CHM1191 K Band Mixer GaAs Monolithic Microwave IC Description The CHM1191 is a balanced Schottky diode mixer based on a six quarter wave ring structure. It could be use in receiver or transmitter part. This circuit is manufactured with the BESMMIC process: 1 µm Schottky diode device, air bridges, via holes through the substrate, stepper lithography. An electrically identical chip with a mirror drawing versus de LO side is available under the part number CHM1190. These two MMICs could be helpful in a TX, RX architecture module. It is available in chip form. LO IF RF -2 Conversion gain (dB) IF=2GHz Main Features ■ 22-24 GHz LO frequency range ■ IF from 1 to 3 GHz ■ Low conversion loss up & down ■ High LO/RF isolation ■ Low LO input power ■ Small chip size: 1.73 x 1.53 x 0.10 mm -4 -6 -8 -10 -12 21 22 23 24 LO Frequency (GHz) Typical conversion characteristic (measurement in test fixture) Main Characteristics Tamb. = 25°C Symbol Parameter Typ Unit F_LO, LO frequency range 22-24 GHz F_IF IF frequency range 1-3 GHz Conversion loss @ P-LO = 7dBm 7 dB LO/RF isolation 30 dBc Lc I_LO/RF ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions ! Ref. :DSCHM11919025 1/6 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 25 K band Mixer CHM1191 Electrical Characteristics Tamb. = 25°C Symbol Parameter Min Typ Max Unit F_LO LO frequency range 22 24 GHz F_IF IF frequency range 1 3 GHz Lc Conversion loss @ P-LO = 7dBm (1) P_LO LO input power P-1dB Input 1dB compression 7 5 dB 7 9 7 dBm VSWR_LO LO port VSWR (50Ω) (2) 2.5:1 VSWR_RF RF port VSWR (50Ω) (2) 2.5:1 VSWR_IF RF port VSWR (50Ω) (2) 2.5:1 I_LO/RF dBm LO/RF isolation 30 dBc (1) On wafer measurements. (2) Depends on the wire bonding conditions and on the external matching network. Absolute Maximum Ratings (1) Tamb = +25°C Symbol Parameter Values Unit P_LO Maximum peak input power overdrive at LO port (2) 10 dBm P_RF Maximum peak input power overdrive at RF port (2) 10 dBm P_IF Maximum peak input power overdrive at IF port (2) 10 dBm Top Operating temperature range -40 to +85 °C Tstg Storage temperature range -55 to +125 °C (1) Operation of this device above anyone of these parameters may cause permanent damage. (2) Duration < 1s Ref. : DSCHM11919025 2/6 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 K Band Mixer CHM1191 Typical test fixture measurements Tamb. = 25°C A) Down- converter -2 -2 Conversion gain (dB) Conversion gain (dB) IF=2GHz -4 -6 -8 -10 -12 LO=23GHz -4 -6 -8 -10 -12 21 22 23 24 25 0 1 2 LO Frequency (GHz) 3 4 IF Frequency (GHz) Conversion gain versus LO frequency LO Input power= 9dBm (1) Conversion gain versus IF frequency LO Input power= 9dBm (1) B) Up- converter -2 IF=2GHz -4 Conversion gain (dB) Conversion gain (dB) -2 -6 -8 -10 -12 LO=23GHz -4 -6 -8 -10 -12 21 22 23 24 25 0 1 2 LO Frequency (GHz) Conversion gain versus LO frequency LO Input power= 9dBm (1) 4 Conversion gain versus IF frequency LO Input power= 9dBm (1) 2 2 IF=2GHz LO=23GHz 0 -2 Conversion gain (dB) Conversion gain (dB) 3 IF Frequency (GHz) -4 -6 -8 -10 -12 0 1 2 3 4 5 6 7 8 9 10 RF Input power (dBm) IF=2GHz LO=23GHz -4 -6 -8 -10 -12 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 IF Input power (dBm) Input compression point versus RF power LO Input power= 9dBm (1) Ref. : DSCHM11919025 0 -2 Input compression point versus IF power LO Input power= 9dBm (1) 3/6 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 K band Mixer 0 0 -5 -5 Return loss (dB) Return loss (dB) CHM1191 -10 -15 -20 -25 -10 -15 LO=23GHz -20 -25 21 22 23 24 25 LO frequency (GHz) 22 23 24 25 26 RF frequency (GHz) LO Return loss (1) LO input power = 9dBm RF Return loss (1) LO input power = 9dBm Return loss (dB) 0 -5 -10 -15 OL=23GHz -20 -25 0 1 2 3 4 IF frequency (GHz) IF Return loss LO input power = 9dBm (1) This measurement is made with an external matching network. See application note for further information. Ref. : DSCHM11919025 4/6 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 K Band Mixer CHM1191 Chip Mechanical Data (dimensions are in µm) 70 1730 +/- 35 1020 96 300 180 1530 +/- 35 Chip size (including saw streets) : 1730 x 1530 ± 35µm Thickness: 100µm ± 10µm Pin Description LO LO input signal RF RF input or output signal IF IF input or output signal An electrically identical chip with a mirror drawing versus de LO side is available under the part number CHM1190. Ref. : DSCHM11919025 5/6 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 K band Mixer CHM1191 Application note 1.1 0.35 2.1 0.54 εr ~ 2.2 h= 0.127 mm Example of integration using low dielectric constant substrate : Er=2.2, heigh=0.127mm (dimensions are in mm) In order to use acceptable wire bonding length, an external matching network is proposed for the LO input on low dielectric constant substrat. Ordering Information Chip form : CHM1191-99F/00 Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors S.A.S. assumes no responsability 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. : DSCHM11919025 6/6 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