IC AMP MMIC LNA GAAS 3V SOT-343

MGA-71543-BLKG

Manufacturer Part NumberMGA-71543-BLKG
DescriptionIC AMP MMIC LNA GAAS 3V SOT-343
ManufacturerAvago Technologies US Inc.
TypeGeneral Purpose Amplifier
MGA-71543-BLKG datasheet
 


Specifications of MGA-71543-BLKG

P1db13.1dBmNoise Figure1.1dB ~ 1.45dB
Package / CaseSC-70-4, SC-82-4, SOT-323-4, SOT-343Current - Supply50mA ~ 60mA
Frequency100MHz ~ 6GHzGain14.4dB ~ 17.4dB
Rf TypeCDMA, TDMA, W-CDMATest Frequency2.01GHz
Voltage - Supply2.7V ~ 4.2VMounting StyleSMD/SMT
TechnologyLow Noise AmplifierNumber Of Channels1
Operating Frequency6000 MHzOperating Supply Voltage3 V
Supply Current50 mAMaximum Power Dissipation200 mW
Maximum Operating Temperature+ 150 CManufacturer's TypeLow Noise Amplifier
Frequency (max)6GHzOperating Supply Voltage (min)2.7V
Operating Supply Voltage (typ)3VOperating Supply Voltage (max)4.2V
Package TypeSOT-343MountingSurface Mount
Pin Count3 +TabNoise Figure (typ)1.1@6000MHzdB
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names516-1952
MGA-71543-BLKG
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MGA-71543
Low Noise Amplifier with
Mitigated Bypass Switch
Data Sheet
Description
Avago’s MGA-71543 is an
economical, easy-to-use GaAs
MMIC Low Noise Amplifier (LNA),
which is designed for adaptive
CDMA and W-CDMA receiver
systems. The MGA-71543 is part
of the Avago Technologies com-
plete CDMAdvantage RF chipset.
The MGA-71543 features a
minimum noise figure of 0.8 dB
and 16 dB available gain from a
single stage, feedback FET
amplifier. The input and output
are partially matched, and only a
simple series/shunt inductor
match is required to achieve low
noise figure and VSWR into 50Ω.
When set into the bypass mode,
both input and output are inter-
nally matched through a mitigative
circuit. This circuit draws no
current, yet duplicates the in and
out impedance of the LNA. This
allows the system user to have
minimum mismatch change from
LNA to bypass mode, which is
very important when the
MGA-71543 is used between
duplexers and/or filters.
The MGA-71543 offers an integrated
solution of LNA with adjustable
IIP3. The IIP3 can be fixed to a
desired current level for the
receiver’s linearity requirements.
The LNA has a bypass switch
function, which provides low
insertion loss at zero current. The
bypass mode also boosts dynamic
range when high level signal is
being received.
The MGA-71543 is designed for
CDMA and W-CDMA receiver
systems. The IP3, Gain, and
mitigative network are tailored to
these applications where filters
are used. Many CDMA systems
operate 20% LNA mode, 80%
bypass. With the bypass current
draw of zero and LNA of 10 mA,
the MGA-71543 allows an average
2 mA current.
The MGA-71543 is a GaAs MMIC,
processed on Avago’s cost effec-
tive PHEMT (Pseudomorphic High
Electron Mobility Transistor
Technology). It is housed in the
SOT343 (SC70 4-lead) package.
Attention:
Observe precautions for
handling electrostatic
sensitive devices.
ESD Machine Model (Class A)
ESD Human Body Model (Class 0)
Refer to Agilent Application Note A004R:
Electrostatic Discharge Damage and Control.
Features
• Lead-free Option Available
• Operating frequency:
0.1 GHz ~ 6.0 GHz
• Noise figure: 0.8 dB (NFmin)
• Gain: 16 dB
• Average Idd = 2mA in CDMA
handset
• Bypass switch on chip
Loss = -5.6 dB (Id < 5 µA)
IIP3 = +35 dBm
• Adjustable input IP3: 0 to +9 dBm
• 2.7 V to 4.2 V operation
Applications
• CDMA (IS-95, J-STD-008) Receiver
LNA
• Transmit Driver Amp
• W-CDMA Receiver LNA
• TDMA (IS-136) handsets
Surface Mount Package
SOT-343/4-lead SC70
Pin Connections and
Package Marking
3
1
INPUT
RF Gnd
& V
ref
& V
s
4
2
RF Gnd
OUTPUT
& V
& V
s
d

MGA-71543-BLKG Summary of contents

  • Page 1

    ... LNA mode, 80% bypass. With the bypass current draw of zero and LNA of 10 mA, the MGA-71543 allows an average 2 mA current. The MGA-71543 is a GaAs MMIC, processed on Avago’s cost effec- tive PHEMT (Pseudomorphic High Electron Mobility Transistor Technology housed in the SOT343 (SC70 4-lead) package. ...

