RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 1 of 12
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF1115A-100605
Electrical Characteristics
Characteristic Sym Notes Min Typ Max Units
Nominal Center Frequency
f
C
1
199.000 MHz
Passband Insertion Loss at fc
IL
7.0 dB
1 db Passband
BW
1
1, 2
±100 kHz
Amplitude Ripple over fc±100 kHz 0.5
dB
P-P
Group Delay Variation over fc ±100 kHz GDV 500
ns
P-P
Rejection Room Temperature fc+800 to fc+400 kHz
1, 2, 3
10
dB
Room Temperature fc-800 to fc-400 kHz 10
fc-800 to fc-600 and fc+600 to fc+800 kHz 20
fc-30 MHz to fc-800 kHz 30
fc+800 kHz to fc+17 MHz 30
fc-80 MHz to fc-30 MHz 35
fc+17 Mhz to fc+80 MHz 35
Operating Temperature Range
T
A
1 -35
+85 °C
Frequency Temperature Coefficient
FTC
1
0.032
ppm/°C
2
SM9171-10
• Designed for GSM BTS Receiver IF Applications
• Compatible with National Semiconductor Chip Set
• Very Flexible Impedance Matching
• Unbalanced or Balanced Input or Output
• 9.1 x 7.1 mm Version of the SF1115A-1
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating Value Units
Maximum Incident Power in Passband +15 dBm
Max. DC voltage between any 2 terminals 30 VDC
Storage Temperature Range -40 to +85 °C
Suitable for lead-free soldering - Max. Soldering Profile 260°C for 30 s
199 MHz
SAW Filter
SF1115A
Connection Terminals
Port 1 Hot 10
Port 1 Gnd Return 1
Port 2 Hot 5
Port 2 Gnd Return 6
Case Ground All others
Electrical Connections
Impedance Matching to 50Ω Unbalanced External L-C
Impedance Matching to 200Ω Balanced External L-C
Impedance Matching to 50Ω Input / 400Ω Output External L-C
Case Style SMP9171-10 9.1 x 7.1 mm Nominal Footprint
Lid Symbolization (YY = year, WW = week) RFM SF1115A YYWW
Pb
Notes:
1. Unless noted otherwise, all specifications apply over the operating temperature range with filter
soldered to the specified demonstration board with impedance matching to 50 Ω and measured
with 50 Ω network analyzer.
2. Unless noted otherwise, all frequency specifications are referenced to the nominal center fre-
quency, fc.
3. Rejection is measured as attenuation below the minimum IL point in the passband. Rejection in
final user application is dependent on PCB layout and external impedance matching design.
See Application Note No. 42 for details.
4. The turnover temperature, T
O
, is the temperature of maximum (or turnover) frequency, f
o
. The
nominal frequency at any case temperature, T
c
, may be calculated from: f=f
o
[1-FTC(T
o
-T
c
)
2
].
5. The design, manufacturing process, and specifications of this filter are subject to change.
6. Either Port 1 or Port 2 may be used for either input or output in the design. However, imped-
ances and impedance matching may vary between Port 1 and Port 2, so that the filter must
always be installed in one direction per the circuit design.
7. US and international patents may apply.
8. Electrostatic Sensitive Device. Observe precautions for handling.
