain Noise Figure Input IP3 16 1.4 +7.0 dB dB dBm IIP3 is adjustable. ISET1 (pin 14) external resistor sets current consumption and performance. Min. Specification Typ. Max. Unit Condition Current at Input IP3 7 17 6 -5.0 mA dB dB dBm IIP3 is adjustable. ISET1 (pin 14) external resistor sets current consumption and performance. GPS - Mixer Gain Noise Figure Input IP3 Current at Input IP3 16 31 1.8 -19.0 mA dB dB dBm IIP3 is adjustable. ISET1 (pin 14) external resistor sets current consumption and performance. GPS - Cascaded Gain Noise Figure Input IP3 Current at Input IP3 23 -10 -7 >40 >60 4.5 5.0 0 mA dBm dB dB mA Any gain state. Any gain state. ICC2 when LO signal is present LNA High Gain/Mixer High Gain Assuming 3dB loss of filter Local Oscillator Input Input Level LO to RF Isolation LO to LNA Isolation LO Current Buffer US PCS - Cascade LNA High/Mixer High Gain Noise Figure Input IP3 Total Current 24 2.2 -8.0 26 dB dB dBm mA IF 1, 1kΩ balanced load. Single sideband. LNA High Gain/Mixer Low Gain Assuming 3dB loss of filter US PCS - Cascade LNA High/Mixer Low Gain Noise Figure Input IP3 Total Current 13.5 5.3 +1.0 21 dB dB dBm mA IF 1, 1kΩ balanced load. Single sideband. LNA Low Gain/Mixer High Gain Assuming 3dB loss of filter US PCS - Cascade LNA Low/Mixer High Gain Noise Figure Input IP3 Total Current 4 14.5 +12.0 19 dB dB dB mA IF 1, 1kΩ balanced load. Single sideband. 4 of 26 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 B6 DS080128 RF2460 Parameter US PCS - Cascade LNA Low/Mixer Low Gain Noise Figure Input IP3 Total Current -6.5 23 +20.5 14 dB dB dB mA LNA High Gain/Mixer High Gain Assuming 3dB loss of filter 25 2.2 -9.5 26 dB dB dBm mA LNA High Gain/Mixer Low Gain Assuming 3dB loss of filter 14.5 5.3 +1.0 21 dB dB dBm mA LNA Low Gain/Mixer High Gain Assuming 3dB loss of filter 4 14.5 +12.0 19 dB dB dB mA LNA Low Gain/Mixer Low Gain Assuming 3dB loss of filter -6.5 23 +22 14 2.7 3.0 3.3 dB dB dB mA V Single sideband. IF 1, 1kΩ balanced load. Single sideband. IF 1, 1kΩ balanced load. Single sideband. IF 1, 1kΩ balanced load. Single sideband. IF 1, 1kΩ balanced load. Single sideband. Min. Specification Typ. Max. Unit Condition LNA Low Gain/Mixer Low Gain Assuming 3dB loss of filter IF 1, 1kΩ balanced load. KPCS - Cascade LNA High/Mixer High Gain Noise Figure Input IP3 Total Current KPCS - Cascade LNA High/Mixer Low Gain Noise Figure Input IP3 Total Current KPCS - Cascade LNA Low/Mixer High Gain Noise Figure Input IP3 Total Current KPCS - Cascade LNA Low/Mixer Low Gain Noise Figure Input IP3 Total Current Power Supply Voltage Rev B6 DS080128 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 26 RF2460 Pin 1 2 Function ENABLE VCC1 Description Interface Schematic Power down pin. A logic “low” turns the part off. A logic “high” (>1.6V) turns the part on. Supply Voltage for the LNA, mixer, bias, and