RFSA2614

RFSA2614Parallel Controlled Digital Step Attenuator 504000 MHz, 6Bit, 0.5 dB LSB RFSA2614 PARALLEL CONTROLLED DIGITAL STEP ATTENUATOR 50-4000MHz, 6-BIT, 0.5dB LSB Package: QFN, 24-Pin, 4mmx4mm C0.5 C1 C4 24 23 22 21 C8 20 C2   Features  N/C Vcc N/C RF1 N/C N/C 1 2 3 4 5 6 C16 19 18 N/C N/C N/C RF2 N/C ACG6 Frequency Range 50MHz to 4000MHz 6-Bits, 31.5dB Range, 0.5dB Step High Linearity, IIP3>49dBm 3V and 5V Logic Compatible On-chip Parallel Decoder Parallel Programming Interface On-chip ESD Protection >500V HBM Single Supply, 3V to 5V Operation Logi c Cir cuit 17 16 15 14 13  6 Bit DSA      7 8 9 10 11 12 A CG4 ACG3 A CG5 ACG1  Functional Block Diagram Applications  Product Description 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. Transceiver RF and IF Applications Cellular, PCS, GSM, UMTS, LTE, WiMax/WLAN Wireless Data, Satellite Terminals 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 ACG2 GaAs pHEMT Si CMOS Si BJT N/C 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 sales-support@rfmd.com. 1 of 9 RFSA2614 Absolute Maximum Ratings Parameter Supply Voltage DC Supply Current DC Power Dissipation Max RF Input Power Operating Temperature (TCASE) Storage Temperature Junction Temperature ESD Rating (HBM) Moisture Sensitivity Level Rating 5.5 15 83 27 -40 to +85 -40 to +150 150 Class 1B MSL1 Unit VDC mA mW dBm °C °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 Frequency Range Insertion Loss Min. 50 Specification Typ. 1.6 1.7 2.1 2.2 2.8 Max. 4000 1.9 Unit MHz dB dB dB Condition 500MHz, 0dB attenuation 850MHz, 0dB attenuation 2140MHz, 0dB attenuation 2700MHz, 0dB attenuation 3800MHz, 0dB attenuation 0.5dB step size 700MHz to 2700MHz, states 0 thru 27.5dB 700MHz to 2700MHz, states 28 thru 31.5dB 700MHz to 2700MHz, all states 700MHz to 2700MHz, all states Parallel interface tRISE, tFALL (10%/90% RF) tON, tOFF (50% CTL to 10%/90% RF) Typical performance based on 5V opreation. Low High 2.8 dB dB dB dB dBm dBm dBm dB bit nS nS Gain Control Range Step Accuracy IIP3 IIP3 Input P1dB Return Loss Control Interface Settling Time Switching Speed Supply Voltage (VDD) Supply Current Control Voltage (VCTL) 0 2.0 3.0 31.5 ±(0.15+5.0% attenuation setting) >49 >45 >27 >18 6 200 200 5.0 3.5 0.8 VDD 5.25 V mA V V 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 frequency300MHz 2 of 9 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS110126 RFSA2614 Typical Broadband Application Circuit Performance (with ACG capacitors) Gain versus Frequency, Reference State (0dB) 0.0 -0.5 -1.0 85C 25C -40C Normalized Attenuation, Major States 0.0 -5.0 -10.0 S21 (dB) S21 (dB) -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 -15.0 -20.0 -25.0 -30.0 -35.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.5dB 2dB 8dB 31.5dB 1dB 4dB 16dB Frequency (GHz) Frequency (GHz) RF1 RL versus Frequency, Major States 0 0dB 1dB 0.5dB 2dB RF2 RL versus Frequency, Major States 0 0dB 1dB 0.5dB 2dB 8dB 31.5dB -5 4dB 16dB 8dB 31.5dB -5 4dB 16dB -10 -10 -15 S22 (dB) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 S11 (dB) -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 Frequency (GHz) Frequency (GHz) Relative Phase, Major States 60 50 40 Input IP3 versus Frequency, All States, 25C 60 0.5dB 2dB 8dB 31.5dB 1dB 4dB 16dB 55 20 10 0 