Document
FILTERS FOR FM APPLICATIONS–HIGHLY SELECTIVE, 3 ELEMENTS SFT MA/MS 10.7MHz
The SFT 10.7 ceramic filters are single substrate, 3 element devices that offer 1.5 times more selectivity than the conventional SFE Series of filters. The improved spurious suppression of these filters eliminates the need for cascading multiple filtering devices; therefore, it is possible to design a more compact circuit board configuration.
FEATURES
s It has an excellent shape factor, and it is possible to obtain 1.5 times more
excellent selectivity than SFE 10.7 Series (by detuning ±300 or 400kHz). s Good performance of spurious suppression. s Having the same terminal pitch as the SFE 10.7 Series, it easily replaces that series. s By replacing two SFE 10.7 Series filters with one SFT 10.7 filter, more compact sets can be made. s Well-suited for 1-chip ICs.
DIMENSIONS: mm
10.0
T10.7*
M
6.0 5.0
0.3 ± 0.1
2.5 2.5 ቢባቤ
123 3.0 ± 0.1
: EIA-J Date Code
TEST CIRCUIT
Rg S.S.G.
R1 ቢ ባ ቤ R2 C
*Varies by part number
Rg + R1 = 330⍀ C = 10pF (including stray capacitance and input capacitance of RF Voltmeter.)
RF Voltmeter
ቢ INPUT ባ GROUND ቤ OUTPUT
SPECIFICATIONS Part Number
3dB Bandwidth (kHz)
40dB Bandwidth (kHz) max.
Ripple within 3dB Bandwidth (dB)
SFT MA/MS 10.7MHz
Insertion Loss (dB) max.
Spurious Attenuation (9 ~ 12MHz) (dB) min.
SFT10.7MA5
280 ± 50
700 (630)
0.5 max.
6±2
50 (60)
SFT10.7MS2
230 ± 40
650 (580)
0.5 max.
6±2
50 (60)
SFT10.7MS3
180 ± 40
• Input/output impedance: 330⍀ • High selectivity is achieved by replacing with SFT 10.7 Series
PART NUMBERING SYSTEM
550 (500)
0.5 max.
8±2
50 (60) ( ) Typical value
FILTERS
SERIES
SFT
10.7M
A5
–
Z
CENTER FREQUENCY in MHz
RATING, CHARACTERISTICS
RANK OF CENTER FREQUENCY
̆Applicable in North American market only. ̄Applicable in European market only. For more detailed information regarding this product line in North America, see Catalog No. E-06-E. To receive additional information on Murata Products call 1-800 -831-9172. For more detailed information regarding this product line in Europe, see Catalog No. P61E-4.
107
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