Digital Controlled Variable Gain Amplifier DVGA2-33+ 50Ω 0.05 to 3 GHz 31.5 dB, 0.5 dB Step, 6 Bit Serial Control The Big Deal • Integrated Amplifier and Digital Attenuator • 19 dB Gain / 31.5 dB Gain Control • Flat frequency response, ±0.7 dB (700-2100 MHz) CASE STYLE: DG1677 Product Overview The DVGA2-33+ is a 50W 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 19dB gain using a InGap HBT amplifier. Step attenuator used in DVGA2-33+ 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 medium gain and a wide range of gain control makes the DVGA2-33+ an ideal building block for any RF chain where level setting control is required in a small space. Flat frequency response, ±0.7 over 700-2100 MHz No need for external components to flatten gain. Medium Gain, 19 dB Incorporating multiple stages of amplification, the DVGA2-33+ provides medium gain over a wideband reducing cost and PCB board space. Good IP3, +30 dBm at 1.0 GHz Use in receivers and transmitters giving the users advantage in instantenous spur free dynamic range over wide bandwidths. Output Power, +16.3 dBm at 1.0 GHz The DVGA2-33+ maintains consistent output power capability over the full attenuation range and operating temperature range making it ideal to be used in remote applications such as LNB’s as the L Band driver stage. Attenuation Step size, 0.5 dB, accuracy 0.1 to 0.5 dB typ. Total attenuation, 31.5 dB Enables precise control of gain in 0.5 dB steps up to 31.5 dB. MCLP Package Low Inductance, repeatable transitions, excellent thermal pad. PCB area reduction The DVGA2-33+ combines multiple functions common to TX/RX architectures into a single 5x5mm package Flexibility in the application block diagram The DVGA2-33+ provides access to the internal circuit through external jumper (see simplified schematic) enables designers flexibility to incorporate a wide range of additional circuits. 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 Digital Controlled Variable Gain Amplifier 50W 50 - 3000 MHz 19 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, 19 dB nominal at 0dB attenuation and 1 GHz • Useable to 4 GHz • Serial control interface • Small size 5.0 x 5.0 mm DVGA2-33+ 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 DVGA2-33+ 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 19dB gain using a InGap HBT amplifier. Step attenuator used in DVGA2-33+ 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. A M151107 DVGA2-33+ 150702 Page 2 DVGA2-33+ Digital Controlled Variable Gain Amplifier (DVGA) RF Electrical Specifications(1) at 25°C, 50Ω With VD1=+3.0V, VD2=+5V Parameter Condition (GHz) Min. Typ. Max. Units 20.3 19.2 18.1 15.5 12.6 13.4 15.7 11.0 16.5 13.6 14.5 9.7 17.1 16.3 17.5 16.1 32.4 29.6 30.6 29.1 5.0 5.4 5.7 6.4 0.04 0.09 0.03 0.12 0.06 0.38 0.05 0.42 0.15 0.42 0.24 0.50 3.0 — — 20.0 — — — — — — — — — — — — — — — — — — — — — 0.12 0.23 0.13 0.3 0.16 0.6 0.3 0.7 0.4 0.7 0.6 1.1 GHz 0.05 1.0 2.0 3.0 0.05 1.0 2.0 3.0 0.05 1.0 2.0 3.0 0.05 1.0 2.0 3.0 0.05 1.0 2.0 3.0 0.05 1.0 2.0 3.0 0.05 - 1.0 1.0 - 3.0 0.05 - 1.0 1.0 - 3.0 0.05 - 1.0 1.0 - 3.0 0.05 - 1.0 1.0 - 3.0 0.05 - 1.0 1.0 - 3.0 0.05 - 1.0 1.0 - 3.0 0.05 — — 16.3 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — 91 — Frequency Range Gain (at 0 dB attenuation) Input Return Loss (all states) Output Return Loss (all states) Output Power @ 1 dB compression (all states) 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 Thermal Resistance (Amplifier) 2 dB dB dB dBm dBm dB dB dB dB dB dB dB °C/W 1. Measured in Mini-Circuits characterization test board TB-674+. See characterization Test Circuit (Fig. 2) 2. Junction to ground paddle 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 DVGA2-33+ 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 Supply Current, Id1* — — 100* µA Id2 — 69 78 mA Control Input Low** — — 0.3xVd1 V Control Input High** 0.7xVd1 — — V — — 1 mA Control Current** *During turn-on and transition between attenuation states ID1 may increase up to 2mA Absolute Maximum Ratings Parameter Ratings Operating Temperature (ground pad) Storage Temperature Vd1 -65°C to 150°C -0.3V Min., 4V Max. Vd2 5.7V Voltage on any control input** Input Power -40°C to 85°C -0.3V Min., Vd1+0.3V Max. +13dBm **Data, clock or latch enable. 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 DVGA2-33+ Digital Controlled Variable Gain Amplifier (DVGA) Table 1. Pad Description Pin Number Function Description 1 N/C Not Connected 2 RF IN RF Input Port (Note 1) 3 N/C Not Connected 4 N/C Not Connected 5 DATA Serial Interface Data Input (Note 3) 6 CLOCK Serial Interface Clock Input N/C 1 24 N/C 15 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 N/C 7 N/C Not Connected LE 13 N/C N/C 19 VD1 20 20 6 11 Not Connected N/C 5 VD1 N/C RF jump in 21 DATA GND 12 19 22 CLOCK 9 Not Connected Paddle Ground 10 N/C 4 N/C 18 3 N/C RF output and VD2 on same pad (external Bias Tee) (Note1,6) N/C N/C N/C Not Connected N/C C8 VD1 Power Supply Input N/C 25 VD1 14 C4 13 26 Ground C2 VD1 Power Supply Input GND 27 VD1 12 C1 11 28 Not Connected C0.5 Not Connected (Note 6) N/C 30 N/C 29 9 10 N/C VD1 Power Supply Input (Note 6) C16 Latch Enable Input (Note 2) VD1 31 LE 8 32 7 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 Digital Controlled Variable Gain Amplifier (DVGA) DVGA2-33+ 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-674+). 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 Product Marking black body DVGA2 XXYY model family designation Ref. Des. Value / Description Case Style, Size C1 1000pF 0402 C2 1000pF 0805 C3 1µF 0805 C4 100pF 0402 C5, C7, C8, C9 100pF 0603 C6 0.47µF 0805 L1 390nH 0402 R1 475Ω 0603 R2 681Ω 0603 R3 ~ R14 10kΩ 0603 U2 HEX Inverter Trigger Fairchild P/N MM74HC14M U1 DVGA2-33+ Note: To operate down to 10 MHz, change: 1) C1 & C2 to 2400 pF and 2) L1 to 3.9 µH 3) C1, C2, L1 should be free of resonance over usage BW 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 Digital Controlled Variable Gain Amplifier (DVGA) DVGA2-33+ Simplified Schematic Figure 3. The DVGA2-33+ 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 DVGA2-33+ Digital Controlled Variable Gain Amplifier (DVGA) Table 3. Serial Interface AC Characteristics (VD1=3V) Symbol Parameter Serial data clock frequency (Note 1) fclk Data MSB LSB tSDSUP tSDHLD Units 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 Max. tclkH LE 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 DVGA2-33+, 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 DVGA2-33+ 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 Digital Controlled Variable Gain Amplifier (DVGA) DVGA2-33+ 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-371 Evaluation Board TB-674+ 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 (100V) 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 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