mga-310g Avago Technologies, mga-310g Datasheet

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mga-310g

Manufacturer Part Number
mga-310g
Description
Gnss Low Noise Amplii Er With Variable Bias Current And Shutdown Function
Manufacturer
Avago Technologies
Datasheet
MGA-310G
GNSS Low Noise amplifi er with Variable bias current
and shutdown function
Data Sheet
Description
Avago Technologies’ MGA-310G is an ultra low-noise
amplifi er designed for GNSS band applications. The LNA
uses Avago Technologies’ proprietary GaAs Enhancement-
mode pHEMT process to achieve high gain with very low
noise fi gures and high linearity. Noise fi gure distribution is
very tightly controlled. Gain and supply current are guar-
anteed parameters. A CMOS compatible shutdown pin is
included to turn the LNA off and provide variable bias.
The MGA-310G LNA is usable down to 1.8 V operation.
It achieves low noise fi gures and high gain even at 1.8 V,
making it suitable for use in critical low power GNSS band
applications.
Component Image
Surface Mount (1.13 x 1.1 x 0.5 mm
RF Out (pin 5)
RF In (pin 1)
GND (pin 2)
Vsd (pin 4)
BOTTOM VIEW
Vdd (pin 6)
Vdd (pin 6)
NC (pin 3)
TOP VIEW
NC (pin 3)
(pin 7)
NC
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 50 V
ESD Human Body Model = 250 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.
RF Out (pin 5)
Vsd (pin 4)
RF In (pin 1)
GND (pin 2)
3
) 6-lead UQFN
Note:
Package marking
provides orientation
and identifi cation
“A” = Product code
“X” = Year/month code
Features
 Advanced GaAs E-pHEMT
 Low Noise Figure: 0.82 dB typ.
 High Gain: 15.2 dB typ.
 Low external component count
 High IIP3 and IP1dB
 Wide Supply Voltage: 1 V to 3.6 V
 Shutdown current : < 1 A
 CMOS compatible shutdown pin (SD)
 Adjustable bias current via single external resistor/
 Small Footprint: (1.13 x 1.1 mm
 Low Profi le: 0.5 mm typ.
 Meets MSL1, Lead-free and halogen free
Specifi cations
At 1.575 GHz, Vdd = 2.7 V, Idd = 8.0 mA
 Gain = 15.2 dB
 NF = 0.82 dB
 IIP3 = 1.8 dBm
 IP1dB = 2.0 dBm
 S11 = -9.5 dB, S22 =-14 dB
Application
 LNA for GNSS frequency bands
Application Circuit
RFin
voltage
(Targeted Typical performance @ 25° C)
Vsd
Vdd = +2.7 V
2
)
C1
C3
RFout

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mga-310g Summary of contents

Page 1

... Gain and supply current are guar- anteed parameters. A CMOS compatible shutdown pin is included to turn the LNA off and provide variable bias. The MGA-310G LNA is usable down to 1.8 V operation. It achieves low noise fi gures and high gain even at 1.8 V, making it suitable for use in critical low power GNSS band applications ...

Page 2

Absolute Maximum Rating T = 25° Symbol Parameter Vdd Device Drain to Source Voltage (2) Idd Drain Current Input Power in,max (Vdd = 2.7 V, Idd = 8 mA) (4) P Total Power Dissipation ...

Page 3

Targeted Electrical Specifi cations T = 25° C, Freq = 1.575 GHz and 1.6017 GHz, – Typical Performance A Table 1. Performance at Vdd = Vsd = 2.7 V, Idd = 8 mA (R1 = 8.2 kOhm) nominal operating conditions ...

Page 4

Table 3. Performance at Vdd = Vsd = 1.8V, Idd = 7mA ( Ohm) nominal operating conditions Symbol Parameter and Test Condition G Gain [1] NF Noise Figure IP1dB Input 1dB Compressed Power [2] IIP3 Input 3rd Order ...

Page 5

Vsd R1 10k RFin optional, see notes below Figure 5. Application Circuit Notes:  L1 and L2 form the input matching network. The LNA module has integrated coupling ...

Page 6

... Unless otherwise stated, all measurements are made at Vdd=Vsd = 2.7V and Idd=8mA, R1=8.2kOhm MGA-310G Typical Performance Curves at 25° -10 -15 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) Figure 6. Typical S-Parameter Plot @ Vdd = 2.7 V, Idd = -10 -15 Gain (dB) -20 Input RL (dB) -25 Output RL (dB) -30 0.0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Figure 7a ...

Page 7

... MGA-310G Typical Performance Curves at 25° 0.5 1 1.5 2 Vsd (V) Figure 9. Idd vs Vsd for Vdd = 2 8.2 kOhm (kOhm) Figure 11. Idd vs R1 for Vdd = 2.7 V, Vsd = 1 2 ...

Page 8

... MGA-310G Typical Performance Curves @1.575GHz 1.6 1.4 1.2 1.0 0.8 0.6 0 Idd (mA) Figure 12. NF vs. Idd at Vdd = 2 Idd (mA) Figure 14. Gain vs. Idd at Vdd = 2 1.8 2 2.2 2.4 2.6 Vdd (V) Figure 16. IP1dB vs. Vdd at 25° 1.6 -40° C 25° C 1.4 85° C 1.2 1.0 0.8 0.6 0 Figure 13 Idd at Vdd = 1.8 V ...

