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CHR3693
21-26.5GHz Integrated Down converter
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GaAs Monolithic Microwave IC Description
The CHR3693 is a multifunction chip, which integrates a balanced cold FET mixer, a time two multiplier, and a RF self biased LNA. It is designed for a wide range of applications, typically commercial communication systems. The backside of the chip is both RF and DC grounded. This helps to simplify the assembly process. The circuit is manufactured with a PM-HEMT process, 0.25m gate length, via holes through the substrate and air bridges. It is supplied in chip form.
LO Vgx I
X2
Q
Vdx Vgm Vdl
RF
Main Features
Broadband performance 21-26.5GHz
Conversion Gain (Inf. & Sup. Mode)
24 22 Conversion Gain (dB) 20 18 16 14 12 10 20.5
18dB gain -7dBm input IP3 18dB image rejection DC power consumption: 4V, 160mA Chip size: 2,45 x 2,45 x 0,1mm
F_IF=2GHz
21.5 22.5 23.5
F_IF=3.5GHz
24.5 25.5 26.5
Main Characteristics
Tamb=25 Vd=4V C, Symbol FRF FLO FIF Gc Parameter RF frequency range LO frequency range IF frequency range Conversion gain Min 21 9 DC
RF Frequency (GHz)
Typ
Max 26.5 14 3.5
Unit GHz GHz GHz dB
18
ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions!
Ref. : DSCHR36937011 - 11 Jan 07 1/6 Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Departementale 128 - B.P.46 - 91401 Orsay Cedex France Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
CHR3693
Electrical Characteristics
21-26.5GHz MFC Down Converter
Tamb=25 Vdx=Vdl = +4V, Vgx=-0.9V, Vgm=-0.7V C,
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Symbol
FRF FLO FIF Gc NF PLO Img Sup IIP3
Parameter
RF frequency range LO frequency range IF frequency range Conversion gain Noise Figure LO Input power Image Suppression (1) Input IP3
Min
21 9 DC
Typ
Max
26.5 14 3.5
Unit
GHz GHz GHz dB dB
18 3.2 +5 18 -7 2.0:1 2.0:1 2.3:1 160
dBm dBc dBm
LO VSWR Input LO VSWR RF VSWR Input RF VSWR (21 to 23.6GHz) Input RF VSWR (24.5 to 26.5GHz) Id Bias current (2)
mA
(1) With external I/Q 90 hybrid coupler (2) Typically, Idl= 90mA, Idx=70mA
Absolute Maximum Ratings (1)
Tamb=+25 C Symbol
Vd Id Vg P_RF P_LO Tch Ta Tstg
Parameter
Maximum drain bias voltage Maximum drain bias current Gate bias voltage Maximum RF input power Maximum LO input power Maximum channel temperature Operating temperature range Storage temperature range
Values
4.5 230 -2.0 to +0.4 10 10 175 -40 to +85 -55 to +125
Unit
V mA V dBm dBm C C C
(1) Operation of this device above anyone of these parameters may cause permanent damage.
Ref. : DSCHR36937011 - 11 Jan 07 2/6 Specifications subject to change without notice
Route Departementale 128, B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
21-26.5GHz MFC Down Converter
Typical On-Wafer Measured Performance
Tamb=25 Vdx=Vdl=4V, Typical Vgx=-0.9V & Vgm=-0.7 V C,
Conversion Gain (Inf. & Sup. Mode)
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CHR3693
24 22 20 18
Conversion Gain (dB)
16 14 12 10 8 6 4 2 0 20.5
F_IF=2GHz
F_IF=3.5GHz
21.5
22.5
23.5
24.5
25.5
26.5
27.5
28.5
29.5
30.5
RF Frequency (GHz)
Image Frequency Rejection (Inf. & Sup. Mode) 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 20.5
Image suppression (dBc)
F_IF=2GHz
F_IF=3.5GHz
21.5
22.5
23.5
24.5
25.5
26.5
27.5
28.5
29.5
30.5
RF Frequency (GHz)
Ref. DSCHR36937011 - 11 Jan 07 3/6 Specifications subject to change without notice
Route Departementale 128, B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
CHR3693
21-26.5GHz MFC Down Converter
Compression vs RF Power (Inf. & Sup. Mode) @ F_IF=2GHz
21
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20 19
Conversion Gain (dB)
18 17 16 15 14 13
F_RF=20.5GHz
12 11 -30 -28 -26 -24
F_RF=23.5GHz
F_RF=26.5GHz
-22
-20
-18
-16
-14
-12
-10
-8
-6
RF Power (dBm)
Compression vs RF Power (Inf. & Sup. Mode) @ F_IF=3.5GHz 21 20 19 Conversion Gain (dB) 18 17 16 15 14 13
F_RF=20.5GHz
12 11 -30 -28 -26 -24
F_RF=23.5GHz
F_RF=26.5GHz
-22
-20
-18
-16
-14
-12
-10
-8
-6
RF Power (dBm)
Ref. : DSCHR36937011 - 11 Jan 07 4/6 Specifications subject to change without notice
Route Departementale 128, B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
21-26.5GHz MFC Down Converter
Chip Assembly and Mechanical Data
CHR3693
LO IN
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I OUT
120pF To Vgx DC Gate Supply X2 120pF To Vdx DC Drain Supply
Q OUT
120pF To Vgm DC Gate Supply
120pF To Vdl DC Drain Supply
RF IN
Note: Supply feed should be capacitively bypassed. 25m diameter gold wire is recommended.
Bonding pad positions
(Chip thickness: 100m. All dimensions are in micrometers)
Ref. DSCHR36937011 - 11 Jan 07 5/6 Specifications subject to change without notice
Route Departementale 128, B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
CHR3693
21-26.5GHz MFC Down Converter
www..com
Ordering Information
Chip form: CHR3693-99F/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. : DSCHR36937011 - 11 Jan 07 6/6 Specifications subject to change without notice
Route Departementale 128, B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09

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