CHT4016 RoHS COMPLIANT 4-16GHz 6-BIT DIGITAL ATTENUATOR GaAs Monolithic Microwave IC Description The CHT4016 is a 4-16GHz 6-bit digital attenuator designed to address a dynamic of 31.5dB by 0.5dB step. This device is manufactured on pHEMT 0.25µm process, including via holes through the substrate. Main Features 4GHz< Freq. < 16GHz Frequency range: 4 –16GHz 6-bit digital control interface 0.5dB Attenuator step 31.5dB Dynamic 0.5dB RMS attenuation error Chip dimensions: 3.64 x 1.54 x 0.1mm Attenuation versus attenuator state from 4 to 16GHz Main Characteristics V+ = 5V / V- = -5V Symbol Parameter Min Typ Unit 16 GHz Freq Frequency range Dyn Dynamic 31.5 dB Insertion loss 6.5 dB RMS attenuation error 0.5 dB Input power @ 1dB gain compression 18 dBm IL Rms_att P1dB 4 Max ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions! Ref. : DSCHT40169090 - 31 Mar 09 1/10 Specifications subject to change without notice United Monolithic Semiconductors S.A.S. Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 4-16GHz Digital Attenuator CHT4016 Electrical Characteristics T= +25°C Symbol Freq IL Parameters Operating frequency Min Typ 4 Max Unit 16 GHz Insertion Loss 6.5 dB S11 Input Return Loss -15 dB S22 Output Return Loss -15 dB Input power at 1dB gain compression 18 dBm P1dB Dyn Dynamic 31.5 dB LSB Attenuator elementary step 0.5 dB Attenuation error ±0.5 Attenuation state 1-32 Att_err ±0.8 Attenuation state 33-50 -2.5 / +0.8 Attenuation state 51-63 Rms_att dB RMS attenuation error 0.5 dB Phase variation Attenuation state 1-32 0 / +7 Attenuation state 33-50 -2.5 / +8 Attenuation state 51-63 -5 / +10 Phivar Rms_phivar RMS phase variation 4.5 ° V V+ Positive supply voltage 5 V- Negative supply voltage -5 Vctrl_L Control voltage low level Vctrl_H -4 V 0 V Control voltage high level -5 V I_V+ Positive supply DC current 6 mA I_V- Negative supply DC current 18 mA Ref. : DSCHT40169090 - 31 Mar 09 -0.5 ° 2/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Absolute Maximum Ratings (1) T= +25°C Symbol Parameter Values Unit V+ Maximum positive bias voltage 6 V V- Minimum negative bias voltage -6 V Maximum peak input power overdrive 21 dBm Operating temperature range -40 to +85 °C Storage temperature range -55 to +125 °C P_RF Ta Tstg (1) Operation of this device above anyone of these paramaters may cause permanent damage. Ref. : DSCHT40169090 - 31 Mar 09 3/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Typical Measurements T= +25°C [S] parameters S21 vs. Frequency Attenuator state 0 S11 vs. Frequency All attenuator states Ref. : DSCHT40169090 - 31 Mar 09 S22 vs. Frequency All attenuator states 4/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Attenuator performances: Attenuation error Attenuation error vs. frequency Attenuation error vs. Attenuator state 4GHz< Freq. < 16GHz All attenuator states RMS of Attenuation error Attenuation vs. attenuator state 4GHz < Freq.< 16GHz Ref. : DSCHT40169090 - 31 Mar 09 5/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Attenuator performances: Phase variation Phase variation vs. frequency Phase variation vs. Attenuator state 4GHz< Freq. < 16GHz All attenuator states RMS of Phase variation Ref. : DSCHT40169090 - 31 Mar 09 6/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Mechanical dimensions and pad allocation Chip thickness = 100µm +/- 10µm. RF pads (1, 10) = 122 x 100µm² DC and control pads (2 to 9) = 100 x 100µm² Pin number Pad name Description 1 2 3 4 5 6 7 8 9 10 I A1 A2 A3 A4 A5 A6 -5V +5V O Input RF: Attenuator bit 1 Attenuator bit 2 Attenuator bit 3 Attenuator bit 4 Attenuator bit 5 Attenuator bit 6 -5V supply voltage: interface +5V supply voltage: interface Output RF Ref. : DSCHT40169090 - 31 Mar 09 7/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Bonding recommendations Port Connection I (1) O (10) Inductance (Lbonding) = 0.3nH two wires: diameter 25µm, length 0.5µm DC and Interface pads Inductance (Lbonding) = 0.8nH one wire: diameter 25µm, length 1mm Recommended assembly diagram Recommended ESD management Refer to the application note AN0020 available at http://www.ums-gaas.com for ESD sensitivity and handling recommendations for the UMS products. Ref. : DSCHT40169090 - 31 Mar 09 8/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Biasing conditions Pin number Pad name Value 2 A1 -5V or 0V 3 A2 -5V or 0V 4 A3 -5V or 0V 5 A4 -5V or 0V 6 A5 -5V or 0V 7 A6 -5V or 0V 8 -5V -5V 9 +5V +5V Biasing conditions Ref. : DSCHT40169090 - 31 Mar 09 9/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 4-16GHz Digital Attenuator CHT4016 Attenuator control table Voltage to apply on the pads A1 to A6 state 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Att (dB) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 A6 A5 A4 A3 A2 A1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 0 0 0 0 0 0 0 0 0 -5 -5 -5 -5 -5 -5 -5 -5 0 0 0 0 0 0 0 0 -5 -5 -5 -5 -5 -5 -5 -5 0 0 0 0 0 -5 -5 -5 -5 0 0 0 0 -5 -5 -5 -5 0 0 0 0 -5 -5 -5 -5 0 0 0 0 -5 -5 -5 -5 0 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21 21.5 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 0 0 0 0 0 0 0 -5 -5 -5 -5 -5 -5 -5 -5 0 0 0 0 0 0 0 0 -5 -5 -5 -5 -5 -5 -5 -5 0 0 0 -5 -5 -5 -5 0 0 0 0 -5 -5 -5 -5 0 0 0 0 -5 -5 -5 -5 0 0 0 0 -5 -5 -5 -5 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 0 0 -5 -5 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 0 -5 Ordering Information Chip form : CHT4016-99F/00 Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors S.A.S. assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of United Monolithic Semiconductors S.A.S.. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. United Monolithic Semiconductors S.A.S. products are not authorised for use as critical components in life support devices or systems without express written approval from United Monolithic Semiconductors S.A.S. Ref. : DSCHT40169090 - 31 Mar 09 10/10 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice