WM8181 查看數據表（PDF） - Wolfson Microelectronics plc
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WM8181 Datasheet PDF : 14 Pages
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Advanced Information
WM8181
TEST CHARACTERISTICS
AVDD = DVDD = 2.97 to 3.63V and 4.5 to 5.5V, AGND1 = AGND2 = DGND = 0V, TA = 0 to 70°C, MCLK = 24MHz
unless otherwise stated.
PARAMETER
SYMBOL
DIGITAL SPECIFICATION
Digital Inputs
High level input voltage
VIH
Low level input voltage
VIL
High level input current
Low level input current
Input capacitance
Digital Outputs
High level output voltage
Low level output voltage
High impedance output current
OVERALL SYSTEM SPECIFICATION
Supply Currents
Total analogue supply current –
active
Total digital supply current –
active
Supply current – disabled
TEST
MIN
CONDITIONS
0.8 ∗ DVDD
IOH = 1mA
IOL = -1mA
DVDD - 0.5
AVDD = DVDD = 5V
AVDD = DVDD = 3.3V
AVDD = DVDD = 5V
AVDD = DVDD = 3.3V
AVDD = DVDD = 5V
AVDD = DVDD = 3.3V
TYP
MAX
UNIT
V
0.2 ∗ DVDD V
<1
µA
<1
µA
5
pF
V
0.5
V
<1
µA
21
mA
19
mA
2
mA
1
mA
<1
µA
<1
µA
MCLK
VSMP
DOUT
tPER
tMCLKH tMCLKL
tVSMPSU
tVSMPH
SAMPLE n
tPD
n-2 D[11]
n-2 D[10]
n-2 D[9]
Figure 1 Clock Inputs and Data Output
TEST CHARACTERISTICS
AVDD = DVDD = 2.97 to 3.63V and 4.5 to 5.5V, AGND1 = AGND2 = DGND = 0V, TA = 0 to 70°C, MCLK = 24MHz
unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
Maximum MCLK period
MCLK high
MCLK low
VSMP data set-up time
VSMP data hold time
MCLK to DOUT
propagation delay
tPER
tMCLKH
tMCLKL
tVSMPSU
tVSMPH
tPD
AVDD = DVDD = 5V
MCLK to DOUT
propagation delay
tPD
AVDD = DVDD = 3.3V
Note: Parameters are measured at 50% of the rising/falling edge.
MIN
41.7
16
16
10
10
TYP
10
15
MAX
UNIT
ns
ns
ns
ns
ns
ns
ns
WOLFSON MICROELECTRONICS LTD
AI Rev 3.0 January 2000
5
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