Digital Controlled Variable Gain Amplifier DVGA1-242A+ 50Ω 0.45 to 2.4 GHz 31.5 dB, 0.5 dB Step, 6 Bit Serial Control The Big Deal • Integrated Amplifier and Digital Attenuator • 30 dB Gain / 31.5 dB Gain Control • High Output IP3, 35-37 dBm CASE STYLE: DG1677 Product Overview The DVGA1-242A+ is a 50Ω RF Digital Variable Gain Amplifier that offers an attenuation of 31.5 dB in 0.5 dB steps using a 6-bit serial interface attenuator and 30dB gain using a E-PHEMT amplifier. Step attenuator used in DVGA1-242A+ is produced using a unique combination of CMOS process on silicon, offering the performance of GaAs, with the advantages of conventional CMOS devices. Key Features Feature Advantages 31.5 dB attenuation in 0.5 dB step size Combining high gain and a wide range of gain control makes the DVGA1-242A+ an ideal building block for any RF chain where level setting control is required in a small space. High Gain, 30 dB Incorporating multiple stages of amplification, the DVGA1-242A+ provides high gain reducing cost and PCB board space High IP3, +35.1 dBm at 1.0 GHz Low Noise Figure, 2.2 dB at 1.0 GHz Combining Low Noise and High IP3 makes this MMIC amplifier ideal for Low Noise Receiver Front End (RFE) giving the user advantages at both ends of the dynamic range: sensitivity & two-tone IM dynamic range. Output Power, +22.7 dBm at 2.4 GHz The DVGA1-242A+ maintains consistent output power capability over the full operating temperature range making it ideal to be used in remote applications such as LNB’s as the L Band driver stage. MCLP Package Low Inductance, repeatable transitions, excellent thermal pad. Max Input Power, +24 dBm Ruggedized design operates up to input powers often seen at Receiver inputs. Attenuation Step size, 0.5 dB, accuracy 0.1 dB typ. Total attenuation, 31.5 dB Enables precise control of gain in 0.5 dB steps up to 31.5 dB. External Jumper Customer access is provided between the digital attenuator and the RF amplifier to allow the user to integrate external circuit elements if desired. Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 1 of 9 Digital Controlled Variable Gain Amplifier 50Ω 450-2400 MHz 30 dB Gain, 0.5 dB Step, 31.5 dB Attenuation, 6 Bit Serial Control Product Features • 31.5 dB Gain control 0.5dB step size • Gain, 30 dB nominal at 0dB attenuation and 1 GHz • Excellent accuracy, 0.1 dB typ • Serial control interface • Small size 5.0 x 5.0 mm DVGA1-242A+ CASE STYLE: DG1677 +RoHS Compliant The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications Typical Applications • Base Station Infrastructure • GPS • LTE • WCDMA General Description The DVGA1-242A+ is a 50Ω RF Digital Variable Gain Amplifier that offers an attenuation of 31.5 dB in 0.5 dB steps using a 6-bit serial interface attenuator and 30dB gain using a E-PHEMT amplifier. Step attenuator used in DVGA1242A+ is produced using a unique combination of CMOS process on silicon, offering the performance of GaAs, with the advantages of conventional CMOS devices. Simplified Schematic (Refer to Table 1 for Pad description) Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] REV. OR M149362 DVGA1-242A+ RS/CP 160426 Page 2 of 9 Digital Controlled Variable Gain Amplifier (DVGA) DVGA1-242A+ RF Electrical Specifications(1) at 25°C, 50Ω With VD1=+3.0V, VD2=+5V Parameter Condition (GHz) Frequency Range Gain (at 0 dB attenuation) Input Return Loss (all states) Output Return Loss (all states) Output Power @ 1 dB compression (at min and max attenuation) Output IP3 (all states) Noise Figure (at 0 dB attenuation) Accuracy @ 0.5 dB Attenuation Setting Accuracy @ 1 dB Attenuation Setting Accuracy @ 2 dB Attenuation Setting Accuracy @ 4 dB Attenuation Setting Accuracy @ 8 dB Attenuation Setting Accuracy @ 16 dB Attenuation Setting Min. Typ. 0.45 .45 1.0 1.4 2.0 2.4 .45 1.0 1.4 2.0 2.4 .45 1.0 1.4 2.0 2.4 .45 1.0 1.4 2.0 2.4 .45 1.0 1.4 2.0 2.4 .45 1.0 1.4 2.0 2.4 .45 - 1.0 1.0 - 2.4 .45 - 1.0 1.0 - 2.4 .45 - 1.0 1.0 - 2.4 .45 - 1.0 1.0 - 2.4 .45 - 1.0 1.0 - 2.4 .45 - 1.0 1.0 - 2.4 — — 26.5 — — — — — — — — — — — — — — 20.0 — — — — — — — — — — — — — — — — — — — — — — — — 29.6 30.5 29.3 24.3 21.0 17.3 20.2 7.6 7.7 11.4 21.0 13.4 12.1 9.8 9.9 22.1 22.4 22.9 22.9 22.7 35.7 35.1 35.9 37.6 37.4 2.2 2.2 2.4 2.6 2.9 0.03 0.1 0.05 0.15 0.06 0.24 0.09 0.31 0.2 0.49 0.2 0.73 