HMC273MS10G / 273MS10GE v04.0907 ATTENUATORS - SMT 5 1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Typical Applications Features The HMC273MS10G(E) is ideal for: RoHs Compliant Product • Cellular; UMTS/3G Infrastructure 1 dB LSB Steps to 31 dB • ISM, MMDS, WLAN, WiMAX Single Positive Control Per BIT • Microwave Radio & VSAT ±0.2 dB Typical Bit Error • Test Equipment and Sensors Miniature MSOP 10 Package: 14.8mm2 Included in the HMC-DK004 Designer’s Kit Functional Diagram General Description The HMC273MS10G(E) is a general purpose broadband 5-Bit positive control GaAs IC digital attenuator in a 10 lead MSOP plastic package. Covering 0.7 to 3.8 GHz, the insertion loss is typically less than 2.5 dB. The attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB for a total attenuation of 31 dB. Accuracy is excellent at ±0.2 dB typical with an IIP3 of up to +48 dBm. Five bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required. Electrical Specifi cations, TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated) Parameter Insertion Loss Attenuation Range 0.7 - 3.8 GHz Return Loss (RF1 & RF2, All Atten. States) 0.7 - 1.4 GHz 1.4 - 2.7 GHz 2.7 - 3.8 GHz Attenuation Accuracy: (Referenced to Insertion Loss) All Attenuation States All Attenuation States All Attenuation States All Attenuation States Min. Typical Max. Units 1.8 2.3 2.8 3.5 3.9 2.4 2.9 3.4 4.2 4.4 dB dB dB dB dB 31 dB 17 20 14 dB dB dB 0.7 - 1.4 GHz 1.4 - 2.2 GHz 2.2 - 2.7 GHz 2.7 - 3.8 GHz ± (0.30 + 3% of Atten. Setting) Max ± (0.30 + 4% of Atten. Setting) Max ± (0.40 + 5% of Atten. Setting) Max ± (0.50 + 5% of Atten. Setting) Max dB dB dB dB 11 12 10 Input Power for 0.1 dB Compression Vdd = 5V Vdd = 3V 0.7 - 3.8 GHz 27 22 dBm dBm Input Third Order Intercept Point (Two-tone Input Power = 0 dBm Each Tone) Vdd = 5V Vdd = 3V 0.7 - 3.8 GHz 48 46 dBm dBm 0.7 - 3.8 GHz 560 600 ns ns Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 5 - 22 Frequency 0.7 - 1.4 GHz 1.4 - 2.3 GHz 2.3 - 2.7 GHz 2.7 - 3.7 GHz 3.7 - 3.8 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 HMC273MS10G / 273MS10GE v04.0907 1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz 5 Return Loss RF1, RF2 (Only Major States are Shown) Insertion Loss vs. Temperature -5 +25 C +85 C -40 C -1 -2 -3 -4 -5 0.5 IL 16 dB 1 dB 8 dB -10 -15 -20 31 dB -25 1 1.5 2 2.5 3 3.5 4 dB -30 0.5 4 1 1.5 FREQUENCY (GHz) 2 2.5 2 dB 3 3.5 4 FREQUENCY (GHz) Normalized Attenuation (Only Major States are Shown) Bit Error vs. Attenuation State 1 0.9 GHz 2.4 GHz 3.5 GHz -5 0.5 -10 BIT ERROR (dB) NORMALIZED ATTENUATION (dB) 0 -15 -20 -25 0 1.9 GHz -0.5 -30 -35 0.5 -1 1 1.5 2 2.5 3 3.5 0 4 4 FREQUENCY (GHz) 8 12 16 20 24 28 32 ATTENUATION STATE (dB) Bit Error vs. Frequency Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 100 2 1.5 80 31 dB RELATIVE PHASE (deg) BIT ERROR (dB) ATTENUATORS - SMT 0 RETURN LOSS (dB) INSERTION LOSS (dB) 0 2 dB 1 0.5 0 -0.5 1,4,8 dB 60 31 dB 40 16 dB 20 0 1,2,4,8 dB -20 16 dB -1 0.5 1 1.5 2 2.5 3 3.5 4 -40 0.5 1 1.5 FREQUENCY (GHz) 2 2.5 3 3.5 4 FREQUENCY (GHz) Note: All Data Typical Over Voltage (+3V to +5V) 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 - 23 HMC273MS10G / 273MS10GE v04.0907 1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz 5 Worst Case Step Error Between Successive Attenuation States Truth Table STEP ERROR (dB) ATTENUATORS - SMT 1.2 Control Voltage Input Attenuation Setting RF1 - RF2 0.8 V1 16 dB V2 8 dB V3 4 dB V4 2 dB V5 1 dB 0.4 High High High High High Reference I.L. 0 High High High High Low 1 dB High High High Low High 2 dB High High Low High High 4 dB High Low High High High 8 dB Low High High High High 16 dB Low Low Low Low Low 31 dB Max. Atten. -0.4 -0.8 -1.2 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. Control Voltages State Bias Condition Low 0 to +0.2 V @ 20 uA Max High Vdd ± 0.2V @ 100 uA Max Note: Vdd = +3V to 5V ± 0.2V Application Circuit DC blocking capacitors C1 & C2 are required on RF1 & RF2. Choose C1 = C2 = 100 ~ 300 pF to allow lowest customer specific frequency to pass with minimal loss. R1 = 5K Ohm is required to supply voltage to the circuit through either PIN 6 or PIN 10. 5 - 24 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 HMC273MS10G / 273MS10GE v04.0907 1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Control Voltage (V1 - V5) Vdd + 0.5 Vdc Bias Voltage (Vdd) +8.0 Vdc Channel Temperature 150 °C Continuous Pdiss (T=85°C) (derate 6mW/°C above 85°C) 0.4 W Thermal Resistance 163 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C RF Input Power (0.7 - 3.7 GHz) +30 dBm ESD Sensitivity (HBM) Class 1A ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing ATTENUATORS - SMT 5 Absolute Maximum Ratings NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE. 4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE. 5. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. Package Information Part Number Package Body Material Lead Finish MSL Rating HMC273MS10G Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC273MS10GE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H273 XXXX [2] H273 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, 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 - 25 HMC273MS10G / 273MS10GE v04.0907 1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Evaluation Circuit Board ATTENUATORS - SMT 5 * R2 - R6 = 100 Ohm. These resistors are optional and may be used to enhance decoupling of the RF path from the control inputs. List of Materials for Evaluation PCB 103393 [1] Item Description J1 - J2 PCB Mount SMA Connector J3 - J6 DC Pin R1 5k Ohm Resistor, 0402 Chip R2, R3, R4 100 Ohm Resistor, 0402 Chip C1, C2 0402 Chip Capacitor, Select for Lowest Frequency of Operation U1 HMC273MS10G / HMC273MS10GE Digital Attenuator PCB [2] 103391 Evaluation PCB 1.5” x 1.5” 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 ground paddle should be connected directly to the ground plane similar to that shown below. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board as shown is available from Hittite Microwave Corporation upon request. [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 5 - 26 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 HMC273MS10G / 273MS10GE v04.0907 1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz 5 ATTENUATORS - SMT Notes: 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 - 27