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LM4917SD bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI) |
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LM4917SD bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI) |
4 / 18 page Absolute Maximum Ratings (Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 4.0V Storage Temperature −65˚C to +150˚C Input Voltage -0.3V to V DD + 0.3V Power Dissipation (Note 3) Internally Limited ESD Susceptibility (Note 4) 2000V ESD Susceptibility (Note 5) 200V Junction Temperature 150˚C Thermal Resistance θ JC (TSSOP) 40˚C/W θ JA (TSSOP) 109˚C/W Operating Ratings Temperature Range T MIN ≤ T A ≤ T MAX −40˚C ≤ T A ≤ 85˚C Supply Voltage (V DD) 1.4V ≤ V CC ≤ 3.6V Electrical Characteristics V DD =3V (Notes 1, 2) The following specifications apply for V DD = 3V, AV = 1, and 16 Ω load unless otherwise specified. Limits apply to T A = 25˚C. Symbol Parameter Conditions LM4917 Units (Limits) Typ (Note 6) Limit (Notes 7, 8) I DD Quiescent Power Supply Current V IN = 0V, IO = 0A, both channels enabled 11 20 mA (max) V IN = 0V, IO = 0A, one channel enabled 9mA I SD Shutdown Current V SD_LC =VSD_RC = GND 0.01 1 µA (max) V OS Output Offset Voltage R L =32 Ω 1 10 mV (max) P O Output Power THD+N = 1% (max); f = 1kHz, R L = 16 Ω 95 50 mW (min) THD+N = 1% (max); f = 1kHz, R L = 32 Ω 82 mW THD+N Total Harmonic Distortion + Noise P O = 50mW, f = 1kHz, RL =32 Ω (A-weighted) single channel 0.02 % PSRR Power Supply Rejection Ratio V RIPPLE = 200mV sine p-p, f = 1kHz f = 20kHz 70 55 dB SNR Signal-to-Noise Ratio R L =32 Ω,P OUT = 20mW, f = 1kHz 100 dB V IH Shutdown Input Voltage High V IH = 0.7*CPV DD V (min) V IL Shutdown Input Voltage Low V IL = 0.3*CPV DD V (max) T WU Wake Up Time From Shutdown 339 µs (max) X TALK Crosstalk R L =16 Ω,P O = 1.6mW, f = 1kHz 70 dB I L Input Leakage Current ±0.1 nA Note 1: All voltages are measured with respect to the GND pin unless otherwise specified. Note 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 that 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. Note 3: 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 number given in Absolute Maximum Ratings, whichever is lower. For the LM4917, see power de-rating currents for more information. Note 4: Human body model, 100pF discharged through a 1.5k Ω resistor. Note 5: Machine Model, 220pF-240pF discharged through all pins. Note 6: Typicals are measured at 25˚C and represent the parametric norm. Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Note 9: If the product is in shutdown mode and VDD exceeds 3.6V (to a max of 4V VDD) then most of the excess current will flow through the ESD protection circuits. If the source impedance limits the current to a max of 10mA, then the part will be protected. If the part is enabled when VDD is above 4V circuit performance will be curtailed or the part may be permanently damaged. Note 10: Human body model, 100pF discharged through a 1.5k Ω resistor. www.national.com 4 |
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