Datasheet

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15 kΩ
1 kΩ
470 pF
910
V
IN
L
V
REF
L
C
IN
PL C
IN
NL
1
4
Delta-Sigma
Modulator
(+)
V
REF
+
2.2 µF
4.7 µF
+
+
−
(−)
+
−
1 kΩ
S0011-04
PCM AUDIO INTERFACE
PCM3000
PCM3001
SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004
Figure 17. Analog Front-End (Single-Channel)
The four-wire digital audio interface for the PCM3000/3001 is on LRCIN (pin 16), BCKIN (pin 17), DIN (pin 18),
and DOUT (pin 19). The PCM3000/3001 can operate with seven different data formats. For the PCM3000, these
formats are selected through program register 3 in the software mode. For the PCM3001, data formats are
selected by pin-strapping the three format pins. Figure 18 , Figure 19 , Figure 20 and Figure 21 illustrate the audio
data input/output format. Figure 22 shows the audio data input/output timing. The PCM3000/3001 can accept 32,
48, or 64 bit clocks (BCKIN) during one clock of LRCIN. Only formats 0, 2, and 6 can be selected when 32 bit
clocks/LRCIN are applied.
17