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TAS5548DCAR Datasheet(PDF) 28 Page - Texas Instruments

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Part # TAS5548DCAR
Description  8-Channel HD Compatible Audio Processor
PDF  116 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TAS5548DCAR Datasheet(HTML) 28 Page - Texas Instruments

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PWM+
PWM-
PWM+
PWM-
> 0
Idle
Center of Negative Signal)
< 0
PWM
+
PWM
-
offset
(Center of Positive Signal)
PWM+
PWM–
Differential
Voltage
TAS5548
SLES270A – NOVEMBER 2012 – REVISED APRIL 2015
www.ti.com
Figure 21. BD Modulation
Figure 22. Ternary Modulation
7.4.9 TAS5548 DAP Architecture Diagrams
The TAS5548 defaults to processing audio data (post ASRC) at double rate. In the TAS5548, this is set to 96kHz
(by the external XTAL used). . Additional support is provided for native 192kHz support. 4ch of audio processing
is available in 192kHz native processing mode.
Figure 23 shows the TAS5548 DAP architecture for fS ≤ 96 kHz. The bass management architecture is shown in
channels 1, 2, 7 and 8. The I2C registers are shown to help the designer configure the device.
Figure 24 shows the architecture for fS = 176.4 kHz or fS = 192 kHz. Note that only channels 1, 2, 7 and 8
contain limited features. Channels 3–6 are pass-through except for volume controls.
Figure 25 shows TAS5548 detailed channel processing. The output mixer is 8×2 for channels 1–6 and 8×3 for
channels 7 and 8.
28
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Product Folder Links: TAS5548



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