75 VOLTAGE CONTROLLED ATTENUATOR GND RFIN. Product Description. Ordering Information. GaAs MESFET Si BiCMOS Si CMOS Si BJT

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RFS313 75W Voltage Controlled ttenuator RFS313 75 VOLTGE CONTROLLED TTENUTOR Package Style: QFN, 16-Pin,.

1 RFS313 75W Voltage Controlled ttenuator RFS VOLTGE CONTROLLED TTENUTOR Package Style: QFN, 16-Pin,.9mm x 3mm x 3mm MODE VDD VC GND Features Patent Pending Circuit rchitecture roadband 5MHz to 3MHz Frequency Range 3d ttenuation Range +5dm IIP3 Typical +8dm IIP2 Typical Low Distortion -65dc CSO and -7dc CT for 112 Channel 39dmV Input High 1d Compression Point >+3dm Low Supply Current 1m Typical 5V Power Supply Linear in d Control Characteristic Internal Temperature Compensation Class 1C ESD (1V) Complete Solution in a Small 3mm x 3mm, QFN Package 3.3V Version vailable RFS323 pplications Cable Modems CTV High Linearity Power Control GND NC RFIN NC Product Description GND CONTROL LOCK TTEN GND Functional lock Diagram RFOUT RFMD's RFS313 is a fully monolithic analog voltage controlled attenuator (VC) featuring exceptional linearity over a typical temperature compensated 3d gain control range. It incorporates a revolutionary new circuit architecture to solve a long standing industry problem: high IP3, high attenuation range, low DC current, broad bandwidth and temperature compensated linear in d control voltage characteristic. This voltage controlled attenuator is controlled by a single positive control voltage with on-chip DC conditioning circuitry. The slope of the control voltage versus gain is selectable. The RFS313 draws a very low 1m current and is packaged in a small 3mm x 3mm QFN. This attenuator is matched to 75 over its rated control range and frequency with no external matching components required. Typical VCs in this performance category have poor inherent attenuation versus temperature and poor nonlinear attenuation versus control voltage characteristics. To correct these shortcomings, other VCs require extensive off chip analog support circuitry that consume valuable PC area and additional DC power. This game changing product incorporates the complete solution in a small 3mm x 3mm QFN package that reduces the footprint by 2X in area and reduces the DC power by 1X over conventional PIN diode approaches. Ordering Information RFS313SR 7 Sample reel with 1 pieces RFS313SQ Sample bag with 25 pieces RFS313TR7 7 Reel with 25 pieces RFS313PCK-41 5MHz to 3MHz PC with 5-piece sample bag GND GND GND NC NC Optimum Technology Matching pplied Gas HT SiGe icmos Gas phemt Gas MESFET Si icmos Si CMOS InGaP HT SiGe HT Si JT GaN HEMT ifet HT DS12419 RF MICRO DEVICES, RFMD, Optimum Technology Matching, Enabling Wireless Connectivity, PowerStar, POLRIS TOTL RDIO and Ultimatelue are trademarks of RFMD, LLC. LUETOOTH is a trademark owned by luetooth SIG, Inc., U.S.. and licensed for use by RFMD. ll other trade names, trademarks and registered trademarks are the property of their respective owners. 212, RF Micro Devices, Inc Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 1 of 17

