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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TAS2781RYYR датащи(PDF) 9 Page - Texas Instruments |
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TAS2781RYYR датащи(HTML) 9 Page - Texas Instruments |
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9 / 90 page  TA = 25 °C, PVDDH = 18 V, PVDDL= 3.8 V, AVDD = 1.8 V, IOVDD =1.8 V, RL = 4Ω + 15µH, fin = 1 kHz, fs = 48 kHz, Gain = 21 dBV, SDZ = 1, NG_EN=0, EN_LLSR=0, PWR_MODE1, Measured filter free as in Section 7 (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DNR Dynamic Range Un-weighted, relative to 0 dBFS 70 dB THD+N Total Harmonic Distortion and Noise Pout = 15 W -61 dB Full Scale Input Current Measured at -6 dBFS. Re-scaled at 0 dBFS. 5 A Differential Mode Gain Pout = 1W, using a 40Hz - 40dBFS pilot tone 0.98 1.02 Frequency Response 20 Hz - 20 kHz -0.1 0.1 dB Group Delay 22 1/fs SPEAKER VOLTAGE SENSE Resolution 16 bits DNR Dynamic Range Un-weighted, relative 0 dBFS 73 dB THD+N Total Harmonic Distortion and Noise Pout = 15 W -68 dB Full Scale Input Voltage 16 VPK Differential Mode Gain Pout = 1W, using a 40Hz - 40dBFS pilot tone 0.98 1.02 Frequency Response 20 Hz - 20 kHz -0.1 0.1 dB Group Delay 22 1/fs SPEAKER VOLTAGE/CURRENT SENSE RATIO Gain Linearity Pout ≥ 40 mW to 0.1% THD+N, using a 40 Hz -40 dBFS pilot tone, PWR_MODE0 -1 1 % Gain Linearity Pout ≥ 80 mW to 0.1% THD+N, using a 40 Hz -40 dBFS pilot tone, PWR_MODE1 -1 1 % Gain error over temperature -20 °C to 70 °C, Pout = 1 W ±0.6 % Phase Error between V and I 300 ns PROTECTION CIRCUITRY Brownout Prevention Latency to First Attack BOP_SRC=1 400 µs Thermal Shutdown Temperature 145 °C Thermal Shutdown Retry OTE_RETRY=1 1.5 s Output Over Current Limit on PVDDH Output to Output, Output to GND or Output to PVDDH Short 5.5 6.7 A Output Over Current Limit on PVDDL Output to Output, Output to GND or Output to PVDDL Short 2 2.6 A PVDDL Undervoltage Lockout Threshold UVLO is asserted 2 V UVLO is de-asserted 2.16 AVDD Undervoltage Lockout Threshold UVLO is asserted 1.45 V UVLO is de-asserted 1.51 IOVDD Undervoltage Lockout Threshold UVLO is asserted 1.13 V UVLO is de-asserted 1.25 PVDDL Internal LDO Undervoltage Lockout Threshold UVLO is asserted 4.1 V CLASS-H CONTROLLER Look Ahead Time Sampling Rates 48 kHz and 96 kHz 4.8 ms BEEP PIN GENERATOR fIN SDZ Pin Input PWM signal frequency 25.6 192 kHz fIN NC_SCLK Pin Input PWM signal frequency 1.6 12 kHz TYPICAL CURRENT CONSUMPTION Hardware Shutdown SDZ = 0, PVDDH 0.05 µA SDZ = 0, PVDDL 0.01 SDZ = 0, AVDD 0.14 SDZ = 0, IOVDD 0.005 www.ti.com TAS2781 SLOSE86B – JULY 2022 – REVISED JULY 2023 Copyright © 2023 Texas Instruments Incorporated Submit Document Feedback 9 Product Folder Links: TAS2781 |
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