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ES DVD Players 2005, Version 4.0 Page 34
Multi level D/A conversion
Multi level D/A conversion
1
1
1
+
1
1
1
…
N
N= 64 (for spec 1)
The SA DAC uses multi-level D/A conversion, illustrated here. Like
multi-bit conversion, the multi-level system uses many switches
operating in parallel. Unlike multi-bit designs, the value of all switches is
identical—a binary 1.
Multi level D/A conversion
Multi level D/A conversion
1 / 64 fs
0
1 / 64 fs1 / 64 fs
Output
64
time
The output of the multi level D/A converter varies from 0 to 64,
depending on the number of switches set to On for each sample.