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LM4952 データシート(PDF) 4 Page - Texas Instruments |
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LM4952 データシート(HTML) 4 Page - Texas Instruments |
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4 / 25 page  LM4952 SNAS230A – AUGUST 2004 – REVISED MAY 2013 www.ti.com Electrical Characteristics VDD = 12V (1)(2) (continued) The following specifications apply for VDD = 12V, AV = 20dB (nominal), RL = 4Ω, and TA = 25°C unless otherwise noted. Symbol Parameter Conditions LM4952 Units (Limits) Typical(3) Limit(4)(5) THD+N Total Harmomic Distortion + Noise PO = 2.0Wrms, f = 1kHz 0.08 % εOS Output Noise A-Weighted Filter, VIN = 0V, 8 µV Input Referred XTALK Channel Separation fIN = 1kHz, PO = 1W, Input Referred RL = 8Ω 78 RL = 4Ω 72 dB PSRR Power Supply Rejection Ratio VRIPPLE = 200mVp-p, f = 1kHz, 89 80 dB (min) Input Referred IOL Output Current Limit VIN = 0V, RL = 500mΩ 5 A Electrical Characteristics for Volume Control (1) (2) The following specifications apply for VDD = 12V, AV = 20dB (nominal), and TA = 25°C unless otherwise noted. LM4952 Units Symbol Parameter Conditions (Limits) Typical(3) Limit(4) VOLmax Gain VDC-VOL = Full scale, No Load 20 dB VOLmin Gain VDC-VOL = +1LSB, No Load -46 dB AM Mute Attenuation VDC-VOL = 0V, No Load 75 63 dB (min) (1) All voltages are measured with respect to the GND 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 specify specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which specify specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not specified 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 ensured to AOQL (Average Outgoing Quality Level). External Components Description Refer to Figure 2. Components Functional Description This is the input coupling capacitor. It blocks DC voltage at the amplifier's inverting input. CIN and RIN create a 1. CIN highpass filter. The filter's cutoff frequency is fC = 1/(2πRINCIN). Refer to SELECTING EXTERNAL COMPONENTS, for an explanation of determining CIN's value. The supply bypass capacitor. Refer to POWER SUPPLY BYPASSING for information about properly placing, and 2. CS selecting the value of, this capacitor. This capacitor filters the half-supply voltage present on the BYPASS pin. Refer to SELECTING EXTERNAL 3. CBYPASS COMPONENTS for information about properly placing, and selecting the value of, this capacitor. 4 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated Product Folder Links: LM4952 |
同様の部品番号 - LM4952_15 |
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同様の説明 - LM4952_15 |
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