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LM4923LQBD データシート(PDF) 5 Page - Texas Instruments |
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LM4923LQBD データシート(HTML) 5 Page - Texas Instruments |
5 / 23 page LM4923, LM4923LQBD www.ti.com SNAS211D – JULY 2004 – REVISED FEBRUARY 2009 Electrical Characteristics VDD = 3V (1) (2) The following specifications apply for VDD = 3V, AV = 1, and 8Ω load unless otherwise specified. Limits apply for TA = 25°C. LM4923 Units Symbol Parameter Conditions (Limits) Typical(3) Limit(4) IDD Quiescent Power Supply Current VIN = 0V, no load 3 5.5 mA (max) VIN = 0V, RL = 8Ω 3 5.5 ISD Shutdown Current VSHUTDOWN = GND 0.1 1 µA (max) Po Output Power THD = 1% (max); f = 1kHz 0.375 W LM4923, RL = 8Ω THD+N Total Harmonic Distortion+Noise Po = 0.25Wrms; f = 1kHz 0.02 % PSRR Power Supply Rejection Ratio Vripple = 200mV sine p-p f = 217Hz (5) 85 f = 1kHz (5) 85 73 CMRR Common-Mode Rejection Ratio f = 217Hz 50 dB VCM = 200mVpp VOS Output Offset VIN = 0V 4 mV VSDIH Shutdown Voltage Input High 0.8 V VSDIL Shutdown Voltage Input Low 0.6 V (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 performance. (3) Typicals are measured at 25°C and represent the parametric norm. (4) Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. (5) 10 Ω terminated input. EXTERNAL COMPONENTS DESCRIPTION (Figure 3) Components Functional Description 1. Ri Inverting input resistance which sets the closed-loop gain in conjunction with Rf. 2. Rf Feedback resistance which sets the closed-loop gain in conjunction with Ri. 3. CS Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing section for information concerning proper placement and selection of the supply bypass capacitor. 4. CB Bypass pin capacitor which provides half-supply filtering. Refer to the section, Proper Selection of External Components, for information concerning proper placement and selection of CB. Copyright © 2004–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM4923 LM4923LQBD |
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同様の説明 - LM4923LQBD |
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