wm9081 Wolfson Microelectronics plc, wm9081 Datasheet - Page 14

• Manufacturer Part Number: wm9081
• Description: Mono Dac With 2.6w Class Ab/d Speaker Driver, Dynamic Range Controller And Retune Mobile Parametric Equalizer
• Manufacturer: Wolfson Microelectronics plc

WM9081
AUDIO INTERFACE TIMING – SLAVE MODE
Figure 3 Digital Audio Data Timing – Slave Mode
Note:
BCLK period should always be greater than or equal to MCLK period.
CONTROL INTERFACE TIMING – 2-WIRE MODE
2-wire mode is selected by connecting the SWMODE pin high and connecting the SCIM_CHANNEL pin low.
Figure 4 Control Interface Timing – 2-Wire Serial Control Mode
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Test Conditions
DCVDD=DBVDD=1.8V, AVDD=3.3V, SPKVDD=5V, DGND=AGND=SPKGND=0V, T
MCLK=256fs, 24-bit data, unless otherwise stated.
Audio Data Input Timing Information
BCLK cycle time
BCLK pulse width high
BCLK pulse width low
LRCLK set-up time to BCLK rising edge
LRCLK hold time from BCLK rising edge
DACDAT hold time from BCLK rising edge
DACDAT set-up time to BCLK rising edge
PARAMETER
SYMBOL
t
t
t
t
t
LRSU
t
BCY
BCH
t
BCL
LRH
DH
DS
A
MIN
=+25
80
40
40
10
10
10
o
C, Slave Mode, fs=48kHz,
TYP
PP, Rev 3.0, April 2009
MAX
40
Pre-Production
UNIT
ns
ns
ns
ns
ns
ns
ns
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