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B3893 Datasheet(PDF) 4 Page - EPCOS

Part # B3893
Description  SAW IF filter GSM
Download  7 Pages
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Manufacturer  EPCOS [EPCOS]
Direct Link  http://www.epcos.com
Logo EPCOS - EPCOS

B3893 Datasheet(HTML) 4 Page - EPCOS

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4
February 28, 2008
B3893
248.6 MHz
Please read
cautions and warnings and
important notes at the end of this document.
SAW Components
SAW IF filter
Data sheet
Characteristics
Temperature range for specification:
T
= –20 ˚C to +85 ˚C
Terminating source impedance:
ZS =50 Ω
Termnating load impedance:
ZL = 200 Ω
min.
typ.
max.
Nominal frequency
fN
—
248.6
—
MHz
Minimum insertion attenuation
α
min
—
1.3
3.5
dB
Passband width
α
rel ≤ 3.0 dB
B3.0dB
5.0
7.2
—
MHz
Amplitude ripple (p-p)
∆α
fN ± 352.0 kHz
—
0.2
0.5
dB
Group delay ripple (p-p)
∆τ
fN ± 352.0 kHz
—
30
100
ns
Relative attenuation (relative to
α
min)
α
rel
10.0 MHz
...
fN – 29.2 MHz
45
70
—
dB
@ fN + 22.80 MHz
45
60
—
dB
@ fN + 52.00 MHz
45
70
—
dB
@ fN + 74.80 MHz
45
70
—
dB
@ fN + 104.0 MHz
45
55
—
dB
@ fN + 126.8 MHz
45
70
—
dB
Temperature coefficient of frequency
TCf
—
–36
—
ppm/K
Maximum ratings
Operable temperature range T
–40/+85
˚C
Storage temperature range
Tstg
–40/+85
˚C
DC voltage
VDC
0
V
Input Power
PIN
10
dBm
Input Power
PIN
20
dBm
t <= 100 hours


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