RFDA0035 RFDA0035Digital Controlled IF Dual VGA DIGITAL CONTROLLED IF DUAL VGA 5 BIT 1dB LSB CONTROL A0 IPA+ IPA- GNDA VCCA OPA+ OPA24 OPA+ 5-Bit Step Attenuator A4 3 23 OPA- AMP 22 ENBA VCMB 5 20 RESB B4 6 5-Bit Step Attenuator B3 7 Single +5V Supply 18 OPB- 13 GNDB 14 15 16 OPB- 12 OPB+ 11 VCCB 10 IPB- 9 IPB+ 17 OPB+ High OIP3/P1dB=+42/21dBm @180MHz 19 ENBB AMP B2 8 Noise Figure: 7.5dB@Maximum Gain Relative Phase Shift<1 ° 25 Gain Control Range=31dB (1dB Step Size) 26 21 RESA Max Gain=19.0dB@180MHz 27 VCMA 4 28 Bandwidth of 500MHz (-3dB) Differential Input and Output 29 A3 2 Dual Independent Digitally Controlled VGAs 30 B0 31 B1 32 A2 1 Features A1 Package: QFN 32-Pin, 5.0mmx5.0mm Functional Block Diagram Dual 5-Bit Parallel Control Interface Individual Enable Control for Each VGA Product Description RFMD's RFDA0035 is a dual-channel, digitally controlled variable gain amplifier featuring high linearity over the entire 32 gain control steps. It features independent channel power-up enable, independent channel current adjustability for optimizing DC versus IP3 and a 200 differential input and output impedance. Current Adjustable for IP3 Trade Offs Small 32-Pin, 5.0mmx5.0mm, QFN Applications Differential ADC Drivers Main and Diversity IF Sampling Receivers Wideband Multichannel Receivers Instrumentation Ordering Information RFDA0035SR RFDA0035SQ RFDA0035TR7 RFDA0035TR13 RFDA0035PCK-410 7” Sample reel with 100 pieces 25 piece Sample bag 7” Reel with 750 pieces 13” Reel with 2500 pieces 50MHz to 500MHz 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. DS110329 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 RFDA0035 Absolute Maximum Ratings Parameter Rating Unit +6.0 VDC Supply Voltage DC Supply Current 300 mA Power Dissipation 1600 mW 27 dBm Operating Temperature (TCASE) -40 to +85 °C Storage Temperature -40 to +150 °C Junction Temperature 125 °C ESD Rating (HBM) 500 V Max RF Input Power 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. 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. 2 Min. Specification Typ. Unit Max. T=25 °C, VCC =VDD =5V, Standard Application Circuit Overall Frequency Range Condition 50 500 Max Gain MHz -3dB Bandwidth 19.3 dB 31 dB +/- (0.1+1.5% attenuation setting) dB Major State Error up to 400MHz Output P1dB 21 dBm At 180MHz, Upper 24dB Steps Output IP3 42 dBm At 180MHz, POUT =5dBm/Tone, 1MHz Spacing 5 bit Parallel Interface ° 50MHz~300MHz GainControlRange Step Accuracy Control Interface Relative Phase Shift 1 Settling Time Attenuation=0dB, 180MHz 15 ns tON, tOFF (10%/90% RF) Noise Figure 7.5 dB Attenuation=0dB Impedance 200 Differential Input Return Loss Output Return Loss Total Supply Voltage 4.75 Supply Current 5.0 dB -15 dB 5.25 V 240 mA Typical RF Performance at Key Operating Frequencies Parameter Unit 100MHz Max Small Signal Gain -12 Both Channels Are Enabled. Can be Adjusted by External Resistors from RESA/B to Ground. 