RFDA2125 Digital Controlled Variable Gain Amplifier 400MHz to 2700MHz, 6-Bit 0.5dB LSB Control rfmd.com SPI_LE Vdsa GND Vref Vbias GND RF_OUT 30 29 28 27 26 25 SPI_PUP 2 23 GND GND 3 22 GND Vamp1 4 21 Amp2_IN GND 5 20 GND GND 6 19 GND RF_IN 7 18 GND GND 8 17 GND DSA_OUT 16 GND 15 Power-up Programming DSA GND 14 GND 9 Small 32-Pin, 5.2mm x 5.2mm, MCM AMP2 GND 13 Single +5V Supply GND GND 12 OIP3/P1dB = +44/25dBm Typical at 2140MHz 24 SPI_ CONTROL Gain Control Range = 31.5dB (0.5dB Step Size) 1 GND 11 Max Gain = 29.5dB Typical at 2140MHz SPI_CLK GND 10 SPI Serial Control Programming AMP1 6-Bit Digital Step Attenuator 31 Frequency Range 400MHz to 2700MHz SPI_DATA Features 32 Package Style: MCM 32-Pin, 5.2mm x 5.2mm Functional Block Diagram Applications Cellular, 3G Infrastructure WiBro, WiMax, LTE Microwave Radio High Linearity Power Control Product Description RFMD’s RFDA2125 is a digital controlled variable gain amplifier for broadband applications with external matching to allow for configurations in different bands with a single module. It features exceptional linearity with noise figure less than 5.0dB in its maximum gain state. The gain of the 6-bit digital step attenuator is programmed with a serial mode control interface (SPI). The RFDA2125 is packaged in a small 5.2mm x 5.2mm leadless laminate MCM, which contains plated through thermal vias for ultra-low thermal resistance. Ordering Information RFDA2125SR RFDA2125SQ RFDA2125TR13 RFDA2125PCK-410 7” Sample reel with 100 pieces Sample bag with 25 pieces 13” Reel with 2500 pieces 400MHz to 2700MHz PCBA with 5-piece sample bag RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ an d 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 trademark s are the property of their respective owners. ©2006, RF Micro Devices, Inc. DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 1 of 26 RFDA2125 rfmd.com Absolute Maximum Ratings Rating Unit Supply Voltage Parameter +5.5 VDC DC Supply Current 300 mA Power Dissipation 1.6 W Max RF Input Power for 50Ω Output Load 24 dBm Operating Temperature (TCASE) -40 to +85 °C Storage Temperature -40 to +150 °C 160 °C 1000 (Class 1C) V Junction Temperature ESD Rating (HBM) Moisture Sensitivity Level 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. MSL3 Note: Operation of this device beyond any one of these limits may cause permanent damage. MTTF = 1E6 hours at 160°C junction temperature. Parameter Specification Min. Typ. Max. Unit Condition Temperature=25°C, VCC= 5V, standard application circuit Overall Gain Control Range Control Interface 31.5 dB 6 bit SPI interface Setting Time 250 ns TON, TOFF (10%/90% RF) Impedance 50 Ω Total Supply Voltage 4.75 5.0 5.25 V Total Supply Current 180 mA Thermal Resistance 60.8 °C/W +/- (0.2+5% attenuation setting) dB Step Accuracy Junction to backside of device Temperature=25°C, VCC= 5V, standard application circuit 728MHz to 746MHz Max Gain 37 dB P1dB 26 dBm Max gain Output IP3 44 dBm POUT=10dBm/tone, 1 MHz spacing, Max gain ACPR -67 dBc WCDMA TM1 64DPCH 1C, Output power = 13dBm Gain Flatness 0.1 dB Noise Figure 