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MICROWAVE CORPORATION v01.0701 HMC230MS8 4 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR, 0.75 - 2.0 GHz Features 4 dB LSB Steps to 28 dB Single Positive Control Per Bit +/- 0.5 dB Typical Bit Error Pin - For - Pin Replacement to AA100-59 Digital Attenuator Typical Applications The HMC230MS8 is ideal for: 9 ATTENUATORS - SMT * Cellular * PCS, ISM, MMDS * WLL Handset * Base Station Infrastructure Functional Diagram General Description The HMC230MS8 is a broadband 3 - bit positive control GaAs IC digital attenuator in an 8 lead MSOP surface mount plastic package. Covering 0.75 to 2 GHz, the insertion loss is typically less than 2 dB. The attenuator bit values are 4 (LSB), 8, and 16 dB for a total attenuation of 28 dB. Accuracy is excellent at 0.5 dB typical with an IIP3 of up to +48 dBm. Three bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required. Electrical Specifications, TA = +25 C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated) Parameter Insertion Loss Attenuation Range Return Loss (RF1 & RF2, All Atten. States) Attenuation Accuracy: (Reference to Insertion Loss) 4, 8, 12, 16, 20 dB States 24, 28 dB States All Attenuation States Input Power for 0.1 dB Compression 5V 3V 5V 3V 0.75 - 1.4 GHz 0.75 - 1.4 GHz 1.40 - 2.0 GHz 0.75 - 2.0 GHz 0.3 + 3% of Atten. Setting Max 0.4 + 6% of Atten. Setting Max 0.3 + 3% of Atten. Setting Max 20 19 46 45 dB dB dB dBm dBm dBm dBm Frequency 0.75 - 1.7 GHz 1.7 - 2.0 GHz 0.75 - 2.0 GHz 0.75 - 1.7 GHz 1.7 - 2.0 GHz 10 13 Min. Typical 1.6 1.8 28 13 16 Max. 1.8 2.1 Units dB dB dB dB dB Input Third Order Intercept (Two-Tone Input Power = 0 dBm Each) Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 0.75 - 2.0 GHz 0.75 - 2.0 GHz 560 600 ns ns 9-8 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 v01.0701 HMC230MS8 4 dB LSB GaAs IC 3-BIT DIGITAL ATTENUATOR, 0.75 - 2.0 GHz Return Loss RF1, RF2 Insertion Loss 0 -0.5 INSERTION LOSS (dB) -1 +25 C (Only Major States are Shown) 0 -5 RETURN LOSS (dB) -40 C 16, 28 dB 9 4 dB -10 -1.5 -2 +85 C -15 -2.5 -3 0.75 -20 8 dB 1 1.25 1.5 1.75 2 -25 0.75 1 1.25 1.5 1.75 2 FREQUENCY (GHz) FREQUENCY (GHz) Normalized Attenuation (Only Major States are Shown) 0 NORMALIZED INSERTION LOSS (dB) 4 dB Bit Error vs. Attenuation State 3 8 dB -5 -10 -15 -20 -25 2 0.9 GHz 16 dB BIT ERROR (dB) 1 0 1.9 GHz 28 dB -1 -30 -35 0.75 -2 1 1.25 1.5 1.75 2 4 8 12 16 20 24 28 FREQUENCY (GHz) ATTENUATION STATE (dB) Bit Error vs. Frequency (Only Major States are Shown) 4 3 2 BIT ERROR (dB) 1 0 -1 -2 -3 -4 0.75 8 dB 4 dB 28 dB 16 dB Relative Phase vs. Frequency (Only Major States are Shown) 60 16 dB 8 dB 40 RELATIVE PHASE (deg.) 20 0 -20 4 dB -40 -60 0.75 28 dB 1 1.25 1.5 1.75 2 1 1.25 1.5 1.75 2 FREQUENCY (GHz) FREQUENCY (GHz) Note: All Data Typical Over Voltage (+3V to +5V) & Temperature (-40 to +85 deg C). 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 9-9 ATTENUATORS - SMT MICROWAVE CORPORATION v01.0701 HMC230MS8 4 dB LSB GaAs IC 3-BIT DIGITAL ATTENUATOR, 0.75 - 2.0 GHz Truth Table Control Voltage Input Control & Bias Voltages State Attenuation Setting RF1 - RF2 Low High Bias Condition 0 to +0.2Vdc @ 20 uA Max Vdd 0.2V @ 50 uA Typ 9 ATTENUATORS - SMT V1 16 dB High High High Low Low V2 4 dB High Low High High Low V3 8 dB High High Low High Low Reference I.L. Note: Vdd = +3V to +5V 0.2V 4 dB 8 dB 16 dB 28 dB Max. Atten. Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. 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 1 or PIN 5. 9 - 10 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 v01.0701 HMC230MS8 4 dB LSB GaAs IC 3-BIT DIGITAL ATTENUATOR, 0.75 - 2.0 GHz Absolute Maximum Ratings Control Voltage (V1, V2, V3) Bias Voltage (Vdd) Storage Temperature Operating Temperature RF Input Power (0.75 - 2 GHz) Vdd to +0.5 Vdc +8.0 Vdc -65 to +150 C -40 to +85 C +26 dBm 9 ATTENUATORS - SMT 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. Outline Drawing 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 - 11 MICROWAVE CORPORATION v01.0701 HMC230MS8 4 dB LSB GaAs IC 3-BIT DIGITAL ATTENUATOR, 0.75 - 2.0 GHz Evaluation Circuit Board 9 ATTENUATORS - SMT *R2 = R3 = R4 = 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 as shown is available from Hittite Microwave Corporation upon request. List of Material Item J1 - J2 J3 - J6 R1 R2, R3, R4 C1, C2 U1 PCB* Description PC Mount SMA Connector DC Pin 5k Ohm Resistor, 0402 Chip 100 Ohm Resistor, 0402 Chip 0402 Chip Capacitor, Select for Lowest Frequency of Operation HMC230MS8 Digital Attenuator 103153 Evaluation PCB 1.25" x 1.5" *Circuit Board Material: Rogers 4350 9 - 12 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 v01.0701 HMC230MS8 4 dB LSB GaAs IC 3-BIT DIGITAL ATTENUATOR, 0.75 - 2.0 GHz Notes: 9 ATTENUATORS - SMT 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 - 13 |
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