B7640 Ver la hoja de datos (PDF) - EPCOS AG
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B7640 Datasheet PDF : 12 Pages
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SAW Components
SAW duplexer
Data Sheet
Characteristics
Temperature range for specification:
ANT terminating impedance:
RX terminating impedance:
TX terminating impedance:
B7640
836.50 / 881.50 MHz
T = –15 ˚C to +80 ˚C
ZANT = 50 Ω
ZRX = 100 Ω (balanced)
ZTX = 50 Ω
Characteristics TX-ANT
Center frequency
fC
Maximum insertion attenuation
αmax
824.0 ... 849.0 MHz
Amplitude ripple (p-p)
∆α
824.0 ... 849.0 MHz
Amplitude ripple in 5 MHz channel (p-p) ∆α
824.0 ... 849.0 MHz
Group delay variation in 5 MHz channel ∆α
824.0 ... 849.0 MHz
VSWR
TX port 824.0
ANT port 824.0
Attenuation
0.3
779.0
869.0
1550.0
1648.0
1984.0
2400.0
2547.0
3406.0
... 849.0
... 849.0
... 779.0
... 804.0
... 894.0
... 1600.0
... 1698.0
... 2170.0
... 2547.0
... 3406.0
... 6000.0
MHz
MHz
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
1) 2.5 dB in ranges –25...-15 ˚C and +80...+85 ˚C
min.
—
typ.
@ 25˚C
836.5
max.
—
MHz
—
1.6
2.31) dB
—
0.4
1.1 dB
—
0.5
0.8 dB
—
10
20 ns
—
1.7
2.0
—
1.5
1.8
30
40
— dB
30
40
— dB
45
49
— dB
35
40
— dB
30
38
— dB
27
36
— dB
18
21
— dB
13
20
— dB
—
5
— dB
Please read cautions and warnings and
important notes at the end of this document.
3 February 23, 2007
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