logic circuitry. External RF and See pin 20. IF bypassing is required. The trace length between the pin and the bypass capacitors should be minimized. The ground side of the bypass capacitors should connect immediately to ground plane. Supply Voltage for the LO buffer amplifier. External RF and IF bypassing is required. The trace length between the pin and the bypass capacitors should be minimized. The ground side of the bypass capacitors should connect immediately to ground plane. Mixer LO Input Pin. No connection. For isolation purposes, this pin is connected to the ground plane. No connection. For isolation purposes, this pin is connected to the ground plane. CDMA IF Output pin. This is a balanced output. The internal circuitry, in conjunction with an external matching/bias inductor to VCC, sets the operating impedance. This inductor is typically incorporated in the matching network between the output and IF filter. The part is designed to drive a 1kΩ load. Because this pin is biased to VCC, a DC blocking capacitor must be used if the IF filter input has a DC path to ground. See Application Schematic. No connection. For isolation purposes, this pin is connected to the ground plane. Same as pin 7, except complementary output. No connection. For isolation purposes, this pin is connected to the ground plane. Emitter for LNA2. Increasing the inductance on this pin will reduce the mixer gain, increase IP3 and noise figure. Mixer RF Input Pin. This pin is internally DC biased and should be DC blocked if connected to a device with DC present. External matching network sets RF and IF impedance for optimum performance. This pin is used to set the bias current and IIP3 of the mixer amplifier using a resistor to ground. See plots for values and current settings. This pin is used to set the bias current and IIP3 of the LNA amplifier using a resistor to ground. See plots for values and current settings. LNA output pin. Open collector. CMOS compatible signal controlling mixer gain mode. Setting this signal high places the mixer in the high gain mode. Setting this signal low places the mixer in low gain mode by bypassing and shutting off the mixer buffer amplifier current. CMOS compatible signal controlling LNA gain mode. Setting this signal high places the LNA in the high gain mode. Setting this signal low bypasses the LNA and shuts off the LNA bias current. No connection. For isolation purposes, this pin is connected to the ground plane. No connection. For isolation purposes, this pin is connected to the ground plane. 