WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 107
WM8990ECS/RV
Manufacturer Part Number
WM8990ECS/RV
Description
Audio CODECs Stereo CODEC w.Class AB/D speaker driver
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8990ECSRV.pdf
(172 pages)
Specifications of WM8990ECS/RV
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Production Data
AUDIO DATA FORMATS (NORMAL MODE)
In Right Justified mode, the LSB is available on the last rising edge of BCLK before a LRCLK
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 LRCLK transition.
Figure 66 Right Justified Audio Interface (assuming n-bit word length)
In Left Justified mode, the MSB is available on the first rising edge of BCLK following a LRCLK
transition. The 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 before each LRCLK transition.
Figure 67 Left Justified Audio Interface (assuming n-bit word length)
2
In I
S mode, the MSB is available on the second rising edge of BCLK following a LRCLK transition.
The 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.
PD, March 2009, Rev 4.0
w
107
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