SiT3701AC-43-18C-2000000 datasheet, PDF

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SiT3701AC-43-18C-2000000: DescriptionVCXO Oscillators 20MHz 1.8Volts APR60 50ppm -20C +70C; CategoryPassive components; File Size115KB，4 Pages; ManufacturerSiTime

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VCXO Oscillators 20MHz 1.8Volts APR60 50ppm -20C +70C

SiT3701AC-43-18C-2000000 Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	SiTime
Product Category	VCXO Oscillators
RoHS	Details
Package / Case	QFN-4
Length	7 mm
Width	5 mm
Packaging	Bulk
Product	MEMS
Unit Weight	0.006562 oz

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SiT3701

Smallest Voltage Controlled MEMS Oscillator (VCMO)

■

Features, Benefits and Applications

■

The world’s only VCMO with programmable pull range: ±60 PPM, ±120 PPM, ±240 PPM

■

Typical pull range linearity of 0.06%

■

1-110 MHz frequency range

■

LVCMOS/LVTTL compatible output

■

Typical power consumption of 6.1 mA in active mode

■

Typical VCMO tuning voltage: 0 V to 1.85 V for all Vdds

■

Four industry-standard 4-pin packages: 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0 mm

■

All-silicon timing device with outstanding reliability of 2 FIT (10x improvement over

quartz-based devices), enhancing system MTBF

■

Ultra short lead time

■

Ideal for Set-top Box, DTV, DVD-R, instrumentation, low bandwidth analog PLL,

networking and communications

■

Specifications

Electrical Characteristics

Parameter

Output Frequency Range

Frequency Stability

Symbol

F_stab

Min.

-20

-25

-30

-50

Pull Range

[1,2]

Typ.

–

±60, ±120, ±240

–

0.06

Positive slope

–

1.8

2.5

2.8

3.3

6.7

6.1

–

Max.

110

+20

+25

+30

+50

1.85

0.1

0.25

+70

+85

1.89

2.75

3.08

3.63

7.5

6.7

2.0

2.5

–

Unit

MHz

PPM

–

°C

%Vdd

Condition

Inclusive of: Initial stability, operating temperature, rated power,

supply voltage change, load change.

±20 PPM is available for extended commercial temperature

only.

VC_U

VC_L

Lin

–

T_use

Vdd

1.55

–

-20

-40

1.71

2.25

2.52

2.97

–

Upper Control Voltage

Lower Control Voltage

Linearity

Frequency Change Polarity

Operating Temperature Range

Supply Voltage

All Vdds. Voltage at which maximum deviation (+60, +120,

+240 PPM) is guaranteed.

All Vdds. Voltage at which maximum deviation (-60, -120,

-240 PPM) is guaranteed.

Extended Commercial

Industrial

Current Consumption

Duty Cycle

Rise/Fall Time

Output Voltage High

Idd

Tr, Tf

VOH

No load condition, f = 20 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V

No load condition, f = 20 MHz, Vdd = 1.8 V

All Vdds. f <= 75 MHz

All Vdds. f > 75 MHz

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

Vdd = 1.8 V, 20% - 80% Vdd level

IOH = -4 mA (Vdd = 3.3 V)

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

IOH = -2 mA (Vdd = 1.8 V)

IOL = 4 mA (Vdd = 3.3 V)

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

IOL = 2 mA (Vdd = 1.8 V)

Maximum frequency and supply voltage

Contact SiTime for higher output load

Time @ minimum supply voltage to be zero

f = 75 MHz, Vdd = 1.8 V

f = 75 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V

f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz,

VDD = 2.5 V, 2.8 V, or 3.3 V

f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz,

VDD = 1.8 V

Output Voltage Low

VOL

–

%Vdd

Output Load

Start-up Time

RMS Period Jitter

RMS Phase Jitter (random)

T_osc

T_jitt

T_phj

–

0.6

0.8

–

Notes:

1. Absolute Pull Range (APR) is defined as the guaranteed pull range over temperature and voltage.

2. APR = pull range (PR) - frequency stability (F_stab).

SiTime Corporation

Rev. 1.51

990 Almanor Avenue

Sunnyvale, CA 94085

(408) 328-4400

www.sitime.com

Revised August 9. 2010

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