WM8740EDS Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM8740EDS Datasheet PDF : 24 Pages
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WM8740
Production Data
SCKI
tSCKIL
tSCKIH
tSCKY
Figure 2 System Clock Timing Requirements
Test Conditions
AVDD, DVDD = 5V, AGND, DGND = 0V, TA = +25oC, fs = 48kHz, SCKI = 256fs unless otherwise stated.
PARAMETER
SYMBOL
System Clock Timing Information
System clock pulse width high
tSCKIH
System clock pulse width low
tSCKIL
System clock cycle time
tSCKY
TEST CONDITIONS
MIN
TYP
10
10
27
MAX
UNIT
ns
ns
ns
ML/I2S
MC/DM1
MD/DM0
tMCY
tMCH
tMCL
tMDS tMDH
tMLL
tMHH
tMLD
tMLS
LSB
Figure 3 Program Register Input Timing – SPI Compatible Serial Control Mode
Test Conditions
AVDD, DVDD = 5V, AGND, DGND = 0V, TA = +25oC, fs = 48kHz, SCKI = 256fs unless otherwise stated.
PARAMETER
SYMBOL
Program Register Input Information
MC/DM1 pulse cycle time
tMCY
MC/DM1 pulse width low
tMCL
MD/DM0 pulse width high
tMCH
MD/DM0 set-up time
tMDS
MC/DM1 hold time
tMDH
ML/I2S pulse width low
tMLL
ML/I2S pulse width high
tMHH
ML/I2S set-up time
tMLS
ML/I2S delay from MC
tMLD
TEST CONDITIONS
MIN
TYP
80
32
32
10
10
10
10
10
10
MAX
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
w
PD Rev 4.0 April 2004
8
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