2 RFS313 bsolute Maximum Ratings Parameter Rating Unit Supply Voltage (V DD ) -.5 to +6 V Control Voltage(V C ) -.5 to +6 V Mode Pin Voltage (MODE) -.5 to +6 V RF Input Power +3 dm Operating Temperature (T CSE ) -4 to +85 C Storage Temperature -65 to +15 C Junction Temperature (T J ) +125 C ESD Rating Human ody Model (HM) 1 V Caution! ESD sensitive device. Exceeding any one or a combination of the bsolute Maximum Rating conditions may cause permanent damage to the device. Extended application of bsolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under bsolute 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 22/95/EC, halogen free per IEC , < 1ppm each of antimony trioxide in polymeric materials and red phosphorus as a flame retardant, and <2% antimony in solder. Parameter Specification Min. Typ. Max. Unit Condition General Supply Voltage V Supply Current 1 m Operating Temperature C Thermal Resistance 45 C/W RF input must be RFIN pin RF Input Power 27 dm RF input must be RFIN pin RF Performance Frequency Range 5 3 MHz Minimum Insertion Loss d Gain Control Range 3 35 d Gain versus Temperature 1.5 d Peak to peak gain variation over temperature for fixed control voltage Return Loss 1 d Relative Phase 11 Deg Insertion phase at 15d attenuation relative to minimum attenuation Input 1d Compression Point 3 dm Input IP dm P IN + (IM3 dc /2) Input IP2 8 dm P IN + IM2 dc, IM2 is F1+F2 Input IH2 8 dm P IN + H2 dc, H2 is second harmonic Input IH3 5 dm P IN + (H3 dc /2), H3 is third harmonic Composite Performance V DD = 5V, V C = 3.5V, T = + CSO -65 dc 55.25MHz to MHz, 112 Channel, +39dmV input Flat Tilt CT -7 dc 55.25MHz to MHz, 112 Channel, +39dmV input Flat Tilt XMOD -6 dc 55.25MHz to MHz, 112 Channel, +39dmV input Flat Tilt Control Voltage Control Range, Positive ttenuation Slope V 4.5V control voltage is lowest insertion loss, MODE pin high Voltage Control Range, Negative ttenuation Slope 3.3 V V control voltage is lowest insertion loss, MODE pin low Note: Typical performance at nominal conditions unless otherwise noted: Supply voltage = 5.V, Operating temperature =, RF Frequency 2 of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

3 RFS313 Control con t Parameter Specification Min. Typ. Max. Unit Condition Voltage Control Pin Current (MODE high) 37 VC Pin at 5V Voltage Control Pin Current (MODE low) 24 VC Pin at 3.3V MODE Pin Logic Low.4 V MODE Pin Logic High 1 V Settling Time 15 sec 1d attenuation change settling within.1d Note: Typical performance at nominal conditions unless otherwise noted: Supply voltage = 5.V, Operating temperature =, RF Frequency DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 3 of 17

4 RFS313 Measured Positive ttenuation Slope Performance Note: Data includes PC and connector losses Insertion Loss versus Voltage Control RFS313, RF, V =5V DD Insertion Loss versus Frequency RFS313, V DD =5V, Temp= Insertion Loss (d) C Insertion Loss (d) VC=V VC=.5V VC=1.V VC=1.5V -45 VC=2.V VC=2.5V VC=3.V VC=3.5V VC=4.V VC=4.5V VC=5.V Frequency (GHz) Input Return Loss versus Frequency RFS313, V DD =5V, Temp=+ VC=V VC=.5V VC=1.V VC=1.5V VC=2.V VC=2.5V VC=3.V VC=3.5V VC=4.V VC=4.5V VC=5.V Output Return Loss versus Frequency RFS313, V DD =5V, Temp=+ VC=V VC=.5V VC=1.V VC=1.5V VC=2.V VC=2.5V VC=3.V VC=3.5V VC=4.V VC=4.5V VC=5.V Input Return Loss (d) -1-2 Output Return Loss (d) Frequency (GHz) Frequency (GHz) Input Return Loss versus Voltage Control RFS313, RF, V DD =5V Output Return Loss versus Voltage Control RFS313, RF, V DD =5V Input Return Loss (d) C Output Return Loss (d) C of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

5 RFS313 Measured Positive ttenuation Slope Performance Note: Data includes PC and connector losses 7 Input IP3 versus ttenuation RFS313, RF, V DD =5V, Pin=+15dm/Tone 7 Input IP3 versus Voltage Control RFS313, RF, V DD =5V, Pin=+15dm/Tone Input IP3 (dm) C Input IP3 (dm) C ttenuation (d) Input IP3 versus ttenuation RFS313, V DD =5V, Pin=+15dm/Tone, Temp=+ 7 Input IP3 versus Voltage Control RFS313, V DD =5V, Pin=+15dm/Tone, Temp= Input IP3 (dm) 4 3 Input IP3 (dm) MHz 5MHz 1 2MHz 5MHz ttenuation (d) Voltage Control (d) 11 Input IP2 versus ttenuation RFS313, RF, V DD =5V, Pin=+15dm/Tone 11 Input IP2 versus Voltage Control RFS313, RF, V DD =5V, Pin=+15dm/Tone Input IP2 (dm) Input IP2 (dm) C C ttenuation (d) DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 5 of 17

