B7739 Datasheet, PDF (3/8 Pages) EPCOS – SAW filter 707.0 MHz

SAW Components
SAW filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –30 ˚C to +85 ˚C
Z_S = 50 Ω
Z_L = 50 Ω
B7739
707.0 MHz
Center frequency
min. typ. max.
@ 25 ˚C
f_C
— 707.0 — MHz
Maximum insertion attenuation
α_max
704.5 ... 709.5 MHz
—
2.6
3.0 dB_INT1)
Amplitude ripple (p-p)
∆α
704.5 ... 709.5 MHz
—
0.4
2.0 dB
Return Loss (Input/Output)
704.5 ... 709.5 MHz
10.0 16.0
—
Group delay ripple (p-p)
704.5 ... 709.5 MHz
Attenuation
0.1
678.0
692.0
698.0
710.0
716.0
722.0
738.0
812.0
948.0
... 678.0
... 692.0
... 698.0
... 704.0
... 716.0
... 722.0
... 738.0
... 812.0
... 948.0
... 2500.0
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
1) _{dBINT is integrated rejection (see formula below)}
—
20
80 ns
40.0 46.0
35.0 40.0
30.0 40.0
4.5²⁾
9.5
4.5³⁾
9.0
30.0 36.0
29.0 34.0
40.0 45.0
45.0 50.0
32.0 37.0
— dB
— dB
— dB_INT
— dB_INT
— dB_INT
— dB_INT
— dB
— dB
— dB
— dB
dB_INT =
∑^{N L-----o---s---s---(--F----n---–----1--)-}₂^{---+-----L----o---s---s---(--F----n---) × (F}n ^{– F}n – 1⁾
---²-----------------------------------------------------------------------------------------------------
F_N – F₁
2) _{7.0dBINT at 25˚C}
3) _{7.0dBINT at 25˚C}
Where Loss(F_n) =
(
10
S₂₁
i
n
d
B
)
⁄
20
N = Number of frequency, insertion pairs
Please read cautions and warnings and
important notes at the end of this document.
3 May 16, 2006