MGA-725M4-TR2 Avago Technologies US Inc., MGA-725M4-TR2 Datasheet
MGA-725M4-TR2
Specifications of MGA-725M4-TR2
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MGA-725M4-TR2 Summary of contents
Page 1
... GaAs MMIC Low Noise Amplifier (LNA), which is designed for an adaptive CDMA receiver LNA and adaptive CDMA transmit driver amplifier. The MGA-725M4 features a typical noise figure of 1.4 dB and 14.4 dB associated gain from a single stage, feedback FET amplifier. The output is internally matched to 50Ω. ...
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... MGA-725M4 Absolute Maximum Ratings Symbol Parameter V Maximum Input to Output Voltage d V Maximum Input to Ground DC Voltage gs I Supply Current d P Power Dissipation [1, Input Power in T Junction Temperature j T Storage Temperature STG Electrical Specifications +25° Symbol Parameter and Test Condition V test f = 2.0 GHz ...
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... Input Output FREQUENCY (GHz) Figure 9. LNA on (Switch off) VSWR vs. Frequency Bias Tee Input Output 47 pF Figure 2. MGA-725M4 50Ω Test Circuit for S, Noise, and Power Parameters unless stated otherwise. All data as measured in Figure 2 FREQUENCY (GHz) Figure 4. Gain vs. Frequency and Voltage. 18 ...
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... MGA-725M4 Typical Performance, continued Frequency = 2.0 GHz 25° 50Ω test system (input and output presented to 50Ω). 2.7V 2 3.0V 3. FREQUENCY (GHz) Figure 12. Output Power Compression vs. Frequency and Voltage -40 C + CURRENT (mA) d Figure 15. Noise Figure vs. Current and Temperature - CURRENT (mA) d Figure 18 ...
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... MGA-725M4 Typical Scattering Parameters: Bypass Mode T = 25° 50Ω (test circuit of Figure Freq (GHz) Mag. Ang. Mag. Ang. 0.1 0.991 -11.1 0.175 74.9 0.5 0.741 -44.1 0.592 37.9 0.8 0.580 -5.8 0.710 22.8 0.9 0.536 -61.8 0.733 18.9 1.0 0.498 -64 ...
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... MGA-725M4 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω (test circuit of Figure Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.83 -8 4.17 175 0.50 0.73 -24 4.32 164 0.80 0.71 -35 4.19 156 0.90 0.71 -39 4.14 153 1.00 0.69 -42 4.09 151 1 ...
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... MGA-725M4 Typical Scattering Parameters and Noise Parameters T = 25° 3.0V mA 50Ω (test circuit of Figure Freq (GHz) Mag. Ang. Mag. Ang. 0.10 0.79 -9 5.57 174 0.50 0.68 -26 5.68 163 0.80 0.65 -39 5.47 154 0.90 0.66 -43 5.40 152 1.00 0.64 -46 5.33 149 1 ...
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... MGA-725M4 Typical Scattering Parameters and Noise Parameters T = 25° 50Ω (test circuit of Figure Freq (GHz) Mag. Ang. Mag. Ang. 0.1 0.75 -11 6.78 174 0.5 0.62 -28 6.81 162 0.8 0.60 -42 6.53 153 0.9 0.60 -46 6.44 151 1.0 0.59 -50 6.34 148 1.1 ...
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... MGA-725M4 Typical Scattering Parameters and Noise Parameters T = 25° 50Ω (test circuit of Figure Freq (GHz) Mag. Ang. Mag. Ang. 0.1 0.75 -11 7.39 173 0.5 0.62 -29 7.38 162 0.8 0.60 -43 7.06 153 0.9 0.60 -47 6.95 150 1.0 0.59 -51 6.84 147 1.1 ...
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... MGA-725M4 Typical Scattering Parameters and Noise Parameters T = 25° 50Ω (test circuit of Figure Freq (GHz) Mag. Ang. Mag. Ang. 0.1 0.76 -11 7.09 174 0.5 0.64 -29 7.08 162 0.8 0.61 -42 6.78 153 0.9 0.62 -47 6.69 151 1.0 0.60 -50 6.58 148 1.1 ...
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... Ordering Information Part Number Devices Per Container MGA-725M4-TR1 3000 MGA-725M4-TR2 10000 MGA-725M4-BLK 100 MiniPak Package Outline Drawing 1.44 (0.057) 1.40 (0.055) 1.20 (0.047) 1.16 (0.046) 0.70 (0.028 Ang ...
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Package 4T — MiniPak 1412 Device Orientation REEL 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 ...
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... When used for driver stage applications, the bypass switch feature of the MGA-725M4 can be used to shut down the amplifier to conserve supply current during non-transmit period. Supply current in the bypass stage is nominally 2 mA. ...
Page 14
... RF bypassed. Device current determined by the value d of the source resistance between either Pin 1 and bias Pin 3 of the MGA-725M4 and DC ground. Pin 1 and Pin 3 are connected internally in the RFIC. Maximum device current (approximately 65 mA) occurs for R 14 INPUT 2 1 Figure 4 ...
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... A DC blocking capacitor at the output of the RFIC isolates the supply voltage from succeeding circuits. If the source resistor method of biasing is used, the RF input terminal d of the MGA-725M4 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. ...
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... PCB. PCB Layout and Grounding When laying out a printed circuit board for the MGA- 725M4, several points should be considered. Of primary concern is the RF bypassing of the ground terminals when the device is biased using the source resistor method ...
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... An example evaluation PCB layout for the MGA-725M4 is shown in Figure 12. This evaluation circuit is designed for operation from a +3-volts supply and includes provision for a 2-bit DIP switch to set the state of the MGA-725M4. For evaluation purposes, the 2-bit switch is used to set the device to either of four states: (1) bypass mode-switch bypasses the amplifier, (2) low noise amplifier mode– ...
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... Hints and Troubleshooting R3 Preventing Oscillation Stability of the MGA-725M4 is dependent on having very bias good RF grounding. Inadequate device grounding or Vcon poor PCB layout techniques could cause the device to be potentially unstable. Even though a design may be unconditionally stable (K>1 and B1> ...
Page 19
... Typical values are intended to be used as a basis for electrical design. To assist designers in optimizing not only the immediate amplifier circuit using the MGA-725M4, but to also evaluate and optimize trade-offs that affect a complete wireless system, the standard deviation (σ) is provided for many of the Electrical Specification parameters (at 25° ...