WM8772_05 Datasheet, PDF (18/73 Pages) Wolfson Microelectronics plc – 24-bit, 192kHz 6-Channel Codec with Volume Control

WM8772EDS – 28 LEAD SSOP
DIGITAL AUDIO INTERFACE – SLAVE MODE
Production Data
WM8772
CODEC
LRC
BCLK
DOUT
DIN1/2/3
DSP
ENCODER/
DECODER
3
Figure 16 Audio Interface – Slave Mode
BCLK
LRC
DIN1/2/3
DOUT
t_BCH
t_BCL
t_BCY
t_DS
t_DD
t_LRH
t_DH
t_LRSU
Figure 17 Digital Audio Data Timing – Slave Mode
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25^oC, Slave Mode, fs = 48kHz, MCLK = 256fs unless otherwise
stated.
PARAMETER
SYMBOL
Audio Data Input Timing Information
BCLK cycle time
tBCY
BCLK pulse width high
BCLK pulse width low
LRC set-up time to BCLK
rising edge
tBCH
tBCL
tLRSU
LRC hold time from BCLK
tLRH
rising edge
DIN1/2/3 set-up time to
tDS
BCLK rising edge
DIN1/2/3 hold time from
tDH
BCLK rising edge
TEST CONDITIONS
MIN
TYP
MAX
UNIT
50
ns
20
ns
20
ns
10
ns
10
ns
10
ns
10
ns
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PD Rev 4.2 October 2005
18