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WM8940CGEFL/V Scheda tecnica(PDF) 16 Page - Cirrus Logic

Il numero della parte WM8940CGEFL/V
Spiegazioni elettronici  Mono CODEC with Speaker Driver
PDF  88 Pages
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8940CGEFL/V Scheda tecnica(HTML) 16 Page - Cirrus Logic

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WM8940
16
Rev 4.4
AUDIO INTERFACE TIMING – SLAVE MODE
BCLK
FRAME
t
BCH
t
BCL
t
BCY
DACDAT
ADCDAT
t
LRSU
t
DS
t
LRH
t
DH
t
DD
Figure 3 Digital Audio Data Timing
– Slave Mode
Test Conditions
DCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, TA=+25
oC, Slave Mode, fs=48kHz, MCLK= 256fs,
24-bit data, unless otherwise stated.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Audio Data Input Timing Information
BCLK cycle time
tBCY
81.38
ns
BCLK pulse width high
tBCH
32.55
ns
BCLK pulse width low
tBCL
32.55
ns
FRAME set-up time to BCLK rising edge
tLRSU
10
ns
FRAME hold time from BCLK rising edge
tLRH
10
ns
DACDAT hold time from BCLK rising edge
tDH
10
ns
DACDAT set-up time to BCLK rising edge
tDS
10
ns
ADCDAT propagation delay from BCLK falling edge
tDD
15
ns
Note:
BCLK period should always be greater than or equal to MCLK period.



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