SiTime SiT8925B Manual

SiT8925B
High Frequency, Automotive AEC-Q100 Oscillator
Features
AEC-Q100 with extended temperature range (-55°C to 125°C)

Frequencies between 115.2 MHz and 137 MHz accurate to

6 decimal points
100% pin-to-pin drop-in replacement to quartz-based XO

Excellent total frequency stability as low as ±20 ppm

Industry best G-sensitivity of 0.1 PPB/G

Low power consumption of 3.8 mA typical at 1.8V

LVCMOS/LVTTL compatible output

Industry-standard packages: 2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5,

5.0 x 3.2, 7.0 x 5.0 mm x mm
RoHS and REACH compliant, Pb-free, Halogen-free and

Antimony-free
Electrical Characteristics
Table 1. Electrical Characteristics
All Min and Max limits are specified over temperature and rated operating voltage with 15 pF output load unless otherwise
stated. Typical values are at 25°C and nominal supply voltage.
Parameter
Output Frequency Range
Frequency Stability
Operating Temperature
Range (ambient)
Supply Voltage
Current Consumption
Duty Cycle
Rise/Fall Time
Output High Voltage
Output Low Voltage
Input High Voltage
Input Low Voltage
Input Pull-up Impedance
Startup Time
Enable/Disable Time
Standby Current
Rev 1.6
Symbol Min. Typ. Max.
–
f 115.20
Frequency Stability and Aging
–
F_stab
-20
–
-25
–
-30
–
-50
Operating Temperature Range
–
T_use
-40
–
-40 +105
–
-40 +125
–
-55 +125
Supply Voltage and Current Consumption
Vdd 1.62 1.8 1.98
–
2.25 3.63
–
Idd 6
–
4.9
LVCMOS Output Characteristics
–
DC 45
–
1.5
Tr, Tf
–
1.5
–
VOH 90%
– –
VOL 10%
–
VIH 70%
– –
VIL 30%
–
Z_in 100
Startup and Resume Timing
– –
T_start
– –
T_oe
I_std
–
2.6
–
1.4
–
0.6
Applications
Automotive, extreme temperature and other high-rel

electronics
Infotainment systems, collision detection devices, and

in-vehicle networking
Powertrain control

Unit
Frequency Range
137 MHz
Refer to Tables 13 to 15
Inclusive of Initial tolerance at 25°C, 1
+20 ppm
variations over operating temperature, rated power supply voltage
+25 ppm
and load (15 pF ± 10%).
+30 ppm
+50 ppm
+85 °C AEC-Q100 Grade 3
°C AEC-Q100 Grade 2
°C AEC-Q100 Grade 1
°C Extended cold, AEC-Q100 Grade1
V All voltages between 2.25V and 3.63V including 2.5V, 2.8V, 3.0V and 3.3V
are supported. Contact
V
8 mA No load condition, f = 125 MHz, Vdd = 2.25V to 3.63V
6 mA No load condition, f = 125 MHz, Vdd = 1.62V to 1.98V
55 %
3 ns Vdd = 2.25V - 3.63V, 20% - 80%
2.5 ns Vdd = 1.8V, 20% - 80%
–
Vdd IOH = -4 mA (Vdd = 3.0V or 3.3V)
IOH = -3 mA (Vdd = 2.8V and Vdd = 2.5V)
IOH = -2 mA (Vdd = 1.8V)
Vdd IOL = 4 mA (Vdd = 3.0V or 3.3V)
IOL = 3 mA (Vdd = 2.8V and Vdd = 2.5V)
IOL = 2 mA (Vdd = 1.8V)
Input Characteristics
–
Vdd Pin 1, OE
Vdd Pin 1, OE
–
k Pin 1, OE logic high or logic low
5 ms Measured from the time Vdd reaches its rated minimum value
130 ns f = 115.20 MHz. For other frequencies, T_oe = 100 ns + 3 * cycles
– A
Vdd = 2.8V to 3.3V,
– A
Vdd = 2.5V, = Low, Output is weakly pulled down
ST
– A
Vdd = 1.8V, = Low, Output is weakly pulled down
ST
July 18, 2018
Condition
for the exact list of supported frequencies
st
year aging at 25°C, and
SiTime for 1.5V support
ST = Low, Output is weakly pulled down
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