CS4922 查看數據表（PDF） - Cirrus Logic
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CS4922 Datasheet PDF : 33 Pages
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CS4922
SWITCHING CHARACTERISTICS - CLOCKS (TA = 25 °C; VA+, VD+ = 5V; Inputs: Logic 0 =
DGND, Logic 1 = VD+, CL = 20pF)
Parameter
Symbol Min Typ Max Units
Master Clock Frequency
CLKIN
27
MHz
Master Clock Duty Cycle
CYCK 40
50
60
%
Clock Output
CLKOUT -
- 256 Fs MHz
SWITCHING CHARACTERISTICS - EXTERNAL FLAGS (TA = 25 °C; VA+, VD+ = 5V;
Inputs: Logic 0 = DGND, Logic 1 = VD+, CL = 20pF)
Parameter
Symbol Min Typ Max Units
Rise time of XF1-XF4
Fall time of XF1-XF4
(Note 3) trxf
tfxf
200
ns
100
ns
Notes: 3. Assumes 2kΩ pull-up to 5V supply on XF1-XF4 pins.
SWITCHING CHARACTERISTICS - PROGRAMMABLE INPUT/OUTPUT (TA = 25 °C;
VA+, VD+ = 5V; Inputs: Logic 0 = DGND, Logic 1 = VD+, CL = 20pF)
I_O = 0
Input Frequency
Risetime of PIO
Fall time of PIO
I_O = 1
Parameter
Symbol Min Typ Max Units
fpio
350 kHz
trpio
200
ns
tfpio
200
ns
Rise time of PIO
Fall time of PIO
trpo
200
ns
tfpo
200
ns
6
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