MAX9867 datasheet(27/55 Pages) MAXIM

27 / 55 page

Ultra-Low Power Stereo Audio Codec

______________________________________________________________________________________

BITS

FUNCTION

TDM

TDM Mode Select

0 = LRCLK signal polarity indicates left and right audio.

1 = LRCLK is a framing pulse that transitions polarity to indicate the start of a frame of audio data consisting

of multiple channels.

When operating in TDM mode, the left channel is output immediately following the frame sync pulse. If right-

channel data is being transmitted, the 2nd channel of data immediately follows the 1st channel data.

DMONO

Mono Playback Mode

0 = Stereo data input on SDIN is processed separately.

1 = Stereo data input on SDIN is mixed to a single channel and routed to both the left and right DAC.

BSEL

BCLK Select

Configures BCLK when operating in master mode. BSEL has no effect in slave mode. Set BSEL = 010, unless

sharing the bus with multiple devices:

000 = Off

001 = 64x LRCLK (192x internal clock divided by 3)

010 = 48x LRCLK (192x internal clock divided by 4)

011 = Reserved for future use.

100 = PCLK/2

101 = PCLK/4

110 = PCLK/8

111 = PCLK/16

Table 6. Digital Audio Interface Registers (continued)

MAX9867 Datasheet(PDF) 27 Page - Maxim Integrated Products