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LM4819MBD Datasheet(PDF) 4 Page - Texas Instruments |
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LM4819MBD Datasheet(HTML) 4 Page - Texas Instruments |
4 / 27 page LM4819, LM4819MBD SNAS133C – MAY 2004 – REVISED OCTOBER 2004 www.ti.com Electrical Characteristics VDD = 5V (1) (2) The following specifications apply for VDD = 5V, RL = 16Ω unless otherwise stated. Limits apply for TA = 25°C. LM4819 Units Parameter Test Conditions (Limits) Typical(3) Limit(4)(5) IDD Quiescent Power Supply Current VIN = 0V, Io = 0A 1.5 3.0 mA (max) ISD Shutdown Current VPIN1 = VDD (6) 1.0 5.0 µA (max) VSDIH Shutdown Voltage Input High 4.0 V (min) VSDIL Shutdown Voltage Input Low 1.0 V (max) VOS Output Offset Voltage VIN = 0V 5 50 mV (max) THD = 10%, fIN = 1kHz 350 mW PO Output Power THD = 10%, fIN = 1kHz, RL = 8Ω 300 mW THD+N Total Harmonic Distortion + Noise PO = 270mWRMS, AVD = 2, fIN = 1kHz 1 % (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 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's performance. (3) Typical specifications are specified at 25°C and represent the parametric norm. (4) Tested limits are guaranteed to TI's AOQL (Average Outgoing Quality Level). (5) Datasheet min/max specification limits are guaranteed by designs, test, or statistical analysis. (6) The shutdown pin (pin1) should be driven as close as possible to VDD for minimum current in Shutdown Mode. Electrical Characteristics VDD = 3V (1) (2) The following specifications apply for VDD = 3V and RL = 16Ω load unless otherwise stated. Limits apply to TA = 25°C. LM4819 Units Parameter Test Conditions (Limits) Typical(3) Limit(4)(5) IDD Quiescent Power Supply Current VIN = 0V, Io = 0A 1.0 3.0 mA (max) ISD Shutdown Current VPIN1 = VDD (6) 0.7 5.0 µA (max) VSDIH Shutdown Voltage Input High 2.4 V (min) VSDIL Shutdown Voltage Input Low 0.6 V (max) VOS Output Offset Voltage VIN = 0V 5 50 mV THD = 10%, fIN = 1kHz 110 mW PO Output Power THD = 10%, fIN = 1kHz, RL = 8Ω 90 mW THD+N Total Harmonic Distortion + Noise PO = 80mWRMS, AVD = 2, fIN = 1kHz 1 % (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 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's performance. (3) Typical specifications are specified at 25°C and represent the parametric norm. (4) Tested limits are guaranteed to TI's AOQL (Average Outgoing Quality Level). (5) Datasheet min/max specification limits are guaranteed by designs, test, or statistical analysis. (6) The shutdown pin (pin1) should be driven as close as possible to VDD for minimum current in Shutdown Mode. External Components Description (See Figure 1) Components Functional Description 1. Ri Combined with Rf, this inverting input resistor sets the closed-loop gain. Ri also forms a high pass filter with Ci at fc = 1/(2 πRiCi). 2. Ci This input coupling capacitor blocks DC voltage at the amplifier's terminals. Combined with Ri, it creates a high pass filter with Ri at fc = 1/(2πRiCi). Refer to the section, Proper Selection of External Components for an explanation of how to determine the value of Ci. 3. Rf Combined with Ri, this is the feedback resistor that sets the closed-loop gain: Av = 2(RF/Ri). 4 Submit Documentation Feedback Copyright © 2004, Texas Instruments Incorporated Product Folder Links: LM4819 LM4819MBD |
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