RFSA2614 RFSA2614Parallel Controlled Digital Step Attenuator 504000 MHz, 6Bit, 0.5 dB LSB PARALLEL CONTROLLED DIGITAL STEP ATTENUATOR 50-4000MHz, 6-BIT, 0.5dB LSB Features Frequency Range 50MHz to 4000MHz C1 C2 C4 C8 C16 C0.5 Package: QFN, 24-Pin, 4mmx4mm 24 23 22 21 20 19 N/C 1 18 N/C Vcc 2 17 N/C 16 N/C 15 RF2 Logi c Cir cuit 6-Bits, 31.5dB Range, 0.5dB Step N/C 3 RF1 4 High Linearity, IIP3>49dBm N/C 5 14 N/C 3V and 5V Logic Compatible On-chip Parallel Decoder N/C 6 13 ACG6 Parallel Programming Interface 11 12 ACG5 N/C 10 Product Description Transceiver RF and IF Applications Cellular, PCS, GSM, UMTS, LTE, WiMax/WLAN Wireless Data, Satellite Terminals 9 Functional Block Diagram Applications 8 ACG4 Single Supply, 3V to 5V Operation 7 ACG3 On-chip ESD Protection >500V HBM ACG2 6 Bit DSA ACG1 The RFSA2614 is a 6-bit Digital Step Attenuator (DSA) that features high linearity over the entire 31.5dB gain control range with excellent step accuracy in 0.5dB steps. The parallel-controlled RFSA2614 has an on-chip decoder that is both 3V and 5V compatible. It also offers a rugged Class 1B HBM ESD rating via on-chip ESD circuitry. Test Equipment Ordering Information RFSA2614SR RFSA2614SQ RFSA2614TR7 RFSA2614TR13 RFSA2614PCK-410 7” reel with 100 pieces Sample bag with 25 pieces 7” reel with 750 pieces 13” reel with 2500 pieces 50MHz to 4000MHz 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. ©2006, RF Micro Devices, Inc. DS110126 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 1 of 9 RFSA2614 Absolute Maximum Ratings Parameter Supply Voltage Rating Unit 5.5 VDC DC Supply Current 15 mA DC Power Dissipation 83 mW Max RF Input Power 27 dBm Operating Temperature (TCASE) -40 to +85 °C Storage Temperature -40 to +150 °C Junction Temperature 150 °C ESD Rating (HBM) Frequency Range 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. MSL1 Min. Specification Typ. 50 Insertion Loss Gain Control Range Max. 4000 1.6 1.9 Unit Condition MHz dB 500MHz, 0dB attenuation 1.7 dB 850MHz, 0dB attenuation 2.1 dB 2140MHz, 0dB attenuation dB 2700MHz, 0dB attenuation 2.2 Step Accuracy RoHS status based on EUDirective2002/95/EC (at time of this document revision). Class 1B Moisture Sensitivity Level Parameter 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. 2.8 2.8 dB 3800MHz, 0dB attenuation 31.5 dB 0.5dB step size ±(0.15+5.0% attenuation setting) dB IIP3 >49 dBm 700MHz to 2700MHz, states 0 thru 27.5dB IIP3 >45 dBm 700MHz to 2700MHz, states 28 thru 31.5dB Input P1dB >27 dBm 700MHz to 2700MHz, all states Return Loss >18 dB 700MHz to 2700MHz, all states Control Interface Settling Time Switching Speed Supply Voltage (VDD) bit Parallel interface nS tRISE, tFALL (10%/90% RF) nS tON, tOFF (50% CTL to 10%/90% RF) V Typical performance based on 5V opreation. 200 3.0 Supply Current Control Voltage (VCTL) 6 200 5.0 5.25 3.5 mA 0 0.8 V Low 2.0 VDD V High Notes: 1. VDD =5V, VCTL =3V, T=25°C 2. Broadband Application Circuit (with ACG capacitors) 3. IIP3 measured with 1MHz spacing, PIN =4dBm/tone for frequency<300MHz, PIN =10dBm/tone for frequency>300MHz 2 of 9 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS110126 RFSA2614 Typical Broadband Application Circuit Performance (with ACG capacitors) Gain versus Frequency, Reference State (0dB) Normalized Attenuation, Major States 0.0 0.0 85C -0.5 -5.0 25C -40C -10.0 -1.5 S21 (dB) S21 (dB) -1.0 -2.0 -15.0 0.5dB 2dB 8dB 31.5dB -20.0 -2.5 -25.0 -3.0 -30.0 -3.5 -4.0 -35.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 4.0 0.5 1.0 Frequency (GHz) 1.5 2.0 2.5 3.0 3.5 4.0 3.5 4.0 Frequency (GHz) RF1 RL versus Frequency, Major States RF2 RL versus Frequency, Major States 0 0 0dB 0.5dB 1dB 2dB -5 0dB 0.5dB 1dB 2dB 8dB 31.5dB -5 4dB 8dB 4dB 16dB 31.5dB 16dB -10 S22 (dB) -10 S11 (dB) 1dB 4dB 16dB -15 -15 -20 -20 -25 -25 -30 -30 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.5 1.0 Frequency (GHz) 1.5 2.0 2.5 3.0 Frequency (GHz) Input IP3 versus Frequency, All States, 25C Relative Phase, Major States 60 60 0.5dB 2dB 8dB 31.5dB 50 55 30 IIP3 (dBm) S21 (dB) 40 1dB 4dB 16dB 20 10 50 45 States 28 thru 31.5dB 0 40 -10 -20 35 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) DS110126 2.5 3.0 3.5 4.