Data Sheet
Part Number 855821
836.5 MHz SAW Filter
Features
• For AMPS, CDMA and TDMA applications
• Usable bandwidth 25 MHz
• Low loss
• No impedance matching required for operation
at 50 Ω
• Single-ended operation
• Ceramic Surface Mount Package (SMP)
• Hermetic
• RoHS compliant (2002/95/EC), Pb-free
•
Package Pin Configuration
Surface Mount 3.00 x 3.00 x 1.22 mm Bottom View
654
3
21
0.69
1.22 NOM.
1.32 MAX.
0.75
0.60
1.50
0.75
3.00
3.00
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
Pin No. Description
2,5 Input/Output
1,3,4,6 Case ground
Pb
Subject to change or obsolescence without notice Rev D 14-Oct-2005 Page 1 of 5
Data Sheet
Part Number 855821
836.5 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) -40 to +85 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 836.5 - MHz
Maximum Insertion Loss
824 - 849 MHz
-
1.9
3
dB
Amplitude Variation
824 - 849 MHz
-
0.8
1.5
dB p-p
Absolute Attenuation
10 - 800 MHz
869 - 894 MHz
978 - 1006 MHz
1050 - 2600 MHz
25
35
25
20
30
40
35
28
-
-
-
-
dB
dB
dB
dB
Input/Output Return Loss
824 - 849 MHz
10
14
-
dB
Source Impedance (4) - 50 -
Ω
Load Impedance (4) - 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. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50 Ω
Single-ended
1,3,4,6
25
50 50
ΩΩ
No impedance matching
required
Subject to change or obsolescence without notice Rev D 14-Oct-2005 Page 2 of 5
Data Sheet
Part Number 855821
836.5 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev D 14-Oct-2005 Page 3 of 5
Data Sheet
Part Number 855821
836.5 MHz SAW Filter
Matching Schematics
50 Ω
Single-ended
1,3,4,6
25
50 50
ΩΩ
No impedance matching
required
Marking PCB Footprint
Marking
code
Date code
K
JJJYM
logo
ID dot
Sawtek
.96
3.20 SQ
1.27
.38
.81
1.70
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
3.25
Section A-A
1.75
Ø1.5
4.0 A
12.0
5.5
Ø1.5
4.0
2.0
3.25
1.4
0.21 A
Ø102 Ø20.2
Ø13.0 2.0 Direction of travel
Ø330
12.8
2.7 logo
Sawtek
ID dot
Dimensions shown are nominal in millimeters
Packaging quantity: 5000 units/reel
Subject to change or obsolescence without notice Rev D 14-Oct-2005 Page 4 of 5
Data Sheet
Part Number 855821
836.5 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Operating Temperature Range T -40 +85 oC
Storage Temperature Range Tstg -40 +85
oC
RF Power Pin - +23 dBm
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 D 14-Oct-2005 Page 5 of 5
