CS6422
SWITCHING CHARACTERISTICS
Parameter
Digital input rise time
RST low time
CLKI frequency
CLKI duty cycle
CLKI high or low time
Min DRDY falling to DRDY falling (CLKI = 20.480 MHz)
STROBE high or low time
DRDY falling to STROBE rising setup time
DATA valid to STROBE rising setup time
STROBE rising to DATA valid hold time
STROBE rising to DRDY rising hold time
Min RST rising to 4th extra STROBE pulse (cold reset)
Max RST rising to 4th extra STROBE pulse (warm reset)
Symbol
t
rise
t
RSTL
f
CLKI
t
LCLKI
t
HLCLKI
t
DRDY
t
HLSTROBE
t
sDRDY
t
sDATA
t
hDATA
t
hDRDY
t
cRST
t
wRST
55
30
30
30
30
110
100
40
19.5
125
1.0
20.480
50
60
Min
Typ
Max
1.0
Units
µs
µs
MHz
%
ns
µs
ns
ns
ns
ns
ns
ms
ms
1
f
CLKI
t
HLCKI
t
HLCKI
Figure 1. CLKI Timing
t
RSTL
RST
STROBE
t
cRST
t
wRST
four extra strobe pulses
1
2
3
4
DATA
DRDY
Bit15 Bit14
Bit2
Bit1
Bit0
Figure 2. Reset Timing
t DRDY
DRDY
t sDRDY
t hDRDY
STROBE
t sDATA
t hDATA
t HLSTROBE
DATA
Bit15
Bit14
Bit0
Bit15
Bit14
Figure 3. Microcontroller Interface Timing
8
DS295F1
CIRRUS [ CIRRUS LOGIC ]
