mga-72543 Avago Technologies, mga-72543 Datasheet

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... ACPR requirements when the handset transmits the highest power. When transmitting lower power, the MGA- 72543 can be bypassed, saving the drawing current. The MGA-72543 is a GaAs MMIC, processed on Avago’s cost effective PHEMT (Pseudomorphic High Electron Mo- bility Transistor housed in the SOT343 (SC70 4-lead) package, and is part of the Avago Technologies CDMAd- vantage RF chipset. ...

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... MGA-72543 Absolute Maximum Ratings Symbol Parameter V Maximum Input to Output Voltage d V Maximum Input to Ground DC Voltage ref I Supply Current d P Power Dissipation [2, Input Power in T Junction Temperature j T Storage Temperature STG Thermal Resistance: [2] θ = 200°C/W jc Notes: 1. Operation of this device in excess of any of these limits may cause permanent damage. 2. Tcase = 25°C. Simplified Schematic Control Input & ...

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... 2.0 GHz f = 2.0 GHz f = 2.0 GHz Input Bias Tee Output ref Figure 2. MGA-72543 Test Circuit for S, Noise, and Power Parameters Over Frequency. Min. Typ. Max. V 0.37 0.51 0.65 dB 1.5 1.8 dB 13.5 14.4 15.5 dB 8.5 10.5 dB 2.5 µA 2 ...

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... MGA-72543 Typical Performance 25° Figure 2 test circuit (Input & Output presented to 50Ω). 2.2 2 1.8 1.6 1.4 2.7V 1.2 3.0V 3. FREQUENCY (GHz) Figure 3. Minimum Noise Figure vs. Frequency and Voltage. 2.2 - +85 C 1.8 1.6 1.4 1 FREQUENCY (GHz) Figure 6. Minimum Noise Figure vs. Frequency and Temperature. ...

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... MGA-72543 Typical Performance, continued, T erwise. All data as measured in Figure 2 test circuit (Input & Output presented to 50Ω). 2 3 FREQUENCY (GHz) Figure 12. Output Power Compression vs. Frequency and Voltage. 2.6 -40 C 2.4 +25 C +85 C 2.2 2.0 1.8 1.6 1.4 1.2 1 CURRENT (mA) d Figure 15 ...

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... MGA-72543 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.97 -13 0.19 74 0.20 0.91 -25 0.34 60 0.30 0.84 -34 0.46 49 0.40 0.77 -43 0.54 40 0.50 0.70 -50 0.60 33 0.60 0.65 -54 0.64 26 0.70 0.59 -60 0.67 20 0.80 0.54 -64 0.70 16 0.90 0.50 -67 0.71 12 1.00 0.47 -71 0.73 8 1.10 0.44 -73 0.74 4 1.20 0.41 -76 0.75 1 1.30 0.39 -78 0.76 -2 1.40 0.37 -80 0.76 -5 1.50 0.35 -82 0.77 -7 1.60 0.34 -84 0.77 -10 1.70 0.32 -86 0.77 -12 1 ...

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... MGA-72543 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.82 -9 4.01 0.50 0.78 -24 3.83 0.80 0.76 -34 3.70 0.90 0.75 -38 3.65 1.00 0.74 -41 3.61 1.10 0.73 -45 3.57 1.20 0.72 -48 3.52 1.30 0.72 -51 3.48 1.40 0.71 -54 3.45 1.50 0.70 -58 3.40 1.60 0.69 -61 3.36 1.70 0.69 -64 3.32 1.80 0.68 -67 3.29 1.90 0.67 -70 3.25 2.00 0.66 -73 3.22 2.10 0.66 -76 3.18 2.20 0.65 -79 3.15 2.30 0.64 -82 3.12 2.40 0.63 -85 3.08 2.50 0.63 -88 3.06 3.00 0.59 -103 2.92 3.50 0.56 -118 2.80 4.00 0.53 -138 2.65 4.50 0.51 -152 2.55 5.00 0.50 -169 2.42 5.50 0.49 176 2.30 6.00 0.49 160 2 ...

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... MGA-72543 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.79 -10 5.30 173 0.50 0.74 -26 5.04 160 0.80 0.72 -37 4.84 150 0.90 0.71 -40 4.77 146 1.00 0.70 -44 4.71 143 1.10 0.69 -47 4.64 140 1.20 0.68 -51 4.58 137 1.30 0.67 -54 4.51 134 1.40 0.66 -58 4.45 131 1.50 0.66 -61 4.39 128 1.60 0.65 -65 4.33 125 1.70 0.64 -68 4.27 122 1.80 0.63 -71 4.21 119 1.90 0.62 -74 4.15 116 2.00 0.61 -77 4.01 113 2.10 0.60 -81 4.04 111 2.20 0.59 -84 3.99 108 2 ...

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... MGA-72543 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.76 -11 6.35 173 0.50 0.71 -27 6.00 159 0.80 0.69 -38 5.74 148 0.90 0.67 -42 5.65 145 1.00 0.66 -46 5.57 142 1.10 0.65 -50 5.48 138 1.20 0.64 -54 5.39 135 1.30 0.64 -57 5.32 132 1.40 0.63 -60 5.23 129 1.50 0.62 -64 5.15 126 1.60 0.61 -67 5.06 123 1.70 0.60 -71 4.98 120 1.80 0.59 -74 4.90 117 1.90 0.58 -77 4.83 114 2.00 0.57 -81 4.75 111 2.10 0.56 -84 4.68 109 2.20 0.55 -87 4.61 106 2 ...

