RFSA4033 RFSA4033 RFSA4033 Programmable Temperature Compensating Attenuator 5MHz to 6000MHz GND 1 GND 2 RFIN 3 GND 4 ATTN2 ATTN1 ATTN0 VDD The RFSA4033 is a fully monolithic linear-in-dB analog temperature compensating attenuator (TCA) featuring exceptional linearity over its entire gain control range. It is designed to offset the gain reduction of an RF component over temperature without the need for closed loop feedback. Eight customer selectable scaled attenuation slopes and eight selectable nominal attenuation values at 25°C creates a total combination of 64 possible temperature coefficients which make it a flexible solution for RF lineups. It incorporates revolutionary new circuit architecture to solve a long standing industry problem with regards to attenuator architecture: high IP3, low DC current and broad bandwidth. Traditional approaches for solving this problem require expensive co-fired ceramics with temperature sensitive materials or current hungry PIN diodes with elaborate area consuming control circuits. This temperature compensating attenuator requires only a single supply voltage and 6 logic bits to set the temperature coefficient. The RFSA4033 is packaged in a small 3mm x 3mm QFN. This attenuator is matched to 50Ω over its rated control range and frequency with no external matching components required. 16 15 14 13 CONTROL SYSTEM 6 7 8 SLP2 SLP1 SLP0 GND Features ■ Patent Pending Circuit Architecture ■ Broadband 5MHz to 6000MHz Frequency Range ■ 64 Selectable Attenuation versus Temperature Linear-in-dB Slopes ■ +52dBm Input IP3 Typical ■ +80dBm Input IP2 Typical ■ High 1dB Compression Point >+30dBm ■ Low Residual Phase Noise <-140dBc/Hz at 10kHz offset ■ 3V to 5V Power Supply ■ 3V Logic Compatible ■ Class 2 ESD (2000V HBM) Applications 12 GND 11 GND 10 RFOUT 9 GND ATTENUATOR 5 Package: QFN, 16-pin, 3.0mm x 3.0mm x 0.85mm Functional Block Diagram ■ Cellular, 3G, LTE Infrastructure ■ WiBro, LTE ■ Microwave Radio ■ High Linearity RF Power Control ■ Cable Modems ■ CATV ■ Test Equipment Ordering Information RFSA4033SQ Sample bag with 25 pieces RFSA4033SR 7" Reel with 100 pieces RFSA4033TR7 7" Reel with 2500 pieces RFSA4033PCK-410 5MHz to 6GHz PCBA with 5-piece sample bag RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. ® DS150225 ® RF MICRO DEVICES and RFMD 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. ©2013, RF Micro Devices, Inc. 1 of 17 RFSA4033 Absolute Maximum Ratings Parameter Rating Unit Supply Voltage (VDD) -0.5 to 6.0 V Logic Control Voltage -0.5 to VDD V 30 dBm -65 to +150 °C ESD Rating - Human Body Model (HBM) 2000 V Moisture Sensitivity Level MSL2 Maximum CW Input Power Storage Temperature Range Caution! ESD sensitive device. RFMD Green: RoHS status based on EU Directive 2011/65/EU (at time of this document revision), 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. 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. Recommended Operating Condition Parameter Specification Min Operating Temperature Range Typ -40 Operating Junction Temperature 3.0 Supply Voltage (VDD) Unit Max +105 °C +125 °C 5.5 V Nominal Operating Parameters Specification Parameter Unit Min Condition Typ Max Supply Current (IDD) 7 10 Attenuation Bits (ATTN) 3 8 Nominal insertion loss states at 25°C Slope Bits (SLP) 3 8 (Insertion loss versus temperature) slope states Supply and Interface Requirements Control Pins Logic Low Control Pins Logic High 0.8 2.0 Thermal Resistance mA V V 45 RF Input Power °C/W 27 dBm Typical Performance: VDD = 5V, Temp = 25°C, RF Frequency = 2000MHz General Performance Frequency Range 5 6000 MHz Nominal Attenuation 3 10 dB At +25°C, selectable in 1dB steps dB At +25°C Nominal Attenuation Accuracy (See Table Below) Temperature Coefficient See Table 3 10 mdB/°C Selectable in 1mdB/°C increments RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. ® DS150225 ® RF MICRO DEVICES and RFMD 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. ©2013, RF Micro Devices, Inc. 2 of 17 RFSA4033 Specification Parameter Unit Min Typ Condition Max General Performance Continued Typical Performance: VDD = 5V, Temp = 25°C, RF Frequency = 2000MHz Temperature Coefficient Accuracy ±1 mdB/°C Nominal Impedance 50 Ω Input Return