3 VCC2 4 5 6 7 LO IN NC NC IF+ IF1+ GND2 IF1- 1.2 pF 1.2 pF 8 9 10 11 12 NC IFNC LNA2 E MIX IN See pin 6. M IX IN 13 14 15 16 ISET2 ISET1 LNA OUT MIX GAIN See pin 20. MIX GAIN 17 LNA GAIN LNA GAIN 18 19 NC NC 6 of 26 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 B6 DS080128 RF2460 Pin 20 Function LNA IN Description RF Input pin. This pin is internally matched for optimum noise figure from a 50 Ω source. LNA IN Interface Schematic VCC1 LNA OUT Pkg Base GND 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. Package Drawing 0.15 C A -A0.05 C 4.00 2 PLCS 1.00 0.90 2 PLCS 0.05 0.15 C B 3.75 4.00 Dimensions in mm. 12° MAX 0.15 C 2 PLCS -B- -C- 3.75 0.15 C 2 PLCS Note orientation of package. 0.10 M C A B 0.20 0.60 0.24 TYP 2 0.65 0.30 4 PLCS NOTES: 1 Shaded lead is Pin 1. Dimension applies to plated terminal: 2 to be measured between 0.02 mm and 0.25 mm from terminal end. 2.10 SQ. 0.75 0.50 0.50 0.23 0.13 4 PLCS Rev B6 DS080128 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 26 RF2460 Output Interface Network of the Mixer 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 7 and 9. 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 (suggested less than 20pF), 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. 8 of 26 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 B6 DS080128 RF2460 Application Schematic - US PCS LNA GAIN 10 Ω 19 nH 10 nH * VCC1 VCC2 1 2 3 LO IN 7.5 nH 82 Ω 4 5 * * Represents "GND". C1 C2 C1 6 7 8 9 10 20 19 18 17 16 * 2 nH 15 14 13 12 MIX IN 11 * 0.1 μF 1 nH 47 nH 510 Ω 0.1 μF MIX GAIN VCC1 0.1 μF LNA IN ENABLE 22 pF LNA OUT 18 kΩ 9.1 kΩ VCC1 VCC2 L1 VCC1 L2 0.1 μF R C3 C3 0.1 μF C4 0.1 μF C3 and C4 should be placed as closely as possible to pins 2 and 3 IF OUT C1 (pF) US PCS, IF = 210 MHz Korean PCS, IF = 220 MHz GPS, IF = 184 MHz US PCS, IF = 184 MHz 4 3.6 8.2 8 C2 (pF) 3 2 DNI 3 C3 (pF) 6 7 6.2 6 L1 (nH) 82 82 120 82 L2 (nH) 110 120 180 110 R ( Ω) 4.7 k 4.7 k 10 k 4.7 k Rev B6 DS080128 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 26 RF2460 Application Schematic - W-CDMA (See W-CDMA charts for lab measurements at the end of the data sheet) LNA_GAIN MIX_GAIN C2 0.1 μF L1 10 nH * ENABLE VCC1 VCC2 50 Ω μstrip LO IN L2 7.5 nH R1 82 Ω 4 5 * 6 7 8 9 10 12 11 * L5 1.0 nH P2-1 50 Ω μstrip C7 4.3 pF 50 Ω μstrip C8 4.3 pF 50 Ω μstrip 50 Ω μstrip C9 4.3 pF P2-1 P2-3 L6 47 nH P2 1 2 3 CON3 P1 VCC1 VCC2 P1-1 + C1 1 μF C3 0.1 μF C4 0.1 μF P1-3 1 2 3 VCC1 GND ENABLE LNA_GAIN MIX_GAIN 1 2 3 20 19 18 17 16 * 15 14 13 R3 9.1 kΩ 50 Ω μstrip C10 0.1 μF 50 Ω μstrip R6 18 kΩ R5 10 Ω 50 Ω μstrip L8 19 nH L7 2.0 nH R4 510 Ω C11 22 pF C12 0.1 μF VCC1 50 Ω μstrip LNA IN 50 Ω μstrip LNA OUT 50 Ω μstrip MIX IN L4 82 nH L3 150 nH VCC1 C5 0.1 μF 50 Ω μstrip R2 DNI C6 5.6 pF C13 + CON3 1 μF C2 and C3 should be placed as closely as possible to pins 2 and 3 RF2460PCBA-U WCDMA RF @ 2.14 GHz, LO @ 2.33 GHz, IF @ 190 MHz 50 Ω μstrip IF=190 MHz IF OUT 10 of 26 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 B6 DS080128 RF2460 Application Schematic - GPS RF=1575MHz, IF=184MHz, LO=1759MHz LNA GAIN 50 Ω μstrip LNA IN 12 nH 50 Ω μstrip 12 nH ***439 pS electrical