140 MHz SAW Filter
9.3 MHz Bandwidth
Part Number: SF0140BA03173S
IDT • SAW Products • 324 Clark Street, Worcester, MA 01606, USA • Ph 1-508-852-5400 • Fax 1-508-852-8456
www.idt.com DSSF0140BA03173S Rev - 8-Nov-2007
ECN 35765 Page 2 of 3
SPECIFICATION
Parameter Min Typ Max Units
Center Frequency (Fc) 1 - 140.00 - MHz
Insertion Loss 2 - 12.5 14 dB
Lower 1dB Band Edge - 134.33 135.35 MHz
Upper 1dB Band Edge 144.65 145.84 - MHz
Lower 30dB Band Edge 130 131.33 - MHz
Upper 30dB Band Edge - 148.38 150 MHz
Lower 40dB Band Edge 129 131.03 - MHz
Upper 40dB Band Edge - 148.74 151 MHz
Passband Ripple 3 - 0.7 1 dB p-p
In/Out Return Loss at Fc 12 18 - dB
Rejection 2
(70 to 100 MHz)
(100 to 129 MHz)
(151 to 210 MHz)
37
40
40
39
45
47
-
-
-
dB
dB
dB
Temperature Coefficient of Frequency - -86 - ppm/˚C
Ambient Temperature - 25 - ˚C
System Source and Load Impedance 50 Ω
Notes: 1. Defined as the average of the lower and upper 3 dB frequencies.
2. All dB levels are defined relative to the insertion loss.
3. Defined over 135.35 to 144.65 MHz.
MAXIMUM RATINGS
Parameter Min Max Units
Storage Temperature Range -55 85 ˚C
Operating Temperature Range -40 85 ˚C
Input Power Level - +13 dBm
DC Voltage Between Each Terminal - 15 V
MATCHING CIRCUIT
:
Typical component values: Rs1 = 2.4 Ω Rs2 = 2.4 Ω
Ls1 = 36 nH Ls2 = 39 nH
Cp1 = 47 pF Cp2 = 47 pF
Notes:
1. Recommend +/- 2% tolerance components, Typical inductor Q=40.
2. Component values shown are for reference only and may change depending on board layout.
Input
50 Ω Source
Sin
le Ended
Output
50 Ω Load
Sin
le Ended
11 5
12 6 GND GND