WM8983GEFL/RV Wolfson Microelectronics, WM8983GEFL/RV Datasheet - Page 81

• Manufacturer Part Number: WM8983GEFL/RV
• Description: Audio CODECs Mbl Multimedia CODEC w/ 1W Speaker Driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8983GEFL/RV

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C

Production Data
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In Right Justified mode, the LSB is available on the last rising edge of BCLK before a LRC transition.
All other bits are transmitted before (MSB first). Depending on word length, BCLK frequency and
sample rate, there may be unused BCLK cycles after each LRC transition.
Figure 43 Right Justified Audio Interface (assuming n-bit word length)
In I
other bits up to the LSB are then transmitted in order. Depending on word length, BCLK frequency
and sample rate, there may be unused BCLK cycles between the LSB of one sample and the MSB of
the next.
Figure 44 I
In DSP/PCM mode, the left channel MSB is available on either the 1
rising 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 LRC pulse shown in Figure 45 and Figure
46. In device slave mode, Figure 47 and Figure 48, it is possible to use any length of LRC pulse less
than 1/fs, providing the falling edge of the LRC pulse occurs greater than one BCLK period before the
rising edge of the next LRC pulse.
Figure 45 DSP/PCM Mode Audio Interface (mode A, LRP=0, Master)
2
S mode, the MSB is available on the second rising edge of BCLK following a LRC transition. The
2
S Audio Interface (assuming n-bit word length)
st
PD Rev 4.0 November 2006
(mode B) or 2
WM8983
nd
(mode A)
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