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LM4925MM Fiches technique(PDF) 5 Page - National Semiconductor (TI) |
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LM4925MM Fiches technique(HTML) 5 Page - National Semiconductor (TI) |
5 / 15 page Electrical Characteristics V DD = 1.8V (Notes 1, 5) The following specifications apply for the circuit shown in Figure 2 for Single Ended Outputs (A V = 2.5V) and Figure 3 for BTL Outputs (A V-BTL = 2), unless otherwise specified. Limits apply for TA = 25˚C. Symbol Parameter Conditions LM4925 Units (Limits) Typical Limit (Note 6) (Note 7) I DD Quiescent Power Supply Current V IN = 0V, IO = 0A, RL = ∞ (Note 8) 0.9 1.6 mA (max) I SD Shutdown Current V SHUTDOWN = GND 0.05 1 µA (max) V OS Output Offset Voltage 2 10 mV (max) P O Output Power (Note 9) R L =8 Ω, BTL, Fig. 3, THD+N = 1%, f = 1kHz 120 90 mW (min) R L =16 Ω, Fig. 2, SE per Channel, THD+N = 1%, f = 1kHz 10 7 mW (min) THD+N Total Harmonic Distortion + Noise R L =8 Ω, BTL, P O = 50mW, Fig. 3, f = 1kHz 0.15 0.5 % (max) R L =16 Ω, SE, P O = 5mW per channel, Fig.2, f = 1kHz 0.1 V NO Output Voltage Noise 20Hz to 20kHz, A-weighted, Input Referred, Single Ended Output, Fig. 2 10 µV RMS Crosstalk R L =16 Ω, Fig. 2 58 dB PSRR Power Supply Rejection Ratio V RIPPLE = 200mVP-P sine wave C BYPASS = 4.7µF, RL =8 Ω f = 100Hz, BTL, Fig. 3 70 dB V RIPPLE = 200mVP-P sine wave C BYPASS = 4.7µF, RL =16 Ω f = 100Hz, SE, Fig. 2 68 dB V IH Control Logic High 1.5V ≤ V DD ≤ 3.6V 0.7V DD V (min) V IL Control Logic Low 1.5V ≤ V DD ≤ 3.6V 0.3V DD V (max) Mute Attenuation 1V PP Reference, R i = 20k, Rf = 50k 70 dB (min) Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance. Note 2: The maximum power dissipation is dictated by TJMAX, θJA, and the ambient temperature TA and must be derated at elevated temperatures. The maximum allowable power dissipation is PDMAX =(TJMAX −TA)/θJA. For the LM4925, TJMAX = 150˚C. For the θJAs, please see the Application Information section or the Absolute Maximum Ratings section. Note 3: Human body model, 100pF discharged through a 1.5k Ω resistor. Note 4: Machine model, 220pF–240pF discharged through all pins. Note 5: All voltages are measured with respect to the ground (GND) pins unless otherwise specified. Note 6: Typicals are measured at 25˚C and represent the parametric norm. Note 7: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Note 8: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier. Note 9: Output power is measured at the device terminals. www.national.com 5 |
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Description similaire - LM4925MM |
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