WM8941GEFL WOLFSON [Wolfson Microelectronics plc], WM8941GEFL Datasheet - Page 15

• Manufacturer Part Number: WM8941GEFL
• Description: Mono CODEC with Speaker Driver and Video Buffer
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

Pre Production
w
AUDIO INTERFACE TIMING – SLAVE MODE
Note:
BCLK period should always be greater than or equal to MCLK period.
Test Conditions
DVDD=1.8V, AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T
data, unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
FRAME propagation delay from BCLK falling edge
ADCDAT propagation delay from BCLK falling edge
DACDAT setup time to BCLK rising edge
DACDAT hold time from BCLK rising edge
Test Conditions
DVDD=1.8V, AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T
data, unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
BCLK cycle time
BCLK pulse width high
BCLK pulse width low
FRAME set-up time to BCLK rising edge
FRAME hold time from BCLK rising edge
DACDAT hold time from BCLK rising edge
DACDAT set-up time to BCLK rising edge
ADCDAT propagation delay from BCLK falling edge
Figure 3 Digital Audio Data Timing – Slave Mode
SYMBOL
t
t
SYMBOL
t
t
LRSU
t
BCH
t
t
t
BCY
BCL
LRH
DH
DS
DD
A
t
t
t
=+25
t
DDA
DST
DHT
A
DL
=+25
o
C, Slave Mode, fs=48kHz, MCLK= 256fs, 24-bit
o
C, Slave Mode, fs=48kHz, MCLK=256fs,
81.38
32.55
32.55
10
10
10
10
10
10
MIN
MIN
TYP
TYP
PP, Rev 3.3, December 2007
MAX
MAX
10
15
15
WM8941
UNIT
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
24-bit
15