TAS5548 datasheet(28/118 Pages) TI2

tên linh kiện	TAS5548

Giải thích chi tiết về linh kiện	TAS5548 8-Channel HD Compatible Audio Processor with ASRC and PWM Output

PDF	118 Pages

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nhà sản xuất	TI2 [Texas Instruments]

Trang chủ	https://www.ti.com

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PWM+

PWM-

PWM+

PWM-

> 0

Idle

Center of Negative Signal)

< 0

PWM

offset

(Center of Positive Signal)

PWM+

PWM–

Differential

Voltage

TAS5548

SLES270A – NOVEMBER 2012 – REVISED APRIL 2015

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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.

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