Datasheet

PRODUCT OVERVIEW
Reference
Multi-Bit
Delta-Sigma
Multi-Bit
Delta-Sigma
Digital
Filters
Audio
Serial
Port
Reset
Logic
Control
and
Status
MasterClock
andTiming
VINL+
VCOML
REFGNDL
VREFL
S/M
FMT0
FMT1
OWL0
OWL1
SUB0
SUB1
PCMEN
FS0
FS1
OVFL
OVFR
VCC1
VCC2
AGND
AGND
AGND
AGND
AGND
AGND
DGND
DGND
VDD
RST
LRCK
BCK
DATA
DF
HPFDL
HPFDR
VREFR
MCKI
REFGNDR
VCOMR
VINL-
VINR+
VINR-
DGND
DGND
DGND
DGND
PCM4220
www.ti.com ............................................................................................................................................. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009
The PCM4220 is a two-channel, multi-bit delta-sigma ( Δ Σ ) A/D converter. The 6-bit output from the delta-sigma
modulators is routed to the digital decimation filter, where the output of the filter provides linear PCM data. The
linear PCM data are output at the audio serial port interface for connection to external processing and logic
circuitry.
Figure 34 shows a simplified functional block diagram for the PCM4220, highlighting the interconnections
between the various functional blocks.
Figure 34. Functional Block Diagram
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Product Folder Link(s): PCM4220