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©2009-2010 by RF Monolithics, Inc. SF2038C - 6/14/10
1. Unless noted othe rwise, all specifica tio ns apply ov er the opera tin g tempera tu re range with f ilter so lder ed to the spec ified d emons tr ation bo ard with i mpeda nce
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. Rejectio n is me asure d as a tten uation bel ow t he mi nimum IL poi nt in t he p ass band. Rej ectio n in final us er appl ica tion i s dependent on PCB layout and e xter nal
impedance matching design. See Application Note No. 42 for details.
4. "LRIP" or " L" after the part numb er indicate s "l ow rate initia l production" and "ENG" or "E" indicates "eng ineering prototypes."
5. The desi gn, manufact uring proce ss, and specifications of this filter are subject to change.
6. Tape and Reel Standard ANSI / EIA 481.
7. Eith er Port 1 or Por t 2 ma y be us ed for ei the r inp ut o r output in t he des ign. However, impedances and impeda nce mat chi ng may var y betwe en Po rt 1 and Port
2, so that the filter mus t always be inst alled in one direc tion per the ci rcuit design .
8. US and international patents may apply.
9. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
Electrical Characteristics
*At l ow te mperature extreme -40 °C
Characteristic Sym Notes Min Typ Max Units
Nominal Center Frequency fC176.500 MHz
Passband Insertion Loss IL 10.8 12.0 dB
1 dB Bandwidth BW1
1
12.0 12.7 MHz
15 dB Bandwidth BW15 17.5 18.0 MHz
30 dB Bandwidth BW30 19.4 20.0 MHz
Amplitude Ripple over fc ±6.0 MHz 0.60 1.3 dBP-P
Group Delay Variation over fc ±6.0 MHz GDV 40 150 nsP-P
Rejection:
1, 3 dB
50 to 64.44 MHz 36 42
64.44 to 66.70 MHz 33 39
86.30 to 87.06 MHz 16* 24
87.06 to 91.50 MHz 23* 34
91.50 to 100.000 MHz 36 40
Operating Temperature Range TA1-40 +85°C
Frequency Temperture Coefficient FTC -87 ppm/°C
Differential Input 175 ohms
Differential Output 180 ohms
Case Style 6SM5050-8 5 x 5 mm Nominal Footprint
Lid Symbolization (Y=year, WW=week, S=shift) See note 4 RFM 913 YWWS
SM5050-8
• Designed for SDARS IF Receiver
• Low Insertion Loss
• 5.0 x 5.0 mm Surface-mo unt Ca se
• Differential or Single-ended Input and Output
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating Value Units
Maximum Incident Power in Passband +10 dBm
Maximum DC Voltage on any Non-ground Terminal 30 VDC
Storage Temperature Range in Tape and Reel -40 to +85 °C
Maximum Soldering Profile 265°C for 10 s
76.500 MHz
SAW Filter
SF2038C
Pb
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
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©2009-2010 by RF Monolithics, Inc. SF2038C - 6/14/10
CH2 S21 LOG 10 dB/ REF -9.3 dB
START 36 . 500 000 M Hz STOP 116 . 500 000 MHz
Cor
10 J un 2009 12: 54: 15
1
2
3 4
1 : 0. 0000 dB 0 . 000 000 MHz
REF=1
CH2 Markers
BW : 12 . 764934 MHz
cent : 76 . 4124 44 MHz
Q: 5. 9861
1_loss : -9 . 6625 dB
SF2038C-DEMO
ENG
Full
CH2 S21 LOG 1 dB/ REF -9.23 dB
CENTER 76 . 500 0 00 MHz SPAN 20 . 000 000 MHz
C
10 Jun 2009 12:55:45
3
4
4 : - . 34000 dB 11 . 118 625 MHz
REF=3
CH2 Markers
mean : -9 . 5214 dB
s. dev : . 15240 dB
p-p : . 71570 dB
SF2038C-DEMO
ENG
Full
Filter Response , 36.5 to 116.5 MHz
Filter Passband Response
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©2009-2010 by RF Monolithics, Inc. SF2038C - 6/14/10
CH2 S21 DEL 100 ns/ REF 495.3 ns
CENTER 76 . 500 0 00 MHz SPAN 2 0 . 000 000 MHz
C
Smo
10 J un 2 0 0 9 1 2:56:23
3
4
4 : -12 . 345 ns 11 . 118 625 MHz
REF=3
CH2 Markers
mean : 490 . 99 ns
s. dev : 10 . 861 ns
p-p : 39 . 520 ns
SF2038C-DEMO
ENG
Full
CH1 S11 1 U FS
Cor
CH3 S2 2 1 U FS
CENT ER 76 . 500 00 0 MH z SPAN 8 0 . 0 00 0 0 0 MHz
Cor
10 Jun 2009 12:53:33
1
1: 43.500 27 . 164 56 . 514 nH 76 . 500 000 MHz
1
1: 33.594 12 . 695 26 . 412 nH 76 . 500 000 MHz
SF2038C-DEMO
ENG
Full
Filter Passband Group Delay Response
Filter S11 and S22 Plots
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©2009-2010 by RF Monolithics, Inc. SF2038C - 6/14/10
Case Dimensions
Dimension mm Inches
Min Nom Max Min Nom Max
A4.80 5.00 5.20 0.189 0.197 0.205
B4.80 5.00 5.20 0.189 0.197 0.205
C1.30 1.50 1.70 0.050 0.060 0.067
D1.98 2.08 2.18 0.078 0.082 0.086
E1.07 1.17 1.27 0.042 0.046 0.050
F0.50 0.64 0.70 0.020 0.025 0.028
G2.39 2.54 2.69 0.094 0.100 0.106
H1.27 0.050
I0.76 0.030
J1.55 0.061
K2.79 0.110
L0.76 0.030
M2.36 0.093
N1.55 0.061
O2.79 0.110
P2.79 0.110
Q2.79 0.110
Materials
Solder Pad
Plating 0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel
Lid Plating 2.0 to 3.0 µm Nickel
Body Al2O3 Ceramic
Pb Free
SM5050-8 Surface-Mount 8-Terminal Ceramic Case
5.0 X 5.0 mm Nominal Footprint
Case Materials
PCB Footprint
H
I
J
K
L
M
N
O
P
Q
Electrical Connections
Connection Terminals
Port 1 Differential Input 1, 2
Port 2 Differential Output 5, 6
Ground All others
Single-ended Operation Return is ground
Differential Operation Return is hot
Dot indicates Pin 1
Test Circuit
L2, L3 270 nH
XFMR1, XFMR 2 3:1
C1, C4 18 pF
C2 15 pF
C3 1 pF
L1 330 nH
XFMR1, XFMR 2 3:1 A
1
2
3
B
7
6
5
4
C
D7
6
5
4
E
F
G
1
2
3
88
TOP VIEW BOTTOM VIEW
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©2009-2010 by RF Monolithics, Inc. SF2038C - 6/14/10
See Detail "A"
13.0
20.2
2.0
12.0
100 REF.
"B" REF.
Detail “A”
Tape and Reel Specifications
“B”
Nominal Size Quantity Per Reel
Inches millimeters
7 178 500
13 330 3000
USER DIRECTION OF FEED
COMPONENT ORIENTATION and DIMENSIONS
Carrier Tape Dimensions
Ao 5.3 mm
Bo 5.3 mm
Ko 2.0 mm
Pitch 8.0 mm
W12.0 mm
PIN #1
