© 1999 Scenix Semiconductor, Inc. All rights reserved.
- 38 -
www.scenix.com
SX18AC / SX20AC / SX28AC
17.3 AC Characteristics
Operating Temperature 0° C <= Ta <= +70° C (Commercial)
Note:Data in the Typical (“TYP”) column is at 5V, 25° C unless otherwise stated.
Internal RC Oscillator AC specs are still being characterized. Specification is 4MHz ± 8% over commercial temp (0° C-
70° C) range.
17.4 Comparator DC and AC Specifications
Symbol
Parameter
Min
Typ
Max
Units
Conditions
Fosc
External CLKIN Frequency
DC
–
4.0
4.0
50
200
MHz
MHz
MHz
KHz
RC
XT
HS
LP
Oscillator Frequency
DC
0.1
4
5
–
4.0
4.0
50
200
MHz
MHz
MHz
KHz
RC
XT
HS
LP
Tosc
External CLKIN Period
250
250
20
5.0
–
–
ns
ns
ns
µs
RC
XT
HS
LP
Oscillator Period
250
250
20
5.0
–
–
10,000
250
200
ns
ns
ns
µs
RC
XT
HS
LP
TosL, TosH Clock in (OSC1) Low or High Time
50
8.0
2.0
–
–
ns
ns
µs
XT
HS
LP
TosR, TosF Clock in (OSC1) Rise or Fall Time
–
–
25
25
50
ns
ns
µs
XT
HS
LP
Parameter
Conditions
Min
Typ
Max
Units
Input Offset Voltage
0.4V < Vin < Vcc – 1.5V
+/- 10
+/- 25
mV
Input Common Mode Voltage Range
0.4
Vcc – 1.3
V
Voltage Gain
300k
V/V
DC Supply Current (enabled)
Vcc = 5.5V
120
µA
Response Time
Voverdrive = 25mV
250
ns
