CS5451A-ISZR Ver la hoja de datos (PDF) - Cirrus Logic
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CS5451A-ISZR Datasheet PDF : 15 Pages
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CS5451A
SWITCHING CHARACTERISTICS
• Min/Max characteristics and specifications are guaranteed over all Operating Conditions.
• Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.
• VA+ = VD+ = 3 V ±10%; VA- = -2 V ±10%; AGND = DGND = 0 V. All voltages with respect to 0 V.
• Logic Levels: Logic 0 = 0 V, Logic 1 = VD+
Parameter
Symbol Min
Typ
Rise Times
(Note 6)
Any Digital Input (except XIN)
-
-
XIN only trise
-
-
Any Digital Output
-
50
Fall Times
(Note 6)
Any Digital Input (except XIN)
XIN only
tfall
Any Digital Output
-
-
-
-
-
50
Serial Port Timing
Serial Clock Frequency
(Note 7)
OWRS = “0” SCLK
-
500
OWRS = “1” SCLK
-
1000
Serial Clock
(Note 7 and 8)
SCLK falling to New Data Bit
FSO Falling to SCLK Rising Delay
FSO Pulse Width
SE Rising to Output Enabled
SE Falling to Output in Tri-state
Pulse Width High
t1
Pulse Width Low
t2
t3
(Note 7 & 8)
t4
(Note 7 & 8)
t5
(Note 9)
t6
t7
-
0.5
-
0.5
-
-
-
0.5
-
1
-
-
-
-
Notes: 6. Specified using 10% and 90% points on wave-form of interest. Output loaded with 50 pF.
7. Device parameters are specified with XIN = 4.096 MHz.
8. Device parameters are specified with OWRS = 1.
9. After SE is asserted, the states of SDO and SCLK are FSO is undefined.
Max
1.0
10
-
1.0
10
-
-
-
-
-
50
-
-
50
50
Unit
µs
ns
ns
µs
ns
ns
kHz
kHz
SCLK
SCLK
ns
SCLK
SCLK
ns
ns
SDO
SCLK
FSO
SE
t6
6
MSB(V1) MSB(V1) - 1
t
3
t1 t2
t4
t5
LSB(I3)
t7
Figure 1. Serial Port Timing
DS635F4
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