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| HMC541LP3 / 541LP3E 10 dB GaAs MMIC 1-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5.0 GHz v01.1005 Typical Applications Features +/- 0.2 dB Typical Step Error Low Insertion Loss: 1.0 dB High IP3: +50 dBm Single Control Line TTL/CMOS Compatible Control Single +5V Supply 3x3 mm SMT Package 6 ATTENUATORS - SMT The HMC541LP3 / HMC541LP3E is ideal for both RF and IF applications: * Cellular Infrastructure * ISM, MMDS, WLAN, WiMAX, WiBro * Microwave Radio & VSAT * Test Equipment and Sensors Functional Diagram General Description The HMC541LP3 & HMC541LP3E are broadband 1-bit GaAs IC digital attenuators in low cost leadless surface mount packages. This single positive control line digital attenuator utilizes off chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. Covering DC to 5.0 GHz, the insertion loss is less than 1.0 dB typical. Attenuation accuracy is excellent at 0.2 dB typical step error. The attenuator also features a high IIP3 of +50 dBm. One TTL/CMOS control input is used to select the attenuation state. A single Vdd bias of +5V is required. Electrical Specifications, TA = +25 C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted) 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 DC - 5.0 GHz tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 20 23 ns ns Frequency (GHz) DC - 2.0 GHz 2.0 - 3.5 GHz 3.5 - 5.0 GHz DC - 5.0 GHz DC - 2.5 GHz 2.5 - 5.0 GHz DC - 5.0 GHz 0.1 - 5.0 GHz 0.1 - 5.0 GHz Min. Typ. 0.5 1.0 2.0 10 25 15 0.4 Max. 27 50 Max. 0.8 1.3 2.3 Units dB dB dB dB dB dB dB dBm dBm 6 - 176 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 HMC541LP3 / 541LP3E v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5.0 GHz Insertion Loss 0 -0.5 INSERTION LOSS (dB) Return Loss RF1, RF2 0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 -35 -40 10 dB I.L.dB 6 ATTENUATORS - SMT 6 - 177 -1 -1.5 -2 -2.5 -3 -3.5 -4 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 FREQUENCY (GHz) +25 C +85 C -40 C 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 FREQUENCY (GHz) Normalized Attenuation 0 NORMALIZED ATTENUATION (dB) -2 Relative Phase vs. Frequency 40 30 RELATIVE PHASE (deg) 20 10 0 -10 -20 -30 -40 -4 -6 -8 -10 -12 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 FREQUENCY (GHz) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 FREQUENCY (GHz) Bit Error vs. Frequency 1 0.8 0.6 Input IP3 vs. Frequency 60 50 INPUT IP3 (dBm) 40 30 20 10 0 I.L. dB 10 dB BIT ERROR (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 6 FREQUENCY (GHz) 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: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC541LP3 / 541LP3E v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5.0 GHz Bias Voltage & Current Truth Table Control Voltage Input Idd (Typ.) (mA) 1.3 1.5 1.7 V1 10 dB High Low Attenuation State RF1 - RF2 Reference I.L. 10 dB 6 ATTENUATORS - SMT Vdd = +5.0 Vdc 10% Vdd (VDC) +4.5 +5.0 +5.5 Control Voltage State Low High Note: Vdd = +5V Bias Condition 0 to +0.8V @ -5 uA Typ. +2.0 to + 5.0 Vdc @ 40 uA Typ. 6 - 178 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 HMC541LP3 / 541LP3E v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5.0 GHz Absolute Maximum Ratings RF Input Power (DC - 5.0 GHz) Control Voltage Range (V1) Bias Voltage (Vdd) Channel Temperature Continuous Pdiss (T = 85 C) (derate 14.7 mW/C above 85 C) Thermal Resistance Storage Temperature Operating Temperature ESD Sensitivity (HBM) +27 dBm (T = +85 C) -1V to Vdd +1V +7.0 Vdc 150 C 0.96 W 68 C/W -65 to +150 C -40 to +85 C Class 1B ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 6 ATTENUATORS - SMT 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 HMC541LP3 HMC541LP3E 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] 541 XXXX 541 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 6 - 179 HMC541LP3 / 541LP3E v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5.0 GHz Pin Descriptions 6 ATTENUATORS - SMT Pin Number 1 Function Vdd Description Supply Voltage. This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required. Select value based on lowest frequency of operation. Interface Schematic 2, 11 RF1, RF2 3, 4, 6, 7, 9, 10, 12, 13, 15, 16 N/C These pins should be connected to PCB RF ground to maximize performance. 5, 8 ACG1, ACG2 External capacitor to ground is required. Select value for lowest frequency of operation. Place capacitor as close to pins as possible. 14 V1 See truth table and control voltage table. GND Package bottom has an exposed metal paddle that must be connected to RF Ground. Application Circuit Recommended Component Values C1 - C3 C4, C5 1,000 pF 10% 330 pF 10% 6 - 180 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 HMC541LP3 / 541LP3E v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5.0 GHz Evaluation PCB 6 ATTENUATORS - SMT List of Material for Evaluation PCB 111317 [1] Item J1 - J2 J3 - J5 C1 - C3 C4 - C5 U1 PCB [2] Description PCB Mount SMA Connector DC Connector 1000 pF Capacitor, 0402 Pkg. 330 pF Capacitor, 0402 Pkg. HMC541LP3 / HMC541LP3E Digital Attenuator 111290 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 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. 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 6 - 181 |
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