Data Sheet
Part Number 854666
70 MHz SAW Filter
Features
• Usable bandwidth of 12 MHz
• Typical 3 dB bandwidth of 12.5 MHz
• Low loss
• High attenuation
• Single-ended operation, 50Ω
• Ceramic Surface Mount Package (SMP)
• Hermetic
•
Package Pin Configuration
Surface Mount 13.30 x 6.50 x 1.75 mm Bottom View
12
11
10 9 8 7
6
5
4
3
21
Pin No. Description
5 Output
11 Input
6,12 Ground
1,2,3,4 Case Ground
7,8,9,10 Case Ground
1.75 NOM.
1.96 MAX.
0.76
0.79
1.17 x 3.76 1.50
2.546.50
2.18
2.54
13.3
Dimensions shown are nominal in millimeters
All tolerances are ±0.15mm except overall
length and width ±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 - 14-Mar-2005 Page 1 of 5
Data Sheet
Part Number 854666
70 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature: (2) +25
oC
Parameter Minimum Typical Maximum Unit
Center Frequency 69.8 70 70.2 MHz
Insertion Loss at FO - 11.5 12.5 dB
1 dB Bandwidth 11.45 11.65 - MHz
3 dB Bandwidth 12 12.5 - MHz
40 dB Bandwidth - 17.35 18.25 MHz
Passband Ripple
64.6 - 75.4 MHz
-
0.6
1
dB
Phase Linearity
64.6 - 75.4 MHz
-
9
11.5
deg
Group Delay Variation
64.6 - 75.4 MHz
-
70
90
nsec
Absolute Delay - 1.08 - µsec
Temperature Coefficient - -94 - 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
50 Ω
Single-ended
Input
1,2,3,4,6,
7,8,9,10,12
11 5
50 50
ΩΩ
120nH 120nH
50 Ω
Single-ended
Output
Subject to change or obsolescence without notice Rev - 14-Mar-2005 Page 2 of 5
Data Sheet
Part Number 854666
70 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev - 14-Mar-2005 Page 3 of 5
Data Sheet
Part Number 854666
70 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50 Ω
Single-ended
Input
1,2,3,4,6,
7,8,9,10,12
11 5
50 50
ΩΩ
120nH 120nH
50 Ω
Single-ended
Output
Marking PCB Footprint
XXXXXX
Date Code
ID Dot
SAWTEK
854666
1.70 13.51
.99 1.55
8.61
3.53
.99
1.70
6.70
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
A
A
24
1.75
11.5
Ø1.5
2.3
13.9
4.0 Ø1.5
2.0
0.3
12.0
7.1
Section A-A
Dimensions shown are nominal in millimeters
Packaging quantity: 2000 units/reel
Direction of travel
Ø330
24.8
2.7
Ø102
Ø13.0
Ø20.2 2.0
ID dot
Subject to change or obsolescence without notice Rev - 14-Mar-2005 Page 4 of 5
Data Sheet
Part Number 854666
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 - 14-Mar-2005 Page 5 of 5
