SF1174B Datasheet, PDF (1/3 Pages) RF Monolithics, Inc – 374.00 MHz SAW Filter

SF1174B
• Designed for WLAN IF Applications
• Low Insertion Loss
• 5.0 x 5.0 x 1.7 mm Suface-Mount Case
• Differential or Single Ended Input and Output
• Complies with Directive 2002/95/EC (RoHS)
Pb
374.00 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Terminals
Storage Temperature Range
Suitable for lead-free soldering - Maximum Soldering Profile
Value
Units
+10
dBm
30
VDC
-40 to +85
°C
260°C for 30 s
Electrical Characteristics
SM5050-8
Characteristic
Nominal Center Frequency
Passband
Sym Notes
Min
Typ
Max
Units
f_C
1
374.000
MHz
Insertion Loss at fc
IL
8.7
10.0
dB
Rejection
3 dB Passband BW₃
1, 2
17
Amplitude Ripple over fc ±7.0 MHz
Group Delay Variation over fc ±7.0 GDV
fc -100 to fc -33 MHz
1, 2, 3
45
23
MHz
0.8
1.0
dB_P-P
61
100
ns_P-P
54
fc -33 to fc -22 MHz
40
53
fc -22 to fc -16.5 MHz
fc +16.5 to fc +22 MHz
30
40
dB
30
44
fc +22 to fc +43 MHz
35
48
fc +43 to fc +100 MHz
40
49
Operating Temperature Range
T_A
1
-10
+85
°C
Differential Input / Output Impedance Match
Case Style
Lid Symbolization (Y=year, WW=week, S=shift)
Electrical Connections
Connection
Port 1 Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Terminals
2
3
6
7
All others
External L-C
SM5050-8 5 X 5 mm Nominal Footprint
447, YWWS
100
12pf
12pf
pin 2
pin 7
27nH
SAW Filter
TOP VIEW
27nH
200
100
12pf
pin 3
12pf
pin 6
RF IC
RF IC
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Unless noted otherwise, all specifications apply over the operating temper-
ature 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 frequency, 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. "LRIP" or "L" after the part number indicates "low rate initial production"
and "ENG" or "E" indicates "engineering prototypes."
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, impedances 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. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered
trademarks of RF Monolithics, Inc.
www.RFM.com E-mail: [e-mail]
©2009 by RF Monolithics, Inc.
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SF1174B - 3/16/09