Page 9

... MGA-310G Typical Performance Curves 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.0 5.0 10.0 freq, GHz Figure 18. Edwards-Sinsky Output Stability Factor (Mu) at Vdd = 2.7V, Idd=8mA 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.0 5.0 10.0 freq, GHz Figure 20. Edwards-Sinsky Output Stability Factor (Mu) at Vdd = 1.8V, Idd=7mA 9 3.0 2.5 2.0 1.5 1.0 0.5 0.0 15.0 20.0 25.0 Figure 19. Edwards-Sinsky Input Stability Factor (Mu’) at Vdd = 2.7V, Idd=8mA 3.0 2.5 2.0 1.5 1.0 0.5 0.0 15.0 20.0 25.0 Figure 21. Edwards-Sinsky Input Stability Factor (Mu’) at Vdd = 1.8V, Idd=7mA 0.0 5.0 10.0 15.0 20.0 freq, GHz ...

Page 10

... MGA-310G Measurement of 2 harmonics of 787 MHz input signal, 25° C Adjust power level of input signal@787MHz (- dBm) Isolator Figure 22. Setup diagram for measurement -20 -40 -60 -80 -100 -120 -140 -70 -60 -50 -40 -30 787MHz input power level (dBm) nd Figure 23. 2 harmonics (1.574 GHz) vs 787 MHz input signal power level 10 DC Power Supply ( Vdd & ...

Page 11

... MGA-310G RF performance @1.575GHz with 1710 MHz interferer signal at RF output, 25° Power Supply ( Vdd & Vsd ) Input DUT (MGA-310G) Figure 24. Setup diagram for measurement of RF performance with 1710 MHz interferer signal at RF output Table 4. Measurement data for RF performance with 1710 MHz interferer signal at RF output ...

Page 12

... Notes: The exceptional noise fi gure performance of the MGA-310G is due to its highly optimized design. In this regard, the Fmin of the MGA-310G shown above is locked down by the internal input pre-match. This allows the use of relatively inexpensive chip inductors for external matching. 12 Vdd ...

Page 13

... MGA-300G-AP1 Typical Scattering Parameters at 250C, Vdd = 2.7V, Idd = 8mA The S- and Noise Parameters are measured using a coplanar waveguide PCB with 10 mils Rogers® RO4350. Figure 25 shows the input and output reference planes. The circuit values are as indicated in Figure 4. Freq S11 S11 (GHz) Mag ...

Page 14

... MGA-300G-AP1 Typical Scattering Parameters at 250C, Vdd = 1.8V, Idd = 7mA Freq S11 S11 (GHz) Mag. Ang. 0.05 -0.03 -1.53 0.1 -0.04 -3.04 0.2 -0.12 -6.08 0.3 -0.23 -9.04 0.4 -0.43 -12.13 0.5 -0.14 -18.72 0.6 -0.03 -23.40 0.7 -0.22 -27.08 0.8 -0.44 -30.41 0.9 -0.50 -32.33 1.0 -0.69 -36.56 1.1 -0.82 -38.65 1.2 -0.88 -41.69 1.3 -0.91 -45.38 1.4 -1.00 -49.66 1.5 -1.18 -54.10 1.575 -1.36 -57.31 1.6 -1.43 -58.35 1.7 -1.75 -62.30 1.8 -2.07 -65.85 1.9 -2.40 -69.19 2.0 -2.71 -72.28 2.1 -3.02 -75.18 2.2 -3.33 -77.98 2.3 -3.63 -80.60 2.4 -3.91 -83.11 2.5 -4.18 -85.57 3.0 -5.45 -96.66 3.5 -6.65 -106.19 4.0 -7.78 -114.49 4.5 -8.69 -122.37 5.0 -9.08 -132.28 6.0 -12.27 -161.01 7.0 -15.21 -171.57 8.0 -20.88 -148.25 9.0 -14.28 -114.78 10.0 -8.79 -133.83 11.0 -4.03 -177.37 12.0 -3.85 161.80 13.0 -4.66 153.11 14.0 -4.29 135.40 15.0 -3.30 120.18 16.0 -3.26 119.01 17.0 -4.05 124.98 18.0 -1.73 100.67 19.0 -1.33 80.83 20.0 -0.73 69.37 14 S21 S21 S12 Mag. Ang. Mag. -21.70 -31.07 -63.31 -12.00 -53.10 -58.86 -3.81 -78.32 -55.54 0.44 -95.55 -50.32 3.21 -111.10 -45.73 5.47 -123.97 -40.84 6.78 -137.58 -37 ...

Page 15

... Part Number Ordering Information Part Number Qty MGA-310G-TR1 3000 MGA-310G-BLK 100 Package Dimensions 1.13±0.05 Pin 1 1.10±0.05 Top View Notes: 1. All dimensions are in milimeters. 2. Dimensions are inclusive of plating. 3. Dimensions are exclusive of mold fl ash and metal burr refer to product code, X refer to month/year code. ...

Page 16

Device Orientation REEL USER FEED COVER TAPE DIRECTION Tape Dimensions 4.0 ± 0.10 4.0 ± 0.10 +0.30 8.00 -0.10 1.35 ± 0. Note: dimensions USER FEED DIRECTION CARRIER TAPE AX 2.00 ± 0.05 0.250 ± ...

Page 17

... For product information and a complete list of distributors, please go to our web site: Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2011 Avago Technologies. All rights reserved. AV02-2868EN - July 26, 2011 ...

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