WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 28

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8959
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AUDIO INTERFACE TIMING – SLAVE MODE
Note:
BCLK (or BCLK2) period should always be greater than or equal to MCLK period.
Test Conditions
DCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T
MCLK=256fs, 24-bit data, unless otherwise stated.
Audio Data Input Timing Information
BCLK (or BCLK2) cycle time
BCLK (or BCLK2) pulse width high
BCLK (or BCLK2) pulse width low
DACLRC (or DACLRC2) set-up time to BCLK (or BCLK2)
rising edge
DACLRC (or DACLRC2) hold time from BCLK (or BCLK2)
rising edge
DACDAT (or DACDAT2) hold time from BCLK (or BCLK2)
rising edge
DACDAT (or DACDAT2) set-up time to BCLK (or BCLK2)
rising edge
PARAMETER
Figure 6 Digital Audio Data Timing – Slave Mode
SYMBOL
t
t
t
t
LRSU
t
BCH
t
t
BCY
BCL
LRH
DH
DS
A
=+25
MIN
50
20
20
20
10
10
20
o
C, Slave Mode, fs=48kHz,
TYP
PP, May 2008, Rev 3.1
MAX
Pre-Production
UNIT
ns
ns
ns
ns
ns
ns
ns
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