Datasheet

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PCM AUDIO INTERFACE
LRCK
Right-ChannelLeft-Channel
BCK
DIN
MSB LSB
22 23 24321
T0016-15
MSB LSB
22 23 24321
DOUT
MSB LSB
22 23 24321
MSB LSB
22 23 24321
DOUTS
Sub-Frame Sub-Frame Sub-Frame
PCM3052A
SLES160 – NOVEMBER 2005
Digital audio data is interfaced to the PCM3052A on LRCK (pin 10), BCK (pin 11), DIN (pin 12), DOUT (pin 13),
and DOUTS (pin 14). The PCM3052A can accept 24-bit I
2
S format only. In case of AC-3 type output data for
DOUTS, bits 17 to 24 of DIN must be held LOW. See the Digital Audio Interface Transmitter (DIT) section of this
data sheet.
Table 2. Audio Data Format
DATA FORMAT
24-bit, MSB-first, I
2
S
The PCM3052A accepts only 64 clocks of BCK during one clock of LRCK. Figure 46 and Figure 47 illustrate
audio data input/output format and timing.
Figure 46. Audio Data Input/Output Format
25