MICROWAVE CORPORATION HMC306MS10 v03.0403 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz ATTENUATORS - SMT 9 Typical Applications Features The HMC306MS10 is ideal for: 0.5 dB LSB Steps to 15.5 dB • Cellular, PCS, & 3G Single Positive Control Per Bit • ISM, MMDS ± 0.3 dB Typical Bit Error • Wireless Local Loop Miniature 15 mm2 Package: MSOP10 Functional Diagram General Description The HMC306MS10 is a broadband 5-bit positive control GaAs IC digital attenuator in a 10 lead MSOP surface mount plastic package. Covering 0.7 to 3.8 GHz, the insertion loss is typically less than 1.5 to 2.3 dB. The attenuator bit values are 0.5 (LSB), 1, 2, 4 and 8 dB for a total attenuation of 15.5 dB. Attenuation accuracy is excellent at ± 0.25 dB typical with an IIP3 of up to +52 dBm. Five bit control voltage inputs, toggled between 0 and +3 to +5V, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5V applied through an external 5K Ohm resistor is required. The HMC306MS10 occupies less than 14.8 mm². Electrical Specifications, TA = +25° C, Vdd= +3V to +5V & VCTL= 0/Vdd (Unless Otherwise Stated) Parameter Frequency (GHz) Insertion Loss Min. 0.7 - 1.4 1.4 - 2.3 2.3 - 2.7 2.7 - 3.8 Attenuation Range Return Loss (RF1 & RF2, All Atten. States) Max. Units 1.3 1.5 1.8 2.3 1.6 2.0 2.5 2.7 dB dB dB dB 15.5 dB 21 18 16 13 dB dB dB dB 0.7 - 1.4 1.4 - 2.3 2.3 - 2.7 2.7 - 3.8 2.7 - 3.8 ± 0.30 + 5% of Atten. Setting Max. ± 0.25 + 3% of Atten. Setting Max. ± 0.30 + 4% of Atten. Setting Max. ± 0.40 + 4% of Atten. Setting Max. ± 0.50 + 5% of Atten. Setting Max. dB dB dB dB dB 0.7 - 1.4 1.4 - 2.3 2.3 - 2.7 2.7 - 3.8 Attenuation Accuracy: (Referenced to Insertion Loss) All Attenuation States All Attenuation States All Attenuation States 0.5 - 13.0 dB States 13.5 - 15.5 dB States Typical 15 14 13 10 Input Power for 0.1 dB Compression Vdd = 5V Vdd = 3V 0.7 - 3.8 25 23 dBm dBm Input Third Order Intercept Point (Two-tone Input Power = 0 dBm Each Tone) Vdd = 5V Vdd = 3V 0.7 - 3.8 52 48 dBm dBm 0.7 - 3.8 560 600 ns ns Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 9 - 44 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 HMC306MS10 v03.0403 MICROWAVE CORPORATION 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Return Loss RF1, RF2 Insertion Loss (Only Major States are Shown) 0 0 9 -5 +25 C RETURN LOSS (dB) INSERTION LOSS (dB) -40 C -1 -1.5 -2 -2.5 +85 C -10 2 dB 4 dB 0.5 dB 1 dB 15.5 dB -15 -20 -3 -25 -3.5 -4 0.5 1 1.5 2 2.5 3 3.5 -30 0.5 4 1 1.5 FREQUENCY (GHz) 8 dB 2 2.5 3 3.5 4 FREQUENCY (GHz) Normalized Attenuation Absolute Bit Error vs. Attenuation State (Only Major States are Shown) 1.5 1.2 -4 2 dB -6 0.5 dB BIT ERROR (dB) NORMALIZED ATTENUATION (dB) 0 -2 1 dB 4 dB -8 -10 15.5 dB -12 8 dB -14 3.5 GHz 0.9 2.4 GHz 0.9 GHz 0.6 1.9 GHz 0.3 -16 -18 0.5 1 1.5 2 2.5 3 3.5 0 0.5 4 2 3.5 FREQUENCY (GHz) 5 6.5 8 9.5 11 12.5 Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 1.5 60 1.2 40 RELATIVE PHASE (deg.) 15.5 dB 8 dB 0.9 0.5, 1, 2 dB 4 dB 15.5 dB 0.6 0.3 1 1.5 2 2.5 FREQUENCY (GHz) 15.5 8 dB 20 0 4 dB -20 0.5, 1 dB 0 0.5 14 ATTENUATION STATE (dB) Absolute Bit Error vs. Frequency BIT ERROR (dB) ATTENUATORS - SMT -0.5 3 3.5 4 -40 0.5 1 1.5 2 2.5 2 dB 3 3.5 4 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 - 45 MICROWAVE CORPORATION HMC306MS10 v03.0403 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Truth Table Control & Bias Voltages Control Voltage Input 9 Attenuation State RF1 - RF2 V1 8 dB V2 4 dB V3 2 dB V4 1 dB V5 0.5 dB High High High High High Reference I.L. High High High High Low 0.5 dB High High High Low High 1 dB High High Low High High 2 dB High Low High High High 4 dB Low High High High High 8 dB Low Low Low Low Low 15.5 dB Max. Atten. State Bias Condition Low 0 to +0.2V @ 20 µA Max. High Vdd ± 0.2V @ 20 µA Max. Note: Vdd = +3V to 5V ± 0.2V ATTENUATORS - SMT 0.00.20.2 Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. Application Circuit Note: 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. 9 - 46 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 MICROWAVE CORPORATION HMC306MS10 v03.0403 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Absolute Maximum Ratings Vdd + 0.5 Vdc Bias Voltage (Vdd) +8.0 Vdc Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C RF Input Power (0.7 - 3.8 GHz) +28 dBm 9 ATTENUATORS - SMT Control Voltage (V1 - V5) Outline Drawing NOTES: 1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED. 2. LEADFRAME MATERIAL: COPPER ALLOY 3. LEADFRAME PLATING: Sn/Pb SOLDER 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE. 6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE. 7. ALL GROUND LEADS 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 - 47 MICROWAVE CORPORATION v03.0403 HMC306MS10 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Evaluation Circuit Board ATTENUATORS - SMT 9 * R2 - R6= 100 Ohm. These resistors are optional and may be used to enhance decoupling of the RF path from the control inputs. 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 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 - J8 DC Pin R1 5k Ohm Resistor, 0402 Pkg,. R2 - R6 100 Ohm Resistor, 0402 Pkg. C1 - C2 0402 Chip Capacitor, Select Value for Lowerst Frequency U1 HMC306MS10 Digital Attenuator PCB* 103391 Evaluation PCB 1.5” x 1.5” *Circuit Board Material: Rogers 4350 9 - 48 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 MICROWAVE CORPORATION v03.0403 HMC306MS10 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.8 GHz Notes: ATTENUATORS - SMT 9 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 - 49