WM8945
Production Data
In device master mode, the LRCLK output resembles the frame pulse shown in Figure 24 and Figure
25. In device slave mode, Figure 26 and Figure 27, it is possible to use any length of frame pulse less
than 1/fs, providing the falling edge of the frame pulse occurs greater than one BCLK period before
the rising edge of the next frame pulse.
Figure 24 DSP/PCM Mode Audio Interface (mode A, LRCLK_INV=0, Master)
Figure 25 DSP/PCM Mode Audio Interface (mode B, LRCLK_INV=1, Master)
Figure 26 DSP/PCM Mode Audio Interface (mode A, LRCLK_INV=0, Slave)
PD, May 2011, Rev 4.1
68
w