R1901 查看數據表（PDF） - TDK Corporation

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R1901

SAW Components SAW resonator

TDK Corporation 

SAW Components

SAW resonator

Data sheet

Characteristics

Reference temperature:

Terminating source impedance:

Terminating load impedance:

Center frequency1)

R1901

315.00 MHz

TA = 25 ˚C

ZS = 50 Ω

ZL = 50 Ω

min.

typ.

max.

fC

314.950 315.000 315.050 MHz

Minimum insertion attenuation

αmin

Unloaded quality factor

QU

Ageing of fC

Equivalent circuit elements

Motional capacitance

C1

Motional inductance

L1

Motional resistance

R1

Parallel capacitance2)

C0

Temperature coefficient of frequency3) TCf

Turnover temperature

T0

—

7500

—

—

—

—

—

—

10

1.4

10600

—

1.8 dB

—

–50/+50 ppm

2.382

107.1

20

3.6

–0.032

—

— fF

— µH

28 Ω

— pF

— ppm/K2

30 ˚C

1) Center frequency is defined as maximum of the real part of the admittance.

2) If used in two port configuration (pin 2 - input, pin 5 - output) C0 is reduced by approx. 0.3 pF.

3) Temperature dependence of fC: fC(TA) = fC(T0) (1 + TCf (TA – T0)2)

Maximum ratings

Operable temperature range T

Storage temperature range Tstg

DC voltage

VDC

Source power

PS

–45/+125

–45/+125

12

0

˚C

˚C

V

dBm

Please read cautions and warnings and

important notes at the end of this document.

3 December 20, 2012

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