Figure 1. clki timing, Figure 2. reset timing, Figure 3. microcontroller interface timing – Cirrus Logic CS6422 User Manual
Page 8: Switching characteristics, Cs6422
CS6422
8
SWITCHING CHARACTERISTICS
Parameter
Symbol
Min
Typ
Max
Units
Digital input rise time
t
rise
1.0
µs
RST low time
t
RSTL
1.0
µs
CLKI frequency
f
CLKI
20.480
MHz
CLKI duty cycle
t
LCLKI
40
50
60
%
CLKI high or low time
t
HLCLKI
19.5
ns
Min DRDY falling to DRDY falling (CLKI = 20.480 MHz)
t
DRDY
125
µs
STROBE high or low time
t
HLSTROBE
55
ns
DRDY falling to STROBE rising setup time
t
sDRDY
30
ns
DATA valid to STROBE rising setup time
t
sDATA
30
ns
STROBE rising to DATA valid hold time
t
hDATA
30
ns
STROBE rising to DRDY rising hold time
t
hDRDY
30
ns
Min RST rising to 4th extra STROBE pulse (cold reset)
t
cRST
110
ms
Max RST rising to 4th extra STROBE pulse (warm reset)
t
wRST
100
ms
1
f
CLKI
t
HLCKI
t
HLCKI
Figure 1. CLKI Timing
Bit15 Bit14
Bit2
Bit1
Bit0
DATA
DRDY
STROBE
four extra strobe pulses
1
2
3
4
RST
t
RSTL
t
cRST
t
wRST
Figure 2. Reset Timing
Bit15
DATA
DRDY
STROBE
Bit14
Bit0
t sDRDY
t sDATA
t hDATA
t hDRDY
Bit15
Bit14
t HLSTROBE
t DRDY
Figure 3. Microcontroller Interface Timing
CS6422
8
DS295F1