Standard Frequency Differential Oscillator
Description
SiT9120
Standard Frequency Differential Oscillator
Features
31 standard frequencies from 25 MHz to 212.
5 MHz LVPECL and LVDS output signaling types 0.
6 ps RMS phase jitter (random) over 12 kHz
to 20 MHz bandwidth Frequency stability as low as ±10 ppm Industrial and extended commercial temperature ranges Industry-standard packages: 3.
2 x 2.
5, 5.
0 x 3.
2 and
7.
0 x 5.
0 mm x mm For any other frequencies between 1 to 625 MHz,
refer to SiT9121 and SiT9122 datasheet
Applications
10GB Ethernet, SONET, SATA, SAS, Fibre Channel, PCI-Express
Telecom, networking, instrumentation, storage, server
Electrical Characteristics
Table 1.
Electrical Characteristics
Parameters
Supply Voltage
Output Frequency Range Frequency Stability
First Year Aging 10-year Aging Operating Temperature Range
Input Voltage High Input Voltage Low Input Pull-up Impedance
Start-up Time Resume Time Duty Cycle
Current Consumption OE Disable Supply Current Output Disable Leakage Current Standby Current Maximum Output Current Output High Voltage Output Low Voltage Output Differential Voltage Swing Rise/Fall Time OE Enable/Disable Time RMS Period Jitter
RMS Phase Jitter (random)
Symbol Min.
Typ.
Max.
Unit
Condition
LVPECL and LVDS, Common Electrical Characteristics
Vdd
2.
97
3.
3
3.
63
V
2.
25
2.
5
2.
75
V
2.
25
–
3.
63
V Termination schemes in Figures 1 and 2 - XX ordering code
f
25
–
212.
5 MHz See list of standard frequencies
F_stab
-10
–
+10
ppm Inclusive of initial tolerance, operating temperature,
-20
–
+20
ppm rated power supply voltage, and load variations
-25
–
+25
ppm
-50
–
+50
ppm
F_aging1
-2
–
+2
ppm 25°C
F_aging10 -5
–
+5
ppm 25°C
T_use
-40
–
+85
°C Industrial
-20
–
+70
°C Extended Commercial
VIH
70%
–
–
Vdd Pin 1, OE or ST
VIL
–
–
30%
Vdd Pin 1, OE or ST
Z_in
–
100
250
kΩ Pin 1, OE logic high or logic low, or ST logic high
2
–
–
MΩ Pin 1, ST logic low
T_start
–
6
10
ms Measured from the time Vdd reaches i...
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