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (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 9 RFSA2614 Typical Broadband Application Circuit Performance (with and without ACG capacitors) Worst Case Step Error between Successive States (w/ACG caps) 2.0 1.5 1.5 1.0 1.0 0.5 0.5 Step Error (dB) Step Error (dB) Worst Case Step Error between Successive States (no ACG caps) 2.0 0.0 -0.5 -1.0 0.0 -0.5 -1.0 -1.5 -1.5 -2.0 -2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.5 1.0 Frequency (GHz) 2.0 1.5 1.5 1.0 1.0 0.5 0.5 Step Error (dB) Step Error (dB) 2.0 0.0 -0.5 -1.0 2.5 3.0 3.5 4.0 0.0 -0.5 -1.0 -1.5 -1.5 -2.0 -2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.5 1.0 Frequency (GHz) 2.0 1.5 1.5 1.0 0.5 0.5 Step Error (dB) 1.0 0.0 -0.5 -1.5 450 MHz 150 MHz 850 MHz 1 GHz 2 GHz 2.7 GHz 3.3 GHz 3.8 GHz 2.0 2.5 3.0 3.5 4.0 Step Error versus Attenuation (no ACG caps) 2.0 -1.0 1.5 Frequency (GHz) Step Error versus Attenuation (w/ACG caps) Step Error (dB) 2.0 Step Error versus Frequency, All States (no ACG caps) Step Error versus Frequency, All States (w/ACG caps) 0.0 -0.5 850 MHz 1 GHz 2 GHz 2.7 GHz 3.3 GHz 3.8 GHz -1.0 -1.5 -2.0 -2.0 0 4 8 12 16 20 Attenuation State (dB) 4 of 9 1.5 Frequency (GHz) 24 28 32 0 4 8 12 16 20 24 28 32 Attenuation State (dB) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS110126 RFSA2614 Truth Table Control Bit Relative Gain Setting C16 C8 C4 C2 C1 C0.5 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 Logic Voltage Levels DS110126 State Logic Low 0V to 0.8V High 2.0V to 5.0V 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 5 of 9 RFSA2614 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 EPAD 6 of 9 Function NC VDD NC RF1 NC ACG ACG ACG ACG ACG ACG NC ACG NC RF2 NC NC NC D5 D4 D3 D2 D1 D0 GND Description No internal connection. EVB can be ground or no connect. Power supply. No internal connection. EVB can be ground or no connect. RF port. External DC block required. No internal connection. EVB can be ground or no connect. AC ground connection for operation below 500MHz. AC ground connection for operation below 500MHz. AC ground connection for operation below 500MHz. AC ground connection for operation below 500MHz. AC ground connection for operation below 500MHz. AC ground connection for operation below 500MHz. No internal connection. EVB can be ground or no connect. AC ground connection for operation below 500MHz. No internal connection. EVB can be ground or no connect. RF port. External DC block required. No internal connection. EVB can be ground or no connect. No internal connection. EVB can be ground or no connect. No internal connection. EVB can be ground or no connect. 16dB control bit. 8dB control bit. 4dB control bit. 2dB control bit. 1dB control bit. 0.5dB control bit. DC and RF ground. Must be soldered to EVB ground plane over a bed of vias for thermal and RF performance. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS110126 RFSA2614 C16 C8/PUP C4/CLK C2/LE C1 C05/DATA C025 GND R8 U1 R3 R2 R1 R7 C8 C7R5 R4 C9 C6 C5 C4 C3 C2 C1 J1 RF1 R6 P1 VDD Evaluation Board Assembly Drawing J2 RF2 C12 C17 C14 C16 C15 C13 C11 C18 SA26X4410(C) J99 J100 C19 C20 15.5MIL LINE DS110126 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 7 of 9 RFSA2614 Evaluation Board Schematic (with ACG capacitors) 8 of 9 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS110126 RFSA2614 Evaluation Board Bill of Materials Description Reference Designator Manufacturer Manufacturer's P/N C13, C15, C16, C17 Murata GRM155R71H681KA01E PCB SA26x4410(C) CAP, 680pF, 10%, 50V, X7R, 0402 CAP, 470pF, 10%, 50V, X7R, 0402 C11, C12, C19, C20 Murata GRM155R71H471KA01E CAP, 1000pF, 10%, 50V, X7R, 0402 C7 Taiyo Yuden (USA), Inc. RM UMK105BJ102KV-F RES, 0, 0402 R1-R6. R8 Kamaya, Inc RMC1/16SJPTH DNI R7, C1-C6, C8, C9, C14, C18-C20 CONN, SMA, END LNCH, UNIV, HYB MNT, FLT J1, J2, J99, J100 Heilind Electronics PER MAT-21-1038 CONN, HDR, ST, PLRZD, 9-PIN P1 ITW Pancon MPSS100-9-C RFSA2614SB U1 RFMD RFSA2614 Package Drawing PIN 1 DOT BY MARKING 2 .7 00± 0.050 Exp.DAP 4.00 0±0 .050 PIN #1 IDEN TIFIC ATION C HAMFER 0.300 X 4 5° 0.40 0±0 .050 4 .0 00± 0.050 SA2614 YYWW Trace Code 0 .5 00 Bsc 2.70 0±0 .0 50 Exp .D AP 0.25 0±0 .0 50 2.500 R ef. TOP VIEW BOTTOM VIEW .850 ±0.05 0 0 .0 00-.05 0 .20 3 Ref. SIDE VIEW YYWW = Date Code, where YY=year, WW=week Trace Code to be assigned by assembly SubCon DS110126 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 9 of 9