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PDF CHA4861-QGG Data sheet ( Hoja de datos )
| Número de pieza | CHA4861-QGG | |
| Descripción | 6-11 GHz Variable Gain Amplifier | |
| Fabricantes | United Monolithic Semiconductors | |
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CHA4861-QGG
6-11 GHz Variable Gain Amplifier
GaAs Monolithic Microwave IC in SMD leadless package
Description
The CHA4861-QGG is a variable gain
broadband four stage monolithic amplifier.
It is designed for a wide range of
applications,
typically
commercial
communication systems.
The circuit is manufactured with a power
pHEMT process, 0.15µm gate length, via
holes through the substrate, air bridges and
electron beam gate lithography.
It is supplied in RoHS compliant SMD
package.
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Main Features
■ Broadband performances: 6-11GHz
■ 23dB gain
■ 29dBm Output IP3
■ 20dB Gain control range
■ DC bias: Vd=4.5V @ Id=160mA
■ 28L-QFN5x5
UMS30
25
20
15
10
5
0
-5
-10
Linear gain versus gain control
-1.5V
-0.4V
-0.8V
-0.2V
-0.6V
0V
-15
4 5 6 7 8 9 10 11 12 13 14
Frequency (GHz)
Main Electrical Characteristics
Tamb.= +25°C, Vd = +4.5V
Symbol
Freq
Gain
ΔG
OIP3
Parameter
Frequency range
Linear Gain
Gain control range
3rd order intercept point
A3687ARef.:DSCHA4861-QGG2262-18Sep12
1/14
Min Typ Max Unit
6 11 GHz
23 dB
20 dB
29 dBm
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  
6-11 GHz Variable Gain Amplifier
CHA4861-QGG
Typical Board Measurements
Tamb.= +25°C, Vd = +4.5V, Id = 160mA
These measurements are representative of onboard measurements as defined on the
drawing in paragraph "Evaluation mother board". Board losses are de-embedded.
30
25
20
15
10
5
0
-5
-10
-15
4
26
24
22
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-1,5
Linear Gain versus Frequency & Gain Control Voltage
-1.5V
-0.4V
-0.8V
-0.2V
-0.6V
0V
5 6 7 8 9 10 11 12
Frequency (GHz)
Linear Gain versus Gain Control Voltage & frequency
13
14
6 GHz
8.5 GHz
11 GHz
-1,3 -1,1 -0,9 -0,7 -0,5 -0,3 -0,1
Control voltage (V)
Ref. : DSCHA4861-QGG2262 - 18 Sep 12
5/14 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 
6-11 GHz Variable Gain Amplifier
Definition of the Sij reference planes
The reference planes used for Sij
measurements given above are symmetrical
from the symmetrical axis of the package
(see drawing beside). The input and output
reference planes are located at 3.66mm
offset (input wise and output wise
respectively) from this axis. Then, the given
Sij parameters incorporate the land pattern of
the evaluation motherboard recommended in
paragraph "Evaluation mother board".
CHA4861-QGG
Notes
Due to ESD protection circuits on RF input and output, an external capacitance might be
requested to isolate the product from external voltage that could be present on the RF
accesses.
ESD protections are also implemented on gate and control accesses.
The DC connections do not include any decoupling capacitor in package, therefore it is
mandatory to provide a good external DC decoupling (10nF) on the PC board, as close as
possible to the package.
Ref. : DSCHA4861-QGG2262 - 18 Sep 12
11/14
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 14 Páginas | |
| PDF Descargar | [ Datasheet CHA4861-QGG.PDF ] | |
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