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LM4961 数据表(PDF) 3 Page - Texas Instruments |
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LM4961 数据表(HTML) 3 Page - Texas Instruments |
3 / 23 page LM4961, LM4961LQBD www.ti.com SNAS242J – AUGUST 2004 – REVISED MARCH 2007 Absolute Maximum Ratings (1) (2) (3) Supply Voltage (Vdd) 6.0V Amplifier Supply Voltage (V1) 9.5V Storage Temperature −65°C to +150°C Input Voltage −0.3V to VDD + 0.3V Power Dissipation(4) Internally limited ESD Susceptibility(5) 2000V ESD Susceptibility(6) 200V Junction Temperature 150°C Thermal Resistance θJA (WQFN) 66°C/W (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 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) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. (4) The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature, TA. The maximum allowable power dissipation is PDMAX = (TJMAX − TA) / θJA or the given in Absolute Maximum Ratings, whichever is lower. For the LM4961 typical application (shown in Figure 2) with VDD = 4.2V, RL = 2μF+30Ω mono BTL operation the maximum power dissipation is 232mW. θJA = 66°C/W. (5) Human body model, 100pF discharged through a 1.5k Ω resistor. (6) Machine Model, 220pF–240pF discharged through all pins. Operating Ratings Temperature Range TMIN ≤ TA ≤ TMAX −40°C ≤ TA ≤ +85°C Supply Voltage (VDD) 3.0V < VDD < 5.0V Amplifier Supply Voltage (V1) 2.7V < V1 < 9.0V Electrical Characteristics VDD = 4.2V The following specifications apply for VDD = 4.2V, AV-BTL = 26dB, RL = 2µF+30Ω, Cb = 1.0μF, Band-SW = VDD unless otherwise specified. Limits apply for TA = 25°C. Symbol Parameter Conditions LM4961 Units (Limits) Typical(1) Limit(2)(3) IDD Quiescent Power Supply Current VIN = 0V, No Load 7 14 mA (max) Band-SW = VDD Iddrcv Iq in receiver mode VIN = 0V, No Load 2 4 mA (max) Band-SW = GND ISD Shutdown Current VSHUTDOWN1 = VSHUTDOWN2 = GND 0.1 2.0 µA (max) Band-SW = GND (Note 9) VLH Logic High Threshold Voltage For Shutdown 1, Shutdown 2, and 1.5 V (min) Band-SW VLL Logic Low Threshold Voltage For Shutdown 1, Shutdown 2, and 0.4 V (max) Band-SW RPULLDOWN Pulldown Resistor For Shutdown 2 and Band-SW 70k 50k Ω (min) TSD Thermal Shutdown Temperature 125 °C (min) THD = 1%, f = 1kHz Vout Output Voltage Swing 15 14 Vp-p (min) RL = 2μF+30Ω Mono BTL THD+N Total Harmomic Distortion + Noise Vout = 14Vp-p, f = 1kHz 0.05 1.0 % (max) εOS Output Noise A-Weighted Filter, VIN = 0V (Note 10) 115 µV (1) Typicals are measured at 25°C and represent the parametric norm. (2) Limits are specified to AOQL (Average Outgoing Quality Level). (3) Datasheet min/max specification limits are specified by design, test, or statistical analysis. Copyright © 2004–2007, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM4961 LM4961LQBD |
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类似说明 - LM4961 |
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