tfs400c.doc

version 3.2

13.06.2000

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SAW Filter Specification

TFS 400 C

1/5

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VI TELEFILTER

Vectron International Inc.

Potsdamer Straße 18

267 Lowell Road

D 14 513 TELTOW / Germany

Hudson, NH 03051 / USA

Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30

Tel: (603) 598-0070 Fax: (603) 598-0075

E-Mail: tft@telefilter.com

E-Mail: vti@vtinh.com

VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is

assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.

Measurement condition

Ambient temperature:

23

°C

Input power level:

0 dBm

Terminating impedances

for input:

500 Ω // -1 pF

for output: 500 Ω // -1 pF

Characteristics

Remark:

Reference level for the relative attenuation arel of the TFS 400 C is the minimum of the pass band attenuation amin. The minimum of the pass band

attenuation amin is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 3

dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 400 MHz without tolerance. The given values for the

relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also if the centre frequency fo is shifted

due to the temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre frequency fc.

D a t a

typ. value

tolerance/limit

Insertion loss

ae = amin

3,7

dB

max.

6,5

dB

(Reference level)

Nominal frequency

fN

-

400,000 MHz

Centre frequency

fc

400,008 MHz

Guaranteed 1,5 dB signal band width

BW

-

min.

160

kHz

Relative attenuation

arel

fN ± 80 kHz

0.8

dB

max.

1,5

dB

fN ± 200 kHz ... fN ± 400 kHz

8

dB

min.

2

dB

fN ± 400 kHz ... fN ± 600 kHz

30

dB

min.

25

dB

fN ± 600 kHz ... fN ±1 MHz

52

dB

min.

40

dB

fN ±

1 MHz ... fN ±3 MHz

54

dB

min.

45

dB

fN ±3 MHz

61

dB

min.

55

dB

Group delay ripple

GD

fN ± 70 kHz

0,7

µs

max.

2

µs

Operating temperature range

- 10

°C ... + 55 °C

Temperature coefficient of frequency

TC

ca. - 0.036

ppm/K²

Frequency inversion temperature

+ 20

°C

Generated:

Checked / approved: