Data Sheet
Part Number 856113
897.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 1 of 5
Features
For EGSM applications, Tx
Usable bandwidth of 35 MHz
High attenuation
Balanced input
Single-ended output
Superior amplitude and phase balance
Ceramic Surface Mount Package (SMP)
Small size
Package
Pin Configuration
Surface Mount 2.50 x 2.00 x 0.76 mm
Bottom View
6
5
4
3
2
1
Pin No.
Description
2
Output,
Sigle-ended
4,6
Input,
Balanced
1,3,5
Case
Ground
0.50
0.50
0.25x45
CHAMFER
1.38
2.00
0.76 NOM.
0.84 MAX.
2.50
1.88
0.94
Dimensions shown are nominal in millimeters
All tolerances are
0.10mm
Body: Al
2
O
3
ceramic
Lid: Kovar or Alloy 42, Au over Ni plated
Terminations: Au plating 0.5 - 1.0
m,
over a 2 - 6
m Ni plating
Data Sheet
Part Number 856113
897.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 2 of 5
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-10 to +80
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 897.5 -
MHz
Maximum Insertion Loss
880
-
915
MHz
-
2.2
3.2
dB
Absolute Attenuation
(4)
DC
-
850
MHz
850
-
869
MHz
935
-
960
MHz
960
-
1850
MHz
1850
-
3660
MHz
3660
-
6000
MHz
45
15
20
40
35
25
54
33
28
48
41
33
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
Amplitude Ripple
880
-
915
MHz
-
1.1
1.8
dB p-p
Amplitude Balance (|S
31
/S
21
|)
880
-
915
MHz
-1.5
1.0
1.5
dB
Phase Balance
(S
31
)-
(S
21
)
880
-
915
MHz
170
180
190
deg
Input/Output Return Loss
880
-
915
MHz
8.5
9.3
-
dB
Optimal Source Impedance
(4)
-
200 || 64nH
-
Optimal Load Impedance
(4)
- 50 -
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 complex conjugate of the unmatched filter's impedance resulting in maximum power transfer
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
200
Balanced
Input
1,3,5
200
64nH
4
6
2
50
50
Single-ended
Output
Data Sheet
Part Number 856113
897.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 3 of 5
Typical Performance
(at +25
o
C)
Data Sheet
Part Number 856113
897.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 4 of 5
Matching Schematic
Actual matching values may vary due to PCB layout and parasitics
200
Balanced
Input
1,3,5
200
64nH
4
6
2
50
50
Single-ended
Output
Marking
PCB Footprint
M
JJJYM
ID dot
Date code
Marking
code
logo
Sawtek
0.70
1.38
0.3x45
CHAMFER
0.70
0.94
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
1.75
3.5 8.0
A
A
2.0
4.0
4.0
1.0
1.5
2.75
1.1
0.3
Section A-A
2.23
2.7
8.8
330
102
20.2
13.0
2.0
ID dot
Direction of travel
Sawtek
logo
Dimensions shown are nominal in millimeters
Packaging quantity: 10000 units/reel
Data Sheet
Part Number 856113
897.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 5 of 5
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-10
+80
o
C
Storage Temperature Range
T
stg
-40 +85
o
C
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
Soldering Profile
S-Parameters
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
PDF 
ZIP