HMC467LP3 v00.0403 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz ATTENUATORS - SMT 9 Typical Applications Features The HMC467LP3 is ideal for: 2 dB LSB Steps to 6 dB • Cellular; UMTS/3G Infrastructure High IP3: +50 dBm • Fixed Wireless & WLL +/- 0.2 dB Typical Bit Error • Microwave Radio & VSAT Single Control Line Per Bit • Test Equipment Single +5V Supply 3 mm x 3 mm x 1 mm SMT Package General Description Functional Diagram The HMC467LP3 is a broadband 2-bit GaAs IC digital attenuator in a low cost leadless surface mount package. Covering DC to 6.0 GHz, the insertion loss is less than 0.7 dB typical. The attenuator bit values are 2 (LSB) and 4 dB for a total attenuation of 6 dB. Attenuation accuracy is excellent at ± 0.2 dB typical step error with an IIP3 of +50 dBm. Two control voltage inputs, toggled between 0 and +5V, are used to select each attenuation state. A single Vdd bias of +5V is required. Electrical Specifications, TA = +25° C, With Vdd = +5V & Vctl = 0/+5V* Frequency (GHz) Parameter Min. Typ. Max. Units 0.8 1.2 dB dB Insertion Loss DC - 2.5 GHz 2.5 - 6.0 GHz 0.5 0.8 Attenuation Range DC - 6.0 GHz 6 dB Return Loss (RF1 & RF2, All Atten. States) DC - 2.5 GHz 2.5 - 6.0 GHz 20 15 dB dB DC - 6.0 GHz ± 0.2 + 2% of Atten. Setting Max. ± 0.4 + 2% of Atten. Setting Max. dB dB Input Power for 0.1 dB Compression 0.25 - 6.0 GHz 22 dBm Input Third Order Intercept Point (Two-Tone Input Power= 0 dBm Each Tone) 0.25 - 6.0 GHz 50 dBm Switching Characteristics DC - 6.0 GHz 135 155 ns ns Attenuation Accuracy: (Referenced to Insertion Loss) 2 dB State 4, 6 dB States tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) * Bypass capacitor connecting ACG1 & ACG2 to RF ground required per pin description herein. 9 - 98 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com HMC467LP3 v00.0403 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz Return Loss RF1, RF2 SUB-HARMONICALLY (Only PUMPED MIXER 17 - 25 GHz Major States are Shown) 0 0 -0.5 -5 -1 -1.5 -2 +25 C +85 C -2.5 IL 2 dB 4 dB 6 dB 9 -10 -15 -20 -25 -40 C -30 -3 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 6 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 FREQUENCY (GHz) FREQUENCY (GHz) Normalized Attenuation Bit Error vs. Attenuation State (Only Major States are Shown) 1 0.8 -2 80 MHz 500 MHz 1 GHz 2 GHz 3 GHz 4 GHz 5 GHz 6 GHz 0.6 BIT ERROR (dB) NORMALIZED ATTENUATION (dB) 0 -4 -6 2 dB 4 dB 6 dB -8 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -10 -1 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 2 4 FREQUENCY (GHz) 6 ATTENUATION STATE (dB) Bit Error vs. Frequency Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 20 1 0.8 RELATIVE PHASE (deg) 0.6 BIT ERROR (dB) ATTENUATORS - SMT RETURN LOSS (dB) INSERTION LOSS (dB) GaAs MMIC Insertion Loss 0.4 0.2 0 -0.2 -0.4 2 dB 4 dB 6 dB -0.6 -0.8 2 dB 4 dB 6 dB 15 10 5 0 -5 -1 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) 4.5 5 5.5 6 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com 9 - 99 HMC467LP3 v00.0403 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz Worst Case Step Error Between Successive Attenuation States ATTENUATORS - SMT 9 STEP ERROR (dB) 1 0.8 2 dB 0.6 4 dB 6 dB 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Bias Voltage & Current Truth Table Control Voltage Input Vdd Range= +5.0 Vdc ± 10% Attenuation Setting RF1 - RF2 Vdd (Vdc) Idd (Typ.) (mA) Idd (Max.) (mA) V1 4 dB V2 2 dB +5.0 0.7 1.2 High High Reference I.L. High Low 2 dB Low High 4 dB Low Low 6 dB Max. Atten. TTL/CMOS Control Voltages 9 - 100 6 FREQUENCY (GHz) State Bias Condition Low 0 to 0.8 Vdc @ -5 uA Typ. High +2.0 to +5.0 Vdc @ 40 uA Typ. Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com HMC467LP3 v00.0403 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz Absolute Maximum Ratings -0.5 Vdc to Vdd +1 Vdc Bias Voltage (Vdd) +7.0 Vdc Staorage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C RF Input Power +30 dBm 9 ATTENUATORS - SMT Control Voltage (V1, V2) Outline Drawing NOTES: 1. MATERIAL PACKAGE BODY: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED. 2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY 3. LEAD AND GROUND PADDLE PLATING: Sn/Pb SOLDER 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE 6. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 7. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 8. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com 9 - 101 HMC467LP3 v00.0403 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz Pin Descriptions ATTENUATORS - SMT 9 Pin Number Function Description 1, 2, 4, 9 - 12, 14, 15 N/C These pins should be connected to PCB RF ground to maximize performance. 3 Vdd Supply Voltage 5, 8 V2, V1 See truth table and control voltage table. 6, 7 ACG1, ACG2 External capacitor to ground is required. Select value for lowest frequency of operation. Place capacitor as close to pins as possible. 13, 16 RF2, RF1 These pins are DC coupled and matched to 50 Ohm. Blocking capacitors are required. GND Package bottom has an exposed metal paddle that must be connected to RF/DC ground. Interface Schematic Application Circuit 9 - 102 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com v00.0403 MICROWAVE CORPORATION HMC467LP3 2 dB LSB GaAs MMIC 2-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz Evaluation PCB ATTENUATORS - SMT 9 The circuit board used in the final 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. List of Material Item Description J1 - J2 PC Mount SMA Connector J3 - J7 DC Pin C1, C2 1000 pF Capacitor, 0402 Pkg. C3 1000 pF Capacitor, 0603 Pkg. C4 3300 pF Capacitor, 0603 Pkg. U1 HMC467LP3 Digital Attenuator PCB* 106980 Evaluation PCB * Circuit Board Material: Rogers 4350 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com 9 - 103