Hittite HMC290 handbook
Contents
1. Parameter Frequency Min Typical Max Units Insertion Loss 0 7 1 4 GHz 0 5 0 7 dB 1 4 2 3 GHz 0 5 0 8 dB 2 3 2 7 GHz 0 6 0 9 dB 2 7 4 0 GHz 0 8 1 2 dB Attenuation Range 0 7 4 0 GHz 6 dB Return Loss RF1 amp RF2 All Atten States 0 7 2 7 GHz 16 20 dB 2 7 4 0 GHz 15 18 dB Attenuation Accuracy Referenced to Insertion Loss 2 4 dB States 0 7 4 0 GHz 0 2 2 of Atten Setting Max dB 6 dB States 0 7 4 0 GHz 0 3 2 of Atten Setting Max dB Input Power for 0 1 dB Compression 5V 0 7 4 0 GHz 27 dBm 3V 24 dBm Input Third Order Intercept Point 5V 0 7 4 0 GHz 52 dBm Two tone Input Power 0 dBm Each Tone 3V 50 dBm Switching Characteristics 0 7 4 0 GHz tRISE tFALL 10 90 RF 400 ns tON tOFF 50 CTL to 10 90 RF 420 ns 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 Etittite HMC290 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2 BIT DIGITAL ATTENUATOR 0 7 4 0 GHz Insertion Loss Return Loss RF1 RF2 g a N 2 8 8 Z4 Eee Q Zz 7 5 2 I 0 5 1 1 5 2 2 5 3 3 5 4 0 5 1 1 5 2 2 5 3 3 5 4 dp FREQUENCY GHz FREQUENCY GHz am Absolute Bit Error H Normalized Attenuation vs Attenuation State lt L 1 Zz a LL A 0 75 z a 2 lt m z os AEE g 5 z 0 25 a O a 0 0 5 1 1 5 2 2 5 3 3 5 4 2 42. gt op op X O lt PL LU lt L HMC290 1 ittite MICROWAVE CORPORATION HMC290 2 dB LSB GaAs MMIC 2 BIT DIGITAL Typical Applications The HMC290 is ideal for e Cellular e PCS ISM MMDS e WLL Handset amp BaseStation Functional Diagram Tooo RF2 1 1 Sf2aB 6 V2 GND 2 5 N C RP 13 4448 4 V1 j Electrical Specifications ATTENUATOR 0 7 4 0 GHz Features 2 dB LSB Steps to 6 dB Single Positive Control Per BIT 0 2 dB Typical Bit Error Miniature SOT 26 Package 9 mm General Description The HMC290 is a broadband 2 bit positive control GaAs IC digital attenuator in a 6 lead SOT26 sur face mount plastic package Covering 0 7 to 4 GHz the insertion loss is typically less than 0 7 dB The attenuator bit values are 2 LSB and 4 dB for a total attenuation of 6 dB Accuracy is excellent at 0 2 dB typical with an IIP3 of up to 52 dBm Two 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 resis tor is required Occupying less than 9 mm this is the smallest 2 bit digital attenuator available T 25 C Vdd 3V to 5V amp Vetl 0 Vdd Unless Otherwise Stated
3. 6 FREQUENCY GHz ATTENUATION STATE dB Absolute Bit Error vs Frequency Relative Phase vs Frequency 1 0 75 3 a rf x i i lt E 0 5 4 2 22 22 eee ee beens hese ech ene a th E E 3 0 25 T 0 5 1 1 5 2 2 5 3 3 5 4 FREQUENCY GHz FREQUENCY GHz Note All Data Typical Over Voltage 3V to 5V amp 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 Enittite HMC290 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2 BIT DIGITAL ATTENUATOR 0 7 4 0 GHz Truth Table Control amp Bias Voltages Control Voltage Input nee State Bias Condition A Setti a Pa ma Te rae is Beo Low 0 to 0 2V 20 uA Max High Vdd 0 2V 50 uA Max High High Reference I L Note Vdd 3V to 5V 0 2V High Low 2 dB Low High 4 dB op 6 dB I Low Low Max Atten d Any combination of the above states will provide an attenuation Ce approximately equal to the sum of the bits selected x 5 Application Circuit A 100pF RF20 e 4 6 V2 X C2 2dB K5 GND r 2 5 N C RF1 o 3 4 o V1 C1 R1 gt 5k Ohm Vdd DC blocking capacitors C1 amp C2
4. Chelmsford MA 01824 Phone 978 250 3343 Fax 978 250 3373 Order Online at www hittite com O Ap aa 2 lt Z i L Enittite HMC290 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2 BIT DIGITAL ATTENUATOR 0 7 4 0 GHz Evaluation Circuit Board J1 103370 2 RF 1 R2 R3 100 Ohm These resistors are optional and may be used to enhance decoupling of the RF path from the control inputs gt op op X O lt A LL lt L J2 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 Description Ji J2 PC Mount SMA Connector J3 J6 DC Pin R1 5k Ohm Resistor 0402 Chip R2 R3 100 Ohm Resistor 0402 Chip C1 C2 0402 Chip Capacitor Select for Lowest Frequency of Operation U1 HMC290 Digital Attenuator PCB 103370 Evaluation PCB 1 5 x 1 5 Circuit Board Material Rogers 4350 For price delivery and to place orders please contact Hittite Microwave Corporation 12 Elizabeth Drive Che
5. are required on RF1 amp 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 throught either PIN 3 or PIN 1 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 Enittite HMC290 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2 BIT DIGITAL ATTENUATOR 0 7 4 0 GHz Absolute Maximum Ratings Control Voltage V1 V2 Vdd 0 5 Vdc Bias Voltage Wao 8 0 Vdc Storage Temperature 65 to 150 C Gone Temperature 40 to 85 C RF Input Power 0 7 4 GHz 28 dBm Outline Drawing LOT NUMBER 009 0 22 003 0 08 NOTES 1 PACKAGE BODY MATERIAL LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED 057 1 45 pee 0 33 2 LEADFRAME MATERIAL COPPER ALLOY MAX gt i 3 LEADFRAME PLATING Sn Pb SOLDER fo 4 DIMENSIONS ARE IN INCHES MILLIMETERS 0374 0 95 TYP Jl DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0 15mm PER SIDE 15 006 0 A DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0 25mm PER SIDE 000 0 00 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
6. lmsford MA 01824 Phone 978 250 3343 Fax 978 250 3373 Order Online at www hittite com Etittite HMC290 MICROWAVE CORPORATION 2 dB LSB GaAs MMIC 2 BIT DIGITAL ATTENUATOR 0 7 4 0 GHz Notes gt op op oC O lt TA LUI Z lt 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
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