WM8973LGEFL/V Wolfson Microelectronics, WM8973LGEFL/V Datasheet - Page 42

• Manufacturer Part Number: WM8973LGEFL/V
• Description: Audio CODECs Stereo Codec with H/P Spkr
• Manufacturer: Wolfson Microelectronics

Specifications of WM8973LGEFL/V

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8973L
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edge of BCLK (selectable by LRP) following a rising edge of LRC. Right channel data immediately
follows left channel data. Depending on word length, BCLK frequency and sample rate, there may be
unused BCLK cycles between the LSB of the right channel data and the next sample.
In device master mode, the LRC output will resemble the frame pulse shown in Figure 21 and Figure
22. In device slave mode, Figure 23 and Figure 24, 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 21 DSP/PCM Mode Audio Interface (mode A, LRP=0, Master)
Figure 22 DSP/PCM Mode Audio Interface (mode B, LRP=1, Master)
Figure 23 DSP/PCM Mode Audio Interface (mode A, LRP=0, Slave)
In DSP/PCM mode, the left channel MSB is available on either the 1
st
(mode B) or 2
PD, Rev 4.5, December 2011
nd
Production Data
(mode A) rising
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