180MHz 300MHz 19.0 dB 19.3 19.3 Output P1dB dBm 21 21 21 Output IP3 [1] dBm 43 42 40 dB -15 -13 -15 Output Return Loss dB -17 -20 -17 Noise Figure dB 7.0 7.2 7.5 Input Return Loss Note: [1] OIP3 is tested at POUT =5dBm/Tone and 1MHz spacing. 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]. DS110329 RFDA0035 Major Attenuation States Bit Error (dB) versus Frequency Gain (dB) versus Attenuation at Different Frequencies 1.0 20 0.8 15 300 MHz 400 MHz 500 MHz 0.6 5 1dB 2dB 4dB 8dB 16dB 31dB 0.4 Bitt Error (dB) Gain (dB) 10 180 MHz 0.2 0.0 0 -0.2 -0.4 -5 -0.6 -10 -0.8 -15 -1.0 0 5 10 15 20 25 30 0 100 200 Attenuation State (dB) All States' Gain (dB) versus Frequency 400 500 Bit Error (dB) versus Attenuation State 25 1.0 20 0.8 15 0.6 60MHz 100MHz 180MHz 300MHz 0.4 Bit Error (dB) 10 Gain (dB) 300 Frequency (MHz) 5 0 0.2 0.0 -0.2 -5 -0.4 -10 -0.6 -15 -0.8 -1.0 -20 0 100 200 300 400 0 500 4 8 12 16 20 24 28 32 Attenuation State (dB) Frequency (MHz) Worst Case Step Error (dB) Between Successive Attenuation States Max Gain (dB) versus Frequency, Three Temperatures 1 21 0.8 0.6 20 0.4 Gain (dB) Step Error (dB) 19 18 -40C 25C 0.2 0 -0.2 85C -0.4 17 -0.6 -0.8 16 0 100 200 300 Frequency (MHz) 400 500 -1 0 100 200 300 400 500 Frequency (MHz) DS110329 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 RFDA0035 Relative Phase ° Related to Max Gain Step Max Gain Output IP3 (dBm) versus POUT, Frequency 180MHz 3.0 50 50MHz 100MHz 180MHz 300MHz 48 2.0 46 44 Output IP3 (dBm) Phase ° 1.0 0.0 -1.0 42 40 38 36 34 -2.0 32 30 -3.0 -3 0 4 8 12 16 20 24 28 -1 1 3 5 32 Output Power (dBm) Attenuation State (dB) Input Return Loss (dB) versus Frequency 25dB Attenuation State Output IP3 (dBm) versus POUT, Frequency 180MHz 0 50 0dB 1dB 2dB 4dB 8dB 16dB 31dB 48 -5 46 44 Output IP3 (dBm) Return Loss (dB) -10 -15 -20 42 40 38 36 -25 34 -30 32 30 -35 0 100 200 300 400 -3 500 -1 1 3 5 Output Power (dBm) Frequency (MHz) Output IP3 (dBm) versus Frequency, POUT 5dBm/Tone Output Return Loss (dB) versus Frequency 0 50 0dB 1dB 2dB 8dB 16dB 31dB 4dB 48 -5 46 44 Output IP3 (dBm) Return Loss (dB) -10 -15 -20 42 40 38 36 -25 34 -30 1dB 2dB 8dB 16dB 31dB 4dB 32 30 -35 0 100 200 300 Frequency (MHz) 4 of 11 0dB 400 500 50 100 150 200 250 300 Frequency (MHz) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS110329 RFDA0035 3rd Harmonic (dBc) versus Attenuation at 180MHz, POUT 5dBm -50 53 -55 51 -60 49 -65 3rd Harmonic (dBc) Output IP3 (dBm) Max Gain Output IP3 (dBm) versus Frequency, POUT 5dBm/Tone 55 47 45 43 -70 -75 -80 41 -85 39 -90 37 -95 35 -100 50 100 150 200 250 300 0 5 10 15 Frequency (MHz) Output IP3 (dBm) versus Attenuation at 180MHz, POUT 5dBm/Tone 25 30 2nd Harmonic (dBc) versus POUT at 180MHz 50 -50 48 -55 46 -60 44 -65 2nd Harmonic (dBc) Output IP3 (dBm) 20 Attenuation State (dBm) 42 40 38 