Symbol
Parameter
Min
Typ
Max
Unit
-
SCK Frequency
-
-
6.2
MHz
-
WS Frequency
-
-
96
kHz
Table 9.11: Digital Audio Interface Master Timing
Symbol
Parameter
Min
Typ
Max
Unit
t
spd
SCK low to WS valid delay time
-
-
39.27
ns
t
opd
SCK low to SD_OUT valid delay
time
-
-
18.44
ns
t
isu
SD_IN valid to SCK high set-up
time
18.44
-
-
ns
t
ih
SCK high to SD_IN invalid hold
time
0
-
-
ns
Table 9.12: I²S Master Mode Timing Parameters, WS and SCK as Outputs
G
-TW
-0
000232
.2.2
WS(Output)
SCK(Output)
SD_OUT
SD_IN
t
isu
t
ih
t
opd
t
spd
Figure 9.22: Digital Audio Interface Master Timing
Advance Information
This material is subject to CSR's non-disclosure agreement
© Cambridge Silicon Radio Limited 2011
Page 59 of 110
CS-209182-DSP1
CSR8640 BGA
Data Sheet
