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PDF CHT4699-99F Data sheet ( Hoja de datos )
| Número de pieza | CHT4699-99F | |
| Descripción | GaAs Monolithic Microwave IC | |
| Fabricantes | United Monolithic Semiconductors | |
| Logotipo |  |
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CHT4699-99F
36-44GHz Variable Attenuator
GaAs Monolithic Microwave IC
Description
The CHT4699-99F is a monolithic 36- 44GHz
Variable Voltage Attenuator.
It is designed for a wide range of
applications, from military to commercial
communication systems.
The circuit is manufactured with a MESFET
process, 0.7µm gate length, via holes
through the substrate, air bridges.
It is available in chip form.
RF_IN
V1 V2
RF_OUT
Main Features
■ Broadband performances: 36-44GHz
■ Minimum attenuation: 4dB
■ 30dB dynamic range
■ 27dBm input IP3
■ DC bias: -5 to 0V
■ Chip size 2.41x1.5x0.1mm
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30 A: V1 from -5V to 0V & V2= -5V
-32 B: V1= 0V & V2 from -5V to 0V
-34
35.0
37.5
40.0
42.5
Frequency (GHz)
45.0
A
B
47.5
50.0
Main Electrical Characteristics
Tamb.= +25°C
Symbol
Parameter
Freq Frequency range
Min Att Minimum attenuation with V1=V2= -5V
Dyn Att Dynamic range of attenuation
IIP3 Input IP3 all attenuation
Min Typ Max Unit
36.0
44.0 GHz
-4 dB
30 dB
27 dBm
Ref. : DSCHT46992090 - 30 Mar 12
1/12 Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
1 page  
36-44GHz Variable Attenuator
CHT4699-99F
Typical on wafer Measurements
Tamb.= +25°C
Gain versus Control Voltage
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30 A: V1 from -5V to 0V & V2= -5V
-32 B: V1= 0V & V2 from -5V to 0V
-34
35.0 37.5 40.0 42.5
Frequency (GHz)
45.0
A
B
47.5 50.0
Gain versus Control Voltage
0
37.5GHz 39.5GHz 41.5GHz 43.5GHz
-5
-10 V1 variable with V2= -5V
-15
-20
-25
-30
V2 variable with V1= 0V
-35
-5.0 -4.5 -4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5
0.0
Control Voltage (V1 or V2)
Ref. : DSCHT46992090 - 30 Mar 12
5/12 Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
5 Page 
36-44GHz Variable Attenuator
CHT4699-99F
Biasing sequence
To obtain good performances in linearity, biasing voltage should be applied as following:
- Control of 1st stage attenuation with V1 from –5V to 0V, with V2 fixed at -5V
- Control of 2nd stage with V2 from -5V to 0V, with V1 fixed at 0V
Voltage
0V
V1
-5V
Min.
V2
Max. Attenuation
This part could be also driven in Single Voltage Control, applying the same voltage from -5V
to 0V on V1 and V2.
Ref. : DSCHT46992090 - 30 Mar 12
11/12
Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet CHT4699-99F.PDF ] | |
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