AK4436 Datasheet, PDF (25/63 Pages) Asahi Kasei Microsystems – 108dB 768kHz 32bit 6-Channel Audio DAC

[AK4436]
■ Audio Interface Format
TDM1-0 bits, DIF2-0 bits, SDS2-0 bits, TDM1-0 pins and DIF pin settings should not be changed during
operation.
[1] PCM Mode
Normal Mode (TDM1-0 bit=“00”)
Six channels audio data is shifted in via the SDTI1-3 pins using BICK and LRCK inputs. Data is selected
by SDS2-0 bits. Six data formats are supported and selected by the DIF2-0 bits as shown in Table 9. In all
formats the serial data is MSB first, 2's compliment format and is latched on the rising edge of BICK. Mode
2 can be used in 16-bit and 20-bit MSB justified and Mode 6 can be used in 16-bit, 20-bit and 24-bit MSB
justified formats by zeroing the unused LSBs.
TDM128 Mode (TDM1-0 bit=“01”)
Eight channels audio data is shifted in via the SDTI1-2 pins using BICK and LRCK inputs. Data is selected
by SDS2-0 bits. The data input to the SDTI3 pin is ignored. BICK is fixed to 128fs. Six data formats are
supported and selected by the DIF2-0 bits as shown in Table 9. In all formats the serial data is MSB first,
2's compliment format and is latched on the rising edge of BICK.
TDM256 Mode (TDM1-0 bit=“10”)
Sixteen channels audio data is shifted in via the SDTI1-2 pins using BICK and LRCK inputs. Data is
selected by SDS2-0 bits. The data input to the SDTI3 pin is ignored. BICK is fixed to 256fs. Six data
formats are supported and selected by the DIF2-0 bits as shown in Table 9. In all formats the serial data is
MSB first, 2's compliment format and is latched on the rising edge of BICK.
TDM512 Mode (TDM1-0 bit=“11”)
Sixteen channels audio data is shifted in via the SDTI1 pin using BICK and LRCK inputs. Data is selected
by SDS2-0 bits. The data input to the SDTI2-3 pins are ignored. BICK is fixed to 512fs. Six data formats
are supported and selected by the DIF2-0 bits as shown in Table 9. In all formats the serial data is MSB
first, 2's compliment format and is latched on the rising edge of BICK.
016001934-E-00
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2016/03