115 MHz SAW Filter
6 MHz Bandwidth
Part Number: SF0115BA03088S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0115BA03088S Rev A 22-Feb-2010
ECN 36650 Page 2 of 4
SPECIFICATION
Parameter Min Typ Max Units
All electrical specifications apply over the full -10ºC to +50ºC operating range and
include allowance for all manufacturing tolerances
Center Frequency FC 1
114.88 115 115.12 MHz
1 dB Bandwidth 2 5.6 6.08 MHz
3 dB Bandwidth 2 6.0 6.44 MHz
40 dB Bandwidth 2 7.75 8.2 MHz
Stopband Rejection, 25 MHz to 100 MHz 45 58 dB
Stopband Rejection, 130 MHz to 1000 MHz 45 53 dB
Minimum Insertion Loss 18.9 20 dB
Passband Amplitude Variation, FC ± 2.8 MHz 3 0.6 0.8 dB p-p
Passband Group Delay Variation, FC ± 2.8 MHz 100 150 ns p-p
Absolute Delay 2.0 2.1 µs
Input VSWR, FC ± 2.8 MHz 4 1.55 1.8 : 1
Output VSWR, FC ± 2.8 MHz 4 1.3 1.8 : 1
Maximum Input Level 20 dBm
Source and Load Impedance 50 Ω
Notes: 1. Defined as the mean of the 10dB frequencies.
2. dB levels are taken to be relative to the insertion loss.
3. Excludes final roll-offs to the 1dB points. Note that ‘Passband Amplitude
Variation’ includes Ripple (fast variations) and Slope (slow variations).
4. When matched using circuit below.
MAXIMUM RATINGS
Parameter Min Max Units
Storage Temperature Range -45 85 ˚C
Operating Temperature Range -10 50 ˚C
Operating Input Power Level - +20 dBm
D.C. Voltage between each pad - 15 VDC
MATCHING CIRCUIT
Typical component values:
Notes:
1. Recommended tolerances: +/-2% inductors, minimum Q=40, +/-5% resistors and capacitors.
2. Component values are for reference only and may change depending on board layout.
Rp1 = 430 Ω Rp2 = 200 Ω
Ls1 = 68 nH Ls2 = 68 nH
Cp1 = 56 pF Cp2 = 56 pF
Input
50 Ω
Single-ended
Output
50 Ω
Single-ended
10 5
1,2,3,4,6,7,8,9