3

Oct 17, 2000

SAW Components

B3684

387,5 MHz

Low-Loss Filter

Data Sheet

Characteristics

Operating temperature:

T

= +15 ... +35 ˚C

Terminating source impedance:

Terminating load impedance:

min.

typ.

max.

Nominal frequency

—

387,5

—

MHz

Maximum insertion attenuation

α

max

385,0 MHz ... 390,0 MHz

—

3,2

3,5

dB

Amplitude ripple (p-p)

∆α

385,0 MHz ... 390,0 MHz

—

0,9

1,4

dB

Return loss (Input and Output)

385,0 MHz ... 390,0 MHz

11,0

12,5

—

dB

Group delay

τ

385,0 MHz ... 390,0 MHz

—

140

180

ns

Deviation from lin. phase (in 1 MHz bandwidth)

∆ϕ

385,0 MHz ... 390,0 MHz

—

0,9

5

˚

Absolute attenuation

α

abs

45,0 MHz ... 81,5 MHz

40

70

—

dB

222,0 MHz ... 300,0 MHz

40

60

—

dB

303,5 MHz ... 345,0 MHz

20

45

—

dB

395,0 MHz ... 396,0 MHz

28

30

—

dB

396,0 MHz ... 400,0 MHz

30

32

—

dB

407,5 MHz ... 475,0 MHz

30

40

—

dB

475,0 MHz ... 1025,0 MHz

40

45

—

dB

1025,0 MHz ... 2000,0 MHz

20

30

—

dB

2000,0 MHz ... 4000,0 MHz

15

17

—

dB

Temperature coefficient of frequency

—

– 36

—

ppm/K