Preliminary format of data sheet

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OFW EM EU

Page 2 of 3

Nov. 18, 1998

SAW Components

Data Sheet

B4811

188,0 MHz

Low-Loss Filter

Characteristics

Operating temperature range:

T

= -25 ˚C to + 75 ˚C

Terminating source impedance:

Terminating load impedance:

External coil

min.

typ.

max.

Center frequency

—

188,0

—

MHz

(center frequency between 3 dB points)

Minimum insertion attenuation

α

min

3,5

5,0

6,5

dB

(including matching network)

Variation in insertion loss

∆α

min

—

1,0

3,0

dB

Amplitude ripple in passband (p-p)

∆α

—

1,0

2,0

dB

—

1,5

3,0

dB

τ

3,0

4,0

5,0

µs

Group delay ripple (p-p)

∆τ

—

1,0

1,5

µs

Relative attenuation (relative to

α

α

rel

6,5

8

—

dB

18

25

—

dB

30

40

—

dB

35

48

—

dB

36

50

—

dB

42

50

—

dB

50

55

—

dB

Impedance at 188,0 MHz

Input:

=

—

580 ||3,4

—

Ω || pF

Output:

—

820 ||2,8

—

Ω || pF

—

– 0,036

—

Turnover temperature

—20

—

˚C