Preliminary
SF1215D
• CDMA 450 F-Band RF SAW Filter
• 3.8 x 3.8 x 1.4 mm Surface-mount Package
• Complies with Directive 2002/95/EC (RoHS)
Pb
Value
+30
30
-40 to +85
260°C for 30 s
423.75 MHz
SAW Filter
Units
dBm
VDC
°C
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
SM3838-6
Electrical Characteristics
Characteristic
Nominal 1 dB Center Frequency
Passband Insertion Loss
VSWR
Rejection
421.6 to 425.9 MHz
421.6 to 425.9 MHz
0.3 to 411.6 MHz
411.6 to 415.9 MHz
442.0 to 600.0 MHz
600.0 to 1200 MHz
1200 to 2000 MHz
Operating Temperature Range
Impedance at f
c
Source, single ended
Load, single ended
Case Style
Lid Symbolization (Y=year, WW=week, S=shift) dot=pin 1 indicator
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
T
A
1
1, 2, 3
40
35
40
30
20
-30
50 ohm
50 ohm
SM3838-6 3.8 x 3.8 mm Nominal Footprint
644, YWWS
1000 Pieces/Reel
3000 Pieces/Reel
Sym
f
C
IL
Notes
1
Min
Typ
423.75
2.7
1.5:1
48
47
47
40
35
Max
3.5
2:1
Units
MHz
dB
dB
+80
°C
Electrical Connections
Connection
Port 1
Port 2
Case Ground
Terminals
2
5
All others
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
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.
Unless noted otherwise, all frequency specifications are referenced to the
nominal center frequency, fc.
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.
"LRIP" or "L" after the part number indicates "low rate initial production"
5.
6.
and "ENG" or "E" indicates "engineering prototypes."
The design, manufacturing process, and specifications of this filter are
subject to change.
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.
US and international patents may apply.
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered
trademarks of RF Monolithics, Inc.
7.
8.
4.
www.RFM.com E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Page 1 of 5
SF1215D - 12/12/08
SM3838-6 Case
6-Terminal Ceramic Surface-Mount Case
3.8 X 3.8 mm Nominal Footprint
Case Dimensions
Dimension
Min
A
B
C
D
E
G
H
I
J
3.60
3.60
1.30
0.95
2.39
0.90
1.90
0.50
1.70
mm
Nom
3.80
3.80
1.50
1.10
2.54
1.0
2.0
0.6
1.8
Inches
Max
4.0
4.0
1.70
1.25
2.69
1.10
2.10
0.70
1.90
Min
0.14
0.14
0.05
0.037
0.090
0.035
0.75
0.020
0.067
Nom
0.15
0.15
0.06
0.043
0.10
0.04
0.08
0.024
0.07
Max
0.16
0.16
0.067
0.05
0.110
0.043
0.83
0.028
0.075
0.036
(0.91)
0.029 TYP.
(0.74)
0.050 TYP.
(1.27)
0.176 REF.
(4.47)
Electrical Connections
Connection
Port 1
Port 2
Single Ended Input
Single Ended Output
Ground
0.129 REF.
(3.28)
Terminals
2
5
All others
0.066
(1.68)
0.055 TYP.
(1.40)
Single Ended Operation Only
Dot indicates Pin 1
Materials
Solder Pad Ter- Au plating 30 - 60 µinches (76.2-152 µm) over 80-200
mination
µinches (203-508 µm) Ni.
Lid
Body
Pb Free
Fe-Ni-Co Alloy Electroless Nickel Plate (8-11% Phospho-
rus) 100-200 µinches Thick
Al
2
O
3
Ceramic
PCB Footprint
TOP VIEW
B
1
6
6
C
BOTTOM VIEW
G
H
1
644
YWWS
A 2
5
E
5
2
I
4
4
D
J
3
3
www.RFM.com E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Page 5 of 5
SF1215D - 12/12/08
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