  • Page 2

    ... Functional Block Diagram OUT Switch & Bias MGA-71543 Absolute Maximum Ratings Symbol Parameter V Maximum Input to Output Voltage d V Maximum Input to Ground DC Voltage c I Supply Current d [2] P Power Dissipation Input Power in T Junction Temperature j T Storage Temperature STG Product Consistency Distribution Charts 150 Cpk = 2 ...

  • Page 3

    ... MGA-71543 Electrical Specifications T = +25° 50Ω mA 3V, unless noted Symbol Parameter and Test Condition Vref test Vds = 2 test f = 2.01 GHz Vds - Vref) d Gain test f = 2.01 GHz Vds - Vref) d IIP3 test f = 2.01 GHz Vds - Vref) d Gain, Bypass f = 2.01 GHz ...

  • Page 4

    ... Figure 9. Associated Gain with Fmin vs. Frequency 500 MHz to 6 GHz Figure 12. S22 Impedance vs. Frequency. ( Input Bias Tee ref RF Output 56 pF Figure 5. MGA-71543 Test Circuit for S, Noise, and Power Parameters over Frequency 2.7V 3.0V 3. FREQUENCY (GHz) Figure 7. Associated Gain with Fmin vs. ...

  • Page 5

    ... MGA-71543 Typical Performance, continued T = 25° unless stated otherwise. Data vs. frequency was measured in Figure 5 test system and was optimized for each frequency with external tuners FREQUENCY (GHz) Figure 15. Input Third Order Intercept Point vs. Frequency and Current. 2.2 2.0 1.8 1.6 1 ...

  • Page 6

    ... MGA-71543 Typical Scattering Parameters T = 25° 0V -3.0V (bypass mode ref d Freq (GHz) Mag. Ang. Mag. Ang. 0.1 0.968 -4.5 0.021 41.1 0.2 0.961 -8.4 0.039 70.5 0.3 0.951 -11.4 0.065 73.7 0.4 0.947 -14.8 0.09 70.9 0.5 0.937 -18.1 0.114 65.7 ...

  • Page 7

    ... MGA-71543 Typical Scattering Parameters and Noise Parameters T = 25° 2. -0. ref Freq (GHz) Mag. Ang. Mag. 0.3 0.927 -10.1 2.945 0.5 0.921 -16.4 2.939 0.7 0.915 -22.7 2.907 0.9 0.909 -28.8 2.871 1.1 0.899 -34.8 2.826 1.3 0.891 -40.5 2.783 1.5 ...

  • Page 8

    ... MGA-71543 Typical Scattering Parameters and Noise Parameters T = 25° ref d Freq (GHz) Mag. Ang. Mag. Ang. 0.3 0.911 -11 4.164 170.2 0.5 0.904 -17.7 4.148 163.3 0.7 0.896 -24.5 4.094 157.1 0.9 0.887 -31.2 4.029 151.1 1.1 0.875 -37.5 3.953 145.2 1 ...

  • Page 9

    ... MGA-71543 Typical Scattering Parameters and Noise Parameters T = 25° ref d Freq (GHz) Mag. Ang. Mag. Ang. 0.3 0.9 -11.5 5.023 169.8 0.5 0.892 -18.6 4.993 162.7 0.7 0.884 -25.7 4.919 156.3 0.9 0.873 -32.7 4.83 150 1.1 0.859 -39.4 4.728 143 ...

  • Page 10

    ... MGA-71543 Typical Scattering Parameters and Noise Parameters T = 25° ref d Freq (GHz) Mag. Ang. Mag. Ang. 0.3 0.889 -12.1 5.952 169.3 0.5 0.88 -19.5 5.901 162 0.7 0.87 -27 5.803 155.3 0.9 0.858 -34.3 5.684 148.8 1.1 0.842 -41.2 5.548 142.5 1 ...

  • Page 11

    ... MGA-71543 Typical Scattering Parameters and Noise Parameters T = 25° ref d Freq (GHz) Mag. Ang. Mag. 0.3 0.889 -12.3 6.174 0.5 0.88 -19.8 6.117 0.7 0.87 -27.4 6.012 0.9 0.857 -34.9 5.885 1.1 0.841 -41.9 5.74 1.3 0.823 -48.7 5.589 1.5 ...