Max. Units 2.4 GHz — — 32.4 — — — — — — — — — — — — — — — — — — — — — — — — 3.7 — — 0.12 0.18 0.13 0.2 0.25 0.37 0.37 0.45 0.4 0.7 0.6 1.2 dB dB dB dBm dBm dB dB dB dB dB dB dB 1. Measured in Mini-Circuits characterization test board TB-643A+. See characterization Test Circuit (Fig. 2) Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 3 of 9 DVGA1-242A+ Digital Controlled Variable Gain Amplifier (DVGA) Attenuation Switching Specifications Parameter Min. Typ. Max. Units Switching Speed, 50% Control to 0.5dB of Attenuation Value — 1.0 — mSec Switching Rep Rate — — 25 KHz Figure 1. Switching Speed Serial Control State Change 1 50% 0 t Switching Speed RF Output Signal 0.5 dB of Final Value Gain B Gain A 0 t DC Electrical Specifications Min. Typ. Max. Units Supply Voltage, Vd1 Parameter 2.7 3.0 3.3 V Vd2 4.75 5.0 5.25 V — — 200 µA Supply Current, Id1 — 154 186 mA Control Input Low Id2 -0.3 — 0.6 V Control Input High 1.17 — 3.6 V — — 1 mA Control Current* * Except 30 µA typ. for C 0.5, C16 and 2 µA typ. for LE. Absolute Maximum Ratings Parameter Ratings Operating Temperature Storage Temperature Vd1 -65°C to 150°C -0.3V Min., 5.5V Max. Vd2 6.0V Voltage on any control input** Input Power -40°C to 85°C -0.3V Min., Vd1+0.3V Max. +24dBm ** Permanent damage may occur if any of these limits are exceeded. Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 4 of 9 DVGA1-242A+ Digital Controlled Variable Gain Amplifier (DVGA) Table 1. Pad Description Serial Interface Clock Input 7 LE Latch Enable Input (Note 2) 8 VD1 VD1 Power Supply Input 9 N/C Not Connected 10 N/C Not Connected 11 VD1 VD1 Power Supply Input 12 GND Ground 13 VD1 VD1 Power Supply Input 14 N/C Not Connected N/C 1 24 N/C 15 N/C Not Connected RFin 2 23 RF jump out 16 N/C Not Connected 17 RF OUT &VD2 22 23 RF JUMP OUT Interstage RF Jumper Output (Note 1) 24 N/C Not Connected 25 N/C Not Connected 26 C8 Power Up Control for 8dB Att. Bit (Note 4) 27 C4 Power Up Control for 4dB Att. Bit (Note 4) 28 C2 Power Up Control for 2dB Att. Bit (Note 4) 29 C1 Power Up Control for 1dB Att. Bit (Note 4) 30 C0.5 Power Up Control for 0.5dB Att. Bit (Note 4) 31 C16 Power Up Control for 16dB Att. Bit (Note 4) 32 N/C Not Connected PADDLE GND Ground (Note5) 17 RFout and VD2 N/C 16 Not Connected Interstage RF Jumper Input (Note 1) N/C 8 VD1 N/C 15 N/C RF JUMP IN 18 14 21 BIAS2 7 N/C Amplifier Bias 1 connects to VD2 via inductor(Note1,6) LE 13 BIAS 1 BIAS1 19 VD1 20 20 6 11 Amplifier Bias 2 connects to VD2 N/C 5 VD1 BIAS 2 RF jump in 21 DATA GND 12 19 22 CLOCK N/C Not Connected Paddle Ground 9 N/C 4 10 18 3 N/C RF output and VD2 on same pad (external Bias Tee) (Note1,6) N/C N/C N/C 6 C8 Serial Interface Data Input (Note 3) 25 DATA CLOCK C4 5 26 Not Connected C2 4 27 Not Connected N/C C1 RF Input Port (Note 1) N/C 28 RF IN 3 C0.5 2 30 Not Connected 29 N/C N/C 1 C16 Description 31 Function 32 Pin Number Notes: 1. All RF input and output ports shall be AC coupled with external blocking capacitor. 2. Latch Enable (LE) has an internal 100KW pull-up resistor to VD1 3. Place a 10KW resistor in series, as close to pin as possible to avoid freq. resonance (see layout drawing PL-355). 4. Refer to Power-up Control Settings. 5. The exposed solder pad on the bottom of the package (See Pin Configuration) must be grounded for proper device operation 6. See application and characterization test circuit and layout drawing PL-355. Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 5 of 9 Digital Controlled Variable Gain Amplifier (DVGA) DVGA1-242A+ Application and Characterization Test Circuit Conditions: 1. Gain: Pin=-25 dBm 2. Output IP3 (OIP3): two tones, spaced 1 MHz apart +5 dBm/ tone at output. 