CS4205_05 Datasheet, PDF (63/81 Pages) Cirrus Logic – CrystalClear® Audio Codec ’97 for Portable Computing

CS4205
XTL_IN
XTL_OUT
22 pF
24.576 MHz
22 pF
DGND
Figure 24. External Crystal
External
Clock on ID1# ID0#
XTL_IN
AC-Link
Timing
Mode
Codec
ID
Clock
Source
Clock
Rate
(MHz)
PLL
Active
Application Notes
Yes
1
1
Primary
0
External 24.576
No clock generator driving XTL_IN
Yes
1
0
Primary
0
External 14.31818 Yes
Yes
0
1
Primary
0
External 27.000
Yes
external clock source driving XTL_IN
loop filter connected to XTL_OUT
Yes
0
0
Primary
0
External 48.000
Yes
No
1
1
Primary
0
XTAL
24.576
No crystal connected to XTL_IN, XTL_OUT
No
1
0 Secondary 1 BIT_CLK 12.288
No
No
0
1 Secondary 2 BIT_CLK 12.288
No
BIT_CLK from primary codec driving
BIT_CLK on all secondary codecs
No
0
0 Secondary 3 BIT_CLK 12.288
No
Table 27. Clocking Configurations for the CS4205
DS489PP4
63