XWM8191CFT Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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XWM8191CFT Datasheet PDF : 27 Pages
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WM8191
Advanced Information
OEB
OP[13:0]
tPZE
Hi-Z
tPEZ
Hi-Z
Figure 3 Output Data Enable Timing
Test Conditions
AVDD1 = AVDD2 = DVDD1 = 4.75 to 5.25V, DVDD2 = DVDD3 = 2.97 to 3.63V, AGND = DGND = 0V, TA = 0 to 70°C,
MCLK = 12MHz unless otherwise stated.
PARAMETER
Output propagation delay
Output enable time
Output disable time
SYMBOL
tPD
tPZE
tPEZ
TEST CONDITIONS
IOH = 1mA, IOL = 1mA
MIN
TYP
MAX
75
50
25
SERIAL INTERFACE
UNITS
ns
ns
ns
SCK
SDI
SEN
SDO
tSPER
tSSU
tSH
tSCKL tSCKH
tSCE
ADC DATA
tSEW tSEC
tSERD
tSCRD
t
SCRDZ
MSB
LSB
REGISTER DATA
ADC
DATA
Figure 4 Serial Interface Timing
Test Conditions
AVDD1 = AVDD2 = DVDD1 = 4.75 to 5.25V, DVDD2 = DVDD3 = 2.97 to 3.63V, AGND = DGND = 0V, TA = 0 to 70°C,
MCLK = 12MHz unless otherwise stated.
PARAMETER
SCK period
SYMBOL
tSPER
TEST CONDITIONS
SCK high
tSCKH
SCK low
tSCKL
SDI set-up time
tSSU
SDI hold time
tSH
SCK to SEN set-up time
tSCE
SEN to SCK set-up time
tSEC
SEN pulse width
tSEW
SEN low to SDO = Register data
tSERD
SCK low to SDO = Register data
tSCRD
SCK low to SDO = ADC data
tSCADC
Note: Parameters are measured at 50% of the rising/falling edge.
WOLFSON MICROELECTRONICS LTD
MIN
83.3
37.5
37.5
10
10
20
20
50
TYP
MAX
35
35
25
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AI Rev 3.1 April 2001
8
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