Datasheet

AD6620
–8–
REV. A
SERIAL PORT: BUS MASTER
RESET with PAR/SER = “0” establishes Serial Port active.
SBM = “1” puts AD6620 in Serial Bus Master mode SCLK is
output; SDFS is output.
t
SCLKD
t
SCLKL
t
SCLKH
CLK
SCLK
t
SCLK
Figure 9. SCLK Switching Characteristics
t
SSI
t
HSI
DATASDI
SCLK
Figure 10. Serial Input Data Timing Requirements
SCLK
t
DSF
t
DSE
t
SDFEH
t
SDFSH
SDFS
SDFE
Figure 11. Serial Frame Switching Characteristics
t
DSO
I
15
I
14
I
13
SCLK
SDO
Figure 12. Serial Output Data Switching Characteristics
SERIAL PORT: CASCADE MODE
RESET with PAR/SER = “0” establishes Serial Port active.
SBM = “0” puts AD6620 in Serial Port Cascade mode, SCLK
is input; SDFS is input.
t
SCLK
t
SCLKH
t
SCLKL
SCLK
Figure 13. SCLK Timing Requirements
t
SSI
t
HSI
SCLK
SDI
DATA
Figure 14. Serial Input Data Timing Requirements
t
HSRF
I
15
I
14
SCLK
SDO
t
HSF
Q
1
Q
0
SDFS
t
SSF
Figure 15. SDO/SDFS Timing Requirements
t
DSO
I
15
I
14
SCLK
SDO
t
DSE
t
SDFEH
Q
1
Q
0
SDFE
Figure 16. SDO, SDFE Switching Characteristics