3.9 dB Input Return Loss 15 dB Output Return Loss 11 dB 2 of 26 Max gain 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 Parameter rfmd.com Specification Min. Typ. Max. Unit Temperature=25°C, VCC= 5V, standard application circuit 2110MHz to 2170MHz Max Gain Condition 29.5 dB P1dB 25 dBm Max gain Output IP3 44 dBm POUT=10dBm/tone, 1 MHz spacing, Max gain ACPR -65 dBc WCDMA TM1 64DPCH 1C, Output power = 13dBm Gain Flatness 0.3 dB Noise Figure 4.4 dB Input Return Loss 15 dB 17.5 dB Output Return Loss Temperature=25°C, VCC= VDD = 5V, standard application circuit 2620MHz to 2690MHz Max Gain Max gain 28.5 dB P1dB 25 dBm Max gain Output IP3 44 dBm POUT=10dBm/tone, 1 MHz spacing, Max gain ACPR -65 dBc WCDMA TM1 64DPCH 1C, Output power = 13dBm Gain Flatness 0.35 dB Noise Figure 4.5 dB 20 dB 15.5 dB Input Return Loss Output Return Loss DS130326 Max gain 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 3 of 26 RFDA2125 rfmd.com Typical Performance: 728MHz to 746MHz Application Circuit 4 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Typical Performance: 728MHz to 746MHz Application Circuit DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 5 of 26 RFDA2125 rfmd.com Typical Performance: 728MHz to 746MHz Application Circuit 6 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Typical Performance: 728MHz to 746MHz Application Circuit DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 7 of 26 RFDA2125 rfmd.com Evaluation Board Schematic 728MHz to 746MHz Application Circuit 8 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Evaluation Board Bill of Materials (BOM) 728MHz to 746MHz Application Circuit Reference Designator Description Evaluation Board RFDA2125 RES, 1K, 5%, 1/16W, 0603 CAP, 100pF, 5%, 50V, C0G, 0402 CAP, 1000pF, 10%, 50V, X7R, 0402 CAP, 10µF, 20%, 20V, TANT-B CAP, 68pF, 5%, 50V, C0G, 0402 RES, 0Ω, 0402 CAP, 3.3pF, +/-0.1pF, 50V, C0G, 0402 CAP, 7.0pF, +/-0.25pF, 50V, C0G, 0402 RES, 0Ω, 0603 IND, 6.8nH, 3%, T/F, HI-Q, 0201 IND, 10nH, 2%, W/W, 0402 IND, 56nH, 5%, W/W, 0603 CONN, SMA, END LNCH, FLT, 0.062" CONN, HDR, ST, PLRZD, 2-PIN, 0.100" CONN, HDR, ST, PLRZD, 5-PIN, 0.100" DNP DS130326 U1 R2, R6-R9 C7-C8, C14 C4-C5, C13 C3, C12 C9 C21 C11 C18 R3-R4, R10 L2 L3 L1 J1-J2 P3 P2 P1 Manufacturer Manufacturer's P/N RFMD Panasonic Industrial Co. Murata Electronics Murata Electronics Murata Electronics Murata Electronics Kamaya, Inc. Murata Electronics Murata Electronics KOA Speer Electronics, Inc. Murata Electronics Murata Electronics Coilcraft, Inc. Emerson Network Power AMP AMP RFDA2125410(A) RFDA2125 ERJ-3GEYJ102 GRM1555C1H101JA01D GRM155R71H102KA01D TAJB106M020RNJ GRM1555C1H680JZ01D RMC1/16SJPTH GRM1555C1H3R3BZ01E GRM1555C1H7R0CB01D RK73Z1JLTD LQP03TN6N8H02D LQW15AN10NG00D 0603CS-56NXJBC 142-0701-821 640454-2 640454-5 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 9 of 26 RFDA2125 rfmd.com Typical Performance: 2110MHz to 2170MHz Application Circuit 10 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Typical Performance: 2110MHz to 2170MHz Application Circuit DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 