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

®
• 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
SF1174B
374.00 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Suitable for lead-free soldering - Max Soldering Profile
Value
Units
+10
dBm
30
VDC
-40 to +85
°C
260°C for 30 s
SM5050-8
Electrical Characteristics
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
Sym
f_C
IL
Notes
1
Min
Typ
Max
374.000
8.7
10.0
Units
MHz
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 (YY=year, WW=week, S=shift)
External L-C
SM5050-8 5 X 5 mm Nominal Footprint
447, YYWWS
Electrical Connections
Connection
Terminals
100
12pf
12pf
pin 2
pin 7
Port 1 Hot
2
Port 1 Gnd Return
3
Port 2 Hot
6
27nH
SAW Filter
TOP VIEW
27nH
200
100
12pf
pin 3
12pf
pin 6
Port 2 Gnd Return
7
Case Ground
All others
RF IC
RF IC
Notes:
figure 1
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 nom-
inal center frequency, fc.
3. Rejection is measured as attenuation below the minimum IL point in the pass-
band. Rejection in final user application is dependent on PCB layout and exter-
nal 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.
9. ©Copyright 1999, RF Monolithics Inc.
10. Electrostatic Sensitive Device. Observe precautions for handling.
RF Monolithics, Inc. Phone: [phone]
Fax: [phone]
RFM Europe
Phone: [phone]
Fax: [phone]
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [e-mail]
Page 1 of 3
http://www.rfm.com
SF1174B 532-1174-001 121604 RevA