1.
The following tables provides information on the operating characteristics for SA.22c design.
Note: Unit in ambient still air convection (–10 °C to 75 °C).
Table 3 • SA.22c Design Operating Characteristics
Symbol Characteristic and Condition Minimum Typical Maximum Unit
Digital Inputs/Outputs
VDD Supply relative to ground 15 Vdc Input 14.75 15 15.25 V
VCC Supply relative to ground 5 Vdc Input 4.75 5 5.25 V
VIH High level input voltage DIN 2.5 5 5.25 V
1PPS IN 1.8 5 5.25 V
VIL Low level input voltage DIN 0 0.8 V
1PPSIN 0 0.8 V
VOH High level input voltage DOUT, SERVICE,
Lock at
IOH = –0.33 mA
at IOH = 0 mA
3.5 5 5.25 V
FACMOS,1PPS
OUT at
IOH = –3.5 mA
3.5 5 5.25 V
VOL Low level input voltage DOUT, SERVICE,
Lock at IOL = 0.1 mA
0 0.4 V
FACMOS, 1PPS
OUT at IOL = 1.7 mA
0 0.4 V
Analog Inputs/Outputs
VFC Frequency control input
voltage range
Resolution of
2.0 × 10
–12
ΔHz/Hz
0 2.5 5 V
FACMOS ACMOS frequency output 10 MHz
1
–5 × 10
–11
+5 × 10
–11
ΔHz
/Hz
Frequency Control
ΔF/FR Control range Analog (FREQ CTRL pin)
(wide range option)
–1.5 × 10
–9
–6.5 × 10
–9
+1.5 × 10
–9
+6.5 × 10
–9
ΔHz
/Hz
Digital Interface –1.0 × 10
–6
+1.0 × 10
–6
ΔHz
/Hz
ΔF/FRES Frequency control resolution Digital 2 × 10
–12
ΔHz
/Hz
Contact the manufacturer for information about other frequencies.