  • Page 12

    ... Part Number Devices MGA-71543-TR1 3000 MGA-71543-TR2 10000 MGA-71543-BLK 100 MGA-71543-TR1G 3000 MGA-71543-TR2G 10000 MGA-71543-BLKG 100 Note: For lead-free option, the part number will have the character “G” at the end. Package Dimensions Outline 43 SOT-343 (SC70 4-lead) 1.30 (.051) BSC HE 1.15 (.045) BSC b1 ...

  • Page 13

    Device Orientation REEL CARRIER TAPE USER FEED DIRECTION COVER TAPE Tape Dimensions For Outline DESCRIPTION CAVITY LENGTH WIDTH DEPTH PITCH BOTTOM HOLE DIAMETER PERFORATION DIAMETER PITCH POSITION CARRIER TAPE WIDTH THICKNESS COVER TAPE WIDTH TAPE ...

  • Page 14

    ... LNA and 80% bypass mode. For example, with the bypass draw of zero and LNA of 10 mA, the MGA-71543 allows an average of only 2 mA current. The MGA-71543 is a GaAs MMIC, processed on Avago’s cost effec- tive PHEMT (Pseudomorphic High Electron Mobility Transistor Technology housed in the SOT343 (SC70 4-lead) package ...

  • Page 15

    ... For applications in which input power levels vary over a wide range, it may be useful to dynami- cally adapt the bias of the MGA-71543 to match the signal level. A sensor senses the signal level at some point in the system (usually in the baseband circuitry) and automatically adjusts the bias current of the amplifier accord- ingly ...

  • Page 16

    ... If a lower current is drawn, the gain of the amplifier is significantly reduced and the performance will degrade. If the device current is set to zero, the MGA-71543 is switched into a bypass mode in which the signal is routed around the amplifier with a loss of about 5.6 dB. The simplest way of switching the ...

  • Page 17

    ... For low noise amplifier application, the LNA is typically biased mA. The MGA-71543 is a conditionally stable device, therefore, the proper input and output loads must be presented in addition to properly RF grounding the device. Please refer to the stability section for tips on preventing oscillation ...

  • Page 18

    ... Design for Stability The main potential for oscillation with the MGA-71543 is improper grounding and/or improper RF bypass capacitors. Any device with gain can be made to oscillate if feedback is added. Proper grounding may be achieved by minimizing inductance paths to the ground plane ...

  • Page 19

    ... To assist designers in optimizing not only the immediate amplifier circuit using the MGA-71543, but to also evaluate and optimize tradeoffs that affect a complete wireless system, the standard deviation (σ) is provided for many of the Electrical Specifica- tion parameters (at 25° ...

  • Page 20

    Demonstration Board Source unstable G = 18.8 dB Load unstable region 16.8 dB Load stable region ...

  • Page 21

    ... OUT REV 2 Part Number 800 MHz [1] DUT MGA-71543 8.2 pF 100 pF 2.7 pF 0.01 µ TOKO LL1005 33 nH TOKO LL1005 33 nH TOKO LL1005 51Ω 115Ω — / LL1608-FH or 1005-FH 60Ω Package SOT-343 (4 lead SC-70 package) Size 0402 Size 0402 Size 0402 Size 0603 or 0402 ...

  • Page 22

    ... MGA-71543 Figure 24. System Level Overview of MGA-71543 for Handset Designers. These are the actual necessary components. The other connectors and board space are only for production. blue2_lna rev2.1 L25 C12 C36 R37 C38 U2 C47 L7 C44 C9 R38 R25 C37 R24 33.1 mm R21 C8 1.303 in ...

  • Page 23

    ... Not used Note 1: Device under Test Table 2. Component Values for 1900 MHz Amplifier on Smaller Board. References 1. Application note RLM020199, “Designing with the MGA-72543 RFIC Amplifier/Bypass Switch”. 2. G.D.Vendelin, A.M.Pavio and U.L.Rhode, “Microwave Circuit Design Using Linear and Nonlinear Techniques”. 23 Part Number ...

  • Page 24

    ... R38 R25 C37 R24 R21 C8 R20 C36 R38 C12 L5 C47 C37 C44 R25 R24 R21 R16 (0Ω Jumper) FDG6303N Selects current set by R21 Selects current set by R20 MGA-71543 RF OUT Switch & Bias Control SC70 FDG6303N Dual N-channel, Digital FET OUT Volt ...