Preliminary Data Sheet
Part Number 856466
374 MHz SAW Filter
Features
• For WiMAX applications
• Usable bandwidth of 10 MHz
• Typical 1 dB bandwidth of 10 MHz
• Low loss
• High attenuation
• Single-ended or balanced operation
• Ceramic Surface Mount Package (SMP)
• Hermetic
•
Package Pin Configuration
Surface Mount 3.80 x 3.80 x 1.27 mm Bottom View
4
8
765
3
21
Pin No. Description
2 Input
3 Input return
6 Output
7 Output return
1,4,5,8 Case ground
1.27 NOM.
1.45 MAX.
0.61
1.00
0.60
1.27
3.80
3.80
1.50
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 - 22-Apr-2005 Page 1 of 5
Preliminary Data Sheet
Part Number 856466
374 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) -40 to +85 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 374 - MHz
Maximum Insertion Loss
369.0 - 379.0 MHz
-
9
10.5
dB
Lower 1 dB bandedge (4)
Upper 1 dB bandedge
-
379
366.5
381.5
369
-
MHz
MHz
3 dB Bandwidth - 18 - MHz
Stop Band Rejection (4)
274.0 - 331.0 MHz
331.0 - 352.0 MHz
352.0 - 357.5 MHz
357.5 - 361.5 MHz
386.5 - 390.5 MHz
390.5 - 396.0 MHz
396.0 - 417.0 MHz
417.0 - 474.0 MHz
45
35
30
10
10
30
35
40
50
45
40
20
24
40
45
50
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
Amplitude Variation (5)
369.0 - 379.0 MHz
-
0.6
1.0
dB
Group Delay Ripple (5)
369.0 - 379.0 MHz
-
20
75
nsec
Source Impedance (Balanced) (6) - 200 -
Ω
Load Impedance (Balanced) (6) - 200 -
Ω
Notes:
1. All specifications are based on the test circuit shown below
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
4. All attenuation measurements will be referenced to minimum insertion loss
5. Total variation measured over the defined frequency range
6. The filter can be matched for single-ended or balanced operation to an impedance of 50 Ohms to 750 Ohms
Test Circuit:
200Ω
Balanced
Input
1,4,5,8
200Ω
7pF
2
3
6
7
200Ω
33nH
33nH
27nH
27nH
7pF
200Ω
Balanced
Output
Subject to change or obsolescence without notice Rev - 22-Apr-2005 Page 2 of 5
Preliminary Data Sheet
Part Number 856466
374 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev - 22-Apr-2005 Page 3 of 5
Preliminary Data Sheet
Part Number 856466
374 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
200Ω
Balanced
Input
1,4,5,8
200Ω
7pF
2
3
6
7
200Ω
33nH
33nH
27nH
27nH
7pF
200Ω
Balanced
Output
Marking PCB Footprint
Date code
code
Marking
3
JJJYM
ID dot
Sawtek
logo
4.01
.81
.46 1.19
.81
1.191.70
.41
The date code consists of: JJJ = Julian day,
Y = last digit of year, M = manufacturing site code
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
Ø1.5
2.0
0.3
8.0
4.0
4.1
4.1
1.8
1.75
5.512.0
Ø1.5
A
A
Section A-A
Direction of travel
Ø102
Ø13.0
Ø20.2
Ø330
2.7
12.8
2.0
logo
Sawtek
ID dot
Dimensions shown are nominal in millimeters
Packaging quantity: 4000 units/reel
Subject to change or obsolescence without notice Rev - 22-Apr-2005 Page 4 of 5
Preliminary Data Sheet
Part Number 856466
374 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Operating Temperature Range T -40 +85 oC
Storage Temperature Range Tstg -40 +85
oC
Input Power (10,000 hrs, 374 MHz, CW) P
in - +10 dBm
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 - 22-Apr-2005 Page 5 of 5