36 34 -70 -75 -80 -85 0dB 1dB 2dB -90 8dB 16dB 31dB 4dB -95 32 -100 30 0 5 10 15 20 25 -5 30 -3 -1 1 3 5 3 5 Output Power (dBm) Attenuation State (dB) 3rd Harmonic (dBc) versus POUT at 180MHz -50 -55 -55 -60 -60 -65 -65 3rd Harmonic (dBc) 2nd Harmonic (dBc) 2nd Harmonic (dBc) versus Attenuation at 180MHz, POUT 5dBm -50 -70 -75 -80 -85 0dB 1dB 2dB 8dB 16dB 31dB 4dB -70 -75 -80 -85 -90 -90 -95 -95 -100 -100 0 5 10 15 Attenuation State (dBm) DS110329 20 25 30 -5 -3 -1 1 Output Power (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 RFDA0035 Max Gain Noise Figure (dB) versus Frequency 180MHz Output P1dB (dBm) versus Attenuation States 12 30 11 28 10 26 9 Noise Figure (dB) Output P1dB (dBm) 24 22 20 18 16 8 7 6 5 14 4 12 3 10 0 5 10 15 20 25 2 30 50 Attenuation State (dB) 100 150 200 250 300 350 400 450 500 Frequency (MHz) Max Gain Output P1dB (dBm) versus Frequency Max Gain Channel Isolation (dB) (Output to Output) versus Frequency 30 -40 28 -50 26 Channel Isolation (dB) Output P1dB (dBm) 24 22 20 18 -40 16 25 85 14 -60 -70 -80 -90 12 -100 10 0 50 100 150 200 250 300 350 400 450 500 50 100 150 200 250 300 350 400 450 500 Frequency (MHz) Frequency (MHz) 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]. DS110329 RFDA0035 Truth Table A4/B4 A3/B3 Control Bits A2/B2 A1/B1 A0/B0 Gain Relative to Maximum Gain 0 0 0 0 0 0dB 0 0 0 0 1 -1dB 0 0 0 1 0 -2dB 0 0 0 1 1 -3dB 0 0 1 0 0 -4dB 0 0 1 0 1 -5dB 0 0 1 1 0 -6dB 0 0 1 1 1 -7dB 0 1 0 0 0 -8dB 0 1 0 0 1 -9dB 0 1 0 1 0 -10dB 0 1 0 1 1 -11dB 0 1 1 0 0 -12dB 0 1 1 0 1 -13dB 0 1 1 1 0 -14dB 0 1 1 1 1 -15dB 1 0 0 0 0 -16dB 1 0 0 0 1 -17dB 1 0 0 1 0 -18dB 1 0 0 1 1 -19dB 1 0 1 0 0 -20dB 1 0 1 0 1 -21dB 1 0 1 1 0 -22dB 1 0 1 1 1 -23dB 1 1 0 0 0 -24dB 1 1 0 0 1 -25dB 1 1 0 1 0 -26dB 1 1 0 1 1 -27dB 1 1 1 0 0 -28dB 1 1 1 0 1 -29dB 1 1 1 1 0 -30dB 1 1 1 1 1 -31dB Logic Voltage Levels State Logic Low 0.0V to 1.0V High 1.8V to 5.0V DS110329 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 RFDA0035 Pin Names and Descriptions Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Function A2 A3 A4 VCMA VCMB B4 B3 B2 B1 B0 IPB+ IPBGNDB VCCB 0PB+ 0PB0PB+ 0PBENBB RESB 21 RESA 22 23 24 25 26 27 28 29 30 31 32 ENBA OPAOPA+ OPAOPA+ VCCA GNDA IPAIPA+ A0 A1 8 of 11 Description MSB - 2 for the Gain Control Interface for Channel A. MSB - 1 for the Gain Control Interface for Channel A. MSB for the 5-Bit Gain Control Interface for Channel A. Channel A Input Common-Mode Voltage. Typically Bypassed to Ground Through Capacitor. Channel B Input Common-Mode Voltage. Typically Bypassed to Ground Through Capacitor. MSB for the 5-Bit Gain Control Interface for Channel B. MSB - 1 for the Gain Control Interface for Channel B. MSB - 2 for the Gain Control Interface for Channel B. LSB + 1 for the Gain Control Interface for Channel B. LSB for the Gain Control Interface for Channel B. Channel B Positive