RFDA0025 RFDA0025Digital Controlled Variable Gain Amplifier DIGITAL CONTROLLED VARIABLE GAIN AMPLIFIER 50MHz to 850MHz Operation 6-Bit Digital Step Attenuator Serial Control Interface 1 GND 2 GND ATTOUT 31.5dB Attenuation Range (0.5dB Step) DATA CLK 29 LE 30 GND GND 31 AMPOUT GND 32 28 27 26 25 24 NC 23 NC 3 22 NC 4 21 NC 20 NC AMP Features AMPIN GND Package: MCM 32-Pin, 5.2mmx5.2mm 6-bit SPI ACG1 5 ACG2 6 19 NC DSA High OIP3/P1dB=+42/20dBm ACG3 7 18 NC Single +5V Supply ACG4 8 17 Vdd 16 NC 15 PUP 14 NC 13 GND 12 E-pad GND Functional Block Diagram Transceiver IF DVGA Cellular, PCS, 3G Infrastructure Wireless Data, Satellite Terminals 11 ATTIN Applications 10 GND 9 ACG6 Footprint Compatible with 32-Pin 5mmx5mm QFN ACG5 Product Description RFMD’s RFDA0025 is a digital controlled variable gain amplifier featuring high linearity over the entire gain control range. The 6-bit digital step attenuator is programmed with a serial mode control interface. The RFDA0025 is packaged in a small 5.2mmx5.2mm leadless laminate MCM with plated through thermal vias for ultra low thermal resistance. The footprint for this module is directly compatible with most 32-pin 5mmx5mm QFNs. The amplifier’s bias choke and DC blocks are external, allowing for optimum performance over specific bands within 50MHz to 850MHz. Ordering Information RFDA0025SQ RFDA0025SR RFDA0025R7 RFDA0025R13 RFDA0025PCK-410 Sample bag with 25 pieces 7” Reel with 100 pieces 7” Reel with 750 pieces 13” Reel with 2500 pieces 50MHz to 850MHz PCBA with 5-piece sample bag Optimum Technology Matching® Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT Si CMOS Si BJT GaN HEMT BiFET HBT LDMOS 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. ©2011, RF Micro Devices, Inc. DS120817 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 1 of 11 RFDA0025 Absolute Maximum Ratings Parameter Supply Voltage (VCC, VDD) Rating Unit 5.5 V Collector Current (IC) 115 mA Power Dissipation 630 mW Input RF Power +20 dBm Operating Temperature (TCASE) -40 to +85 °C Storage Temperature -40 to +150 °C +150 °C Junction Temperature (TJ) ESD Rating (HBM) 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. 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. RFMD Green: RoHS compliant per EU Directive 2002/95/EC, halogen free per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and red phosphorus as a flame retardant, and <2% antimony in solder. Class 1B Moisture Sensitivity Level MSL 3 Notes: 1. PDISS=VCC*IC-RF Output Power+RF Input Power Parameter Min. Frequency Max. 50 Gain - 150MHz (Max Gain State) Gain - 850MHz (Max Gain State) 16.2 17.7 Unit MHz dB Attenuation=0dB, 150MHz 19.2 dB Attenuation=0dB, 850MHz 0.5dB LSB, 6 bits 31.5 dB ±(0.1 +5% attenuation setting) dB 42 dBm Output IP3 - 150MHz Condition 850 18.7 Gain Control Range Step Accuracy Specification Typ. Major state max error 150MHz, POUT =0dBm/tone, 1MHz spacing Output IP3 - 850MHz 33 35 dBm 850MHz, POUT =0dBm/tone, 1MHz spacing Output P1dB 17 20 dBm Attenuation=0dB Input