WM8766_05 Datasheet, PDF (9/36 Pages) Wolfson Microelectronics plc – 24-bit, 192kHz 6-Channel DAC

Production Data
DIGITAL AUDIO INTERFACE – SLAVE MODE
WM8766
BCLK
WM8766
DAC
LRCLK
DIN1/2/3
3
DSP/
DECODER
Figure 4 Audio Interface – Slave Mode
BCLK
LRCLK
DIN1/2/3
t_BCH
t_BCL
t_BCY
t_DS
t_LRH
t_LRSU
Figure 5 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
tBCH
BCLK pulse width low
tBCL
LRCLK set-up time to BCLK
rising edge
tLRSU
LRCLK hold time from
tLRH
BCLK rising edge
DIN1/2/3 set-up time to
tDS
BCLK rising edge
DIN1/2/3 hold time from
tDH
BCLK rising edge
Table 3 Digital Audio Data Timing – Slave Mode
TEST CONDITIONS
MIN
TYP
MAX
UNIT
50
ns
20
ns
20
ns
10
ns
10
ns
10
ns
10
ns
w
PD Rev 4.1 July 2005
9