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... MGA-72543 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.75 -11 6.84 173 0.50 0.70 -28 6.45 159 0.80 0.68 -39 6.15 148 0.90 0.67 -43 6.05 144 1.00 0.65 -47 5.96 141 1.10 0.64 -51 5.87 138 1.20 0.63 -55 5.77 134 1.30 0.63 -58 5.68 131 1.40 0.62 -62 5.58 128 1.50 0.61 -65 5.49 125 1.60 0.60 -69 5.40 122 1.70 0.59 -72 5.31 119 1.80 0.58 -75 5.22 116 1.90 0.57 -79 5.13 113 2.00 0.56 -82 5.05 110 2.10 0.55 -85 4.96 108 2.20 0.54 -89 4.89 105 2 ...

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... MGA-72543 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.77 -10 6.38 0.50 0.72 -27 6.01 0.80 0.69 -39 5.75 0.90 0.68 -43 5.66 1.00 0.67 -47 5.58 1.10 0.66 -51 5.49 1.20 0.65 -54 5.40 1.30 0.65 -58 5.32 1.40 0.64 -62 5.23 1.50 0.63 -65 5.15 1.60 0.62 -69 5.07 1.70 0.61 -72 4.98 1.80 0.60 -75 4.90 1.90 0.59 -79 4.82 2.00 0.58 -82 4.75 2.10 0.57 -85 4.67 2.20 0.56 -89 4.60 2.30 0.55 -92 4.53 2.40 0.55 -95 4.47 2.50 0.54 -98 4.39 3.00 0.50 -114 4.09 3.50 0.47 -130 3.83 4.00 0.44 -147 3.59 4.50 0.43 -164 3.36 5.00 0.42 179 3.15 5.50 0.42 164 2.97 6.00 0.43 148 2 ...

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... MGA-72543 Typical Scattering Parameters (LNA/Switch Powered Off 25° 50Ω Freq (GHz) Mag. Ang. Mag. 0.8 0.80 0 0.097 1.2 0.75 0 0.122 1.6 0.71 0 0.141 2.0 0.69 0 0.157 2.4 0.66 0 0.171 2.8 0.65 171 0.184 3.2 0.64 157 0.195 3.6 0.64 144 0.204 4.0 0.63 132 0.211 4.4 0.63 121 0.216 4.8 0.63 112 0.218 5.2 0.64 103 0.224 5.6 0.64 94 0.227 6 ...

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... As in the case of low noise bias levels, the output of the MGA-72543 is already well matched to 50 É∂ and no ad- ditional matching is needed for most applications. When used for driver stage applications, the bypass switch feature of the MGA-72543 can be used to shut down the amplifier to conserve supply current during non-transmit periods. Supply current in the bypass state is nominally 2 µA. Biasing Biasing the MGA-72543 is similar to biasing a discrete GaAs FET ...

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... Gate Bias Using this method, Pins 1 and 4 of the amplifier are DC grounded and a negative bias voltage is applied to Pin 3 as shown in Figure 2. This method has the advantage of not only DC, but also RF grounding both of the ground pins of the MGA-72543. Direct RF grounding of the device’s ground pins results in slightly improved perfor- mance while decreasing potential instabilities, especially at higher frequencies. The disadvantage is that a negative supply voltage is required. OUTPUT INPUT & ref Figure 2 ...

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... A DC blocking capacitor at the output of the RFIC iso- lates the supply voltage from succeeding circuits. If the source resistor method of biasing is used, the RF input terminal of the MGA-72543 ground potential and a blocking capacitor is not required unless the input is connected directly to a preceding stage that has a DC voltage present Input Vref = -0 ...

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... The speed at which the MGA-72543 switches between states is extremely fast and will normally be limited by the time constants of external circuit components, such as the bias circuit and the bypass and blocking capacitors. The input and output of the MGA-72543 while in the bypass state are internally matched to 50 É∂. The input return loss can be further improved at 1900 MHz by adding a 2.7 to 3.9 nH series inductor added to the input. This is the same approximate value of inductor that is used to improve input match when the MGA-72543 is in the amplifier state ...

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... If the Rbias resistor is not located immediately adjacent to the MGA-72543 (as may be the case of dynamic control of the device ’s linearity), then a small series resistor (e.g., 10Ω) located near the ground terminal will help de-Q the connection from the MGA-72543 to an external current- setting circuit. 17 • PCB Materials FR-4 or G-10 type dielectric materials are typical choices for most low cost wireless applica- tions using single or multilayer printed circuit boards. The thickness of single- layer boards usually range from 0.020 to 0.031 inches. ...

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... The 2-pin, 0.100” centerline single row headers attached to the Vd and Vcon connections on the PCB provide a convenient means of making connections to the board using either a mating connector or clip leads. A Note on Performance Actual performance of the MGA-72543 as measured in an evaluation circuit may not exactly match the data sheet specifications. The circuit board material, passive components, RF bypasses, and connectors all introduce losses and parasitics that degrade device performance. ...

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... Statistical Parameters Several categories of parameters appear within the electrical specification portion of the MGA-72543 data sheet. Parameters may be described with values that are either “minimum or maximum, ” “typical, ” or “standard deviations. ” The values for parameters are based on comprehensive product characterization data, in which automated ...

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... Part Number Ordering Information No. of Part Number Devices MGA-72543-TR1 3000 MGA-72543-TR2 10000 MGA-72543-BLK 100 MGA-72543-TR1G 3000 MGA-72543-TR2G 10000 MGA-72543-BLKG 100 Note: For lead-free option, the part number will have the character “G” at the end. Package Dimensions SC-70 4L/SOT-343 1.30 (.051) BSC HE 1.15 (.045) BSC DIMENSIONS (mm) SYMBOL MIN. MAX. E 1.15 1.35 D 1.85 2. ...

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... 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 Limited in the United States and other countries. Data subject to change. Copyright © 2005-2008 Avago Technologies Limited. All rights reserved. Obsoletes 5989-4189EN ...