Return Loss 20 dB 150MHz Output Return Loss 25 dB 150MHz Noise Figure 4.7 dB 150MHz, Attenuation=0dB tRISE, tFALL 250 ns 10/90% RF Amplifier Supply Voltage (VCC) 4.75 Attenuator Supply Voltage (VDD) Total Supply Current Thermal Resistance 5 5.25 3.3 5 5.25 V 80 90 100 mA 57 Control Interface 6-Bit, Serial Control Voltages Low, VCTL =0 to 0.8 VDC High, VCTL =2.0 to VDD VDC V Sum of currents from VDD and VCC °C/W Notes: 1. All measurements based on the 50MHz to 850MHz Application Circuit, T=25°C 2. VCC =VDD =+5V, VCTL =0/5V 2 of 11 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS120817 RFDA0025 Typical Performance - 50MHz to 850MHz Broadband Application Circuit Gain over Temperature, Max Gain Gain, Major States, 25C 30 25 20 20 10 Gain (dB) 15 Gain (dB) 0 5 -10 -20 -30 0.05 10 0dB 1dB 0.5dB 2dB 4dB 16dB 8dB 31.5dB +25C 0 -40C +85C -5 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0 0.85 1 2 Frequency (GHz) 0dB 1dB 4dB 16dB -5 5 6 0 0.5dB 2dB 8dB 31.5dB -5 -10 -10 IRL (dB) 4 Input RL over Temperature, Max Gain Input RL, Major States, 25C 0 3 Freq (GHz) IRL (dB) -15 -15 -20 -20 -25 -25 -30 0.05 -30 +25C -40C +85C 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0 0.85 1 2 0 0 -5 -5 ORL (dB) -15 6 -15 -20 -20 0dB 1dB 4dB 16dB -25 0.5dB 2dB 8dB 31.5dB +25C -40C +85C -25 -30 0.15 0.25 0.35 0.45 0.55 Frequency (GHz) DS120817 5 -10 -10 -30 0.05 4 Output RL over Temperature, Max Gain Output RL, Major States, 25C ORL (dB) 3 Freq (GHz) Frequency (GHz) 0.65 0.75 0.85 0 1 2 3 4 5 6 Freq (GHz) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 3 of 11 RFDA0025 Isolation over Temperature, Max Gain Isolation, Major States, 25C Isolation (dB) 0 0 -10 -5 -20 -10 -30 -15 -40 Isolation (dB) -20 -50 -25 -60 -30 -70 -35 0.5dB -80 0.05 1dB 2dB 4dB 8dB 16dB 0.55 0.65 +25C -40C +85C 31.5dB -40 0.15 0.25 0.35 0.45 0.75 0.85 0 1 2 3 Frequency (GHz) 3 3 2 2 1 1 Error (dB) 0 0.5dB 2dB 8dB 31.5dB -2 0 0.15 0.25 0.35 0.45 0.55 0.65 1dB 4dB 16dB 0.75 -2 -3 0.05 0.85 0.15 0.25 0.35 45 2 30 4dB 16dB 0.65 0.75 0.85 15 1 Phase (deg) 0 0 -15 -1 0.5dB 2dB 8dB 31.5dB -2 0.15 0.25 0.35 0.45 0.55 Frequency (GHz) 4 of 11 0.55 1dB 2dB 8dB 31.5dB Normalized Phase Error, Major States, 25C Attenuation Error, Major States, -40C 3 -3 0.05 0.45 0.5dB Frequency (GHz) Frequency (GHz) Error (dB) 6 -1 -1 -3 0.05 5 Attenuation Error, Major States, 85C Attenuation Error, Major States, 25C Error (dB) 4 Freq (GHz) 0.65 1dB 4dB 16dB 0.75 0.5dB 2dB 8dB 31.5dB -30 0.85 -45 0.05 0.15 0.25 0.35 0.45 0.55 0.65 1dB 4dB 16dB 0.75 0.85 Frequency (GHz) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS120817 RFDA0025 Successive Step Error, 25C 1.00 0.75 0.50 Error (dB) 0.25 0.00 -0.25 -0.50 150MHz 500MHz -0.75 850MHz -1.00 0 5 10 15 20 25 30 Attenuation (dB) OIP3, Major States, 25C, POUT/tone=0dBm OIP3 over Temperature, Max Gain OIP3 (dBm) 46 46 44 44 42 42 40 40 OIP3 (dBm) 38 36 36 34 32 38 34 +25C -40C 32 0.15 0.5dB 1dB 2dB 4dB 8dB 16dB +85C 30 0.05 0dB 0.25 0.35 0.45 0.55 0.65 0.75 30 0.05 0.85 