Datasheet

Rev. I|Page 42 of 68 | July 2010
ADSP-BF534/ADSP-BF536/ADSP-BF537
Table 33. External Late Frame Sync
Parameter MinMaxUnit
Switching Characteristics
t
DDTLFSE
Data Delay from Late External TFSx or External RFSx with MCMEN = 1, MFD = 0
1, 2
10.0 ns
t
DTENLFS
Data Enable from Late FS or MCMEN = 1, MFD = 0
1, 2
0 ns
1
MCMEN = 1, TFSx enable and TFSx valid follow t
DDTENFS
and t
DDTLFS
.
2
If external RFSx/TFSx setup to RSCLKx/TSCLKx > t
SCLKE
/2, then t
DDTE/I
and t
DTENE/I
apply, otherwise t
DDTLFSE
and t
DTENLFS
apply.
Figure 23. External Late Frame Sync
RSCLKx
RFSx
DTx
DRIVE
EDGE
DRIVE
EDGE
SAMPLE
EDGE
EXTERNAL RFSx IN MULTI-CHANNEL MODE
1ST BIT
t
DTENLFSE
t
DDTLFSE
TSCLKx
TFSx
DTx
DRIVE
EDGE
DRIVE
EDGE
SAMPLE
EDGE
LATE EXTERNAL TFSx
1ST BIT
t
DDTLFSE