IIP3 (dBm) S21 (dB) 30 50 45 States 28 thru 31.5dB 40 -10 -20 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 35 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) DS110126 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 9 RFSA2614 Typical Broadband Application Circuit Performance (with and without ACG capacitors) 2.0 1.5 1.0 0.5 Worst Case Step Error between Successive States (w/ACG caps) 2.0 1.5 1.0 0.5 Worst Case Step Error between Successive States (no ACG caps) Step Error (dB) 0.0 -0.5 -1.0 -1.5 -2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Step Error (dB) 0.0 -0.5 -1.0 -1.5 -2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Frequency (GHz) Frequency (GHz) Step Error versus Frequency, All States (w/ACG caps) 2.0 1.5 1.0 0.5 2.0 1.5 1.0 0.5 Step Error versus Frequency, All States (no ACG caps) Step Error (dB) 0.0 -0.5 -1.0 -1.5 -2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Step Error (dB) 0.0 -0.5 -1.0 -1.5 -2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Frequency (GHz) Frequency (GHz) Step Error versus Attenuation (w/ACG caps) 2.0 1.5 1.0 0.5 0.0 -0.5 450 MHz 150 MHz 1 GHz 2.7 GHz 3.8 GHz Step Error versus Attenuation (no ACG caps) 2.0 1.5 1.0 0.5 0.0 -0.5 850 MHz 1 GHz Step Error (dB) -1.0 -1.5 -2.0 0 4 Step Error (dB) 850 MHz 2 GHz 3.3 GHz -1.0 2 GHz 2.7 GHz -1.5 -2.0 3.3 GHz 3.8 GHz 8 12 16 20 24 28 32 0 4 8 12 16 20 24 28 32 Attenuation State (dB) Attenuation State (dB) 4 of 9 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS110126 RFSA2614 Truth Table Control Bit C16 1 1 1 1 1 1 0 0 C8 1 1 1 1 1 0 1 0 C4 1 1 1 1 0 1 1 0 C2 1 1 1 0 1 1 1 0 C1 1 1 0 1 1 1 1 0 C0.5 1 0 1 1 1 1 1 0 Relative Gain Setting Max gain -0.5dB -1dB -2dB -4dB -8dB -16dB -31.5dB Logic Voltage Levels State Low High Logic 0V to 0.8V 2.0V to 5.0V DS110126 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 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 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. 6 of 9 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS110126 RFSA2614 Evaluation Board Assembly Drawing C05/DATA C4/CLK C8/PUP C2/LE C025 GND VDD P1 R7 C8 C7R5 J1 RF1 R6 R4 R1 R2 R8 U1 C12 C13 C11 C18 C17 C14 C16 C15 SA26X4410(C) J99 C19 C20 J100 15.5MIL LINE DS110126 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. R3 C9 C6 C5 C4 C3 C2 C1 C16 C1 J2 RF2 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 sales-support@rfmd.com. DS110126 RFSA2614 Evaluation Board Bill of Materials Description PCB CAP, 680pF, 10%, 50V, X7R, 0402 CAP, 470pF, 10%, 50V, X7R, 0402 CAP, 1000pF, 10%, 50V, X7R, 0402 RES, 0 , 0402 DNI CONN, SMA, END LNCH, UNIV, HYB MNT, FLT CONN, HDR, ST, PLRZD, 9-PIN RFSA2614SB C13, C15, C16, C17 C11, C12, C19, C20 C7 R1-R6. R8 R7, C1-C6, C8, C9, C14, C18-C20 J1, J2, J99, J100 P1 U1 Heilind Electronics ITW Pancon RFMD PER MAT-21-1038 MPSS100-9-C RFSA2614 Murata Murata Taiyo Yuden (USA), Inc. Kamaya, Inc Reference Designator Manufacturer Manufacturer's P/N SA26x4410(C) GRM155R71H681KA01E GRM155R71H471KA01E RM UMK105BJ102KV-F RMC1/16SJPTH Package Drawing PIN 1 DOT BY MARKING 4.00 0±0 .050 2 .7 00± 0.050 Exp.DAP 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 .850 ±0.05 0 BOTTOM VIEW 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 sales-support@rfmd.com. 9 of 9