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t
(BCH)
DATA
t
(BCL)
t
(LS)
t
(BCY)
t
(LH)
t
(DH)
t
(DS)
LRCK
BCK
T0010-03
PCM1780 , PCM1781 , PCM1782
SLES132B – MARCH 2005 – REVISED AUGUST 2006
PARAMETER MIN UNIT
t
(BCY)
BCK pulse cycle time 1/(32 f
S
), 1/(48 f
S
), 1/(64 f
S
)
(1)
t
(BCH)
BCK pulse duration, HIGH 35 ns
t
(BCL)
BCK pulse duration, LOW 35 ns
t
(LS)
LRCK setup time to BCK rising edge 10 ns
t
(LH)
LRCK hold time to BCK rising edge 10 ns
t
(DS)
DATA setup time 10 ns
t
(DH)
DATA hold time 10 ns
(1) f
S
is the sampling frequency (e.g., 44.1 kHz, 48 kHz, 96 kHz, etc.).
Figure 23. Audio Interface Timing
15
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