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HDF315M

S3

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Page 4 of 7

2.2

Electrical Characteristics

Characteristic

Sym

Notes

Min

Typical

Max

Units

Absolute frequency

Fc

1.2

314.92

315.00

315.08

MHz

Center

frequency

Tolerance from nominal

Δfc

±80

KHz

Insertion Loss

IL

1

3.0

5.0

dB

3dB Bandwidth

BW3

1.2

500

700

800

KHz

Passband Ripple (Fc±400 KHz)

0.2

0.5

dB

At fo-21.4MHz (Image)

40

50

dB

At fo-10.7 MHz (LO)

16

40

dB

Rejection

Ultimate

1

80

dB

Operating case temp.

Tc

-35

+85

℃

Tumor temp.

To

22

37

62

℃

Tumover Frequency

fo

fc

MHz

Temperature

characteristics

Fre.temp.coeficient

FTC

3.4

0.032

ppm/

℃

Frequency aging

5

<±10

ppm/y

Note:

1. Typical test circuit is shown as below.

2. Passband and reject bands are specified in reference to fc.

3. The turnover temperature, To, is the temperature at the maximum frequency, Fo.

4. The nominal frequency at any case temperature, Tc, inside the operating temperature range may

be calculated from:f=fo[1-FTC(To-Tc)

5.Typical aging is for 10 years.

Cp1 =10pF, Ls2 =43nH*, Ls3 =43nH*, Cp4 =10pF

Ls2 = Ls3 = 6 turns of 0.51mm insulated Copper,2.5mm ID.