SAW FILTER

HDF447.725M

S3

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Page 3 of 8

1.SCOPE

This specification shall cover the characteristics of SAW filter with 447.725MHz used for

remote-control security.

2. ELECTRICAL SPECIFICATION

DC Voltage VDC

10V

AC Voltage Vpp

10V50Hz/60Hz

Storage temperature

-45℃ to +85℃

RF Power Dissipation

0dBm

Electronic Characteristics

2-1.Type frequency response

2-2.Electrical characteristics

Characteristics

Sym

Notes

Min.

Typical

Max.

Units

Center

Absolute Frequency

Fc

1.2

446.650

447.725

447.800

M Hz

Frequency

tolerance from Nominal Δfc

±75

KHz

Insertion Loss

IL

1

1.7

3.0

dB

3dB Bandwidth

1.2

500

700

800

KHz

Rejection

At fo-21.4MHz (Image)

1

40

50

dB

At fo-10.7 MHz (LO)

16

40

Ultimate

80

Temperature

Operating case temp.

Tc

3.4

-35

+85

℃

characteristics Tumover temp.

To

22

37

62

℃

Tumover Frequency

fo

fc

MHz

Freq.temp.coefficient

FTC

0.032

ppm/℃

Frequency aging

5

<±10

ppm/y