b39901-b3772-z810 EPCOS AG, b39901-b3772-z810 Datasheet - Page 3

• Manufacturer Part Number: b39901-b3772-z810
• Description: Front-end Filters Narrow-band
• Manufacturer: EPCOS AG

Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Center frequency
(center frequency between 3 dB points)
Minimum insertion attenuation
Pass band (relative to
Filter bandwidth
Relative attenuation (relative to
Impedance for pass band matching
2)
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.
SAW Components
Low-loss Filter
Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to
including loss in matching elements
excluding loss in matching elements
Input:
Output: Z
1000,00 ...2500,00 MHz
902,25 ... 903,50 MHz
902,10 ... 903,65 MHz
884,00 ... 892,00 MHz
892,00 ... 900,00 MHz
905,30 ... 915,00 MHz
915,00 ... 924,00 MHz
924,00 ...1000,00 MHz
min
Z
10,00 ... 884,00 MHz
IN
OUT
)
= R
= R
min
IN
OUT
2)
)
|| C
|| C
rel
IN
OUT
T
Z
Z
dB
A
S
L
3
= –40 ... +95˚C
= 50
= 50
f
C
min
rel
Apr 01, 2005
and matching network
and matching network
min.
2,06
55
50
25
20
40
55
52
—
—
—
—
—
—
—
410 || 1,1
410 || 1,1
902,875
2,18
typ.
3,0
2,5
1,3
1,3
59
54
28
23
44
59
56
max.
2,30
902,875 MHz
3,7
3,2
2,0
3,0
—
—
—
—
—
—
—
—
—
—
B3772
MHz
dB
dB
dB
dB
MHz
dB
dB
dB
dB
dB
dB
dB
|| pF
|| pF