wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 37

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wm8351

Manufacturer Part Number
wm8351
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet

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Figure 21 Control Interface Timing - 4-wire Control Mode (Write Cycle)
Figure 22 Control Interface Timing - 4-wire Control Mode (Read Cycle)
w
SDOUT output
Test Conditions
DBVDD = 3.3V, DGND = 0V, T
PARAMETER
CSB falling edge to SCLK rising edge
SCLK rising edge to CSB rising edge
SCLK pulse cycle time
SCLK pulse width low
SCLK pulse width high
SDATA to SCLK set-up time
SDATA to SCLK hold time
Pulse width of spikes that will be suppressed
SCLK falling edge to SDOUT transition
CSB input
(GPIO7)
SDATA
CSB input
(input)
(input)
SCLK
(GPIO7)
(GPIO6)
(input)
SCLK
t
CSU
A
= +25
t
DSU
o
C, unless otherwise stated.
t
DL
t
SCH
t
DHO
t
SCY
SYMBOL
t
t
t
t
t
t
t
CSU
CHO
SCH
DSU
DHO
t
SCY
SCL
t
DL
ps
t
SCL
MIN
200
40
10
80
80
40
10
0
TYP
t
CHO
PD, June 2009, Rev 4.1
MAX
40
5
WM8351
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
37

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