Analog Devices Welcomes Hittite Microwave Corporation NO CONTENT ON THE ATTACHED DOCUMENT HAS CHANGED www.analog.com www.hittite.com THIS PAGE INTENTIONALLY LEFT BLANK HMC472ALP4E v00.1212 ATTENUATORS - DIGITAL - SMT 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz Typical Applications Features The HMC472ALP4E is ideal for: 0.5 dB LSB Steps to 31.5 dB • 3G Infrastructure & access points Single Control Line Per Bit • Cellular/3G, LTE & UMB TTL/CMOS Compatible Control • WiMAX, WiBN & Fixed Wireless ± 0.25 dB Typical Step Error • Test Equipment and Sensors Single +5V Supply 24 Lead Ceramic 4x4mm SMT Package: 16mm² • GSM, WCDMA & TD-SCDMA Functional Diagram General Description The HMC472ALP4E are broadband 6-bit GaAs IC digital attenuators in low cost leadless surface mount packages. This single positive control line per bit digital attenuator incorporates off chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. Covering DC to 3.8 GHz, the insertion loss is less than 2.0 dB typical. The attenuator bit values are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB. Attenuation accuracy is excellent at ± 0.25 dB typical step error with an IIP3 of +54 dBm. Six TTL/ CMOS control inputs 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 (Unless Otherwise Noted) Parameter Frequency (GHz) Typ. Max. Units 1.8 2.3 3 dB dB dB Insertion Loss DC - 1.5 GHz 1.5 - 3.0 GHz 3.0 - 3.8 GHz 1.4 1.7 1.9 Attenuation Range DC - 3.8 GHz 31.5 dB Return Loss (RF1 & RF2, All Atten. States) DC - 3.8 GHz 20 dB DC - 1.0 GHz 1.0 - 2.2 GHz 1.0 - 2.2 GHz 2.2 - 3.0 GHz 3.0 - 3.8 GHz ± (0..20 + 3% of Atten. Setting) Max. ± (0.25 + 3% of Atten. Setting) Max. ± (0.15 + 4% of Atten. Setting) Max. ± (0.30 + 3% of Atten. Setting) Max ± (0.35 + 5% of Atten. Setting) Max. dB dB dB dB dB 0.1 - 3.8 GHz 30 dBm 0.1 - 3.8 GHz 54 49 dBm dBm 40 60 ns ns Attenuation Accuracy: (Referenced to Insertion Loss) All Attenuation States 0.5 - 3.5 dB States 4.0 - 31.5 dB States All Attenuation States All Attenuation States 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) 1 Min. REF - 15.5 dB States 16.0 - 31.5 dB States DC - 3.8 GHz For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC472ALP4E v00.1212 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz 0 -0.5 -0.5 -1 -1.5 +25C +85C -40C -2 -2.5 +25 C +85 C -40 C -1 -1.5 -2 -2.5 -3 -3 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0 0.5 1 Return Loss RF1, RF2 -5 -5 RETURN LOSS (dB) RETURN LOSS (dB) 0 -10 -15 -20 -25 3 3.5 4 3 3.5 4 -20 -25 -35 0.25 0.3 0.35 31.5 dB 0 0.5 1 1.5 2 2.5 FREQUENCY (GHz) FREQUENCY (GHz) Normalized Attenuation Normalized Attenuation (Only Major States are Shown) (Only Major States are Shown) 0 0 NORMALIZED ATTENUATION (dB) NORMALIZED ATTENUATION (dB) 4 0.5-16 dB -35 0.2 3.5 -15 -30 0.15 3 -10 -30 0.1 2.5 (Only Major States are Shown) 0 0.05 2 Return Loss RF1, RF2 (Only Major States are Shown) 0 1.5 FREQUENCY (GHz) FREQUENCY (GHz) ATTENUATORS - DIGITAL - SMT Insertion Loss 0 INSERTION LOSS (dB) INSERTION LOSS (dB) Insertion Loss -5 -10 -15 -20 -25 -30 -35 -5 -10 -15 -20 -25 -30 -35 0 0.05 0.1 0.15 0.2 FREQUENCY (GHz) 0.25 0.3 0.35 0 0.5 1 1.5 2 2.5 FREQUENCY (GHz) For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] 2 HMC472ALP4E v00.1212 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz Bit Error vs. Attenuation State Bit Error vs. Attenuation State 2 0 1.5 -0.2 200 MHz BIT ERROR (dB) BIT ERROR (dB) -0.1 -0.3 50 MHz -0.4 -0.5 100 MHz, 300 MHz, 350 MHz -0.6 1 3 GHz, 3.8 GHz 100 MHz, 2 GHz 0.5 0 -0.5 -0.7 -1 -0.8 -1.5 -0.9 -1 0 4 8 12 16 20 24 28 40 MHz -2 0 32 4 8 ATTENUATION STATE (dB) 12 16 500 MHz, 1 GHz 20 24 28 32 3.5 4 ATTENUATION STAT E (dB) Bit Error vs. Frequency Bit Error vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 2 2 1.5 0.5 - 4, 16 dB 1 31.5 dB 0.5 0 -0.5 8 dB -1 31.5 dB 1 BIT ERROR (dB) BIT ERROR (dB) ATTENUATORS - DIGITAL - SMT 0.1 16 dB 0 8 dB -1 0.5-4 dB -1.5 -2 0 0.05 0.1 0.15 0.2 0.25 0.3 -2 0.35 0 0.5 1 1.5 FREQUENCY (GHz) 2 2.5 3 FREQUENCY (GHz) Bit