HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Typical Applications Features the HMC939LP4 / HMC939LP4e is ideal for: 1.0 dB LSB Steps to 31 dB • Fiber Optics & Broadband Telecom Single Positive Control Line Per Bit t M • Microwave Radio & VSAT ±1.0 dB Typical Bit Error s • Military Radios, Radar & ECM High Input IP3: +43 dBm - • Space Applications 16mm2 Leadless SMT Plastic Package s • Sensors r o • Test & Measurement Equipment t A u Functional Diagram General Description n the HMC939LP4 & HMC939LP4E are broadband e 5-bit GaAs IC digital attenuators in low cost leadless t t surface mount packages. Covering 0.1 to 33.0 GHz, A the insertion loss is less than 5 dB typical. The attenu- ator bit values are 1.0 (LSB), 2, 4, 8, 16 for a total atten- uation of 31 dB. Attenuation accuracy is excellent at ±0.4 dB typical step error with an IIP3 of +43 dBm. Five control voltage inputs, toggled between +5V and 0V, are used to select each attenuation state. Electrical Specifications, T = +25° C, With Vdd = +5V, Vss = -5V, P0 - P4 = 0/ +5V A Parameter Frequency (GHz) Min. Typ. Max. Units 0.1 - 18.0 GHz 4.0 5.5 dB Insertion Loss 18.0 - 26.5 GHz 5.5 7.0 dB 26.5 - 33.0 GHz 6.5 8.5 dB Attenuation Range 0.1 - 33.0 GHz 31 dB Return Loss (RF1 & RF2, All Atten. States) 0.1 - 33.0 GHz 12 dB Attenuation Accuracy: (Referenced to Insertion Loss) 1.0 - 15 dB States 0.1 - 33.0 GHz ± (0.5 + 5%) of Atten. Setting Max dB 16 - 31 dB States 0.1 - 20.0 GHz ± (0.5 + 5%) of Atten. Setting Max dB 16 - 31 dB States 20.0 - 33.0 GHz ± (0.6 + 8%) of Atten. Setting Max dB 0.1 - 0.5 GHz 20 dBm Input Power for 0.1 dB Compression 0.5 - 33.0 GHz 25 dBm Input Third Order Intercept Point 0.1 - 0.5 GHz 40 dBm (Two-Tone Input Power= 0 dBm Each Tone) 0.5 - 33.0 GHz 43 dBm Switching Characteristics 0.1 - 33.0 GHz tRISE, tFALL (10/90% RF) 60 ns tON/tOFF (50% CTL to 10/90% RF) 90 ns Idd 0.1 - 33.0 GHz 2.5 4.5 6.5 mA Iss 0.1 - 33.0 GHz -7.0 -5.0 -3.0 mA InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 1 rliicgehntss eo fi sth girrda nptaerdti ebsy t himatp mlicaaPyt iorhenso uonlrt ofertoh:m e9r wit7sis 8ues -eu2.n dS5ep0re ca-inf3iyc 3aptia4otne3sn ts ou rb jpeFacttae tnoxt c:r hig9ahn7tgs 8eo wf- 2Aithn5oau0lot g-n 3oDti3ecve7i.c 3eNso . POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D

HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Normalized Attenuation Insertion Loss vs. Temperature (Only Major States are Shown) 0 0 -2 N (dB) -5 t B) O-10 ERTION LOSS (d ---864 ZED ATTENUATI---221505 s - sM INS ++2855 CC MALI-30 r -10 -40 C R O-35 o N -12 -40 t 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 A FREQUENCY (GHz) FREQUENCY (GHz) u n e Input Return Loss Output Return Loss t t (Only Major States are Shown) (Only Major States are Shown) A 0 0 -10 -10 B) B) d d SS (-20 SS (-20 O O L L N N UR-30 UR-30 T T E E R R -40 -40 -50 -50 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 FREQUENCY (GHz) FREQUENCY (GHz) Bit Error vs. Frequency Bit Error vs. Attenuation State (Only Major States are Shown) 2.4 3 2 5 GHz 10 GHz 2 18 GHz 31 dB 1.6 26.5 GHz BIT ERROR (dB) 001...482 33 GHz BIT ERROR (dB) -101 0 -2 -0.4 -3 -0.8 0 5 10 15 20 25 30 35 40 0 4 8 12 16 20 24 28 FREQUENCY (GHz) ATTENUATION STATE (dB) InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that maPy rhesounlt fero:m 9 it7s 8us-e2. S5p0ec-if3ic3ati4on3s s u b jeFcta tox c: h9an7g8e w-2ith5ou0t -n3oti3ce7. 3No POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com 2 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D

HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Relative Phase vs. Frequency Step Attenuation vs. Attenuation State (Only Major States are Shown) 0.1 - 18 GHz 120 1.6 100 Mt E (deg) 80 31 dB ON (dB) 1.2 s AS 60 ATI H U - VE P 40 TEN 0.8 rs RELATI 20 TEP AT 0.4 1 50 GGHHzz S 18 GHz o 0 t -20 0 A 0 5 10 15 20 25 30 35 40 0 4 8 12 16 20 24 28 32 u FREQUENCY (GHz) ATTENUATION STATE (dB) n e t Step Attenuation vs. Attenuation State t A 18 - 33 GHz Input Power for 0.1 dB Compression 1.6 30 B) 1.2 26 d N ( NUATIO 0.8 B (dBm) 1282 E d P ATT 0.4 P0.1 14 ++2855 CC E -40 C ST 0 26.5 GHz 33 GHz 10 -0.4 6 0 4 8 12 16 20 24 28 32 0.01 0.1 1 10 100 ATTENUATION STATE (dB) FREQUENCY (GHz) Input IP3 vs. Temperature Input IP3 Over Major Attenuation States (Minimum Attenuation State) 60 60 50 50 m) m) B B 3 (d 40 3 (d 40 P P I I +25 C 30 30 +85 C -40 C 20 20 0.01 0.1 1 10 100 0.01 0.1 1 10 100 FREQUENCY (GHz) FREQUENCY (GHz) InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 3 rliicgehntss eo fi sth girrda nptaerdti ebsy t himatp mlicaaPyt iorhenso uonlrt ofertoh:m e9r wit7sis 8ues -eu2.n dS5ep0re ca-inf3iyc 3aptia4otne3sn ts ou rb jpeFacttae tnoxt c:r hig9ahn7tgs 8eo wf- 2Aithn5oau0lot g-n 3oDti3ecve7i.c 3eNso . POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D

HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Absolute Maximum Ratings Bias Voltages & Currents RF Input Power (0.1 to 33.0 GHz) +25 dBm Vdd +5V @ 4.5 mA Control Voltage (P0 to P4) Vdd + 0.5V Vss -5V @ 5 mA t Vdd +7 Vdc Control Voltage M Vss -7 Vdc s Channel Temperature 150 °C State Bias Condition Continuous Pdiss (T = 85 oC) - (derate 6.8 mW/oC above 85 oC) 0.451 W Low 0 to 0.8V @ 1 µA s High 2 to 5V @ 1 µA Thermal Resistance 144 °C/W r Storage Temperature -65 to + 150 °C o Operating Temperature -40 to +85 °C t ELECTROSTATIC SENSITIVE DEVICE A ESD Sensitivity (HBM) Class 1A OBSERVE HANDLING PRECAUTIONS u Outline Drawing n e t t A notes: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAnD PAttern. Package Information Part Number Package Body Material Lead Finish MSL Rating Package Marking [3] HMC939LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MsL1 [1] H939 XXXX HMC939LP4e RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MsL1 [2] H939 XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that maPy rhesounlt fero:m 9 it7s 8us-e2. S5p0ec-if3ic3ati4on3s s u b jeFcta tox c: h9an7g8e w-2ith5ou0t -n3oti3ce7. 3No POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com 4 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D

HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Truth Table Control Voltage Input Attenuation t P4 P3 P2 P1 P0 State M 16 dB 8 dB 4 dB 2 dB 1 dB RF1 - RF2 s High High High High High Reference I.L. - High High High High Low 1 dB s High High High Low High 2 dB r High High Low High High 4 dB o High Low High High High 8 dB t Low High High High High 16 dB A Low Low Low Low Low 31 dB u Any Combination of the above states will provide an attenuation n approximately equal to the sum of the bits selected. e t t A Pin Descriptions Pad Number Function Description Interface Schematic 1 Vss Negative Bias -5V The pins are not connected internally; however, all data 2-4, 6-13, n/C shown herein was measured with these pins connected to 15-17, 19 RF/DC ground externally. These pins are DC coupled and matched to 50 Ohm. Blocking 5, 14 RF1, RF2 capacitors are required if RF line potential is not equal to 0V. 18 Vdd Positive Bias +5V 20 - 24 P0 - P4 See truth table and control voltage table. GND Package bottom must be connected to RF/DC ground. InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 5 rliicgehntss eo fi sth girrda nptaerdti ebsy t himatp mlicaaPyt iorhenso uonlrt ofertoh:m e9r wit7sis 8ues -eu2.n dS5ep0re ca-inf3iyc 3aptia4otne3sn ts ou rb jpeFacttae tnoxt c:r hig9ahn7tgs 8eo wf- 2Aithn5oau0lot g-n 3oDti3ecve7i.c 3eNso . POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D

HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Application Circuit t M s - s r o t A u n e t t A InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that maPy rhesounlt fero:m 9 it7s 8us-e2. S5p0ec-if3ic3ati4on3s s u b jeFcta tox c: h9an7g8e w-2ith5ou0t -n3oti3ce7. 3No POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com 6 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D

HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Evaluation PCB t M s - s r o t A u n e t t A List of Materials for Evaluation PCB 130450 [1] The circuit board used in the application should use Item Description RF circuit design techniques. Signal lines should J1, J2, J4, J5 2.9 mm PC Mount RF Connector have 50 Ohm impedance while the package ground J3 DC Connector leads should be connected directly to the ground C1, C2 1000 pF Capacitor, 0402 Pkg. plane similar to that shown. A sufficient number of u1 HMC939LP4 Digital Attenuator via holes should be used to connect the top and PCB [2] 131909 Evaluation Board bottom ground planes. The evaluation circuit board [1] Reference this number when ordering complete evaluation PCB shown is available from Hittite upon request. [2] Circuit Board Material: Rogers 4350 InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 7 rliicgehntss eo fi sth girrda nptaerdti ebsy t himatp mlicaaPyt iorhenso uonlrt ofertoh:m e9r wit7sis 8ues -eu2.n dS5ep0re ca-inf3iyc 3aptia4otne3sn ts ou rb jpeFacttae tnoxt c:r hig9ahn7tgs 8eo wf- 2Aithn5oau0lot g-n 3oDti3ecve7i.c 3eNso . POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D

HMC939LP4 / 939LP4E v01.1211 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 33 GHz Notes: t M s - s r o t A u n e t t A InfoFrmoart iopn rfiucrneis,h edde blyi vAenraylo ga Dnedvic teos ips lbaelcieeve do rtod beer sac:c Huraittet iatned Mreliiacbrleo. wHoawveeve rC, noo rpoForar tpioricne,, 2d eElilviezrayb, aentdh tDo rpivlaec,e C ohrdeelrms: sAfonardlo,g MDeAv i0ce1s8, 2In4c., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that maPy rhesounlt fero:m 9 it7s 8us-e2. S5p0ec-if3ic3ati4on3s s u b jeFcta tox c: h9an7g8e w-2ith5ou0t -n3oti3ce7. 3No POhrodnee:r 7 O81n-3-l2i9n-e4 7a0t0 w(cid:127) wOrwde.hr oitntliitnee. cato wmww.analog.com 8 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks arAe tphep plriocpearttyi oof nth eSir urepsppecotivret :o wPnehrso.ne: 978-250-3A3p4p3li c aotrio na Spuppsp@orht: iPtthitoen.ec: o1-m800-ANALOG-D