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LM4938 bảng dữ liệu(PDF) 4 Page - Texas Instruments |
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LM4938 bảng dữ liệu(HTML) 4 Page - Texas Instruments |
4 / 34 page LM4938 SNAS245B – FEBRUARY 2005 – REVISED MAY 2013 www.ti.com Electrical Characteristics for Entire IC (1) (2) The following specifications apply for VDD = 5V unless otherwise noted. Limits apply for TA = 25°C. LM4938 Units Symbol Parameter Conditions (Limits) Typical(3) Limit(4) VDD Supply Voltage 2.7 V (min) 5.5 V (max) IDD Quiescent Power Supply Current VIN = 0V, IO = 0A 11 30 mA (max) ISD Shutdown Current Vshutdown = VDD 0.5 2.0 μA (max) VIH Headphone Sense High Input Voltage 4 V (min) VIL Headphone Sense Low Input Voltage 0.8 V (max) (1) All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical application as shown in Figure 1. (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). Datasheet min/max specification limits are specified by design, test, or statistical analysis. Electrical Characteristics for Volume Attenuators (1) (2) The following specifications apply for VDD = 5V. Limits apply for TA = 25°C. LM4938 Units Symbol Parameter Conditions (Limits) Typical(3) Limit(4) Gain accuracy with VDCVol = 5V, ±0.5 ±0.75 dB (max) No Load Gain accuracy with VDCVol < 0.5V, CRANGE Attenuator Range ±2 dB (max) No Load Attenuation with VDCVol = 0V dB (min) 89 75 (BM & SE) AM Mute Attenuation Vmute = 5V, Bridged Mode (BM) 89 78 dB (min) Vmute = 5V, Single-Ended Mode (SE) 78 dB (min) (1) All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical application as shown in Figure 1. (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). Datasheet min/max specification limits are specified by design, test, or statistical analysis. 4 Submit Documentation Feedback Copyright © 2005–2013, Texas Instruments Incorporated Product Folder Links: LM4938 |
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