WM8753 Wolfson Microelectronics plc, WM8753 Datasheet - Page 54

• Manufacturer Part Number: WM8753
• Description: HI FI AND TELEPHONY DUAL CODEC
• Manufacturer: Wolfson Microelectronics plc

Advanced Information
w
Figure 16 Left Justified Audio Interface (assuming n-bit word length)
AUDIO DATA FORMATS – AUDIO INTERFACE AND VOICE INTERFACE
In Left Justified mode, the MSB is available on the first rising edge of BCLK following an LRC
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 LRC transition.
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.
DACDAT /
ADCDAT /
BCLK /
VXCLK
VXDOUT
VXDIN /
LRC /
VXFS
Figure 15a Master Mode
MSB
1
2
3
LEFT CHANNEL
n-2 n-1
Figure 15c Mixed Mode
n
LSB
MSB
1/fs
1
2
3
Figure 15b Slave Mode
RIGHT CHANNEL
n-2 n-1
AI Rev 3.1 June 2004
n
LSB
WM8753L
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