wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 36
wm8400
Manufacturer Part Number
wm8400
Description
Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8400.pdf
(208 pages)
- Current page: 36 of 208
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WM8400
w
CONTROL INTERFACE TIMING – 3-WIRE MODE
Figure 7 Control Interface Timing – 3-Wire Serial Control Mode (Write Cycle)
Figure 8 Control Interface Timing - 3-Wire Serial Control Mode (Read Cycle)
Test Conditions
DCVDD=1.8V, HBVDD=MBVDD=I2CVDD=I2S1VDD=I2S2VDD=AVDD=3.0V, SPKVDD=5V,
GND=AGND=HPGND=SPKGND=0V, T
Program Register Input Information
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
SDIN to SCLK set-up time
SDIN to SCLK hold time
Pulse width of spikes that will be suppressed
SCLK falling edge to SDOUT transition
SDOUT
SCLK
CSB
PARAMETER
3-wire mode is selected by connecting the MODE pin high.
A
=+25
o
C, Slave Mode, fs=48kHz, MCLK=256fs, 24-bit data, unless otherwise stated.
t
DL
SYMBOL
t
t
t
t
t
t
t
CHO
DHO
CSU
SCY
SCL
SCH
DSU
t
t
DL
ps
MIN
200
40
10
80
80
40
10
0
LSB
TYP
PP, April 2009, Rev 3.0
MAX
40
5
Pre-Production
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
36
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