SIT2021BM-S1-33S-121.169999 datasheet, PDF

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SIT2021BM-S1-33S-121.169999: DescriptionLVCMOS Output Clock Oscillator,; CategoryPassive components oscillator; File Size1MB，16 Pages; ManufacturerSiTime; Environmental Compliance

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SIT2021BM-S1-33S-121.169999 Overview

LVCMOS Output Clock Oscillator,

SIT2021BM-S1-33S-121.169999 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	8321987763
package instruction	TSOP5/6,.11,37
Reach Compliance Code	compliant
Other features	STANDBY; ENABLE/DISABLE FUNCTION; ALSO COMPATIBLE WITH LVTTL O/P
maximum descent time	2 ns
Frequency Adjustment - Mechanical	NO
frequency stability	20%
JESD-609 code	e4
Installation features	SURFACE MOUNT
Number of terminals	5
Nominal operating frequency	121.169999 MHz
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Oscillator type	LVCMOS
Output load	15 pF
Maximum output low current	4 mA
Package body material	PLASTIC/EPOXY
Encapsulate equivalent code	TSOP5/6,.11,37
physical size	3.05mm x 1.75mm x 1.45mm
longest rise time	2 ns
Maximum supply voltage	3.63 V
Minimum supply voltage	2.97 V
Nominal supply voltage	3.3 V
surface mount	YES
maximum symmetry	55/45 %
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)

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SiT2021B

High Frequency, -55°C to +125°C, SOT23 Oscillator

Features



Applications



Frequencies between 119.342001 MHz to 137 MHz accurate

to 6 decimal places

Operating temperature from -55°C to 125°C.

Supply voltage of 1.8V or 2.5V to 3.3V

Excellent total frequency stability as low as ±20 ppm

Low power consumption of 4.9 mA typical at 1.8V

LVCMOS/LVTTL compatible output

5-pin SOT23-5 package: 2.9 mm x 2.8 mm

RoHS and REACH compliant, Pb-free, Halogen-free

and Antimony-free

Ruggedized equipment in harsh operating

environment

Electrical Specifications

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.

Table 1. Electrical Characteristics

Parameters

Output Frequency Range

Frequency Stability

Symbol

F_stab

Min.

119.342001

-20

-25

-30

-50

Operating Temperature Range

Supply Voltage

T_use

Vdd

-55

Typ.

–

Max.

137

+20

+25

+30

+50

Unit

MHz

ppm

Condition

Refer to

Table 14

for the exact list of supported frequencies

Inclusive of Initial tolerance at 25°C, 1st year aging at 25°C,

and variations over operating temperature, rated power

supply voltage and load (15 pF ± 10%).

Frequency Range

Frequency Stability and Aging

Operating Temperature Range

–

+125

°C

Supply Voltage and Current Consumption

1.62

1.8

1.98

2.25

2.52

2.7

2.97

2.25

2.5

2.8

3.0

3.3

–

6.2

5.4

4.9

–

2.6

1.4

0.6

2.75

3.08

3.3

3.63

4.7

4.5

8.5

5.5

4.0

A

No load condition, f = 125 MHz, Vdd = 2.8V, 3.0V or 3.3V

No load condition, f = 125 MHz, Vdd = 2.5V

No load condition, f = 125 MHz, Vdd = 1.8V

Vdd = 2.5V to 3.3V, OE = Low, Output in high Z state.

Vdd = 1.8V, OE = Low, Output in high Z state.

Vdd = 2.8V to 3.3V,

= Low, Output is weakly pulled down

Vdd = 2.5V,

= Low, Output is weakly pulled down

Vdd = 1.8V,

= Low, Output is weakly pulled down

All Vdds

Vdd = 2.5V, 2.8V, 3.0V or 3.3V, 20% - 80%

Vdd =1.8V, 20% - 80%

Vdd = 2.25V - 3.63V, 20% - 80%

IOH = -4 mA (Vdd = 3.0V or 3.3V)

IOH = -3 mA (Vdd = 2.8V or 2.5V)

IOH = -2 mA (Vdd = 1.8V)

IOL = 4 mA (Vdd = 3.0V or 3.3V)

IOL = 3 mA (Vdd = 2.8V or 2.5V)

IOL = 2 mA (Vdd = 1.8V)

Current Consumption

Idd

–

OE Disable Current

Standby Current

I_od

I_std

–

Duty Cycle

Rise/Fall Time

Tr, Tf

–

LVCMOS Output Characteristics

–

1.0

1.3

1.0

–

2.0

2.5

–

Vdd

Output High Voltage

VOH

90%

Output Low Voltage

VOL

–

10%

Vdd

Rev. 1.02

April 27, 2018

www.sitime.com

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