6 RFS313 Measured Positive ttenuation Slope Performance Note: Data includes PC and connector losses Input IP2 versus ttenuation RFS313, V DD =5V, Pin=+15dm/Tone, Temp=+ Input IP2 versus Voltage Control RFS313, V DD =5V, Pin=+15dm/Tone, Temp= Input IP2 (dm) Input IP2 (dm) MHz 5MHz 2 1 2MHz 5MHz ttenuation (d) rd Harmonic IH3 versus ttenuation RFS313, RF, V DD =5V, Pin=+15dm 3 rd Harmonic IH3 versus Voltage Control RFS313, RF, V DD =5V, Pin=+15dm IH3 (dm) 4 3 IH3 (dm) C 1-4 C ttenuation (d) nd Harmonic IH2 versus ttenuation RFS313, RF, V DD =5V, Pin=+15dm 2nd Harmonic IH2 versus Voltage Control RFS313, RF, V DD =5V, Pin=+15dm IH2 (dm) IH2 (dm) C C ttenuation (d) of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

7 RFS313 Measured Positive ttenuation Slope Performance Note: Data includes PC and connector losses Relative Insertion Phase versus Voltage Control RFS313, V DD =5V, Temp= Relative Insertion Phase versus Insertion Loss VC 5V Mode, V DD =5V, Temp= Relative Insertion Phase (deg) MHz 5MHz 1MHz Relative Insertion Phase (deg) MHz 5MHz 1MHz Insertion Loss (d) 3. Insertion Loss Relative to + RFS313, RF, V DD =5V 3 Settling Time versus Insertion Loss 1d Steps, RF, V DD =5V C 1.5 S21 Delta (d) Settling Time (usec) C Insertion Loss (d) -3-4 DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 7 of 17

8 RFS313 Measured Negative ttenuation Slope Performance Note: Data includes PC and connector losses Insertion Loss versus Voltage Control RFS313, RF, V DD =5V Insertion Loss versus Frequency RFS313, V DD =5V, Temp= C -1 Insertion Loss (d) Insertion Loss (d) VC=V VC=.5V VC=1.V VC=1.5V VC=2.V VC=2.5V VC=3.V VC=3.5V VC=4.V Frequency (GHz) Input Return Loss versus Frequency RFS313, V DD =5V, Temp=+ Output Return Loss versus Frequency RFS313, V DD =5V, Temp=+ VC=V VC=.5V VC=1.V VC=1.5V VC=2.V VC=2.5V VC=3.V VC=3.5V VC=4.V Input Return Loss (d) -1-2 Output Return Loss (d) Frequency (GHz) VC=V VC=.5V VC=1.V -3 VC=1.5V VC=2.V VC=2.5V VC=3.V VC=3.5V VC=4.V Frequency (GHz) Input Return Loss versus Voltage Control RFS313, RF, V DD =5V Output Return Loss versus Voltage Control RFS313, RF, V DD =5V Input Return Loss (d) -1-2 Output Return Loss (d) C -3-4 C of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

9 RFS313 Measured Negative ttenuation Slope Performance Note: Data includes PC and connector losses 7 Input IP3 versus ttenuation RFS313, RF, V DD =5V, Pin=15dm/Tone 7 Input IP3 versus Voltage Control RFS313, RF, V DD =5V, Pin=15dm/Tone Input IP3 (dm) 4 3 Input IP3 (dm) C 1-4 C ttenuation (d) Input IP3 versus ttenuation RFS313, V DD =5V, Pin=+15dm/Tone, Temp=+ Input IP3 versus Voltage Control RFS313, V DD =5V, Pin=+15dm/Tone, Temp= Input IP3 (dm) 4 3 Input IP3 (dm) MHz 2MHz 1 5MHz 1 5MHz ttenuation (d) Voltage Control (d) Input IP2 versus ttenuation RFS313, RF, V DD =5V, Pin=15dm/Tone Input IP2 versus Voltage Control RFS313, RF, V DD =5V, Pin=15dm/Tone Input IP2 (dm) Input IP2 (dm) C 1-4 C ttenuation (d) DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 9 of 17

