Output Source Selection
The output source for Multi-Channel PCM Output (the Main output port and MPIO_B) is selected by a register.
describes the relationship between the output source and the register (MCHRSRC) setting.
Table 29. Multi-Channel PCM Output Source and Register Setting
OUTPUT SOURCE SELECT
(1) The Main OUT data source is discussed in the
recovered clock and data, or the ADC DATA and the ADC clock source.
DSD Input Mode
The PCM9211 can also be used to suppress the jitter of the DSCKI signals, typically generated by an HDMI
receiver. DSD signals (DBCKI, DSDRI, DSDLI) are routed to the Main Port as DBCKO, DSDRO, and DSDLO,
The DIT works with DSCKI for SCK, DBCKI for BCK, internally-created LRCK, DBCKI divided by 64, and '0' data
MOLRMTEN (Register 6Ah) can be used to mute/unmute DSDRO from the LRCK port. When MOLRMTEN is set
to '1', mute/unmute of DSDRO from LRCK is available by MODMUT = 1/0.
summarizes the DSD input mode configuration.
MPIO GROUP / PIN
Copyright © 2010, Texas Instruments Incorporated
'00' or '10'
section of this data sheet. It can either be the DIR
illustrates the DSD format.
Table 30. DSD Input Mode Summary
SCK input (256f
DBCK input for DSD format (64f
R-channel DSD data input for DSD format
L-channel DSD data input for DSD format
SCK output generated by DIR from DIT output
DBCK output for DSD format (the same signal as DBCKI)
R-channel DSD data output for DSD format (the same signal as DSDRI)
L-channel DSD data output for DSD format(the same signal as DSDLI)
Figure 34. DSD Format
Product Folder Link(s):
SBAS495 – JUNE 2010
'01' or '11'
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