W83971D Datasheet, PDF (29/58 Pages) Winbond – AC97 AUDIO CODEC

Preliminary W83971D
PARAMETERS
BIT_CLK frequency
BIT_CLK period
BIT_CLK output jitter
BIT_CLK pulse width (high)
BIT_CLK pulse width (low)
SYNC frequency
SYNC period
SYNC pulse width (high)
SYNC pulse width (low)
SYMBOL
MIN.
Tclk_period
TYP.
12.288
81.4
Tclk_high
32.56
40.7
Tclk_low
32.56
40.7
48
Tsync_period
20.8
Tsync_high
1.3
Tsync_low
19.5
MAX.
750
48.84
48.84
UNITS
MHz
nS
pS
nS
nS
KHz
µS
µS
µS
8.4 Setup and Hold
Load Capacitance: 50 pF
Tsetup
BIT_CLK
Thold
SDATA_IN, SDATA_OUT
SYNC
Tsetup
Thold
PARAMETERS
SYMBOL MIN. TYP.
SDATA_OUT setup to falling edge of BIT_CLK Tsetup
15
SDATA_OUT hold from falling edge of
BIT_CLK
Thold
5
SYNC setup to rising edge of BIT_CLK
Tsetup
15
SYNC hold from rising edge of BIT_CLK
Thold
5
Note: SDATA_IN setup and hold calculations determined by AC’97 Controller propagation delay
MAX.
UNIT
S
nS
nS
nS
nS
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Publication Release Date: July 1999
Revision A1