10 RFS313 Measured Negative ttenuation Slope Performance Note: Data includes PC and connector losses Input IP2 versus ttenuation RFS313, V DD =5V, Pin=+15dm/Tone, Temp=+ Input IP2 versus Voltage Control RFS313, V DD =5V, Pin=+15dm/Tone, Temp= Input IP2 (dm) Input IP2 (dm) MHz 5MHz 2 2MHz 5MHz ttenuation (d) rd Harmonic IH3 versus ttenuation RFS313, RF, V DD =5V, Pin=15dm 3 rd Harmonic IH3 versus Voltage Control RFS313, RF, V DD =5V, Pin=+15dm IH3 (dm) 4 3 IH3 (dm) C 1-4 C ttenuation (d) nd Harmonic IH2 versus ttenuation VC 5V Mode, V DD =5V, F= Extrapolated from Pin=+15dm 2 nd Harmonic IH2 versus Voltage Control VC 5V Mode, V DD =5V, F= Extrapolated from Pin=+15dm IH2 (dm) IH2 (dm) C 2-4 C ttenuation (d) of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

11 RFS313 Measured Negative ttenuation Slope Performance Note: Data includes PC and connector losses Relative Insertion Phase versus Voltage Control RFS313, V DD =5V, Temp= Relative Insertion Phase versus Insertion Loss RFS313, V DD =5V, Temp= Relative Insertion Phase (deg) MHz 5MHz 1MHz Relative Insertion Phase (deg) MHz 5MHz 1MHz Insertion Loss (d) 3. Insertion Loss Relative to + RFS313, RF, V DD =5V S21 Delta (d) C DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 11 of 17

12 RFS313 Measured Composite Performance: 79 Channel Loading XMOD versus Frequency, 79 Channel 39dmV Flat Input, Temp=+ CT versus Frequency, 79 Channel 39dmV Flat Input, Temp=+ 5 5 Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v Vc 4.2v Vc 4.v -6-6 Vc 3.8v Vc 3.6v Vc 3.2v Vc 3.4v Vc 3.v XMOD (dc) CT (dc) Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v -95 Vc 4.2v Vc 4.v Vc 3.8v Vc 3.6v Vc 3.4v Vc 3.2v Vc 3.v Frequency (MHz) Frequency (MHz) 5-6 CSO Difference versus Frequency, 79 Channel 39dmV Flat Input, Temp=+ Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v Vc 4.2v Vc 4.v Vc 3.8v Vc 3.6v Vc 3.4v Vc 3.2v Vc 3.v 5-6 CSO Sum versus Frequency, 79 Channel 39dmV Flat Input, Temp=+ CSO Difference (dc) CSO Sum (dc) Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v Vc 4.2v Vc 4.v Vc 3.8v Vc 3.6v Vc 3.4v Vc 3.2v Vc 3.v Frequency (MHz) Frequency (MHz) 12 of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

13 RFS313 Measured Composite Performance: 112 Channel Loading XMOD versus Frequency, 112 Channel 39dmV Flat Input, Temp=+ CT versus Frequency, 112 Channel 39dmV Flat Input, Temp= XMOD (dc) CT (dc) Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v Vc 4.2v Vc 4.v Vc 3.8v Vc 3.6v Vc 3.4v Vc 3.2v Vc 3.v Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v Vc 4.2v Vc 4.v Vc 3.8v Vc 3.6v Vc 3.4v Vc 3.2v Vc 3.v Frequency (MHz) Frequency (MHz) 5-6 CSO Difference versus Frequency, 112 Channel 39dmV Flat Input, Temp=+ Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v Vc 4.2v Vc 4.v Vc 3.8v Vc 3.6v Vc 3.4v Vc 3.2v Vc 3.v 5-6 CSO Sum versus Frequency, 112 Channel 39dmV Flat Input, Temp=+ CSO Difference (dc) Frequency (MHz) CSO Sum (dc) Vc 5v Vc 4.8v Vc 4.6v Vc 4.4v Vc 4.2v Vc 4.v Vc 3.8v Vc 3.6v Vc 3.4v Vc 3.2v Vc 3.v Frequency (MHz) DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 13 of 17

