3 April 30, 2007
B3584
173.075 MHz
SAW Components
SAW filter
Data sheet
Please read
cautions and warnings and
important notes
at the end of this document.
Characteristics
Temperature range for specification: T
A
= –30 ˚C to +60 ˚C
Terminating source impedance: Z
S
=50Ωand matching network
Terminating load impedance: Z
L
=50Ωand matching network
Maximum ratings
min. typ.
@ 25 ˚C
max.
Center frequency f
C
— 173.075 — MHz
Maximum insertion attenuation
172.725 ... 173.425MHz α
max
— 3.9 5.0 dB
Amplitude ripple (p-p) ∆α
172.725 ... 173.425MHz — 1.0 2.0 dB
Relative attenuation (relative to α
max
) α
rel
10.00 ... 129.00 MHz 48 52 — dB
129.00 ... 133.00 MHz 50 54 — dB
151.00 ... 152.00MHz 40 48 — dB
180.00 ... 182.00 MHz 26 33 — dB
182.00 ... 190.00 MHz 25 33 — dB
190.00 ... 220.00 MHz 38 45 — dB
220.00 ... 500.00 MHz 45 48 — dB
Impedance for pass band matching
1)
1)
Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to source- and to load
impedance (here 50 Ohm). After removal of the SAW filter the input impedance of the input and output match-
ing network is calculated. The conjugate complex value of these characteristic impedances are the input and
output impedances for flat passband. For more details we refer to EPCOS application note #4.
Input: Z
IN
=R
IN
|| C
IN
— 165 || 1.7 — Ω || pF
Output: Z
OUT
=R
OUT
|| C
OUT
—
165 || 1.7
— Ω || pF
Temperature coefficient of frequency TC
f
— –70 — ppm/K
Operable temperature range T
A
–45/+125 ˚C
Storage temperature range T
stg
–45/+125 ˚C
DC voltage V
DC
0 V
Source power P
S
0 dBm source impedance 50 Ω
