B7646 データシートの表示（PDF） - EPCOS AG
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B7646 Datasheet PDF : 11 Pages
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SAW Components
SAW Duplexer
Data sheet
Characteristics
Temperature range for specification:
Antenna terminating impedance:
TX terminating impedance:
RX terminating impedance:
B7646
1950 / 2140 MHz
T = –15 ˚C to +80 ˚C
ZANT=
ZTX =
ZRX =
50 Ω
50 Ω
50 Ω
Characterisitcs TX - ANT
Center frequency
min. typ. max.
@ 25 ˚C
fC
— 1950.0 — MHz
Maximum insertion attenuation
αmax
1920.0 ... 1980.0 MHz
—
1.6
2.01) dB
Amplitude ripple (p-p)
∆α
1920.0 ... 1980.0 MHz
—
0.45
0.9 dB
Amplitude ripple (p-p)
over any 5 MHz within passband
∆αch
1920.0 ... 1980.0 MHz
—
0.2
0.5 dB
Group delay variation
over any 5 MHz within passband
∆αch
1920.0 ... 1980.0 MHz
—
6
20 ns
Input VSWR (TX port)
1920.0 ... 1980.0 MHz
—
1.5
1.8
Output VSWR (ANT port)
1920.0 ... 1980.0 MHz
—
1.3
1.6
Attenuation
0.3
1000.0
1550.0
1730.0
2110.0
2155.0
2400.0
2500.0
3840.0
5760.0
... 1000.0
... 1550.0
... 1600.0
... 1790.0
... 2155.0
... 2170.0
... 2500.0
... 3840.0
... 3960.0
... 6000.0
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
30
40
— dB
30
36
— dB
35
36.5
— dB
30
43
— dB
43
47
— dB
45
50
— dB
25
32
— dB
20
26
— dB
25
41
— dB
10
20
— dB
1) 2.1 dB in ranges -30...-15oC and +80...+85oC
Please read cautions and warnings and
important notes at the end of this document.
3 October 10, 2007
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