Preliminary Data Sheet
Part Number 856435
2441 MHz SAW Filter
Features
• For Bluetooth applications
• Usable bandwidth of 83.5 MHz
• Typical 3 dB bandwidth of 130 MHz
• Low loss
• High attenuation
• Single-ended input, 50 Ω
• Balanced output, 200 Ω
• Excellent selectivity and stop band rejection
• Chip Scale Package (CSP)
• Hermetic
•
Package Pin Configuration
Surface Mount 1.50 x 1.50 x 0.76 mm Bottom View
5
2
4
3
1
Pin No. Description
1 Input
3,4 Output
2,5 Case ground
1.351.50
0.30
0.30
0.76 NOM.
0.84 MAX.
1.35
1.50
0.55
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
Subject to change or obsolescence without notice Rev - 29-Nov-2004 Page 1 of 5
Preliminary Data Sheet
Part Number 856435
2441 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) -40 to +85 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 2441 - MHz
Maximum Insertion Loss (4)
2400 - 2483.5 MHz
-
2.7
3.5
dB
Amplitude Ripple (4)
2400 - 2483.5 MHz
-
1
2
dB
Absolute Attenuation
500 - 960 MHz
960 - 1200 MHz
1200 - 1500 MHz
1500 - 1980 MHz
1980 - 2100 MHz
2100 - 2170 MHz
2170 - 2250 MHz
2700 - 3000 MHz
3000 - 3250 MHz
3250 - 3500 MHz
3500 - 6000 MHz
60
55
55
45
37
40
35
30
40
32.5
45
65
62
62
49
42
50
39
35
45
37
52
-
-
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Source Impedance (5) - 50 -
Ω
Load Impedance (Balanced)(5) - 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. Range determined by requirements in the Bluetooth Specification version 1.1
5. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50 Ω
Single-ended
Input
2,5
13
50Ω4
200Ω
14nH
200 Ω
Balanced
Output
Subject to change or obsolescence without notice Rev - 29-Nov-2004 Page 2 of 5
Preliminary Data Sheet
Part Number 856435
2441 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev - 29-Nov-2004 Page 3 of 5
Preliminary Data Sheet
Part Number 856435
2441 MHz SAW Filter
Matching Schematics
50 Ω
Single-ended
Input
2,5
13
50Ω4
200Ω
14nH
200 Ω
Balanced
Output
Marking PCB Footprint
Date code
WWY
ID dot
10
Marking
code
MFG site
M
0.95
0.40
1.45
1.45
0.40
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
A
A
Section A-A
0.25
1.09
1.83
1.83
Ø1.5
Ø1.0
4.0
4.0
2.0
8.0
3.5
1.75
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 - 29-Nov-2004 Page 4 of 5
Preliminary Data Sheet
Part Number 856435
2441 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Operating Temperature Range T -40 +85 oC
Storage Temperature Range Tstg -40 +85
oC
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 - 29-Nov-2004 Page 5 of 5
