HMC468LP3

HMC468LP3 / 468LP3E v03.1107 1 dB LSB GaAs MMIC 3-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6 GHz Features 1 dB LSB Steps to 7 dB High IP3: +50 dBm ± 0.25 dB Typical Bit Error Single Control Line Per Bit Single +5V Supply 16 Lead 3x3mm SMT Package: 9mm2 Included in the HMC-DK004 Designer’s Kit 5 ATTENUATORS - SMT Typical Applications The HMC468LP3 / HMC468LP3E is ideal for: • Cellular; UMTS/3G Infrastructure • Fixed Wireless & WLL • Microwave Radio & VSAT • Test Equipment Functional Diagram General Description The HMC468LP3 & HMC468LP3E are broadband 3-bit GaAs IC digital attenuators in low cost leadless surface mount packages. Covering DC to 6.0 GHz, the insertion loss is less than 1 dB typical up to 4 GHz. The attenuator bit values are 1 (LSB), 2 and 4 dB for a total attenuation of 7 dB. Attenuation accuracy is excellent at ±0.4 dB typical step error with an IIP3 of +50 dBm. Three control voltage inputs, toggled between 0 and +5V, are used to select each attenuation state. A single Vdd bias of +5V is required. Electrical Specifi cations, TA = +25° C, With Vdd = +5V & Vctl = 0/+5V Parameter Insertion Loss Attenuation Range Return Loss (RF1 & RF2, All Atten. States) Attenuation Accuracy: (Referenced to Insertion Loss) Input Power for 0.1 dB Compression Input Third Order Intercept Point (Two-Tone Input Power= 0 dBm Each Tone) Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) * Bypass capacitor connecting ACG1, ACG2 & ACG3 to RF ground required per pin description herein. All States 1 - 4 dB States 5 - 7 dB States Frequency (GHz) DC - 2.5 GHz 2.5 - 4.5 GHz 4.5 - 6.0 GHz DC - 6 GHz DC - 4 GHz 4.0 - 6.0 GHz DC - 2.5 GHz 2.5 - 6.0 GHz 2.5 - 6.0 GHz 0.25 - 6.0 GHz 0.25 - 6.0 GHz DC - 6 GHz 110 135 ns ns Min. Typ. 0.7 0.9 1.3 7 20 15 ± 0.2 + 2% of Atten. Setting Max. ± 0.3 + 3% of Atten. Setting Max. ± 0.4 + 4% of Atten. Setting Max. 20 50 Max. 1.0 1.3 1.8 Units dB dB dB dB dB dB dB dB dB dBm dBm 5 - 138 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC468LP3 / 468LP3E v03.1107 1 dB LSB GaAs MMIC 3-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6 GHz Return Loss RF1, RF2 Insertion Loss 0 -0.5 INSERTION LOSS (dB) RETURN LOSS (dB) -1 -1.5 -2 -2.5 -3 0 1 2 3 4 5 6 FREQUENCY (GHz) +25 C +85 C -40 C (Only Major States are Shown) 0 -5 -10 -15 -20 -25 -30 -35 0 1 2 3 4 5 6 FREQUENCY (GHz) IL 1 dB 2 dB 4 dB 7 dB 5 ATTENUATORS - SMT 5 - 139 Normalized Attenuation (Only Major States are Shown) 0 NORMALIZED ATTENUATION (dB) Bit Error vs. Attenuation State 1 -2 BIT ERROR (dB) 0.6 -4 0.2 -6 -0.2 80 MHz 500 MHz 1 GHz 2 GHz 3 GHz 4 GHz 5 GHz 6 GHz -8 1 dB 2 dB 4 dB 7 dB -0.6 -10 0 1 2 3 4 5 6 FREQUENCY (GHz) -1 1 2 3 4 5 6 7 ATTENUATION STATE (dB) Bit Error vs. Frequency (Only Major States are Shown) 1 Relative Phase vs. Frequency (Only Major States are Shown) 20 15 RELATIVE PHASE (deg) 10 5 0 -5 -10 0.6 BIT ERROR (dB) 1 dB 2 dB 4 dB 7 dB 0.2 -0.2 1 dB 2 dB 4 dB 7 dB -0.6 -1 0 1 2 3 4 5 6 FREQUENCY (GHz) 0 1 2 3 4 5 6 FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC468LP3 / 468LP3E v03.1107 1 dB LSB GaAs MMIC 3-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6 GHz 5 ATTENUATORS - SMT Worst Case Step Error Between Successive Attenuation States 1 Truth Table Control Voltage Input V1 4 dB High High V2 2 dB High High Low High Low V3 1 dB High Low High High Low Attenuation Setting RF1 - RF2 Reference I.L. 1 dB 2 dB 4 dB 7 dB 0.6 STEP ERROR (dB) 0.2 -0.2 High Low -0.6 Low -1 0 1 2 3 4 5 6 FREQUENCY (GHz) Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. Bias Voltage & Current Vdd Range= +5.0 Vdc ± 10% Vdd (Vdc) +5.0 Idd (Typ.) (mA) 1.05 Idd (Max.) (mA) 1.8 TTL/CMOS Control Voltages State Low High Bias Condition 0 to 0.8 Vdc @ -5 uA Typ. +2.0 to +5.0 Vdc @ 40 uA Typ. 5 - 140 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC468LP3 / 468LP3E v03.1107 1 dB LSB GaAs MMIC 3-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6 GHz Absolute Maximum Ratings Control Voltage (V1 to V3) Bias Voltage (Vdd) Storage Temperature Operating Temperature RF Input Power ESD Sensitivity (HBM) -0.5 Vdc to Vdd +1 Vdc +7 Vdc -65 to +150 °C -40 to +85 °C +30 dBm Class 1A 5 ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing 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 HMC468LP3 HMC468LP3E Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1 [1] Package Marking [3] 468 XXXX 468 XXXX [2] [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, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 5 - 141 ATTENUATORS - SMT HMC468LP3 / 468LP3E v03.1107 1 dB LSB GaAs MMIC 3-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6 GHz 5 ATTENUATORS - SMT Pin Descriptions Pin Number 1, 3, 4, 8, 9, 10, 12 Function N/C Description These pins should be connected to PCB RF ground to maximize performance. This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required Interface Schematic 2, 11 RF1, RF2 13 - 15 V1 - V3 See truth table and control voltage table. 5-7 16 ACG1 - ACG3 Vdd GND External capacitor to ground is required. Select value for lowest frequency of operation. Place capacitor as close to pins as possible. Supply Voltage Package bottom has an exposed metal paddle that must be connected to RF/DC ground. Application Circuit 5 - 142 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC468LP3 / 468LP3E v03.1107 1 dB LSB GaAs MMIC 3-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6 GHz Evaluation PCB 5 ATTENUATORS - SMT List of Materials for Evaluation PCB 107302 [1] Item J1 - J2 J3 - J7 C1 C2, C3 C4 U1 PCB [2] Description PCB Mount SMA Connector DC Pin 1000 pF Capacitor, 0603 Pkg. 100 pF Capacitor, 0402 Pkg. 3300 pF Capacitor, 0603 Pkg. HMC468LP3 / HMC468LP3E Digital Attenuator 107300 Evaluation PCB 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. [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 5 - 143