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TAS5822M Datasheet(PDF) 26 Page - Texas Instruments

Part # TAS5822M
Description  TAS5802 22W Stereo, Inductor-Less, Digital Input, Closed-Loop Class-D Audio Amplifier with 96Khz Extended Processing and Low Idle Power Dissipation
PDF  106 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TAS5822M Datasheet(HTML) 26 Page - Texas Instruments

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LRCK/FS
(Input)
SCLK
(Input)
DATA
(Input)
DATA
(Output)
0.5*DVDD
0.5*DVDD
0.5*DVDD
0.5*DVDD
tSCLKL
tSCLKH
tLS
tSL
tSCLK
ISU
IDH
IDFS
Figure 6-7. Serial Audio Timing - Target
SDA
SCL
START
Repeated
START
STOP
tD-SU
tLOW.
tSCL-R.
tHI.
tS-HD.
tBUF.
tSCL-F.
tD-HD
tRS-HD
tRS-SU
tSDA-R
tSDA-F
tP-SU
tSP
Figure 6-8. I2C Communication Timing - Target
6.3.5 Digital Audio Processing
TAS5802 DSP has a flexible process flows for different applications, refer to application note, TAS5815 and
TAS5802 Process Flows for details.
6.3.6 Class D Audio Amplifier
Following the digital clipper, the interpolated audio data is next sent to the Closed Loop Class-D amplifier, whose
first stage is Digital to PWM Conversion (DPC) block. In this block, the stereo audio data is translated into two
pairs of complimentary pulse width modulated (PWM) signals which are used to drive the outputs of the speaker
amplifier. Feedback loops around the DPC ensure constant gain across supply voltages, reduce distortion, and
increase immunity to power supply injected noise and distortion. The analog gain is also applied in the Class-D
amplifier section of the device. The switching rate of the amplifier is configurable via I2C interface. In this case,
the PWM switching frequency is a multiple of the sample rate.
TAS5802
SLASFB7A – NOVEMBER 2024 – REVISED AUGUST 2025
www.ti.com
26
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Product Folder Links: TAS5802



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