Hittite HMC348LP3 handbook
Contents
1. 5 E Oo D Q Q 0 0 5 1 1 5 2 2 5 0 0 5 1 1 5 2 2 5 FREQUENCY GHz FREQUENCY GHz Return Loss 50 Ohm System Return Loss 75 Ohm System RFC RFC RFI RF2ON RFI RF2ON RF1 RF2 OFF RF1 RF2 OFF fo T i Ss B a N Q O 9 Q r zZ a a i th a a 0 0 5 1 1 5 2 2 5 0 0 5 1 1 5 2 2 5 FREQUENCY GHz 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 H U N T T O z G Eittite HMC348LP3 MICROWAVE CORPORATION GaAs MMIC SPDT NON REFLECTIVE CATV SWITCH DC 2 5 GHz Input Compression Point 50 Ohm System m INPUT COMPRESSION POINT dB FREQUENCY GHz Absolute Maximum Ratings Bias Voltage amp Current 7 0 Vde 30 dBm 0 5V to Vdd 1 0 Vde 150 C 0 3 W 104 C W 240 C W 65 to 150 C 40 to 85 C H n N uw T O z G Control Voltages Low 0 to 0 8V 5 uA Typical High 2 0 to 5 0 Vdc 35 uA Typical 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 14 220 Order Online at www hittite com EsHittite HMC348LP3 MICROWAVE CORPORATION2. 5V Control 50 Ohm System Min ingartion cess DC 1000 MHz 0 6 0 9 dB DC 2500 MHz 0 7 1 0 dB DC 250 MHz 63 68 dB DC 750 MHz 53 58 dB Isolation DC 1000 MHz 50 55 dB DC 2000 MHz 47 52 dB DC 2500 MHz 45 50 dB Return Loss On State DC 2500 MHz 15 20 dB A 5 DC 1000 MHz 9 12 dB Return Loss RF1 RF2 Off State DC 2500 MHz 8 11 dB 50 MHz 20 23 dBm Input Power for 1 dB Compression 4000 MHz 25 28 dBm Input Third Order Intercept aie oe Two Tone Input Power 0 dBm Each Tone 6 MHz Tone Separation 2500 MHz 51 dBm Input Second Order Intercept ie e i Two Tone Input Power 0 dBm Each Tone 6 MHz Tone Separation 2500 MHz 80 dBm Switching Characteristics tRISE tFALL 10 90 RF DC 2500 MHz 25 ns tON tOFF 50 CTL to 10 90 RF 600 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 Estittite HMC348LP3 MICROWAVE CORPORATION GaAs MMIC SPDT NON REFLECTIVE CATV SWITCH DC 2 5 GHz Insertion Loss 50 Ohm System Insertion Loss 75 Ohm System 0 a A g 0 5 a ep 5 E E a z 2 1 5 2 0 0 5 1 1 5 2 2 5 0 0 5 1 1 5 2 2 5 FREQUENCY GHz FREQUENCY GHz Isolation 50 Ohm System Isolation 75 Ohm System RF1 RF2 ALL OFF T T Da Di zZz Zz 6
3. GaAs MMIC SPDT NON REFLECTIVE CATV SWITCH DC 2 5 GHz Outline Drawing BOTTOM VIEW 2 90 NUMBER 122 016 0 40 REF 012 0 30 008 0 20 MIN DIGITS ONLY E ig is 007 0 18 m 122 2 38 HMC PART EXPOSED GROUND PADDLE MUST BE CONNECTED TO RF DC GROUND SQUARE 039 1 00 031 0 80 RIES 002 0 05 i 000 0 00 1 MATERIAL PACKAGE BODY LOW STRESS INJECTION MOLDED nooo T PLASTIC SILICA AND SILICON IMPREGNATED SEATING i PLANE 2 LEAD AND GROUND PADDLE MATERIAL COPPER ALLOY J 003 0 08 3 LEAD AND GROUND PADDLE PLATING Sn Pb SOLDER 4 DIMENSIONS ARE IN INCHES MILLIMETERS 5 LEAD SPACING TOLERANCE IS NON CUMULATIVE 6 PAD BURR LENGTH SHALL BE 0 15mm MAXIMUM PAD BURR HEIGHT SHALL BE 0 05mm MAXIMUM PACKAGE WARP SHALL NOT EXCEED 0 05mm 8 ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND 9 REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN N Pin Descriptions 1 Vdd Supply Voltage 5V 10 2 4 5 6 9 12 15 16 NIC These pins should be connected to PCB RF ground to maximize isolation 3 7 14 REC RF1 RF2 These pins are DC coupled and matched to 75 Ohms Blocking capacitors are required m Vdd 10 B See truth table and control voltage table 133K A Bo 500 rA Zl 11 A See truth table and control voltage table External capacitors to ground are required ate POG ACG Select value for optimal isolatio
