WM8978_06 Wolfson Microelectronics Ltd., WM8978_06 Datasheet - Page 18

• Manufacturer Part Number: WM8978_06
• Description: Stereo Codec With Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8978
CONTROL INTERFACE TIMING – 2-WIRE MODE
w
Test Conditions
DCVDD=1.8V,
MCLK = 256fs, 24-bit data, unless otherwise stated.
PARAMETER
Program Register Input Information
SCLK Frequency
SCLK Low Pulse-Width
SCLK High Pulse-Width
Hold Time (Start Condition)
Setup Time (Start Condition)
Data Setup Time
SDIN, SCLK Rise Time
SDIN, SCLK Fall Time
Setup Time (Stop Condition)
Data Hold Time
Pulse width of spikes that will be suppressed
DBVDD=AVDD=SPKVDD=3.3V,
Figure 5 Control Interface Timing – 2-Wire Serial Control Mode
SCLK
SDIN
t
3
DGND=AGND=SPKGND=0V,
t
1
t
6
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
ps
9
1
2
3
4
5
6
7
8
9
t
2
t
7
t
5
MIN
600
600
600
100
600
1.3
T
0
0
A
=+25
t
4
o
C,
t
3
TYP
Slave
PP Rev 3.0 May 2006
Mode,
MAX
526
300
300
900
5
Pre-Production
fs=48kHz,
t
8
UNIT
kHz
us
ns
ns
ns
ns
ns
ns
ns
ns
ns
18