B39871-B3574-U310

更新时间： 2024-02-20 17:04:03

品牌	Logo	应用领域
爱普科斯 - EPCOS		/
页数	文件大小	规格书
6页	77K
描述
Low Loss Filter

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数据手册

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B39871-B3574-U310 数据手册

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SAW Components

Low Loss Filter

B3574

868,30 MHz

Data Sheet

Characteristics

Reference temperature:

T_A= -45 ... 95 ˚C

Terminating source impedance:

Terminating load impedance:

Z_S= 50 Ω and matching network

Z_L= 50 Ω and matching network

min.

typ.

max.

f_C

—

868,30

—

MHz

Center frequency

(center frequency between 3 dB points)

Minimum insertion attenuation

α_min

868,20 ... 868,40 MHz

(including loss in matching coils)

Amplitude ripple (p-p)

—

4,2

5,7

868,20 ... 868,40 MHz

868,16 ... 868,44 MHz

—

0,5

0,7

2,0

3,0

Relative attenuation (relative to α_min

)

α_rel

10,00 ... 600,00 MHz

600,00 ... 800,00 MHz

800,00 ... 848,00 MHz

848,00 ... 863,00 MHz

863,00 ... 866,80 MHz

870,00 ... 872,00 MHz

872,00 ... 882,00 MHz

882,00 ...1000,00 MHz

—

Impedance for pass band matching ²⁾

Input: Z_IN= R_IN|| C_IN

Output: Z_OUT= R_OUT|| C_OUT

—

360 || 1,3

380 || 1,3

—

Ω || pF

Temperature coefficient of frequency ¹⁾

Frequency inversion point

TC_f

T₀

—

-0,03

—

ppm/K²

°C

¹⁾Temperature dependance of f_C: f_C(T_A) = f_C(T₀) (1 + TC_f(T_A- T₀)²)

²⁾Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to

source- and to load impedance (here 50 Ohm). After the SAW filter is removed and input imped-

ance into the input matching / output matching network is calculated.

The conjugate complex value of these characteristic impedances are the input and output imped-

ances for flat passband. For more details, we refer to EPCOS application note #4.

Sep 05, 2002

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