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WM8959 датащи(PDF) 31 Page - Wolfson Microelectronics plc

номер детали WM8959
подробное описание детали  Mobile Multimedia DAC with Dual-Mode Class AB/D Speaker Driver
PDF  155 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8959 датащи(HTML) 31 Page - Wolfson Microelectronics plc

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Pre-Production
WM8959
w
PP, May 2008, Rev 3.1
31
CONTROL INTERFACE TIMING – 4-WIRE MODE
4-wire mode supports readback via SDOUT which is available as a GPIO pin function.
CSB
SCLK
SDIN
t
DHO
t
DSU
t
SCY
t
CHO
LSB
t
CSU
Figure 10 Control Interface Timing – 4-Wire Serial Control Mode (Write Cycle)
CSB
SCLK
SDOUT
t
DL
LSB
Figure 11 Control Interface Timing – 4-Wire Serial Control Mode (Read Cycle)
Test Conditions
DCVDD=1.8V, DBVDD=AVDD=HPVDD=SPKVDD=3.3V, DGND=AGND=HPGND=SPKGND=0V, TA =+25
oC, Slave Mode,
fs=48kHz, MCLK=256fs, 24-bit data, unless otherwise stated.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Program Register Input Information
SCLK rising edge to CSB falling edge
tCSU
40
ns
SCLK falling edge to CSB rising edge
tCHO
40
ns
SCLK pulse cycle time
tSCY
200
ns
SCLK pulse width low
tSCL
80
ns
SCLK pulse width high
tSCH
80
ns
SDIN to SCLK set-up time
tDSU
40
ns
SDIN to SCLK hold time
tDHO
10
ns
SDOUT propagation delay from SCLK rising edge
tDL
10
ns
Pulse width of spikes that will be suppressed
tps
0
5
ns
SCLK falling edge to SDOUT transition
tDL
40
ns



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