Input. Channel B Negative Input. Device Common (DC Ground) for Channel B. Positive Supply Pin for Channel B. Should be Bypassed to Ground Using Suitable Bypass Capacitor. Positive Output Pins (Open Collector) for Channel B. Require DC Bias of +5V Nominal. Negative Output Pins (Open Collector) for Channel B. Require DC Bias of +5V Nominal. Positive Output Pins (Open Collector) for Channel B. Require DC Bias of +5V Nominal. Negative Output Pins (Open Collector) for Channel B. Require DC Bias of +5V Nominal. Power Enable Pin for Channel B. Channel B is Enabled with a Logic High and Disabled with a Logic Low. Current Adjust Pin. Connect a Resistor from RESB to Ground can Adjust the Channel B DC Current from 90mA to 120mA. Leave Pin Floating for Nominal Bias of 120mA. Current Adjust Pin. Connect a Resistor from RESA to Ground can Adjust the Channel A DC Current from 90mA to 120mA. Leave Pin Floating for Nominal Bias of 120mA. Power Enable Pin for Channel A. Channel A is Enabled with a Logic High and Disabled with a Logic Low. Negative Output Pins (Open Collector) for Channel A. Require DC Bias of +5V Nominal. Positive Output Pins (Open Collector) for Channel A. Require DC Bias of +5V Nominal. Negative Output Pins (Open Collector) for Channel A. Require DC Bias of +5V Nominal. Positive Output Pins (Open Collector) for Channel A. Require DC Bias of +5V Nominal. Positive Supply Pins for Channel A. Should be Bypassed to Ground Using Suitable Bypass Capacitor. Device Common (DC Ground) for Channel A Channel A Negative Input. Channel A Positive Input. LSB for the Gain Control Interface for Channel A. LSB + 1 for the Gain Control Interface for Channel A. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DS110329 RFDA0035 Package Drawing 5.0mmx5.0mm, 32 lead, QFN 5.000±0.100 3.100±0.10 0.400±.10 0.500 BSC 5.000±0.100 3.100±0.10 0.230±.050 TOP VIEW 3.500 Ref BOTTOM VIEW 0.850±.050 SIDE VIEW DS110329 0.203 Ref 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 RFDA0035 Evaluation Board Assembly Drawing 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]. DS110329 RFDA0035 Application Schematic RFIN_A Minicircuit TC4-6T+ 1:4 Balun 4 places Only required for single ended 50 ohm tests 5V 0.1uF 0.1uF 5V 1pF 1uH RFOUT_A 27nH X2 0.1uF X2 0.1uF X2 A0 thru A4 Channel A Parallel Interface 33nH X2 OPA- OPA+ VCCA GNDA IPA- IPA+ A0 A1 1uH 0.1uF A2 OPA+ A3 OPA- 5V 0.1uF A4 Enable A ENBA 0.1uF Rbias RFDA0035 VCMA Default Rbias 1Meg ohm For 120mA nominal current per channel RESA VCMB RESB Rbias 0.1uF B4 ENBB B3 OPB- B2 OPB+ Enable B OPB- OPB+ VCCB GNDB IPB- IPB+ B0 B1 0.1uF 5V 0.1uF 1uH A0 thru A4 Channel B Parallel Interface 0.1uF X2 0.1uF X2 27nH X2 33nH X2 RFOUT_B 1uH Minicircuit TC4-6T+ 1:4 Balun 4 places Only required for single ended 50 ohm tests 1pF 0.1uF 5V 0.1uF 5V RFIN_B DS110329 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