delay*** ***0.33 dB line loss*** 50 Ω μstrip 47 nF MIX GAIN VCC1 5Ω 0.1 uF * 20 19 18 17 16 * 1.2 nH ENABLE VCC1 ***C2 & C3 should be placed as close as possible to pins 2 & 3*** 33 nF 50 Ω μstrip ***359 pS electrical delay*** ***0.23 dB line loss*** 1 2 3 4 15 14 13 12 11 6 7 8 9 10 * 50 Ω μstrip 18 kΩ 13 kΩ 0.1 uF 50 Ω μstrip 50 Ω μstrip 50 Ω μstrip LNA OUT VCC2 ***397 pS electrical delay*** ***0.26 dB line loss*** ***390 pS electrical delay*** ***0.28 dB line loss*** 50 Ω μstrip 68 Ω 5 * MIX IN LO IN 50 Ω μstrip 8.2 pF 50 Ω μstrip 50 Ω μstrip 50 Ω μstrip 8.2 pF * 47 nH Represents "GND". 120 nH VCC1 180 nH 0.1 uF 50 Ω μstrip 10 kΩ 6.2 pF ***323 pS electrical delay*** ***0.03 dB line loss*** 50 Ω μstrip IF OUT Rev B6 DS080128 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 26 RF2460 Current Measurement To measure only the current of the different circuitry in the evaluation board, use the following procedure. First, replace the bias choke inductor at the output of the mixer (L3 for US-PCS) with a 1 Ω resistor. The voltage across the resistor will represent the mixer current. Terminate all SMA connections at 50 Ω. Second, follow the table below. CONDITION Current (mA) ICC Total LNA Off Mixer Preamp Off VCC2 Off Mixer Current 25.82 18.77 14.28 10.05 7.72 VCC1 1 1 1 1 1 VCC2 1 1 1 0 0 EN 1 1 1 1 1 LNA Gain 1 0 0 0 0 Mix Gain 1 1 0 0 0 Therefore, LNA (Bypass) LNA (High Gain) Mixer (Preamp) Mixer Bias LO Circuitry (VCC2) = = = = = = (Computer Simulation) 25.82-18.77 18.77-14.28 (Measured) 10.05-7.7 14.28-10.05 = = = = = = 0mA 7.05mA 4.49mA 7.70mA 2.35mA 4.23mA 25.82mA 12 of 26 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 B6 DS080128 RF2460 Evaluation Board Schematic US-PCS, IF=210MHz ***400 pS electrical delay*** ***0.30 dB line loss*** J1 LNA IN C2 1 pF ENABLE VCC1 C3 0.1 μF L1 1.6 nH L2 10 nH * 1 C4 0.1 μF 2 3 C5 0.1 μF 4 5 L3 9 nH R1 68 Ω * 6 7 8 9 10 20 19 18 17 16 * 15 14 13 12 11 * L6 1 nH R6 24 kΩ R3 7.5 kΩ L9 8.2 nH R5 20 Ω R4 510 Ω C13 0.1 μF LNA GAIN MIX GAIN VCC1 L8 2.2 nH C12 22 pF ***358 pS electrical delay*** ***0.26 dB line loss*** J5 LNA OUT ***C4 and C5 should be placed as close as possible to pins 2 and 3*** VCC1 ***399 pS electrical delay*** ***0.32 dB line loss*** ***396 pS electrical delay*** ***0.30 dB line loss*** J2 LO IN C11 0.1 μF J4 MIX IN L7 47 nH 2460310, Rev. 5 C8 3.6 pF C9 2 pF L5 82 nH C10 3.6 pF * Represents "GND". L4 120 nH VCC1 C6 0.1 μF J3 IF OUT ***291 pS electrical delay*** ***0.05 dB line loss*** C1 0.1 μF P1-1 P1 1 2 VCC1 GND VCC2 P2-1 P2-2 P2-3 P2 1 2 3 CON3 ENABLE LNA GAIN MIX GAIN C7 7 pF R2 4.7 kΩ P1-3 C14 0.1 μF 3 CON3 Rev B6 DS080128 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 26 RF2460 Evaluation Board Schematic Korean-PCS, IF=220MHz ***400 pS electrical delay*** ***0.30 dB line loss*** J1 LNA IN C2 1 pF ENABLE VCC1 C3 0.1 μF L1 1.6 nH