11 of 26 RFDA2125 rfmd.com Typical Performance: 2110MHz to 2170MHz Application Circuit 12 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Typical Performance: 2110MHz to 2170MHz Application Circuit DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 13 of 26 RFDA2125 rfmd.com Evaluation Board Schematic 2110MHz to 2170MHz Application Circuit 14 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Evaluation Board Bill of Materials (BOM) 2110MHz to 2170MHz Application Circuit Description Evaluation Board RFDA2125 RES, 1K, 5%, 1/16W, 0603 CAP, 100pF, 5%, 50V, C0G, 0402 CAP, 1000pF, 10%, 50V, X7R, 0402 CAP, 10µF, 20%, 20V, TANT-B CAP, 0.5pF, +/-0.05pF, 50V, C0G, 0402 CAP, 33pF, 5%, 50V, COG, 0402 Cap, 1.8pF, +/-0.1pF, 50V, HI-Q, 0402 1.2pF, 0.1pF, 50V, COG, 0402, LEAD FREE, HIGH Q RES, 0Ω, 0603 IND, 3.7nH, +/-0.1nH, T/F, HI-Q, 0201 IND, 1.9nH, +/-0.1nH, T/F, HI-Q, 0201 IND, 1.0nH, +/-0.1nH, T/F, HI-Q, 0201 IND, 24nH, 5%, W/W, 0603 CONN, SMA, END LNCH, FLT, 0.062" CONN, HDR, ST, PLRZD, 2-PIN, 0.100" CONN, HDR, ST, PLRZD, 5-PIN, 0.100" DNP DS130326 Reference Designator Manufacturer Manufacturer's P/N U1 R2, R6-R9 C7-C9, C14 C4-C5, C13 C3, C12 C19 C21 C11 RFMD Panasonic Industrial Co. Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics RFDA2125410(A) RFDA2125 ERJ-3GEYJ102 GRM1555C1H101JA01D GRM155R71H102KA01D TAJB106M020RNJ GJM1555C1HR50WB01D GRM1555C1H330JA01D GJM1555C1H1R8BB01D C18 Murata Electronics GJM1555C1H1R2BB01D R3-R4, R10 L4 L2 L3 L1 J1-J2 P3 P2 P1 KOA Speer Electronics, Inc. Murata Electronics Murata Electronics Murata Electronics Coilcraft, Inc. Emerson Network Power AMP AMP RK73Z1JLTD LQP03TN3N7B02D LQP03TN1N9B02D LQP03TN1N0B00 0603CS-24NXJBC 142-0701-821 640454-2 640454-5 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 15 of 26 RFDA2125 rfmd.com Typical Performance: 2620MHz to 2690MHz Application Circuit 16 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Typical Performance: 2620MHz to 2690MHz Application Circuit DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 17 of 26 RFDA2125 rfmd.com Typical Performance: 2620MHz to 2690MHz Application Circuit 18 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Typical Performance: 2620MHz to 2690MHz Application Circuit DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 19 of 26 RFDA2125 rfmd.com Evaluation Board Schematic 2620MHz to 2690MHz Application Circuit 20 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Evaluation Board Bill of Materials (BOM) 2620MHz to 2690MHz Application Circuit Reference Designator Description Evaluation Board RFDA2125 RES, 1K, 5%, 1/16W, 0603 CAP, 100pF, 5%, 50V, C0G, 0402 CAP, 100pF, 5%, 50V, C0G, 0402 CAP, 1000pF, 10%, 50V, X7R, 0402 CAP, 10µF, 20%, 20V, TANT-B CAP, 0.2pF, +/-0.05pF, 50V, C0G, 0402 CAP, 2.4pF, +/-0.1pF, 50V, C0G, 0402 CAP, 1.8pF, +/-0.1pF, 50V, HI-Q, 0402 CAP, 0.8pF, +/-0.1pF, 50V, HI-Q, 0402 RES, 0Ω, 0603 IND,3.0nH, +/-0.1nH, T/F, HI-Q, 0201 IND, 1.2nH, +/-0.1nH, T/F, HI-Q, 0201 IND, 24nH, 5%, W/W, 0603 CONN, SMA, END LNCH, FLT, 0.062" CONN, HDR, ST, PLRZD, 2-PIN, 0.100" CONN, HDR, ST, PLRZD, 5-PIN, 0.100" DNP DS130326 U1 R2, R6-R9 C17 C7-C9, C14-C15 C4-C5, C13 C3, C12 C19 C21 C11 C18 R3-R4, R10 L4 L2 L1 J1-J2 P3 P2 P1 Manufacturer Manufacturer's P/N RFMD Panasonic Industrial Co. Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics KOA Speer Electronics, Inc. Murata Electronics Murata Electronics Coilcraft, Inc. Emerson Network Power AMP AMP RFDA2125410(A) RFDA2125 ERJ-3GEYJ102 GRM1555C1H101JA01D GRM1555C1H101JA01D GRM155R71H102KA01D TAJB106M020RNJ GJM1555C1HR20WB01D GJM1555C1H2R4BB01D GJM1555C1H1R8BB01D GJM1555C1HR80BB01D RK73Z1JLTD LQP03TN3N0B00 LQP03TN1N2B00 0603CS-24NXJBC 142-0701-821 640454-2 640454-5 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 21 of 26 RFDA2125 rfmd.com Evaluation Board Assembly Drawing 22 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com Truth Table D5 1 1 1 1 1 1 0 0 Control Bit D3 D2 1 1 1 1 1 1 1 0 0 1 1 1 1 1 0 0 D4 1 1 1 1 1 0 1 0 D1 1 1 0 1 1 1 1 0 D0 1 0 1 1 1 1 1 0 Gain Relative to Maximum Gain 0dB -0.5dB -1dB -2dB -4dB -8dB -16dB -31.5dB Programming example – 6-Bit Power-up Programming Truth Table CLK MSB D5 DATA D4 D3 D2 LE D1 LSB D0 PUP Attenuator Setting Low Attenuation at max, 31.5dB High Attenuation at min, 0dB Serial Port Interface Logic Voltage Levels State Logic Low 0V to 0.8V High 2.0V to 5.0V DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 23 of 26 RFDA2125 rfmd.com SPI Timing Diagram t6 t1 t2 t4 t3 t8 t5 CLK DATA t7 LE t9 DOUT t10 SPI Timing Diagram Specifications Parameter t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 24 of 26 Limit 25 20 20 5 5 30 5 5 10 20 Unit MHz max ns min ns min ns min ns min ns min ns min ns min ns min ns max Comment CLK Frequency CLK High CLK Low DATA to CLK Setup time DATA to CLK Hold time DATA Valid LE to CLK Setup time CLK to LE Setup time LE pulse width Output set 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326 RFDA2125 rfmd.com PIN Names and Descriptions: Pin # Pin Name Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 SPI_CLK SPI_PUP GND Vamp1 GND GND RF_IN GND R GND GND GND GND GND GND GND DSA_OUT GND GND GND GND Amp2_IN GND GND GND RF_OUT GND VBIAS VREF GND VDSA SPI_LE SPI_DATA Serial clock input Power-up programming pin RF/DC Ground Connection Supply voltage for amplifier 1 RF/DC Ground Connection RF/DC Ground Connection RF Input, AC coupled RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection Digital step attenuator output RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF input of amplifier 2 RF/DC Ground Connection RF/DC Ground Connection RF/DC Ground Connection RF output, supply voltage for amplifier 2 RF/DC Ground Connection Supply voltage for the active bias circuit Control input to the active bias circuit to set ICQ. Can be used as a power-down pin RF/DC Ground Connection Supply voltage for digital step attenuator and SPI Serial latch enable input Serial data input DS130326 7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 25 of 26 RFDA2125 rfmd.com Package Drawing 5.2mm x 5.2mm Laminate Module Branding Diagram 26 of 26 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS130326