Datasheet > TFH44A

TFH44A

更新时间： 2024-11-25 08:49:51

品牌	Logo	应用领域
VECTRON		过滤器
页数	文件大小	规格书
5页	42K
描述
Filter Specification

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TFH44A 技术参数

生命周期：	Transferred	Reach Compliance Code：	compliant
风险等级：	5.6	其他特性：	TAPE AND REEL
中心频率或截止频率 (fo/fc)：	44 MHz	滤波器类型：	SAW FILTER
高度：	2.62 mm	输入阻抗：	50 OHM
最大插入损耗：	22 dB	长度：	24.64 mm
安装类型：	SURFACE MOUNT	功能数量：	1
输出阻抗：	50 OHM Ω	物理尺寸：	L24.64XB9.0XH2.62 (mm)/L0.97XB0.354XH0.103 (inch)
宽度：	9 mm	Base Number Matches：	1

TFH44A 数据手册

File name : TFH44A.doc

Version 1.0

13.03.2001

VI TELEFILTER

Filter Specification

TFH 44A

1/5

1. Measurement condition

Ambient temperature T_A:

25 °C

Input power level:

0 dBm.

Terminating impedances at f :

for input:

50 Ω

0 pF.

for output:

2. Characteristics

Remark:

The insertion loss a is defined as the insertion loss at the nominal frequency f_N. Reference level for the relative attenuation a

of the TFS 44A

rel

is the insertion loss. The reference frequency f is the arithmetic mean value of the upper and lower frequencies at the 3 dB filter attenuation level

relative to the insertion loss a . The temperature coefficient of frequency Tc_fis valid both for the centre frequency f and the frequency response

of the filter in the operating temperature range.

Data

typical values

tolerance / limit

Insertion loss (Reference level)

19,8 dB

max. 22

MHz

Nominal frequency

Centre frequency

f_N

f_C

MHz

Pass band (PB) :

f_C... f_C± 2,5 MHz

Amplitude ripple in PB (p-p) :

0,35 dB

max.

0,55 dB

Bandwidth at ambient temperature:

0,55 dB - band width

5,52 MHz

5,72 MHz

6,07 MHz

6,97 MHz

7,40 MHz

min.

max.

5,0

6,0

MHz

dB - band width

7,67 MHz

Relative attenuation

rel

f_N

2,50 MHz

0,35 dB

max.

0,55 dB

...

f_N

2,50 MHz ... f_N

3,835 MHz ... f_N

3,0

MHz

< 2,7 dB

max.

min.

43...50

Group delay ( mean value in PB )

Group delay ripple in f_N... f_N± 2,1 MHz (p-p) *)

Deviation from linear phase in f_N... f_N± 2,1 MHz (p-p)

2,1 µs

max.

3,5°

µs

2° ( r.m.s. 0,7° )

Triple transit attenuation compared to main signal

Crosstalk

Temperature coefficient of frequency ( Tc_f)

Frequency deviation of f_Nover temperature :

- 75

ppm/K

∆f (Hz) = Tc_f(ppm/K) x (T - T_A) x f_N(MHz)

Operating temperature range

Storage temperature range

25 °C

- 25 °C ... + 85 °C

* ) measured with smoothing aperture of 78,75 kHz.

Generated:

Dunzow W.P.

Dr. Bert Wall

Checked/Approved:

VI TELEFILTER

Vectron International, Inc.

Potsdamer Straße 18

267 Lowell Road

D 14 513 TELTOW / Germany

Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30

E-Mail: tft@telefilter.com

Hudson, NH 03051 / USA

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

Email: 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.

12 3 4 5

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