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LM4867MTE Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM4867MTE Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 26 page Electrical Characteristics for Bridged-Mode Operation (Notes 3, 13) (Continued) The following specifications apply for V DD= 5V unless otherwise specified. Limits apply for TA= 25˚C. Symbol Parameter Conditions LM4867 Units (Limits) Typical Limit (Note 14) (Note 15) THD+N Total Harmonic Distortion+Noise 20Hz ≤ f ≤ 20kHz, A VD =2 LM4867MTE, R L =4Ω,PO =2W LM4867LQ, R L =4Ω,PO =2W LM4867, R L =8Ω,PO =1W 0.3 0.3 0.3 % % % PSRR Power Supply Rejection Ratio V DD = 5V, VRIPPLE = 200 mVRMS,RL =8Ω, C B = 2.2µF 67 dB X TALK Channel Separation f = 1 kHz, C B = 2.2µF 80 dB SNR Signal To Noise Ratio V DD = 5V, PO = 1.1W, RL =8Ω 97 dB Electrical Characteristics for Single-Ended Operation (Notes 3, 13) The following specifications apply for V DD= 5V unless otherwise specified. Limits apply for TA= 25˚C. Symbol Parameter Conditions LM4867 Units (Limits) Typical Limit (Note 14) (Note 15) V OS Output Offset Voltage V IN = 0V 5 50 mV (max) P O Output Power THD = 0.5%, f = 1kHz, R L =32Ω 85 75 mW (min) THD+N = 1%, f = 1kHz, R L =8Ω (Note 20) 180 mW THD+N = 1%, f = 1kHz, R L =16Ω THD+N = 10%, f = 1kHz, R L =32Ω THD+N = 10%, f = 1kHz, R L =16Ω THD+N = 10%, f = 1kHz, R L =32Ω 165 88 208 114 mW mW mW mW V OUT Output Voltage Swing THD = 0.05%, R L =5kΩ 1V P-P THD+N Total Harmonic Distortion+Noise A V = −1, PO = 75mW, 20 Hz ≤ f ≤ 20kHz, R L =32Ω 0.2 % PSRR Power Supply Rejection Ratio C B = 2.2µF, VRIPPLE = 200mVRMS, f = 1kHz 52 dB X TALK Channel Separation f = 1kHz, C B = 2.2µF 60 dB SNR Signal To Noise Ratio V DD = 5V, PO = 340mW, RL =8Ω 94 dB Note 3: 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 operates within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given. The typical value however, is a good indication of device performance. Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θ JA, and the ambient temperature TA. The maximum allowable power dissipation is PDMAX =(TJMAX −T A)/θJA. For the LM4867, TJMAX = 150˚C. For the θJAs for different packages, please see the Application Information section or the Absolute Maximum Ratings section. Note 5: Human body model, 100 pF discharged through a 1.5 k Ω resistor. Note 6: Machine model, 220 pF–240 pF discharged through all pins. Note 7: The given θJA is for an LM4867 packaged in an MXA20A with the Exposed-DAP soldered to an exposed 2in2 area of 1oz printed circuit board copper. Note 8: The given θJA is for an LM4867 packaged in an MXA20A with the Exposed-DAP soldered to an exposed 1in2 area of 1oz printed circuit board copper. Note 9: The given θJA is for an LM4867 packaged in an MXA20A with the Exposed-DAP not soldered to printed circuit board copper. Note 10: The given θJA is for an LM4867 packaged in an LQA24A with the Exposed-DAP soldered to an exposed 2in2 area of 1oz printed circuit board copper. Note 11: The given θJA is for an LM4867 packaged in an LQA24A with the Exposed-DAP soldered to an exposed 1in2 area of 1oz printed circuit board copper. Note 12: The given θJA is for an LM4867 packaged in an LQA24A with the Exposed-DAP not soldered to printed circuit board copper. Note 13: All voltages are measured with respect to the ground (GND) pins, unless otherwise specified. Note 14: Typicals are measured at 25˚C and represent the parametric norm. Note 15: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Note 16: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier. Note 17: Output power is measured at the device terminals. Note 18: When driving 3 Ω loads from a 5V supply, the LM4867LQ, LM4867MTE, or LM4867MTE-1 must be mounted to the circuit board and forced-air cooled (450 linear-feet per minute). Note 19: When driving 4 Ω loads from a 5V supply, the LM4867LQ, LM4867MTE or LM4867MTE-1 must be mounted to the circuit board. www.national.com 4 |
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