Data Sheet
Part Number 856539
2441 MHz SAW Filter
Features
• For Bluetooth applications
• Usable bandwidth of 83.5 MHz
• Low loss
• Low profile
• High attenuation
• Single-ended operation
• Excellent selectivity and stop band rejection
• Ceramic Chip Scale Package (CSP)
• Hermetic
• RoHS compliant (2002/95/EC), Pb-free
•
Package Pin Configuration
Surface Mount 1.40 x 1.20 x 0.46 mm Bottom View
5
2
4
3
1
Pin No. Description
1 Input
4 Output
3 N/C
2,5 Case ground
0.46 NOM.
0.50 MAX.
0.3251.20
0.25
0.50
1.25
1.40
0.25 0.90
Dimensions shown are nominal in millimeters
All tolerances are ±0.10mm
Body: Al2O3 ceramic
Lid: Kovar or Alloy 42, Au over Ni plated
Terminations: Au plating 0.5 - 1.0µm,
over a 2 - 6µm Ni plating
Pb
Subject to change or obsolescence without notice Rev - 07-Mar-2006 Page 1 of 5
Data Sheet
Part Number 856539
2441 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) -30 to +85 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 2441 - MHz
Maximum Insertion Loss (4)
2400 - 2483.5 MHz
-
2.0
3.5
dB
Amplitude Ripple (5)
2400 - 2483.5 MHz
-
0.8
2.0
dB
Absolute Attenuation
10 - 1000 MHz
1000 - 1500 MHz
1500 - 2250 MHz
2250 - 2300 MHz
2700 - 3200 MHz
3200 - 3500 MHz
3500 - 4000 MHz
4000 - 4500 MHz
4500 - 5000 MHz
35
30
25
20
22
20
27
25
20
40
35
30
28
28
25
32
33
28
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
Source Impedance (6) - 50 -
Ω
Load Impedance (6) - 50 -
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. Range determined by requirements in the Bluetooth Specification version 1.1
5. Maximum peak to adjacent valley measured over the indicated range
6. 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
2,5
50Ω
3.9nH
14
50Ω
4.7nH
3N/C
50 Ω
Single-ended
Output
Subject to change or obsolescence without notice Rev - 07-Mar-2006 Page 2 of 5
Data Sheet
Part Number 856539
2441 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev - 07-Mar-2006 Page 3 of 5
Data Sheet
Part Number 856539
2441 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50 Ω
Single-ended
Input
2,5
50Ω
3.9nH
14
50Ω
4.7nH
3N/C
50 Ω
Single-ended
Output
Marking PCB Footprint
Marking
code
MFG site
HM
WWY
ID dot
Date code
0.15
1.35
0.15
1.00
0.425
0.35
The date code consists of: WW = 2 digit week,
Y = last digit of year, M = manufacturing site code
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
1.75
3.5 8.0
A
A
2.0
4.0
4.0
Ø1.0
Ø1.5
1.73
0.91
0.3
Section A-A
1.47
8.8
ID dot
2.0
Direction of travel
Ø330
Ø20.2
Ø13.0
Ø102
2.7
Dimensions shown are nominal in millimeters
Packaging quantity: 10000 units/reel
Subject to change or obsolescence without notice Rev - 07-Mar-2006 Page 4 of 5
Data Sheet
Part Number 856539
2441 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Operating Temperature Range T -30 +85 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 - 07-Mar-2006 Page 5 of 5
