TAS5805MPWPR datasheet(22/88 Pages) TI1

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LRCLK/FS

SCLK

Audio data word = 16-bit, SCLK = 32, 64fs

DATA

MSB

LSB

15 16

MSB

LSB

Audio data word = 24-bit, SCLK = 64fs

DATA

23 24

MSB

LSB

23 24

MSB

LSB

Audio data word = 32-bit, SCLK = 64fs

DATA

31 32

MSB

LSB

31 32

MSB

LSB

1 tS

Left-channel

Right-channel

TAS5805M

SLASEH5 – MAY 2018

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Product Folder Links: TAS5805M

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Feature Description (continued)

Table 1. Audio Data Formats, Bit Depths and Clock Rates

FORMAT

DATA BITS

MAXIMUM LRCLK/FS FREQUENCY

(kHz)

SCLK RATE (fS)

I2S/LJ/RJ

32, 24, 20, 16

Up to 96

64, 32

TDM

32, 24, 20, 16

Up to 48

128,256,512

128,256

When any kind of clock errors including Out of Range, SCLK-FSYNC Ratio, or Clock halt are detected, the

device puts all channels into the Hi-Z state and reports Clock Error in Register 113 (Register Address 0x71).

When all audio clocks are within the expected ranges, the device automatically returns to the state it was in.

9.3.4 Serial Audio Port - Data Formats and Bit Depths

The device supports industry-standard audio data formats, including standard I2S, left-justified, right-justified and

TDM/DSP data. Data formats are selected via Register (P0-R51-D[5:4]). If the high width of LRCK/FS in

TDM/DSP mode is less than 8 cycles of SCK, the register (P0-R51-D[3:2]) should be set to 01. All formats

require binary two's complement, MSB-first audio data; up to 32-bit audio data is accepted. All the data formats,

word length and clock rate supported by this device are shown in Table 1. The data formats are detailed in

Figure 56 through Figure 60. The word length are selected via Register (P0-R51-D[1:0]). The offsets of data are

selected via Register (P0-R51-D[7]) and Register (P0-R52-D[7:0]). Default setting is I2S and 24 bit word length.

Figure 56. Left-Justified Audio Data Format

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