Data Sheet
Part Number 854654
70 MHz SAW Filter
Features
• Usable bandwidth of 2.0 MHz
• Typical 3 dB bandwidth of 2.1 MHz
• Low loss
• High attenuation
• Single-ended operation, 50Ω
• Ceramic Surface Mount Package (SMP)
• Hermetic
•
Package Pin Configuration
Surface Mount 19.00 x 6.50 x 1.75 mm Bottom View
10 9 8 76
5
4
3
21
Pin No. Description
5 Output
10 Input
1,6 Ground
2,3,4 Case ground
7,8,9 Case ground
R0.51
1.91
2.31
1.02
1.80
0.76
19.0
6.50
1.75 NOM.
1.96 MAX.
Dimensions shown are nominal in millimeters
All tolerances are ±0.15mm except overall
length and width +0.15mm/-0.10mm
Body: Al2O3 ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 0.5 - 1.0µm,
over a 2 - 6µm Ni plating
Subject to change or obsolescence without notice Rev - 31-Jan-2005 Page 1 of 5
Data Sheet
Part Number 854654
70 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) +25
oC
Parameter Minimum Typical Maximum Unit
Center Frequency, f0 69.92 70 70.08 MHz
Insertion Loss at Fo - 7.85 8.25 dB
1 dB Bandwidth 1.3 1.7 - MHz
3 dB Bandwidth 2 2.1 - MHz
40 dB Bandwidth - 3.85 4.25 MHz
Passband Ripple
69.3 - 70.7 MHz
-
0.6
1
dB
Phase Linearity
69.3 - 70.7 MHz
-
5
8
deg
Group Delay Variation
69.3 - 70.7 MHz
-
250
340
nsec
Absolute Group Delay - 2.19 -
µsec
Temperature Coefficient - -23 - ppm/ºC
Source Impedance (3) - 50 -
Ω
Load Impedance (3) - 50 -
Ω
Notes:
1. All specifications are based on the test circuit shown below
2. All specifications are tested at room temperature only
3. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
50Ω
Single-ended
Input
1,2,3,4
6,7,8,9
50Ω56pF
150nH
56pF
10 5
150nH
50Ω
50Ω
Single-ended
Output
Subject to change or obsolescence without notice Rev - 31-Jan-2005 Page 2 of 5
Data Sheet
Part Number 854654
70 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev - 31-Jan-2005 Page 3 of 5
Data Sheet
Part Number 854654
70 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50Ω
Single-ended
Input
1,2,3,4
6,7,8,9
50Ω56pF
150nH
56pF
10 5
150nH
50Ω
50Ω
Single-ended
Output
Marking PCB Footprint
XXXXXX
854654
SAWTEK
Date Code
ID Dot
2.51
6.70
8.86
.69
1.22
2.00
The date code consists of: day of the current year (Julian,
3 digits), last digit of the year (1 digit) and hour (2 digits)
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
Ø1.5
12.0
2.3
4.0
0.3 2.0
0.20
Section A-A 7.1
19.6
R0.75 1.75
Ø1.5
14.2
28.4
32.0
A
A
ID dot
Direction of travel
Ø330
Ø102
2.7
Ø13.0
Ø20.2 2.0
32.8
Dimensions shown are nominal in millimeters
Packaging quantity: 2000 units/reel
Subject to change or obsolescence without notice Rev - 31-Jan-2005 Page 4 of 5
Data Sheet
Part Number 854654
70 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Storage Temperature Range Tstg -40 +85 º C
Warnings
• Electrostatic Sensitive Device (ESD)
• Avoid ultrasonic exposure
Material Content
• Does not contain lead (Pb) or other RoHS restricted materials
Links to Additional Technical Information
PCB Layout Tips Qualification Flowchart
S-Parameters
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
Soldering Profile
Other Technical Information
Subject to change or obsolescence without notice Rev - 31-Jan-2005 Page 5 of 5