Error vs. Frequency without AC Ground Caps (Only Major States are Shown) 3 2.5 2 8 - 31.5 dB BIT ERROR (dB) 1.5 0.5 - 4 dB 1 0.5 0 -0.5 -1 -1.5 -2 -2.5 -3 0 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) 3 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC472ALP4E v00.1212 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz Relative Phase vs. Frequency Worst Case Step Error Between Successive Attenuation States (Only Major States are Shown) 100 0.6 60 40 16 dB 31.5 dB STEP ERROR (dB) RELATIVE PHASE (deg) 80 8 dB 20 0 0.2 -0.2 -0.6 -20 0.5-4 dB -40 -1 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 FREQUENCY (GHz) Bias Voltage & Current 2 2.5 3 3.5 4 Truth Table Vdd = +5V ± 10% Control Voltage Input Vdd (V) Idd (Typ.) (mA) +4.5 2.4 +5.0 2.5 +5.5 2.6 Control Voltage State Bias Condition Low 0 to +0.8 Vdc @ -5 uA Typ. High + 2.0 to + 5.0 Vdc @ 40 uA Typ. Note: Vdd = +5V 1.5 FREQUENCY (GHz) Attenuation State RF1 - RF2 V1 16 dB V2 8 dB V3 4 dB V4 2 dB V5 1 dB V6 0.5 dB High High High High High High Reference I.L. High High High High High Low 0.5 dB High High High High Low High 1 dB High High High Low High High 2 dB High High Low High High High 4 dB High Low High High High High 8 dB Low High High High High High 16 dB Low Low Low Low Low Low 31.5 dB ATTENUATORS - DIGITAL - SMT 1 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: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] 4 HMC472ALP4E v00.1212 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz ATTENUATORS - DIGITAL - SMT Absolute Maximum Ratings RF Input Power (DC - 3 GHz) +28 dBm (T = +85 °C) Control Voltage Range (V1 to V6) -1V to Vdd +1V Bias Voltage (Vdd) +7V Channel Temperature 150 °C Continuous Pdiss (T = 85 °C) (derate 8.6 mW/°C above 85 °C) 0.56 W Thermal Resistance 116 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C ESD Sensitivity (HBM) Class 1A 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 Package Body Material Lead Finish HMC472ALP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL Rating MSL1 [1] Package Marking [2] H472A XXXX [1] Max peak reflow temperature of 260 °C [2] 4-Digit lot number XXXX 5 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC472ALP4E v00.1212 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz Pin Descriptions Function Description 1, 3, 5, 12, 14, 16, 17, 18 N/C These pins should be connected to PCB RF ground to maximize performance. 2 Vdd Supply Voltage. 4, 15 RF1, RF2 This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required. Select value based on lowest frequency of operation. 6 - 11, 13 ACG1 - ACG7 External capacitors to ground are recommended for low and high frequency operation. Select value for lowest frequency of operation. Place capacitor as close to pins as possible. For operation from 700 to 2700 MHz, these pins may be left unconnected. 19 - 24 V1 - V6 See truth table and control voltage table. GND Package bottom has an exposed metal paddle that must also be connected to RF/DC Ground. Interface Schematic For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] ATTENUATORS - DIGITAL - SMT Pin Number 6 HMC472ALP4E v00.1212 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz ATTENUATORS - DIGITAL - SMT Application Circuit 7 Note: For operations from 700 to 2700 MHz, pins 6 through 13 may be left unconnected. For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC472ALP4E v00.1212 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz ATTENUATORS - DIGITAL - SMT Evaluation PCB List of Materials for Evaluation PCB 107010 - HMC472ALP4 [1] Item Description J1 - J2 PCB Mount SMA Connector J3 14 Pin DC Connector C1 1000 pF Capacitor, 0603 Pkg. C2, C3 1000 pF Capacitor, 0402 Pkg. C4 - C7 330 pF Capacitor, 0402 Pkg. U1 HMC472ALP4E Digital Attenuator PCB [2] 106977 Evaluation PCB [1] Reference this number when ordering complete 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. [2] Circuit Board Material: Rogers 4350 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] 8