L2 10 nH * 1 C4 0.1 μF 2 3 C5 0.1 μF 4 5 L3 9 nH R1 68 Ω * 6 7 8 9 10 20 19 18 17 16 * 15 14 13 12 11 * L6 1 nH R6 24 kΩ R3 7.5 kΩ L9 8.2 nH R5 20 Ω R4 510 Ω C13 0.1 μF LNA GAIN MIX GAIN VCC1 L8 2.2 nH C12 22 pF ***358 pS electrical delay*** ***0.26 dB line loss*** J5 LNA OUT ***C4 and C5 should be placed as close as possible to pins 2 and 3*** VCC1 ***399 pS electrical delay*** ***0.32 dB line loss*** ***396 pS electrical delay*** ***0.30 dB line loss*** J2 LO IN C11 0.1 μF J4 MIX IN L7 47 nH 2460310, Rev. 5 C8 3.6 pF C9 2 pF L5 82 nH C10 3.6 pF * Represents "GND". L4 120 nH VCC1 C6 0.1 μF J3 IF OUT ***291 pS electrical delay*** ***0.05 dB line loss*** C1 0.1 μF P1-1 P1 1 2 VCC1 GND VCC2 P2-1 P2-2 P2-3 P2 1 2 3 CON3 ENABLE LNA GAIN MIX GAIN C7 7 pF R2 4.7 kΩ P1-3 C14 0.1 μF 3 CON3 14 of 26 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 B6 DS080128 RF2460 Evaluation Board Layout - US PCS Board Size 2.0" x 2.0" Board Thickness 0.034”, Board Material FR-4, Multi-Layer Assembly Top Power Plane 1 Power Plane 2 Rev B6 DS080128 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 26 RF2460 Back 16 of 26 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 B6 DS080128 RF2460 Evaluation Board Layout - Korean PCS Assembly Top Power Plane 1 Power Plane 2 Rev B6 DS080128 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 26 RF2460 Back Special Instructions (Board loss, taking into consideration description in the schematic) LNA VCC1 =VCC2 =Enable=2.75V; Mix Gain=0.0V To measure ICC LNA only: LNA Gain was switched between 0V and 2.75V, and record the delta current. Mixer VCC1 =VCC2 =Enable=Mix Gain=2.75V; LNA Gain=0.0V To measure ICC Mixer (LNA should be in bypass mode and LO signal should be present): Mixer Current=Total IC Current-LO Circuitry (~4.23mA) (See “Current Measurement” section for more details) VCC2 only affects LO current buffer and R6 doesn’t affect the mixer current. Instructions (Board loss, taking into consideration description in the W-CDMA schematic) LNA ICC LNA current=total current (VCC =LNA Gain=2.75)-total current (VCC =2.75; LNA Gain=0) To measure ICC LNA only: LNA Gain was switched between 0V and 2.75V, and record the delta current. Mixer ICC Mix and Bias Current=Total Current (VCC1 =EN=VCC2 =Mix Gain=2.75; LNA Gain=0)-total current (VCC1 =EN=2.75; Mix Gain=LNA Gain=VCC2 =0) LO signal should be present. VCC2 only affects LO current buffer and R6 doesn’t affect the mixer current. 