HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Typical Applications Features The HMC680LP4(E) is ideal for: TTL/CMOS compatible parallel or latched parallel control interface • Cellular/3G Infrastructure High Output IP3: +40 dBm (At all gain settings) • WiBro / WiMAX / 4G Low Noise Figure: 5 dB • Microwave Radio & VSAT Wide Gain Control Range: 23 dB • Test Equipment and Sensors 24 Lead 4x4 mm SMT Package: 16 mm2 • IF & RF Applications Excellent State & Step Accuracy (±0.05 dB) General Description Functional Diagram The HMC680LP4(E) is a digitally controlled variable gain amplifier which operates from 30 to 400 MHz, and can be programmed to provide -4 dB to +19 dB of gain, in 1 dB steps. The HMC680LP4(E) delivers noise figure of 5 dB in its maximum gain state, with output IP3 of up to +40 dBm in any state. This high linearity DVGA also provides a differential RF output which can be used to interface directly with SAW filters in Tx and Rx applications, and with digital to analog converters in Rx chains. The HMC680LP4(E) is housed in a RoHS compliant 4x4 mm QFN leadless package, and is CMOS/ TTL compatible. Variable gain amplifiers - digital - SMT 12 12 - 1 Electrical Specifications, TA = +25° C, 50 Ohm System, Vdd = +5V Parameter Min. Frequency Range Gain (Maximum Gain State) Gain Control Range 17 Typ. Max. Units 30 - 400 MHz 19 23 dB dB Input Return Loss 12 dB Output Return Loss 13 dB Gain Accuracy: (Referenced to Maximum Gain State) All Gain States ± (0.15 + 3% of Gain Setting) Max. Output Power for 1dB Compression Output Third Order Intercept Point (Two-Tone Output Power= +5 dBm Each Tone) [1] Output Second Order Intercept Point (Two-Tone Output Power= +5 dBm Each Tone) [1] 2nd Order 3rd Order Harmonics Step Accuracy (Referenced to Maximum Gain State) Noise Figure (max gain state) Switching Characteristics Control Supply Current Idd Amp Supply Current (RFOUTP) Amp Supply Current (RFOUTN) [1] Test frequency 50 MHz tRise, tFall (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 23 dB 25 40 65 dBm dBm dBm 70 75 dBc dBc ±0.2 dB 5 dB 11 13 4 122 122 ns ns mA mA mA 5 135 135 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Normalized Attenuation Maximum Gain vs. Frequency (Only Major States are Shown) 25 NORMALIZED ATTENUATION (dB) 0 15 +25 C +85 C -40 C 10 5 0 -5 -10 8 dB -15 16 dB -20 -25 23 dB -30 -35 0 0.1 0.2 0.3 0.4 0.5 0.6 0 0.1 FREQUENCY (GHz) 0.4 0.5 0.6 12 Output Return Loss (Only Major States are Shown) (Only Major States are Shown) 0 0 -5 I.L -15 -20 -25 -30 Maximum Attenuation -35 I.L -5 -10 RETURN LOSS (dB) RETURN LOSS (dB) 0.3 FREQUENCY (GHz) Input Return Loss -10 -15 Maximum Attenuation -20 -25 -40 -30 0 0.1 0.2 0.3 0.4 0.5 0 0.6 0.1 FREQUENCY (GHz) 0.2 0.3 0.4 0.5 0.6 FREQUENCY (GHz) Bit Error vs. Frequency Bit Error vs. Attenuation State (Only Major States are Shown) 2 5 1.5 4 Bit Error < 1dB, 400MHz And Below 3 1 1, 2, 4, 8, 16 dB BIT ERROR (dB) BIT ERROR (dB) 0.2 0.5 0 -0.5 -1 2 30MHz 1 0 -1 -2 -3 23 dB -1.5 600MHz -4 Bit Error > 1dB, 450MHz And Above -5 -2 0 0.1 0.2 0.3 0.4 FREQUENCY (GHz) 0.5 0.6 0 4 8 12 16 20 24 ATTENUATION STATE (dB) For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] variable gain amplifiers - digital - SMT GAIN (dB) 20 12 - 2 HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Relative Phase vs. Frequency Step Accuracy vs. Frequency (Only Major States are Shown) 80 2 16 dB 1 RELATIVE PHASE (deg) STEP ERROR (dB) 1.5 8 dB 0.5 0 -0.5 -1 1, 2, 4, 23 dB 0 1, 2, 4 dB 0 0.1 0.2 0.3 0.4 0.5 0.6 0 0.1 Output IP3 vs. Temperature 0.3 0.4 0.5 0.6 0.5 0.6 0.5 0.6 Output P1dB vs. Temperature (+5 dBm Output Power Per Tone) 50 40 45 35 40 30 P1dB (dBm) 35 IP3 (dBm) 0.2 FREQUENCY (GHz) FREQUENCY (GHz) 30 25 20 15 -40C +25C +85C 10 25 20 15 -40C +25C +85C 10 5 5 0 0 0 0.1 0.2 0.3 0.4 0.5 0 0.6 0.1 0.2 0.3 0.4 FREQUENCY (GHz) FREQUENCY (GHz) Output IP2 vs. Temperature Noise Figure vs. Attenuation State (+5 dBm Output Power Per Tone) 25 100 8dB 20 80 4dB 15 IP2 (dBm) NOISE FIGURE (dB) Variable gain amplifiers - digital - SMT 8 dB 20 -40 -2 12 - 3 16, 23 dB 40 -20 -1.5 12 60 2dB 1dB 10 5 60 40 -40C +25C +85C 20 I.L. 0 0 0 0.2 0.4 0.6 FREQUENCY (GHz) 0.8 1 0 0.1 0.2 0.3 0.4 FREQUENCY (GHz) For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Supply Current vs. Temperature Harmonics vs. Frequency 280 0 2nd Harmonic 260 -40 -60 240 220 -80 -100 0 0.1 0.2 0.3 0.4 0.5 0.6 -40C +25C +85C 200 