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PDF B4540 Data sheet ( Hoja de datos )
| Número de pieza | B4540 | |
| Descripción | SAW Components | |
| Fabricantes | EPCOS | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de B4540 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Wireless Local Loop/Broadband Access Filters
Series/Type:
B4540
The following products presented in this data sheet are being withdrawn.
Ordering Code
Substitute Product
B39111B4540Z710
Date of
Withdrawal
2001-05-25
Deadline Last
Orders
2001-06-30
Last Shipments
2001-09-30
For further information please contact your nearest EPCOS sales office, which will also support
you in selecting a suitable substitute. The addresses of our worldwide sales network are
presented at www.epcos.com/sales.
1 page  
SAW Components
Bandpass Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T = -40 to + 85 ˚C
ZS = 1,1 kΩ || 390 nH
ZL = 0,9 kΩ || 340 nH
Nominal frequency
min.
typ.
fN — 112,32
B4540
112,32 MHz
max.
— MHz
Insertion attenuation at fN
(including losses in matching network)
Reference level for the following data
αN
—
13,5
15,0 dB
Pass bandwidth
Β3dB
—
1,6
Group delay ripple (p-p)
∆τ
fN -700,0 kHz .. fN+700,0 kHz
— 100
Relative attenuation (relative to αN)
αrel
fN − 30,00 MHz ... fN − 6,32 MHz
fN − 6,32 MHz ... fN − 4,00 MHz
fN − 4,00 MHz ... fN − 1,72 MHz
fN + 1,72 MHz ... fN + 4,00 MHz
fN + 4,00 MHz ... fN + 6,00 MHz
fN + 6,00 MHz ... fN + 8,00 MHz
fN + 8,00 MHz ... fN + 30,00 MHz
fN + 17,28 MHz
Impedance at fN
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
Temperature coefficient of frequency 1)
Turnover temperature
TCf
T0
45 59
40 53
30 42
30 41
40 50
35 41
40 45
45 57
— 3,9 || 5,0
— 3,3 || 6,1
— – 0,03
— 30
1) Temperature dependance of fc: fc(T) = fc(T0)(1 + TCf(T – T0)2)
— MHz
150 ns
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— kΩ || pF
— kΩ || pF
— ppm/K2
— ˚C
Matching network to 50 Ω (element values depend on pcb layout)
Ls1 = 330 nH
Ls2 = 270 nH
3 Apr 04, 2001
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet B4540.PDF ] | |
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