18 of 26 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 B6 DS080128 RF2460 U (LNA High Gain) 18.0 16.0 10.0 14.0 12.0 10.0 0.0 8.0 Gain (dB) 6.0 4.0 -10.0 2.0 0.0 1.0 3.0 5.0 7.0 9.0 11.0 13.0 -15.0 15.0 20.0 0.0 1.0 3.0 5.0 7.0 9.0 11.0 13.0 15.0 NF (dB) IIP3 (dBm) -5.0 60.0 40.0 5.0 160.0 140.0 15.0 200.0 180.0 S -P C S Resistor (R6) versus ICC (mA) - LNA Only (LNA High Gain) LNA Gain, Noise Figure and IIP3 versus ICC - LNA Only Y Axis Label (units) Resistor R6 (k Ω) IIP3 (dBm) 120.0 100.0 80.0 X Axis Label (units) ICC (mA) 25.0 20.0 15.0 Mixer Gain, Noise Figure and IIP3 versus ICC - Mixer (Mixer High Gain, LO = -7 dBm) 10.0 180.0 160.0 Resistor (R3) versus ICC - Mixer (Mixer High Gain, LO = 2170 @ -7 dBm) 5.0 140.0 120.0 100.0 80.0 60.0 Gain and Noise Figure (dB) 5.0 0.0 -5.0 -5.0 Gain (dB) -10.0 -15.0 -20.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 -15.0 18.0 NF (dB) IIP3 (dBm) -10.0 IIP3 (dBm) 0.0 Resistor R3 (k Ω) 10.0 40.0 20.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 ICC (mA) ICC (mA) By using a R6=39kΩ and R3=24kΩ, the following results were obtained. RF=2140MHz, LO=2330MHz, IF=190MHz. Rev B6 DS080128 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 26 RF2460 W -C D M A (S e e W -C D M A A p p lic a tio n S c h e m a tic ) LNA Gain, Noise Figure, and IIP3 versus ICC - LNA Only (LNA High Gain) 20.00 2.00 1.80 15.00 1.60 80.0 70.0 60.0 90.0 R6 versus ICC for LNA Gain (dB) and IIP3 (dBm) 1.40 R6 (mA) 1.20 5.00 1.00 0.80 0.00 0.60 Gain (dB) -5.00 IIP3 (dBm) NF (dBm) -10.00 1.00 3.00 5.00 7.00 9.00 11.00 13.00 0.20 0.00 15.00 Noise Figure (dB) 10.00 50.0 40.0 30.0 20.0 0.40 10.0 0.0 1.0 3.0 5.0 7.0 9.0 11.0 13.0 15.0 ICC (mA) ICC (mA) Mixer Gain, Noise Figure and IIP3 versus ICC - Mixer and Bias Circuits (Mixer High Gain, LO=-7dBm) 14.00 12.00 10.00 10.00 12.00 R3 versus ICC for Mixer and Bias Circuits 40.0 35.0 30.0 Gain (dB) and IIP3 (dBm) 8.00 R3 (kΩ) 6.00 4.00 Noise Figure (dB) 8.00 25.0 20.0 6.00 2.00 0.00 -2.00 -4.00 -6.00 -8.00 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 Gain (dB) IIP3 (dBm) NF (dBm) 0.00 10.00 2.00 4.00 15.0 10.0 5.0 0.0 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 ICC (mA) ICC (mA) 20 of 26 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 B6 DS080128 RF2460 LNA (High Gain Mode) WCDMA 14.00 13.80 9.00 13.60 13.40 8.00 10.00 LNA (High Gain Mode) W-CDMA IIP3 (dBm) Gain, -30º Gain, 25º Gain, 85º Gain (dB) 13.20 13.00 12.80 12.60 12.40 12.20 12.00 2.75 2.85 2.95 3.05 3.15 3.25 7.00 6.00 5.00 IIP3, -30º IIP3, 25º IIP3, 85º 4.00 2.75 2.85 2.95 3.05 3.15 3.25 3.35 VCC (V) VCC (V) LNA (High Gain Mode) W-CDMA 2.50 4.35 4.30 2.00 4.25 4.20 1.50 LNA Current W-CDMA Noise Figure (dB) ICC (mA) 1.00 0.50 NF, -30º NF, 25º NF, 85º 0.00 2.75 2.85 2.95 3.05 3.15 3.25 3.35 4.15 4.10 4.05 4.00 Icc, -30º 3.95 3.90 2.75 2.85 2.95 3.05 3.15 3.25 3.35 Icc, 25º Icc, 85º VCC (V) VCC (V) Rev B6 DS080128 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 21 of 26 RF2460 Mixer High Gain Mode, LO @ -7 dBm W-CDMA 14.00 11.00 Mixer High Gain Mode, LO @ -7 dBm W-CDMA 13.00 10.50 11.00 Noise Figure (dB) Gain, -30º Gain, 25º Gain, 85º 12.00 10.00 Gain (dB) 9.50 10.00 9.00 9.00 8.50 NF, -30º NF, 25º NF, 85º 8.00 2.75 2.85 2.95 3.05 3.15 3.25 3.35 