CHT3091A UMS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 4

Technical content

Ref. : DSCHT30911074 -15-Mar.-01 1/4 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 DC-40GHz ATTENUATOR GaAs Monolithic Microwave IC

Description

The CHT3091a is a variable DC-40GHz attenuator designed for a wide range of applications, from military to commercial communication systems. The backside of the chip is both RF and DC grounds. This helps simplify the assembly process. The circuit is manufactured with a MESFET process, 0.7µm gate length, via holes through the substrate and air bridges. Main Features ■ Broadband performances : DC-40GHz ■ 15dBm minimum input 1dB compression point ( any attenuation) ■ DC bias : -5V<VS<0V ; -5V<VP<0V ■ Chip size : 0.91 x 0.86 x 0.10 mm Main Characteristics Tamb. = 25°C Symbol Parameter Min Typ Max Unit Fin Input frequency range DC 40 GHz Min Att. Minimum attenuation |S21| (VS=0V;VP=-5V) 3 dB Max Att. Maximum attenuation |S21| (VS=-5V;VP=0V) 20 dB VSWRin Input VSWR (any attenuation) 2.:1 VSWRout Output VSWR (any attenuation) 2.:1 Pin1dB Input 1dB compression point.(any attenuation) 15 dBm ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !

CHT3091a DC-40GHz Attenuator Ref. : DSCHT30911074 -15-Mar.-01 2/4 Specifications subject to change without notice 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 Absolute Maximum Ratings Tamb. = 25°C (1) Symbol Parameter Values Unit VP VP control voltage -6V V VS VS control voltage -6V V Pin RF input power 20 dBm Ta Operating temperature range -40 to +85 °C Tstg Storage temperature range -55 to +155 °C (1) Operation of this device above anyone of these parameters may cause permanent damage. Chip Assembly and Mechanical Data Note : Supply feed should be capacitively bypassed. 25µm diameter gold wire is to be prefered. Bonding pad positions. ( Chip thickness : 100µm. All dimensions are in micrometers )

DC-40GHz Attenuator CHT3091a vvRef. : DSCHT30911074 -15-Mar.-01 3/4 Specifications subject to change without notice 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 Typical Results Chip Typical Response ( On wafer Sij ) : Tamb = +25°C Vp = 0V to -5V & Vs = -5V to 0V -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -5 -4 -3 -2 -1 0 Vp Control Voltage ( Volt ) with Vs = -5 - Vp Insertion Loss ( dB ) 5 CHT3091 Insertion Loss vs Control Voltages as Function of FREQUENCY ( GHz ) Frequency ( GHz ) -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 0 5 10 15 20 25 30 35 40 45 50 55 60 Frequency ( GHz ) Insertion Loss ( dB ) CHT3091 Gain control

CHT3091a DC-40GHz Attenuator Ref. : DSCHT30911074 -15-Mar.-01 4/4 Specifications subject to change without notice 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 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 0 5 10 15 20 25 30 35 40 45 50 55 60 Frequency ( GHz ) Input Return Loss ( dB ) CHT3091 Input Return Loss -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 0 5 10 15 20 25 30 35 40 45 50 55 60 Frequency ( GHz ) Output Return Loss ( dB ) CHT3091 Output Return Loss

Ordering Information

Chip form : CHT3091a-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.