WM8777
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CONTROL INTERFACE TIMING – 2-WIRE MODE
t
3
t
t
3
5
SDIN
SCLK
t
t
t
t
6
2
4
8
t
t
t
7
9
1
Figure 10 Control Interface Timing – 2-Wire Serial Control Mode (MODE=0)
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs unless otherwise stated
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Program Register Input Information
SCLK Frequency
0
400
kHz
ns
us
ns
ns
ns
ns
ns
ns
ns
ns
SCLK Low Pulse-Width
SCLK High Pulse-Width
Hold Time (Start Condition)
Setup Time (Start Condition)
Data Setup Time
t1
t2
t3
t4
t5
t6
t7
t8
t9
tps
600
1.3
600
600
100
SDIN, SCLK Rise Time
SDIN, SCLK Fall Time
300
300
Setup Time (Stop Condition)
Data Hold Time
600
0
900
5
Pulse width of spikes that will be suppressed
Table 15 2-wire Control Interface Timing Information.
PP Rev 1.94 November 2004
28
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