8.00 2.75 2.85 2.95 3.05 3.15 3.25 3.35 VCC (V) VCC (V) Mixer High Gain Mode, 13.0 12.5 -0.5 12.0 11.5 -1.0 Mixer IF High Gain Mode, 0.0 VCC @ 2.75 W-CDMA VCC @ 2.75 W-CDMA IIP3, -30º IIP3, 25º IIP3, 85º IIP3 (dBm) Gain, -30º Gain, 25º Gain, 85º Gain (dB) 11.0 10.5 10.0 9.5 9.0 8.5 8.0 -10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -1.5 -2.0 -2.5 -3.0 -3.5 -10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 LO (dBm) LO (dBm) Mixer IF High Gain Mode, 11.0 Mixer IF High Gain Mode, 6.2 VCC @ 2.75 W-CDMA VCC @ 2.75 W-CDMA 10.5 6.1 ICC Mixer and Bias Current (mA) 6.0 Noise Figure (dB) 10.0 Icc, -30º Icc, 25º Icc, 85º 5.9 9.5 5.8 9.0 5.7 8.5 NF, -30º NF, 25º NF, 85º 5.6 8.0 -10.0 -8.0 -6.0 -4.0 -2.0 0.0 5.5 -10.0 -8.0 -6.0 -4.0 -2.0 0.0 LO (dBm) LO (dBm) 22 of 26 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 B6 DS080128 RF2460 Mixer IF High Gain Mode, LO @ -7 dBm W-CDMA 7.50 7.00 ICC Mixer and Bias Circuit (mA) 6.50 6.00 5.50 Icc, -30º Icc, 25º Icc, 85º 5.00 2.75 2.85 2.95 3.05 3.15 3.25 3.35 VCC (V) Rev B6 DS080128 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 23 of 26 RF2460 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 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 = 0.69 x 0.28 (mm) Typ. B = 0.28 x 0.69 (mm) Typ. C = 2.40 (mm) Sq. Dimensions in mm. 2.00 Typ. 0.50 Typ. Pin 20 B Pin 1 B B B B Pin 15 0.50 Typ. A A A A A C A A A A A B B B B B Pin 10 1.00 Typ. 2.00 Typ. 0.78 Typ. 0.78 Typ. 1.00 Figure 1. PCB Metal Land Pattern (Top View) 24 of 26 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 B6 DS080128 RF2460 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 = 0.79 x 0.38 (mm) Typ. B = 0.38 x 0.79 (mm) Typ. C = 2.50 (mm) Sq. Dimensions in mm. 2.00 Typ. 0.50 Typ. Pin 20 B Pin 1 B B B B Pin 15 A A A C A A A B B B B B Pin 10 0.50 Typ. A A A A 1.00 Typ. 2.00 Typ. 0.78 Typ. 0.78 Typ. 1.00 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 B6 DS080128 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 25 of 26 RF2460 RoHS* Banned Material Content RoHS Compliant: Package total weight in grams (g): Compliance Date Code: Bill of Materials Revision: Pb Free Category: Yes 0.041 0629 e3 Pa r ts Pe r Mi l l i o n (PPM) Pb 0 0 0 0 0 0 Cd 0 0 0 0 0 0 Hg 0 0 0 0 0 0 Cr VI 0 0 0 0 0 0 PB B 0 0 0 0 0 0 PB DE 0 0 0 0 0 0 B i l l o f Ma te r i a l s Di e Mo l d i ng Co mp o und Le a d F r a m e Di e Atta ch Ep o x y Wi r e So l d e r Pl a ti ng Thi s R o HS b a nne d ma te r i a l co nte nt de cl a r a ti o n wa s pr e p a r e d so l e l y o n i nfo r ma ti o n, i ncl ud i ng a na l y ti ca l d a ta , pr o v i de d to R F MD b y i ts sup p l i e r s, a nd a pp l i e s to the B i l l o f M a te r i a l s (B OM) r e vi si o n no te d * DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment 26 of 26 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 B6 DS080128