14 RFS313 Pin Names and Descriptions Pin Name Description 1 GND Ground Pin 2 NC No Connection. Do Not Connect to PC oard Ground Plane. 3 RFIN RF Input. Use External DC lock. RF input must be this pin to insure linearity and thermal resistance specifications. 4 NC No Connection. Do Not Connect to PC oard Ground Plane. 5 GND Ground Pin 6 GND Ground Pin 7 GND Ground Pin 8 GND Ground Pin 9 NC No Connection. Do Not Connect to PC oard Ground Plane. 1 RFOUT RF Output. Use External DC lock. RF output must be this pin to insure linearity and thermal resistance specifications. 11 NC No Connection. Do Not Connect to PC oard Ground Plane. 12 GND Ground Pin 13 GND Ground Pin 14 VC ttenuator Control Voltage 15 VDD Supply Voltage (5V) 16 MODE ttenuation Slope Control Set to Logic Low to Enable Negative ttenuation Slope. Set to Logic High to Enable Positive ttenuation Slope. GND GND Exposed Package Ground Paddle is RF and DC Ground PC Patterns =.26 x.528 (mm) Typ =.528 x.26 (mm) Typ C = 1.7 x 1.7 (mm) 15% Rounded Rectangle =.38 x.648 (mm) Typ =.648 x.38 (mm) Typ C = 1.82 x 1.82 (mm) 15% Rounded Rectangle =.234 x.475 (mm) Typ =.475 x.234 (mm) Typ C = 1.53 x 1.53 (mm) 15% Rounded Rectangle 16x.25 C 2x.75 2x.25. 2x.25 12x.12 16x.13 C 2x.75 2x.25. 2x.25 12x x.361 C 2x.75 2x.25. 2x.25 2x.75 2x.75 2x.75 2x.75 2x.25. 2x.25 PC METL PTTERN 2x.75 2x.75 2x.25. 2x.25 2x.75 PC SOLDER MSK PTTERN 2x.75 2x.25. 2x.25 2x.75 PC STENCIL PTTERN Thermal vias for center slug C should be incorporated into the PC design. The number and size of thermal vias will depend on the application, the power dissipation, and the electrical requirements. Example of the number and size of vias can be found on the RFMD evaluation board layout. 14 of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

15 RFS313 Evaluation oard Schematic MODE VDD VC C4 1µF C9 1pF R RFIN C1 1pF RFS C2 1pF RFOUT DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 15 of 17

16 RFS313 Evaluation oard ssembly Drawing RFIN RFUT Evaluation oard ill of Materials (OM) Description Reference Designator Manufacturer Manufacturer s P/N Voltage Controlled ttenuator VC, 5V U1 RFMD RFS313 CONN, F, EDGE MOUNT, 3 MIL J1-J2 Trompeter Electronics, Inc. CJE13-2 CONN, HDR, ST, 4-PIN,.1, T/H P1 MOLEX PC, S DDI S313-41() CP, 1pF, 1%, 25V, X7R, 42 C1-C2, C9 Murata Electronics GRM155R71H12K1D CP, 1 F, 1%, 16V, X7R, 126 C4 Murata Electronics GRM31MR71E15KC1L RES, 1, 5%, 1/16W, 42 R5 Kamaya, Inc RMC1/16S-11JTH DNP C3, C5-C8 N/ N/ DNP R3 N/ N/ DNP P2 N/ N/ 16 of Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. DS12419

17 RFS313 Package Drawing.9mm x 3mm x 3mm 3.±.1.4±.5 1.7±.1.5 SC 3.±.1 1.7± / ±.5.23 Ref randing Diagram.9mm x 3mm x 3mm Pin 1 Indicator Trace Code to be assigned by SubCon DS Thorndike Road, Greensboro, NC For sales or technical support, contact RFMD at (+1) or customerservice@rfmd.com. 17 of 17

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GND RFIN. Product Description. Ordering Information. GaAs MESFET Si BiCMOS Si CMOS

GND RFIN. Product Description. Ordering Information. GaAs MESFET Si BiCMOS Si CMOS RFS213 Voltage Controlled ttenuator RFS213 VOLTGE CONTROLLED TTENUTOR Package Style: QFN, 16-Pin,.9mm x 3mm x 3mm MODE VDD VC GND Features Patent Pending Circuit rchitecture roadband 5MHz to 4MHz Frequency