3

Jun 12, 2006

B3898

172.80 MHz

SAW Components

SAW IF filter

Data Sheet

Please read

cautions and warnings and

important notes at the end of this document.

Characteristics

Operating temperature range:

T

=

–10 to 85 ˚C

Terminating source impedance:

Terminating load impedance:

200

Ω balanced and matching network

Group delay aperture:

100 kHz

min.

typ.

@ 25 ˚C

max.

Nominal frequency

—

172.8

—

MHz

Minimum insertion attenuation

α

min

—

10.6

12.5

dB

(including matching network)

Amplitude ripple (p-p)

∆α

—

0.8

1.5

dB

Group delay ripple (p-p)

∆τ

—

70

200

ns

Group delay

τ

—

780

1000

ns

VSWR

—

1.3:1

3.0:1

Phase ripple (p-p)

∆ϕ

—

10

13

˚

Pass bandwidth

α

8.84

9.2

—

MHz

Adjacent channel selectivity

ACS

17

22

—

dB

Relative attenuation (relative to

α

α

rel

27

32

—

dB

35

45

—

dB

45

60

—

dB

55

70

—

dB

Input:

—

646 || 13.4

—

Ω || pF

—

932 || 10.4

—

Ω || pF

Temperature coefficient of frequency

—

– 18

—

ppm/K