3

Mar 26, 2001

SAW Components

B7301

400,0 MHz

Low-Loss Filter for Mobile Communication

Data Sheet

Characteristics

Operating temperature range:

T

= -25 ˚C ... +80 ˚C

Terminating source impedance:

Terminating load impedance:

Test matching network to 50

Ω, low pass example (actual element values depend on PCB layout.

S-parameters of transformers TOKO B5FL available on request):

min.

typ.

max.

Nominal frequency

—

400,00

—

MHz

Maximum insertion attenuation

α

max

—

4,3

6,0

dB

(Including losses in matching circuit)

Amplitude ripple (p-p)

∆α

...

—

0,2

2,0

dB

Group delay ripple (p-p)

∆τ

...

—

0,4

1,0

µs

Relative attenuation (relative to

α

α

rel

...

37

53

—

dB

...

22

46

—

dB

...

12

48

—

dB

...

9

25

—

dB

...

9

18

—

dB

...

12

31

—

dB

...

22

39

—

dB

...

37

50

—

dB

Impedance within pass band

Input:

=

||

—

640 || 1,6

—

Ω || pF

Output:

—

640 || 1,4

—

Ω || pF

—

-0,038

—

Frequency inversion point

—36

—

˚C

= 39 nH