SI598 Datasheet, PDF (6/28 Pages) Silicon Laboratories – Programmable with 28 parts per trillion frequency resolution

Si598/Si599
Table 3. CLK± Output Frequency Characteristics
(Typical values TA = 25 ºC, V_DD= 3.3 V, min/max limits VDD = 1.8 ±5%, 2.5 or 3.3 V ±10%, TA = –40 to 85 ºC unless otherwise
noted)
Parameter
Symbol
Test Condition
Min Typ Max Units
Programmable Frequency
Range^1,2,3
f_O
LVPECL/LVDS/CML
CMOS
10
—
810 MHz
10
—
160 MHz
Total Stability (Si598)^1,2,4,5
Temp stability = ±20 ppm
Temp stability = ±25 ppm
—
—
±30 ppm
—
—
±50 ppm
Temp stability = ±50 ppm
—
— ±100 ppm
Temperature Stability (Si599)^1,5
T_A = –40 to +85 ºC
–20
–50
—
—
+20
+50
ppm
Absolute Pull Range^1,5 (Si599)
Powerup Time⁶
APR
t_OSC
±10
— ±370 ppm
—
—
10
ms
Notes:
1. See Section 7. Ordering Information on page 22 for further details.
2. Specified at time of order by part number. Three frequency grades are available:
Grade A covers 10 to 810 MHz.
Grade B covers 10 to 280 MHz.
Grade C covers 10 to 160 MHz.
3. Nominal output frequency set by V_CNOM = 1/2 x V_DD.
4. Includes initial accuracy, temperature drift, shock, vibration, power supply and load drift. ±100 ppm and ±50 ppm
options include 15 years aging at 70 °C. ±30 ppm option includes 10 years aging at 40 °C.
5. Selectable parameter specified by part number. See 7. Ordering Information on page 22.
6. Time from power up or tristate mode to f_O.
6
Rev. 1.0