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 Frequency (GHz) Frequency (GHz) OIP3 versus POUT, Max Gain, 150 MHz P1dB over Temperature, Max Gain 46 22 44 21 42 40 20 OIP3 (dBm) P1dB (dBm) 19 38 36 34 +25C 18 -40C 25C -40C 32 85C +85C 17 0.05 30 0.15 0.25 0.35 0.45 0.55 Frequency (GHz) DS120817 0.65 0.75 0.85 -5 -2 1 4 7 10 POUT per Tone (dBm) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 5 of 11 RFDA0025 DCIV over Temperature, Max Gain NF over Temperature, Max Gain 120 7 110 6 100 NF (dB) Icc (mA) 5 90 4 80 3 25C -40C 85C 70 +25C +85C 2 0.05 60 0.15 0.25 0.35 0.45 0.55 0.65 0.75 4.5 0.85 Frequency (GHz) 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 Vcc (V) Truth Table DSA Control Bit D5 16dB D4 8dB D3 4dB D2 2dB D1 1dB D0 0.5dB Relative Gain Setting 1 1 1 1 1 1 Max Gain 1 1 1 1 1 0 -0.5dB 1 1 1 1 0 1 -1dB 1 1 1 0 1 1 -2dB 1 1 0 1 1 1 -4dB 1 0 1 1 1 1 -8dB 0 1 1 1 1 1 -16dB 0 0 0 0 0 0 -31.5dB 6 of 11 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS120817 RFDA0025 Serial Port Interface: SPI Timing Diagram t6 t1 t2 t3 t4 t8 t5 CLK DATA t7 LE t9 DOUT t10 Programming Example - 6-Bit CLK DATA MSB D5 D4 D3 D2 D1 LSB D0 LE SPI Timing Diagram Specifications Parameter Limit Unit Comment t1 25 MHz max CLK Frequency t2 20 ns min CLK High t3 20 ns min CLK Low t4 5 ns min DATA to CLK Setup Time t5 5 ns min DATA to CLK Hold Time t6 30 ns min DATA Valid t7 5 ns min LE to CLK Setup Time t8 5 ns min CLK to LE Setup Time t9 10 ns min LE Pulse Width t10 20 ns max Output Set Control Voltage Table State VDD =+3V VDD=+5V Low 0V to 0.8V High 2.0 to VDD DS120817 Power-up Programming Truth Table PUP Attenuator Setting 0V to 0.8V Low Attenuation at Max, 31.5dB 2.0 to VDD High Attenuation at Min, 0dB 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 7 of 11 RFDA0025 Pin Names and Description Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Function AMPIN GND GND ATTOUT ACG1 ACG2 ACG3 ACG4 ACG5 ACG6 GND ATTIN GND NC PUP 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 NC VDD NC NC NC NC NC NC NC CLK DATA LE GND AMPOUT/VCC GND GND GND 8 of 11 Description Amplifier Input. DC Block Required. RF/DC Ground Connection. RF/DC Ground Connection. Digital Attenuator Output. DC Block Required. External bypass capacitor required for F < 500MHz (impacts step error). External bypass capacitor required for F < 500MHz (impacts step error). External bypass capacitor required for F < 500MHz (impacts step error). External bypass capacitor required for F < 500MHz (impacts step error). External bypass capacitor required for F < 500MHz (impacts step error). External bypass capacitor required for F < 500MHz (impacts step error). RF/DC Ground Connection. Digital Attenuator Input. DC Block Required. RF/DC Ground Connection. No Internal Connection. Power-up Programming Pin. Low=Max Attenuation at Power-up (-31.5dB). High=Min Attenuation at Power-up (0dB). No Internal Connection. Digital Attenuator Supply Voltage. No Internal Connection. No Internal Connection. No Internal Connection. No Internal Connection. No Internal Connection. No Internal Connection. No Internal Connection. Serial Clock. Serial Data. Latch Enable. RF/DC Ground Connection. Amplifier Output and Bias. External Choke, Bypassing, and DC Blocks Required. RF/DC Ground Connection. RF/DC Ground Connection. RF/DC Ground Connection. