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PDF CHR3861-QEG Data sheet ( Hoja de datos )
| Número de pieza | CHR3861-QEG | |
| Descripción | Integrated Down Converter | |
| Fabricantes | United Monolithic Semiconductors | |
| Logotipo |  |
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CHR3861-QEG
RoHS COMPLIANT
6-9GHz Integrated Down Converter
GaAs Monolithic Microwave IC in SMD package
Description
The CHR3861-QEG is a multifunction part,
which integrates a balanced cold FET mixer,
a LO bufffer, and a RF LNA including gain
control. It is designed for a wide range of
applications, typically ISM and commercial
communication systems.
The circuit is manufactured on a pHEMT
process, 0.25µm gate length.
It is supplied in lead-free SMD package.
Main Features
■ RF performance 5.9-9.0GHz
■ 12dB conversion gain
■ 1dBm Input IP3
■ 9dB Gain Control
■ 15dBc Image Rejection
■ 24LQFN4x5
■ ESD protected
UMS
R3861
YYWW
20
16
12
8
4
0
-4
6
GC3= -1.5V -0.7V -0.6V -0.5V -0.4V 0V
6.5 7 7.5 8 8.5 9
RF Frequency (GHz)
9.5
Main Characteristics
Tamb = +25°C, Vd = 4V
Symbol
Parameter
FRF RF frequency range
FLO LO frequency range
FIF IF frequency range
Gc Conversion gain
Min Typ Max Unit
5.9 9.0 GHz
3.0 12.5 GHz
DC 3.5 GHz
12 dB
ESD Protections: Electrostatic discharge sensitive device observe handling precautions!
Ref. : DSCHR3861-QEG1192 - 11 Jul 11
1/18
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - BP46 - 91401 Orsay Cedex France
Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
Free Datasheet http://www.datasheet4u.com/
1 page  
6-9GHz Down Converter
CHR3861-QEG
Device thermal performances
All the figures given in this section are obtained assuming that the QFN device is cooled
down only by conduction through the package thermal pad (convection mode not
considered).
The temperature is monitored at the package back-side interface (Tcase) as shown below.
The system maximum temperature must be adjusted in order to guarantee that Tcase
remains below than the maximum value specified in the next table. So, the system PCB must
be designed to comply with this requirement.
A derating must be applied on the dissipated power if the Tcase temperature can not be
maintained below than the maximum temperature specified in order to guarantee the nominal
device life time (MTTF) (see the curve Pdiss. Max below).
DEVICE THERMAL SPECIFICATION : CHR3861-QEG
Recommended max. junction temperature (Tj max)
: 164 °C
Junction temperature absolute maximum rating
: 175 °C
Max. continuous dissipated power (Pdiss. Max.)
: 1.5 W
=> Pdiss. Max. derating above Tcase(1)= 85
Junction-Case thermal resistance (Rth J-C)(2)
°C :
:
19 mW/°C
<51 °C/W
Minimum Tcase operating temperature(3)
: -40 °C
Maximum Tcase operating temperature(3)
: 85 °C
Minimum storage temperature
: -55 °C
Maximum storage temperature
: 150 °C
(1) Derating at junctio n temperature co nstant = Tj max.
(2) Rth J-C is calculated fo r a wo rst case co nsidering the ho t t e s t junc t io n o f the M M IC and all the devices biased.
(3) Tcase=P ackage back side temperature measured under the die-attach-pad (see the drawing belo w).
1.6 Tcase
1.4
1.2
1
0.8
0.6
0.4
Pdiss. Max. @Tj <Tj max (W)
0.2
0
-50 -25 0 25 50 75 100 125 150 175
Tcase (°C)
Example: QFN 16L 3x3
Location of temeprature
reference point (Tcase)
on package's bottom side
6.1
RefDSCHR3861-QEG1192 - 11 Jul 11 5/18 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
Free Datasheet http://www.datasheet4u.com/
5 Page 
6-9GHz Down Converter
CHR3861-QEG
Conversion Gain versus IF with GC3 = GC4 at max. Gain
RF = LO + IF
30
26
22
18
14
10
5.5
30
IF=1.4GHz
6 6.5
2GHz
2.5GHz
7 7.5 8
RF Frequency (GHz)
3.5GHz
8.5 9
Conversion Gain versus temperature at max. Gain
RF = LO - IF
9.5
26
22
18
14
10
5.5
-40°C
6 6.5
+25°C
7 7.5 8
RF Frequency (GHz)
+85°C
8.5 9
9.5
RefDSCHR3861-QEG1192 - 11 Jul 11
11/18
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
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet CHR3861-QEG.PDF ] | |
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