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LM4928 Scheda tecnica(PDF) 5 Page - Texas Instruments |
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LM4928 Scheda tecnica(HTML) 5 Page - Texas Instruments |
5 / 28 page LM4928 www.ti.com SNAS330D – DECEMBER 2005 – REVISED FEBRUARY 2006 Electrical Characteristics VDD = 5V (1) (2) The following specifications apply for VDD = 5V, AV = 1, and 8Ω load unless otherwise specified. Limits apply for TA = 25°C. LM4928 Units Symbol Parameter Conditions (Limits) Typical(3) Limit(4) IDD Quiescent Power Supply Current VIN = 0V, no load 4 VIN = 0V, RL = 8Ω 4 7.5 mA (max) (Both amplifiers) ISD Shutdown Current VSHUTDOWN = GND 0.1 1.0 µA (max) (Both amplifiers) Po Output Power THD = 1% (max); f = 1 kHz LM4928SD, RL = 4Ω (5) 1.8 RL = 8Ω 1.2 1.0 W THD = 10% (max); f = 1 kHz LM4928SD, RL = 4Ω (5) 2.2 RL = 8Ω 1.5 W THD+N Total Harmonic Distortion + Noise Po = 1 Wrms; f = 1kHz 0.04 % Vripple = 200mV sine p-p PSRR Power Supply Rejection Ratio f = 217Hz(6) 90 dB f = 1kHz(6) 90 CMRR Common-Mode Rejection Ratio f = 217Hz, VCM = 200mVpp 70 50 dB (min) VOS Output Offset VIN = 0V 4 18 mV (max) VSDIH Shutdown Voltage Input High 1.4 V VSDIL Shutdown Voltage Input Low 0.4 V SNR Signal-to-Noise Ratio PO = 1W, f = 1kHz 105 dB TWU Wake-up time from Shutdown Cbypass = 1 μF 13 ms (1) All voltages are measured with respect to the ground pin, unless otherwise specified. (2) 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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication of device performance. (3) Typicals are measured at 25°C and represent the parametric norm. (4) Limits are specified to Texas Instruments' AOQL (Average Outgoing Quality Level). (5) When driving 4 Ω loads from a 5V power supply, the LM4928SD must be mounted to a circuit board with the exposed-DAP area soldered down to at least 4in2 plane of 1oz, copper. (6) Inputs are AC terminated to GND. Copyright © 2005–2006, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM4928 |
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