wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 16

• Manufacturer Part Number: wm8903
• Description: Ultra Low Power Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8903
SIGNAL TIMING REQUIREMENTS
COMMON TEST CONDITIONS
MASTER CLOCK
w
Master Clock Timing
PARAMETER
MCLK cycle time
MCLK cycle time
MCLK duty cycle
Unless otherwise stated, the following test conditions apply throughout the following sections:
Additional, specific test conditions are given within the relevant sections below.
Figure 1 Master Clock Timing
•
•
•
•
SYMBOL
T
T
T
T
MCLKDS
MCLKY
MCLKY
MCLKY
Ambient temperature = +25°C
DCVDD = 1.2V
DBVDD = AVDD = CPVDD = 1.8V
DGND = AGND = CPGND = 0V
MCLK
MCLKDIV2=1
MCLKDIV2=0
DCVDD
MCLKDIV2=0
TEST CONDITIONS
≥
1.62V
t
MCLKL
54.25
60:40
MIN
t
40
80
MCLKY
t
MCLKH
TYP
PP, Rev 3.1, August 2009
40:60
MAX
Pre-Production
ns
ns
ns
UNIT
16