3. Schmitt trigger used in characterization circuit. Not required when application circuit includes recommended level settings. Figure 2. Schematic of Test Circuit used for Characterization. (DUT soldered on Mini-Circuits Characterization Test Board TB-643A+). Gain, output power at 1 dB compression (P1dB) Output IP3 (OIP3), Noise Figure are measured using Agilent’s N5242A PNA-X Microwave Network Analyzer. Bill of Materials Ref. Des. Value / Description Case Style, Size C1, C4 100pF 0402 C2 100pF 0805 C3 1uF 0805 C5, C7, C8, C9 100pF 0603 C6 0.47uF 0805 L1 36nH 0402 L2 47nH 0402 R1 475Ω 0603 Product Marking black body DVGA1A model family designation R2 681Ω 0603 R3 ~ R14 10kΩ 0603 U2 HEX Inverter Trigger Fairchild P/N MM74HC14M U1 DVGA1-242A+ Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 6 of 9 Digital Controlled Variable Gain Amplifier (DVGA) DVGA1-242A+ Simplified Schematic Figure 3. The DVGA1-242A+ Serial interface consists of 6 control bits that select the desired attenuation state, as shown in Table 2 Truth Table. Table 2. Truth Table Attenuation State C16 C8 C4 C2 C1 C0.5 Reference 0 0 0 0 0 0 0.5 (dB) 0 0 0 0 0 1 1 (dB) 0 0 0 0 1 0 2 (dB) 0 0 0 1 0 0 4 (dB) 0 0 1 0 0 0 8 (dB) 0 1 0 0 0 0 16 (dB) 1 0 0 0 0 0 31.5 (dB) 1 1 1 1 1 1 Note: Not all 64 possible combinations of C0.5 - C16 are shown in table The serial interface is a 6-bit serial in, parallel-out shift register buffered by a transparent latch. It is controlled by three CMOS-compatible signals: Data, Clock, and Latch Enable (LE). The Data and Clock inputs allow data to be serially entered into the shift register, a process that is independent of the state of the LE input. The LE input controls the latch. When LE is HIGH, the latch is transparent and the contents of the serial shift register control the attenuator. When LE is brought LOW, data in the shift register is latched. The shift register should be loaded while LE is held LOW to prevent the attenuator value from changing as data is entered. The LE input should then be toggled HIGH and brought LOW again, latching the new data. The timing for this operation is defined by Figure 4 (Serial Interface Timing Diagram) and Table 3 (Serial Interface AC Characteristics). Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 7 of 9 DVGA1-242A+ Digital Controlled Variable Gain Amplifier (DVGA) Table 3. Serial Interface AC Characteristics (VD1=3V) Symbol Parameter MSB LSB tSDSUP tSDHLD 10 MHz Serial clock HIGH time 30 ns tclkL Serial clock LOW time 30 ns tLESUP LE set-up time after last clock falling edge 10 ns tLEPW LE minimum pulse width 30 ns Serial data set-up time before clock rising edge 10 ns tSDSUP tLESUP tLEPW Units tclkH LE Data Max. Serial data clock frequency (Note 1) fclk Clock Min. Serial data hold time 10 ns after clock falling edge SDHLD Note 1. fclk verified during the functional pattern test. Serial programming sections of the functional pattern are clocked at 10MHz to verify fclk specification. t Figure 4. Serial Interface Timing Diagram The DVGA1-242A+, uses a common 6-bit serial, as shown in Table 4: 6-Bit attenuator Serial Programming Register Map. The first bit, the MSB, corresponds to the 16-dB Step and the last bit, the LSB, corresponds to the 0.5dB step. Table 4. 6-Bit attenuator Serial Programming Register Map B5 B4 B3 B2 B1 B0 C16 C8 C4 C2 C1 C0.5 MSB (first in) LSB (last in) Power-up Control Settings The DVGA1-242A+ always assumes a specifiable attenuation setting on power-up, allowing a known attenuation state to be established before an initial serial control word is provided. When the attenuator powers up, the six control bits are set to whatever data is present on the six control inputs (C0.5 to C16). This allows any one of the 64 attenuation settings to be specified as the power-up state. Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 8 of 9 Digital Controlled Variable Gain Amplifier (DVGA) DVGA1-242A+ Additional Detailed Technical Information additional information is available on our dash board. To access this information click here Data Table Performance Data Swept Graphs S-Parameter (S2P Files) Data Set (.zip file) Case Style DG1677 Plastic package, exposed paddle, lead finish: Ni/Pd/Au F68 Tape & Reel Standard quantities available on reel 7” reels with 20,50,100,200, 500 or 1K devices Suggested Layout for PCB Design PL-355 Evaluation Board TB-643A+ Environmental Ratings ENV66 ESD Rating Human Body Model (HBM): Class 1A (250 to <500V) in accordance with ANSI/ESD STM 5.1 - 2001 Machine Model (MM): Class M1 (40V) in accordance with ANSI/ESD STM5.2-1999 MSL Rating Moisture Sensitivity: MSL1 in accordance with IPC/JEDEC J-STD-020D MSL Test Flow Chart Start Visual Inspection Electrical Test SAM Analysis Reflow 3 cycles, 260°C Soak 85°C/85RH 168 hours Bake at 125°C, 24 hours Visual Inspection Electrical Test SAM Analysis Stop Additional Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 9 of 9