
PN6280_Hardware Design
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3.4 PCM Interface
PCM application
PN6280 provides a digital audio interface (PCM) that can be used as a PCM master device to transmit
digital voice signals. PN6280 only acts as a master device. PCM sync, PCM CLK are as output pins
and PCM sync output 16kHz synchronization signals, the PCM data support 8-bit or 16 bit data format.
We recommended codec chip is NAU8814YG. The codec chip crystal default use 1.8V power supply,
12M output active crystal. The power control pin of the PCM uses the PIN35 by default. And
NAU8814YG connected circuit from the device is shown in figure 3-7.
Figure 3-7 NAU8814YG peripheral Circuit
(
PN6280 as Main device
)