Datasheet

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L R L R L R L
L R L R L R L
L R L R L R L
L R L R L R L
L R L R L R L
L R L R L R L
L L L L
WCKO
VINL-
VINL+
Multi-Bit
Delta-Signma
Modultaor
128f
S
8kHz £ f
S
£ 54kHz
128f
S
Output
Port
Multi-Bit
Delta-Signma
Modultaor
MCKI
MOD1(LSB)
MOD2
MOD3
MOD4
MOD5
MOD6(MSB)
L L R L L
L L R L L
L L R L L
L L R L L
L L R L L
VINR+
VINR-
MCKI(256f )
S
WCKO(128f )
S
MOD1
MOD2
MOD3
MOD4
MOD5
MOD6
MODEN
PCM4222
SBAS399A – OCTOBER 2006 – REVISED MARCH 2007
Figure 47. Multi-Bit Modulator (MBM) Output Function and Interface Format
Table 10. Multi-bit Modulator (MBM) Mode Configuration
MODEN (pin 23) MULTI-BIT MODULATOR OUTPUT
LO MBM Mode Disabled. Pins 17–22, 25, and 26 are mapped for PCM and DSD mode operation
MBM Mode Enabled. Pins 17–22, 25, and 26 are mapped for MBM operation. PCM and DSD
HI
modes are disabled.
When driving capacitive loads greater than 30pF with the MBM data and clock outputs, it is recommended that
external buffers be utilized to ensure data and clock integrity at the receiving device(s).
Refer to the Electrical Characteristics : Audio Interface Timing table and Figure 4 for parameters and timing
information related to MBM operation.
27
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