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PDF MGA-21108 Data sheet ( Hoja de datos )
| Número de pieza | MGA-21108 | |
| Descripción | Broadband Fully Integrated Matched Low-Noise Amplifier MMIC | |
| Fabricantes | AVAGO | |
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MGA-21108
Broadband Fully Integrated Matched Low-Noise Amplifier MMIC
Data Sheet
Description
Avago Technologies’ MGA-21108 is a fully integrated
GaAs Low Noise amplifier MMIC for use in the (1.5 - 8) GHz
band. Broadband performance is achieved with only one
external input matching component. Power supply chokes
and coupling capacitors are also integrated. It is housed
in a miniature (2.5 x 2.5 x 0.55) mm 8-pin STSLP package.
It includes a CMOS-compatible shutdown pin which can
also be used as a variable gain bias pin. The ease-of-use
and broadband performance make the MGA-21108 an
ideal choice as a LNA for multistandard, multiband radio
applications.
Component Image
2.5 x 2.5 x 0.55 mm3 8-Lead STSLP
21108
YYWW
Top View
Pin Configuration
Features
• Broadband gain with 1.4V-3.3V single-supply
• High gain : (18.7-10.7) dB at (1.5 - 8) GHz
• Low-noise : (1.5 – 2.8) dB at (1.5 -8) GHz
• Low power operation at 18mA nominal current
• Internally matched to 50 Ohm at RF output
• CMOS-compatible variable bias control and shutdown
pin
• GaAs E-pHEMT Technology[1]
• Low cost, low-profile package : (2.5 x 2.5 x 0.55) mm3
Typical Performance
At 3.5GHz; 1.4V, 17 mA (typ) :
• 17.6 dB Gain
• 1.4 dB Noise Figure
• IP1dB : -12.3 dBm
• IIP3 : -3.3 dBm
• S11 : -6.8 dB; S22 : -7.4 dB
• Shutdown current : < 200uA
Applications
• LNA for GPS, WCDMA, IEEE 802.11g/a, 802.16e
• Low-noise 50-Ohm Gain-block
• Broadband LNA for multistandard, multiband radio
Bottom View
Note:
Package marking provides orientation and identification
“21108” = Product Code
“YY” = Year of manufacture
“WW” = Work Week of manufacture
Note:
1. Enhancement-mode technology employs positive Vgs, thereby elim-
inating the need of negative gate voltage associated with conven-
tional depletion mode devices.
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 50 V
ESD Human Body Model = 300 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.
1 page  
1
Vsd
2
3
RFin 4
L1
MGA-21108
Top View
Vdd
R2
C1
8
7 Not
6 Used
5 Not
Used
RFout
R1
Figure 5. Circuit schematic for Demo Board in Figure 4
20
S21
10
0
S11
-10
S22
-20
-30
S12
-40
-50
Frequency, GHz
Figure 6. Measured broadband S-parameters of Figure 5 test circuit
5 Page 
RF parameter plots across temperature at 3V, 17mA
4.00
85˚C
3.50 25˚C
-40˚C
3.00
2.50
2.00
1.50
1.00
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0
Frequency / GHz
Figure 37. Noise Figure vs Frequency
20
18
16
14
12
10 85˚C
8
25˚C
-40˚C
6
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0
Frequency / GHz
Figure 38. Gain vs Frequency
8
6
85˚C
25˚C
4 -40˚C
2
0
-2
-4
-6
-8
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0
Frequency / GHz
Figure 39. IIP3 vs Frequency
0
-2
85˚C
25˚C
-4 -40˚C
-6
-8
-10
-12
-14
-16
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0
Frequency / GHz
Figure 40. IP1dB vs Frequency
0
-2
85˚C
25˚C
-4 -40˚C
-6
-8
-10
-12
-14
-16
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0
Frequency / GHz
Figure 41. Input Return Loss vs Frequency
0
-2
85˚C
25˚C
-4 -40˚C
-6
-8
-10
-12
-14
-16
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0
Frequency / GHz
Figure 42. Output Return Loss vs Frequency
11
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| PDF Descargar | [ Datasheet MGA-21108.PDF ] | |
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