Datasheet > CMC15915BU1-32.768

CMC15915BU1-32.768

更新时间： 2022-12-29 20:57:37

品牌	Logo	应用领域
纬创 - RALTRON		石英晶振温度补偿晶振
页数	文件大小	规格书
5页	707K
描述
Ultra Low Power 32.768KHz MEMS TCXO

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Ultra Low Power 32.768KHz

MEMS TCXO

Page 1 of 5

CMC159-SERIES

■ Ultra Low power: < 1A

■ Fixed 32.768 kHz

■ No Supply Voltage external bypass capacitors required

■ Frequency Stability over Temperature as low as ±5ppm

■ Small SMD package 1.5 x 0.8 mm

ELECTRICAL SPECIFICATIONS

PARAMETER

SYMBOL

CONDITION

VALUE

Typ.

UNIT

Min.

Max.

Frequency nominal

Supply Voltage

32.768

kHz

f₀

T_a= -40°C to +85°C

1.5

3.63

A

Vs = 1.8V, no load condition,

LVCMOS, T_a= 25°C

0.99

Vs = 3.63V max, T_a= -10°C to +70°C

no load condition

Vs = 1.5V to 3.63V, T_a= -40°C to

+85°C, no load condition

Is does not include output stage

current or load.

Core Supply Current

A

1.52

Commercial

Industrial

-40

+70

+85

C

°C

Operating Temperature

T_a

-5

-10

-20

+10

+20

+10

+13

+22

+0.75

+1.5

ppm

Initial offset is defined as the frequency

deviation from the nominal value at

room temperature after reflow

Frequency Stability vs. Temperature

( without initial offset )

Δf/T_a

-10

-13

-22

Initial offset is defined as the frequency

deviation from the nominal value at

room temperature after reflow

Frequency Stability vs. Temperature

( with initial offset )

Δf/T_a

Δf/Vs

Vs= 1.8V±10%

Vs= 1.5V ~ 3.63V

-0.75

-1.5

Frequency stability vs. Supply Voltage

Power supply Ramp

T_a= -40°C to +85°C, 0 to 90% Vs

100

T_a= -40°C ≤ T_a≤ +60°C, valid output

T_a= +60°C ≤ T_a≤ +70°C, valid output

T_a= +70°C ≤ T_a≤ +85°C, valid output

180

300

350

380

Start-up Time

T _START

Long Term Frequency Stability

Period Jitter RMS

T_a=25°C, Vs=3.3V

-1.0

+1.0

ppm

Δf/T

Cycles = 10,000,T_a=25°C,

Vs= 1.5V ~ 3.63V

Long Term Jitter

81920 cycles ( 2.5 sec ), 100 samples

2.5

s p-p

RALTRON ELECTRONICS . 10400 N.W. 33^{r d}St . Miami, Florida 33172 . U.S.A.

phone: +1-305-593-6033 . fax: +1-305-594-3973 . e-mail: sales@raltron.com . internet: http://www.raltron.com

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