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PDF MGA-631P8 Data sheet ( Hoja de datos )
| Número de pieza | MGA-631P8 | |
| Descripción | Active Bias Low Noise Amplifier | |
| Fabricantes | AVAGO | |
| Logotipo |  |
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MGA-631P8
Low Noise, High Linearity, Active Bias Low Noise Amplifier
Data Sheet
Description
Avago Technologies’ MGA-631P8 is an economical, easy-
to-use GaAs MMIC Low Noise Amplifier (LNA) with active
bias. The LNA has low noise with excellent input return
loss and high linearity achieved through the use of Avago
Technologies’ proprietary 0.5um GaAs Enhancement-
mode pHEMT process. The LNA has an extra feature that
allows a designer to adjust supply current and gain ex-
ternally. Due to the high isolation between the input and
output, gain can be adjusted independently through
a resistor in series with a blocking capacitor from the
output pin to FB1 pin, without affecting the noise figure.
It is housed in a miniature 2.0 x 2.0 x 0.75mm3 8-pin Thin
Small Leadless Package (TSLP) package. The compact
footprint and low profile coupled with low noise, high
gain, excellent input return loss and high linearity make
the MGA-631P8 an ideal choice as an LNA for cellular in-
frastructure for GSM, CDMA, GPS and ISM applications.
It is designed for optimum use between 400MHz to
1.5GHz. For optimum performance at higher frequency
from 1.4GHz to 3GHz, the MGA-632P8 is recommend-
ed. Both MGA-631P8 and MGA-632P8 share the same
package and pinout.
Pin Configuration and Package Marking
2.0 x 2.0 x 0.75 mm3 8-lead TSLP
Features
• Low noise figure
• Good input return loss
• High linearity performance
• High Isolation
• Externally adjustable supply current, 40-80mA
• Externally adjustable gain, 15-20dB
• GaAs E-pHEMT Technology[1]
• Low cost small package size: 2.0x2.0x0.75 mm3
• Excellent uniformity in product specifications
Specifications
900MHz; 4V, 60mA (typ)
• 17.5 dB Gain
• 0.53 dB Noise Figure
• -19.4dB S11
• -34dB S12
• 33.1 dBm Output IP3
• 18.0 dBm Output Power at 1dB gain compression
Applications
• Low noise amplifier for cellular infrastructure for GSM,
CDMA, GPS and ISM.
• Other ultra low noise applications.
Note:
[1] Enhancement mode technology employs positive Vgs, thereby
eliminating the need of negative gate voltage associated with
conventional depletion mode devices.
Top View
Note:
Package marking provides
orientation and identification
“G1” is Device Code
“X” is month code
Bottom View
Note:
Pin 1 : not used Pin 5 : FB1
Pin 2 : RFin
Pin 6 : not used
Pin 3 : RF ground Pin 7 : RFout
Pin 4 : Vbias
Pin 8 : Gnd
Attention: Observe precautions for handling
electrostatic sensitive devices.
ESD Machine Model = 50 V
ESD Human Body Model = 200 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and
Control.
1 page  
MGA-631P8 Typical Performance[5]
TA = 25 °C, Vd = 4V, Id = 60mA, R1=91ohm unless stated otherwise.
40
35
30
-40°C
-30°C
25 25°C
85°C
20
15
10
780 800 820 840 860 880 900 920
Frequency (GHz)
20
18
16
-40°C
14 25°C
85°C
12
10
8
6
4
2
0
10 20 30 40 50 60 70 80 90
Id (mA)
Figure 13. OIP3 vs Frequency and Temperature Figure 14. Gain vs Id and Temperature
0.8
0.7
0.6
0.5
0.4
0.3
0.2
-40°C
0.1
25°C
85°C
0.0
10 20 30 40 50 60 70 80 90
Id (mA)
Figure 15. NF Vs Id and Temperature
40
35
30
25
20
15
10
-40°C
5
-30°C
25°C
85°C
0
10 20 30 40 50 60 70 80 90
Id (mA)
Figure 16. OIP3 vs Id and Temperature
25
20
15
10
5
R1=56ohms
R1=91ohms
R1=560ohms
0
780 800 820 840 860 880 900 920
Frequency (GHz)
Figure 17. Gain Vs Frequency and R1
1
0.9
R1=56ohms
0.8 R1=91ohms
R1=560ohms
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
780 800 820 840 860 880 900 920
Frequency (GHz)
Figure 18. NF Vs Frequency and R1
40
35
30
25
20
R1=56ohms
15 R1=91ohms
R1=560ohms
10
780 800 820 840 860 880 900 920
Frequency (GHz)
Figure 19. OIP3 Vs Frequency and R1
0
-5
R1=56ohms
-10
R1=91ohms
R1=560ohms
-15
-20
-25
-30
-35
780 800 820 840 860 880 900 920
Frequency (GHz)
0
R1=56ohms
R1=91ohms
R1=560ohms
-5
-10
-15
-20
-25
780 800 820 840 860 880 900 920
Frequency (GHz)
Figure 20. Input Return Loss Vs Frequency and Figure 21. Output Return Loss Vs Frequency
R1 and R1
Notes:
[5] Measurements obtained using demo board described in Figure 28 and Table 1, List 1.
5 Page 
Figure 33. Load pull contour plot for R1=56ohm
Figure 34. Load pull contour plot for R1=560ohm
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet MGA-631P8.PDF ] | |
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