WM8753LEB/RV WOLFSON [Wolfson Microelectronics plc], WM8753LEB/RV Datasheet - Page 55
WM8753LEB/RV
Manufacturer Part Number
WM8753LEB/RV
Description
HI FI AND TELEPHONY DUAL CODEC
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8753LEBRV.pdf
(87 pages)
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WM8753L
w
Figure 17 Right Justified Audio Interface (assuming n-bit word length)
Figure 18 I
Figure 19 DSP Mode Audio Interface (mode A, LRP/PLRP=0)
2
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.
In DSP mode, the left channel MSB is available on either the 1
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.
S Justified Audio Interface (assuming n-bit word length)
DACDAT /
ADCDAT /
DACDAT /
ADCDAT /
DACDAT /
ADCDAT /
BCLK /
VXCLK
BCLK /
VXCLK
VXDOUT
VXDOUT
VXDOUT
BCLK /
VXCLK
2
VXDIN /
VXDIN /
VXDIN /
LRC /
VXFS
LRC /
VXFS
LRC /
VXFS
S mode, the MSB is available on the second rising edge of BCLK following a LRC transition. The
1 BCLK / VXCLK
MSB
1
MSB
1 BCLK
1
2
2
3
Input Word Length (WL)
MSB
LEFT CHANNEL
1
3
LEFT CHANNEL
LEFT CHANNEL
2
3
n-2 n-1
n-2 n-1
LSB
n
n-2 n-1
n
1
LSB
2
LSB
n
3
1/fs
RIGHT CHANNEL
1/fs
1/fs
MSB
1 BCLK
1
st
2
(mode B) or 2
MSB
n-2 n-1
1
3
RIGHT CHANNEL
RIGHT CHANNEL
2
3
n
nd
n-2 n-1
AI Rev 3.1 June 2004
Advanced Information
(mode A) rising edge
n-2 n-1
n
LSB
LSB
n
55
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