Datasheet

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ELECTRICAL CHARACTERISTICS: AUDIO INTERFACE TIMING
PCM4222
SBAS399A – OCTOBER 2006 – REVISED MARCH 2007
All specifications are at T
A
= +25 ° C, VCC1 = VCC2 = +4.0V, and VDD = +3.3V, unless otherwise noted.
PCM4222
PARAMETER CONDITIONS MIN TYP MAX UNITS
AUDIO SERIAL PORT (PCM OUTPUT)
LRCK period, t
LRCKP
All data formats 4.62 125 µ s
LRCK high/low time, t
LRCKHL
0.45 × t
LRCKP
0.55 × t
LRCKP
µ s
Left-Justified and I
2
S data formats
LRCK high/low time, t
LRCKHL
TDM data formats 0.45 × t
LRCKP
0.55 × t
LRCKP
µ s
BCK period, t
BCKP
Left-Justified and I
2
S data formats
Normal sampling t
LRCKP
/128 ns
Double Speed sampling t
LRCKP
/64 ns
Quad Speed sampling t
LRCKP
/64 ns
BCK period, t
BCKP
TDM data formats
Normal sampling t
LRCKP
/256 ns
Double Speed sampling t
LRCKP
/128 ns
Quad Speed sampling t
LRCKP
/64 ns
BCK high/low time, t
BCKHL
All data formats 0.45 × t
BCKP
0.55 × t
BCKP
ns
Data output delay, t
DO
All data formats 10 ns
DSD OUTPUT
DSDCLK period, t
DSDCLKP
64x output rate 289 1954 ns
128x output rate 144.5 977 ns
DSDCLK high/low time, t
DSDCLKHL
0.45 × t
DSDCLKP
0.55 × t
DSDCLKP
ns
Data output delay, t
DSDO
10 ns
MULTI-BIT MODULATOR OUTPUT
MCKI period, t
MCKIP
72.3 488.3 ns
MCKI high/low time, t
MCKIHL
0.45 × t
MCKIP
0.55 × t
MCKIP
ns
WCKO period, t
WCKOP
144.5 977 ns
WCKO high/low time, t
WCKOHL
0.45 × t
WCKOP
0.55 × t
WCKOP
ns
Data output delay, t
MODO
15 ns
6
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