Preliminary Data Sheet
Part Number 856129
44 MHz SAW Filter
Features
• For cable headend IF applications
• Usable bandwidth 6.0 MHz
• High attenuation
• Single-ended operation
• Ceramic Surface Mount Package (SMP)
• Hermetic
• RoHS compliant (2002/95/EC), Pb-free
•
Package Pin Configuration
Surface Mount 24.6 x 9.00 x 2.31 mm Bottom View
6710 9 8
543
2
1
Pin No. Description
1 Input return
5 Output
6 Output return
10 Input
2,3,4
7,8,9
Case Ground
Case Ground
R0.5
2.31
2.31 NOM.
2.62 MAX.
3.53 x 4.83
1.02
1.80
9.00
1.02
1.91
24.6
Dimensions shown are nominal in millimeters
All tolerances are ±0.15mm except overall
length ±0.20mm and width +0.13/-0.20mm
Body: Al2O3 ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 0.5 - 1.0µm,
over a 2 - 6µm Ni plating
Pb
Subject to change or obsolescence without notice Rev A 13-Oct-2005 Page 1 of 5
Preliminary Data Sheet
Part Number 856129
44 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature: (2) +25
oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 44.0 - MHz
Minimum Insertion Loss - 20.8 22.0 dB
Lower 3 dB Bandedge (4)
Upper 3 dB Bandedge
-
47.0
40.95
47.07
41.0
-
MHz
MHz
Lower 38 dB Bandedge (4)
Upper 38 dB Bandedge
40.0
-
40.35
47.75
-
48
MHz
MHz
Passband Variation
41.5 - 46.5 MHz
-
0.63
0.75
dB
Phase Linearity
41.9 - 46.1 MHz
-
3.35
4.25
deg
Group Delay Variation
41.9 - 46.1 MHz
-
80
100
µsec
Stopband Attenuation (4)
24 - 40 MHz
48 - 84 MHz
38
38
45
45
-
-
dB
dB
Source Impedance (5) - 50 -
Ω
Load Impedance (5) - 50 -
Ω
Notes:
1. All specifications are based on the test circuit shown below
2. This specification is valid for room temperature only
3. Electrical margin has been built into the design to account for the variations due to manufacturing tolerances
4. All attenuation measurements are measured relative to minimum insertion loss
5. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50 Ω
Single-ended
1,2,3,4
6,7,8,9
50Ω
10 5
50Ω
No impedance matching
required
Subject to change or obsolescence without notice Rev A 13-Oct-2005 Page 2 of 5
Preliminary Data Sheet
Part Number 856129
44 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev A 13-Oct-2005 Page 3 of 5
Preliminary Data Sheet
Part Number 856129
44 MHz SAW Filter
Matching Schematics
50 Ω
Single-ended
1,2,3,4
6,7,8,9
50Ω
10 5
50Ω
No impedance matching
required
Marking PCB Footprint
XXXXXX
856129
SAWTEK
Date code
ID dot
2.51
8.86
2.00
9.19
1.22 0.69
Date code is the day of the current year in Julian format, last digit
of the year, and hour of the day
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
Section A-A
2.6
0.36
9.39
25.6
2.0 4.0
44
Ø1.5 1.75
A
20.2
A
Ø1.5
12.0
Dimensions shown are nominal in millimeters
Packaging quantity: 1000 units/reel
Ø20.2
Ø13.0
2.7
Ø102
Ø330
44.8
Direction of travel
2.0
ID dot
Subject to change or obsolescence without notice Rev A 13-Oct-2005 Page 4 of 5
Preliminary Data Sheet
Part Number 856129
44 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Typical Maximum Unit
Operating Temperature Range T - 25 - oC
Storage Temperature Range Tstg -40 - +85 oC
Important Notes
Warnings
• Electrostatic Sensitive Device (ESD)
• Avoid ultrasonic exposure
RoHS Compliance
• This product complies with EU directive 2002/95/EC (RoHS)
Solderability
• Compatible with JEDEC J-STD-020C Pb-free process, 260°C peak reflow temperature (see soldering profile)
Links to Additional Technical Information
PCB Layout Tips Qualification Flowchart Soldering Profile
S-Parameters RoHS Information Other Technical Information
Sawtek’s liability is limited only to the Surface Acoustic Wave (SAW) component(s) described in this data sheet. Sawtek does not accept any liability for
applications, processes, circuits or assemblies, which are implemented using any Sawtek component described in this data sheet.
Contact Information
PO Box 609501
Orlando, FL 32860-9501
USA
Phone: +1 (407) 886-8860
Fax: +1 (407) 886-7061
Email: custservice@sawtek.com
Web: www.sawtek.com
Or contact one of our worldwide
Network of sales offices,
representatives or distributors
Pb
Subject to change or obsolescence without notice Rev A 13-Oct-2005 Page 5 of 5