Loss 18 dB Output Return Loss 18 dB Input P1dB 30 dBm Input IP2 80 dBm 52 dBm Input IH2 86 dBm 2F input intercept point, Pin + (POUT – F2) Input IH3 58 dBm 3F input intercept point, Pin + (POUT – F3) /2 Input IP3 45 Per dB of nominal attenuation F1 + F2 input intercept point, Pin + (POUT – IM2) Nominal Attenuation Accuracy Table Nominal Attenuation Accuracy Typical Unit 3 2.7 dB 4 3.6 dB 5 4.6 dB 6 5.7 dB 7 6.8 dB 8 7.9 dB 9 9.0 dB 10 10.1 dB RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 3 of 17 RFSA4033 Typical Application Schematic RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 4 of 17 RFSA4033 Typical Performance: T = 25°C, VDD = 5V unless otherwise noted RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 5 of 17 RFSA4033 Typical Performance: T = 25°C, VDD = 5V unless otherwise noted RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 6 of 17 RFSA4033 Typical Performance: T = 25°C, VDD = 5V unless otherwise noted RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 7 of 17 RFSA4033 Typical Performance: T = 25°C, VDD = 5V unless otherwise noted RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 8 of 17 RFSA4033 Typical Performance: T = 25°C, VDD = 5V unless otherwise noted RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 9 of 17 RFSA4033 Typical Performance: T = 25°C, VDD = 5V unless otherwise noted RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 10 of 17 RFSA4033 Typical Performance: T = 25°C, VDD = 5V unless otherwise noted RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 11 of 17 RFSA4033 Evaluation Board Schematic 5MHz to 6000MHz Application Circuit RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 12 of 17 RFSA4033 Evaluation Board Bill of Materials (BOM) 5MHz to 6000MHz Application Circuit Description Reference Designator RFSA4033-410 Manufacturer Manufacturer's P/N Dynamic Details (DDI) Toronto RFSA4033-410(A) DIGITAL STEP ATTENUATOR 50MHz to 6000MHz U1 RFMD RFSA4033SB CAP, 1µF, 10%, 25V, X7R, 1206 C9 Taiyo Yuden (USA), Inc. CE TMK316BJ105KL-T J1-J4 Molex SD-73251-4000 CONN, HDR, ST, 1x7, 0.100", T/H P1 Samtec Inc. TSW-107-07-G-S CONN, HDR, ST, PLRZD, 2-PIN, 0.100" P6 ITW Pancon MPSS100-2-C CONN, HDR, ST, 3X7, 0.100" P3 Samtec Inc. TSW-107-07-G-T CONN, SKT, 24-PIN DIP, 0.600", T/H P2 Aries Electronics Inc. 24-6518-10 MOD, USB TO SERIAL UART, SSOP-28 M1 Future Technology Devices Int'l UM232R C1-C8 NA NA CONN, SMA, END LNCH, UNIV, HYB MNT, FLT DNP RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 13 of 17 RFSA4033 Evaluation Board Assembly Drawing RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 14 of 17 RFSA4033 Pin Names and Descriptions Pin Name Description 1 GND Connect to PCB ground 2 GND Connect to PCB ground 3 RFIN Input RF port; Do not apply DC voltage to this pin. Pin may be grounded externally. 4 GND Connect to PCB ground 5 SLP2 Input logic bus to control the attenuation slope (MSB) 6 SLP1 Input logic bus to control the attenuation slope 7 SLP0 Input logic bus to control the attenuation slope (LSB) 8 GND Connect to PCB ground 9 GND Connect to PCB ground 10 RFOUT 11 GND Connect to PCB ground 12 GND Connect to PCB ground 13 VDD Supply Voltage 14 ATTN0 Input logic bus to control the 25°C nominal attenuation value (LSB) 15 ATTN1 Input logic bus to control the 25°C nominal attenuation value 16 ATTN2 Input logic bus to control the 25°C nominal attenuation value (MSB) Output RF Port; Do not apply DC voltage to this pin. Pin may be grounded externally. Nominal Attenuation Truth Table ATTN2 ATTN1 ATTN0 S21 ATTN Value at 25°C (dB) 0 0 0 3 0 0 1 4 0 1 0 5 0 1 1 6 1 0 0 7 1 0 1 8 1 1 0 9 1 1 1 10 Note: Refer to nominal attenuation accuracy table. RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 15 of 17 RFSA4033 Attenuation Slope Truth Table SLP2 SLP1 SLP0 S21 Temperature Coefficient (mdB/°C/Attn) 0 0 0 3 0 0 1 4 0 1 0 5 0 1 1 6 1 0 0 7 1 0 1 8 1 1 0 9 1 1 1 10 Package Outline (Dimensions in millimeters) RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 16 of 17 RFSA4033 Branding Diagram RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS150225 The information in this publication is believed to be accurate. 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. 17 of 17