4. H on ap uu T O z G 14 218 MICROWAVE CORPORATION HMC348LP3 GaAs MMIC SPDT NON REFLECTIVE Typical Applications The HMC348LP3 is ideal for e 75 Ohm Systems CATV Signal Distribution Cable Modem Headend amp DBS IF Switching e 50 Ohm Systems Basestation Infrastructure amp Test Equipment Functional Diagram N C N C RF1 ACG1 TEORIEE voli j L HZ N c eee Hoe ese N C 2 aci TA RFC 3 108 o pee a N C Al 9 N C isi fei 7 ia N C N C RF2 ACG2 TOP VIEW PACKAGE BASE GND CATV SWITCH DC 2 5 GHz Features High Isolation gt 80 dB 5 MHz 50 Ohm gt 55 dB 1 GHz 50 Ohm All Off Isolation State Non Reflective Design 75 Ohm Terminations 3mm x 3mm x 1 mm SMT Package General Description The HMC348LP3 is a non reflective GaAs MESFET SPDT switch in a low cost leadless QFN surface mount plastic package ideal for CATV applications Covering DC to 2 5 GHz the switch offers high isolation low insertion loss integrated 75 Ohm ter minations and an all off state The switch features gt 80 dB isolation at 5 MHz and gt 55 dB isolation up to 1 GHz The switch operates using complemen tary positive control voltage logic lines of 5 0V and requires a 5V bias supply Vdd This switch offers excellent performance in both 50 Ohm amp 75 Ohm systems for either SPDT or SPST functions Electrical Specifications T 25 C With 0
5. n below 500 MHz 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 H U N T T O z i H U N T T O z z i 14 222 ESsittite HMC348LP3 MICROWAVE CORPORATION GaAs MMIC SPDT NON REFLECTIVE CATV SWITCH DC 2 5 GHz Application Circuit RF1 I L 3300 pF 3300 pF 4 C1 Tc 14 13 1000 Vdd o 1 11 o CTRL A C3 C4 R2 4 7 uF 3300 pF RFC gt 43 10 RCo CTRL B 3300 pF R1 c5 8 3300 p 3300 pF 7 an c J Te RF2 i The value of capacitors C1 amp C2 are critical for low frequency isolation performance below 500 MHz 3300 pF 0402 size capacitors are recommended for optimal isolation down to 5 MHz If the frequency of operation is above 500 MHz then 100 pF to 300 pF 0402 capacitors will be sufficient 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 ESsHittite HMC348LP3 MICROWAVE CORPORATION GaAs MMIC SPDT NON REFLECTIVE CATV SWITCH DC 2 5 GHz Evaluation PCB 50 Ohms J1 Vdd GND J4 Js RFC HITTITE 106253 2 e e oO ome fe oo o
6. o ooooo0oo0o0000000000000 J6 7 List of Material The circuit board used in the final application should be generated with proper RF circuit design techniques Signal J1 J3 PC Mount SMA RF Connector lines at the RF port should have 50 ohm impedance and J4 J7 DC Pin the package ground leads and package bottom should be connected directly to the ground plane similar to that shown R1 R2 100 Ohm Resistor 0402 Pkg r 7 eo above The evaluation circuit board shown above is avail C1 C2 C4 C7 3300 pF Capacitor 0402 Pkg able from Hittite Microwave Corporation upon request C3 4 7 uF Tantalum Capacitor U1 HMC348LP3 SPDT Switch PCB 106255 Evaluation PCB Circuit Board Material Rogers 4350 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 H U N T T O z a
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