4.5 5 5.5 12 VOLTAGE (V) FREQUENCY (GHz) Absolute Maximum Ratings Truth Table RF Input Power 20 dBm ATTENUATION (dB) B4[1] B3[1] B2 B1 B0 RF Output Power 22 dBm 0 0 0 0 0 0 -0.5 to Vdd +0.5V 1 0 0 0 0 1 2 0 0 0 1 0 3 0 0 0 1 1 4 0 0 1 0 0 5 0 0 1 0 1 6 0 0 1 1 0 7 0 0 1 1 1 -65 to +150 °C 8 0 1 0 0 0 -40 to +85 °C 9 0 1 0 0 1 10 0 1 0 1 0 11 0 1 0 1 1 12 0 1 1 0 0 13 0 1 1 0 1 14 0 1 1 1 0 15 0 1 1 1 1 16 1 X 0 0 0 Digital Inputs (B0-B4, Latch Enable) Bias Voltage (Vdd) 5.6 V Channel Temperature 125 °C Continuous Pdiss (T = 85 °C) (derate 42 mW/°C above 85 °C) 1.7 W Thermal Resistance (channel to ground paddle) Storage Temperature Operating Temperature 24 °C/W ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Amp Bias Voltage Vdd RF (V) Idd (Typ.) (mA) 17 1 X 0 0 1 5V 244 18 1 X 0 1 0 19 1 X 0 1 1 20 1 X 1 0 0 21 1 X 1 0 1 22 1 X 1 1 0 23 1 X 1 1 1 Control Voltage Table State Vdd = +3V Vdd = +5V Low 0 to 0.5V @ <1 µA 0 to 0.8V @ <1 µA High 2 to 3V @ <1 µA 2 to 5V @ <1 µA [1] Enabling B4 disables B3, the minimum attenuation is 16 dB Control Interface: The gain of HMC680LP4(E) is controlled by adjusting the state of the attenuator. The attenuator has a 5-bit parallel CMOS/TTL compatible interface. State of the attenuator can be set with respect to the truth table above. Power on sequence: The ideal power up sequence is: GND, Vdd, Digital inputs, RF inputs. Relative order of the digital inputs is not important as long as they are powered after VDD/GND. For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] variable gain amplifiers - digital - SMT 3rd Harmonic Id (ma) HARMONIC (dBc) -20 12 - 4 HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Outline Drawing Variable gain amplifiers - digital - SMT 12 12 - 5 NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN. Package Information Part Number Package Body Material Lead Finish MSL Rating HMC680LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] HMC680LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] Package Marking [3] H680 XXXX H680 XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Pin Descriptions Function Description 1 IBIAS Bias current to amplifier. External inductors required. 2, 5, 6, Package Bottom N/C, GND These pins and package bottom must be connected to RF/DC ground. 3 ISET External bias resistor to adjust the current of the amplifier. 4, 18 Vdd Power Supply 9, 10, 11, 12, 13 B4 - B0 Control inputs to digital attenuator. See Truth Table & Control Voltage Table. 7, 8 RFOUTP, RFOUTN Balanced amplifier outputs. External components required 20, 24 AMPINN, AMPINP Balanced Amplifier inputs. External components required. 21, 23 FB2, FB1 Feedback capacitance for the amplifier. 22 LE Common mode emitter inductor. The LE Pin requires high quality (less than 200mOhms resistance) inductor to ground. An inductance of 100nH is recommended. 14 RFIN RF input to digital attenuator. DC blocking capacitor required. 15, 16, 17 FC3 - FC1 External capacitors to ground are required. Place these capacitors close to the package. 19 ATTNOUT RF output to digital attenuator. DC blocking capacitor required. Interface Schematic For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 12 variable gain amplifiers - digital - SMT Pin Number 12 - 6 HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Application Circuit Variable gain amplifiers - digital - SMT 12 12 - 7 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC680LP4 / 680LP4E v03.0609 BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz Evaluation PCB List of Materials for Evaluation PCB 115585 [1] Item Description J1 - J2 PCB Mount SMA Connector J3 12 Pin DC Connector C1 - C8, C11 - C14 1000 pF Capacitor, 0402 Pkg. C9 100 pF Capacitor, 0402 Pkg. C10 10k pF Capacitor, 0402 Pkg. C15 4.7 µF Tantalum Capacitor, Case A Size L1, L2 680 nH Inductor, 0805 Pkg. L3, L4 330 nH Inductor, 0603 Pkg. L5 100 nH Inductor, 0603 Pkg. R1 680 Ohm Resistor, 0603 Pkg. R2 - R6 39 kOhm Resistor, 0402 Pkg. R7, R8 0 Ohm Resistor, 0402 Pkg. T1, T2 1:1 RF Transformer, MA/COM SMT Balun (ETC1-1-13) U1 HMC680LP4(E) Variable Gain Amplifier PCB [2] 115584 Evaluation PCB The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. [1] Reference this number when ordering complete evaluation PCB variable gain amplifiers - digital - SMT 12 [2] Circuit Board Material: Arlon 25FR or Rogers 4350 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 12 - 8