Cirrus Logic CS5467 - Manual (Page 11)

CS5467
DS714F3 11
SWITCHING CHARACTERISTICS
• Min / Max characteristics and specifications are guaranteed over all Recommended Operating Conditions .
• Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.
• VA+ = 5 V ±5% VD+ = 3.3 V ±5% or 5 V ±5%; AGND = DGND = 0 V. All voltages with respect to 0 V.
• Logic Levels: Logic 0 = 0 V, Logic 1 = VD+.
Notes: 17. Specified using 10% and 90% points on waveform of interest. Output loaded with 50 pF.
18. Oscillator start-up time varies with crystal parameters. This specification does not apply when using an
external clock source.
Parameter Symbol Min Typ Max Unit
Rise Times
(Note 17)
Any Digital Output
t
rise
-
- -
50
1.0
-
µs
ns
Fall Times
(Note 17)
Any Digital Output
t
fall
-
- -
50
1.0
-
µs
ns
Start-up
Oscillator Start-up Time XTAL = 4.096 MHz (Note 18 ) t
ost
- 60 - ms
Serial Port Timing
Serial Clock Frequency SCLK - - 2 MHz
Serial Clock Pulse Width High
Pulse Width Low
t
1
t
2
200
200 -
- -
- ns
ns
SDI Timing
CS Falling to SCLK Rising t
3
50 - - ns
Data Set-up Time Prior to SCLK Rising t
4
50 - - ns
Data Hold Time After SCLK Rising t
5
100 - - ns
SDO Timing
CS Falling to SDO Driving t
6
- 20 50 ns
SCLK Falling to New Data Bit (hold time) t
7
- 20 50 ns
CS Rising to SDO Hi-Z t
8
- 20 50 ns
E
2
PROM mode Timing
Serial Clock Pulse Width Low
Pulse Width High
t
9
t
10
8
8 DCLK
DCLK
MODE setup time to RESET Rising t
11
50 ns
RESET rising to CS falling t
12
48 DCLK
CS falling to SCLK rising t
13
100 8 DCLK
SCLK falling to CS rising t
14
16 DCLK
CS rising to driving MODE low t
15
50 ns
SDO setup time to SCLK rising t
16
100 ns