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS120817 RFDA0025 Evaluation Board Schematic 50MHz to 850MHz Application Circuit J3 SM A J4 SM A 50 ohm Micro Strip 39mil GND1 C1 C2 270pF 1000pF GND1 GND VCC C3 C4 1uF GND 270pF C5 0.1uF 2 3 1 A M PI N G ND G ND 5 6 4 A T T OU T A CG1 7 LE PUP DATA NC CL K GND 31 L1 1200nH 30 29 28 GND C10 J2 AM P OUT 1000pF GND 27 GND 26 25 P1 NC NC RP2 1K 8 18 17 32 24 16 NC NC 15 1K GND NC R1 AMPOUT/VCC GND V DD PUP RFDA0025 22 14 GND ATTIN GND 23 13 GND U1 NC 1000pF C7 1000pF GND GND GND 21 12 ACG 6 NC 11 20 10 GND C9 J1 AT TI N NC 270pF ACG 5 19 9 A CG2 270pF C8 A CG4 GND A CG3 8 C6 C12 1000pF CL K DA T A LE C13 0.1uF C14 1uF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 LE DATA CL K CL K DATA LE PUP GND VDD PUP R2 2 3 4 5 6 7 8 9 DNP 10 11 HDR_1 X14 GND 12 P3 24 TXD GND DT R# CB 0 RT S# CB 1 VI O VCC RXD RS T RI # 3V3 GND CB 3 DS R# 23 22 21 20 19 18 17 PU1 DCD# PU2 CT S# VCC CB 4 US B CB 2 SL D 16 15 14 13 V DD UM 232R GND P2 1 2 VCC GND HDR_1 X2 Evaluation Board Bill of Materials (BOM) 50MHz to 850MHz Application Circuit Description RDA1005L w/ USB Evaluation Board RFDA0025, 5.2 x 5.2sq. mm,32-Pin Laminate CAP, 270pF, 5%, 50V, C0G, 0402 CAP, 1000pF, 10%, 50V, X7R, 0402 Reference Designator Manufacturer Manufacturer's P/N PCB Itself Dynamic Details (DDI) Torronto RDA1005L410(C) U1 RFMD RFDA0025 C1, C3, C6, C8 Murata Electronics GRM1555C1H271JA01E C2, C7, C9-C10, C12 Murata Electronics GRM155R71H102KA01E CAP, 1µF, 10%, 16V, X7R, 0805 C4, C14 Murata Electronics GRM21BR71C105KA01K CAP, 0.1µF, 10%, 16V, X7R, 0603 GRM188R71C104KA01D C5, C13 Murata Electronics IND, 1200nH, 5%, W/W, 1008 L1 Coilcraft 1008CS-122XJLC RES, 1K, 5%, 1/16W, 0402 R1 Kamaya, Inc RMC1/16S-102JTH RES ARRAY, 4-ELEM, 1K, 5%, SMD 4 x 0402 RP2 KOA CN1E4KTTD102J CONN, HDR, ST, PLRZD, 14-Pin, 0.100" P1 ITW Pancon MPSS100-14-C CONN, HDR, ST, PLRZD, 2-Pin, 0.100" P2 ITW Pancon MPSS100-2-C CONN, SKT, 24-PIN DIP, 0.600", T/H P3 Aries Electronics Inc. 24-6518-10 CONN, SMA, END LNCH, FLT, 0.062" J1-J4 Emerson Network Power 142-0701-821 M1 (See Note) Future Technology Devices Int'l UM232R C11, R2, RP3-RP4 N/A N/A MOD, USB TO SERIAL UART, SSOP-28 DNP Note: M1 is to be mounted into P3 with respect to the Pin 1 alignment of M1 and P3 DS120817 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 9 of 11 RFDA0025 Evaluation Board Assembly Drawing RFDA0025410(C) 10 of 11 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS120817 RFDA0025 Package Drawing 5.2mmx5.2mm Laminate Module 5.20 Sq 1.36 0.46 3.75 Sq Pin 1 0.25 0.13 32 plcs 0.50 28 plcs 0.50 0.10 4 plcs 4 plcs Dimensions in millimeters DS120817 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 11 of 11