wm8953 Wolfson Microelectronics plc, wm8953 Datasheet - Page 59

• Manufacturer Part Number: wm8953
• Description: Low Power Stereo Adc With Pll And Tdm Interface Low Power Stereo Adc With Pll And Tdm Interface
• Manufacturer: Wolfson Microelectronics plc

WM8953
Production Data
AUDIO DATA FORMATS (NORMAL MODE)
In Right Justified mode, the LSB is available on the last rising edge of BCLK before a ADCLRC
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 ADCLRC transition.
Figure 35 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 ADCLRC
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 ADCLRC
transition.
Figure 36 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 ADCLRC 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.
Figure 37 I2S Justified Audio Interface (assuming n-bit word length)
PD, January 2009, Rev 4.0
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