855728
881.5 MHz SAW Filter
Applications
For AMPS, CDMA and TDMA Applications
Product Features
Usable bandwidth 25 MHz
Low Loss
Single-ended operation
No matching required for operation at 50Ω
Small Size: 3.00 x 3.00 x 1.22 mm
Ceramic Surface Mount Package (SMP)
Hermetically Sealed
RoHS
(2002/95/EC) compliant,
Pb-free
Pb
Functional Block Diagram
Top view
Gnd
1
6
Gnd
Input
2
5
Output
Gnd
3
4
Gnd
General Description
855728 is a general purpose RF filter for Band 5 Downlink
application. This filter was specifically designed in a
3x3mm hermetic package for infrastructure applications
and is part of our wide portfolio of RF filters in the same
package.
Low insertion loss, coupled with high attenuation and
excellent power handling, makes this filter a natural choice
for our customers Downlink RF filtering needs.
Pin Configuration
Pin #
2
5
1,3,4,6
Description
Input
Output
Case Ground
Ordering Information
Part No.
855728
855728-EVB
Description
packaged part
evaluation board
Standard T/R size = 5000 units/reel.
Data Sheet: Rev F 8/14/12
© 2012 TriQuint Semiconductor, Inc.
- 1 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
855728
881.5 MHz SAW Filter
Specifications
Electrical Specifications
(1)
Specified Temperature Range:
(2)
-40 to +85 ºC
Parameter
(3)
Center Frequency
Maximum Insertion Loss
Amplitude Variation
(5)
Absolute Attenuation
(6)
Conditions
869 – 894 MHz
869 – 894 MHz
10 – 779 MHz
779 – 849 MHz
914 – 970 MHz
970 – 1049 MHz
1049 – 2000 MHz
869 – 894 MHz
869 – 894 MHz
Single-ended
Single-ended
Min
-
-
-
45
40
25
45
40
-
-
-
-
Typical
(4)
881.5
2.7
0.8
50
45
33
55
50
1.7:1
1.7:1
50
50
Max
-
3.5
1.5
-
-
-
-
-
2.5:1
2.5:1
-
-
Units
MHz
dB
dB p-p
dB
dB
dB
dB
dB
-
-
Input VSWR
Output VSWR
Source Impedance
(7)
Load Impedance
(7)
Notes:
1. All specifications are based on the TriQuint schematic for the main reference design shown on page 3
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. Typical values are based on average measurements of 5 devices at room temperature
5. This is defined as the worst difference between a peak and adjacent valley within defined frequency points
6. Relative to zero dB
7. This is the optimum impedance in order to achieve the performance shown
Absolute Maximum Ratings
Parameter
Operating Temperature
Storage Temperature
Input Power
Rating
-40 to +85
o
C
-40 to +85
o
C
+10dBm
Operation of this device outside the parameter ranges given above may cause permanent damage.
Data Sheet: Rev F 8/14/12
© 2012 TriQuint Semiconductor, Inc.
- 2 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
855728
881.5 MHz SAW Filter
Reference Design
Schematic
2
5
50
Single-ended
Input
50
1,3,4,6
50
50
Single-ended
Output
Notes:
1.
Actual matching values may vary due to PCB layout and parasitic
PC Board
Mounting Configuration
3.20 SQ
.96
1.70
JJJYM
B
960700
1.27
.81
.38
Notes:
Top, middle & bottom layers: 1 oz copper
Substrates: FR4 dielectric, .031” thick
Finish plating: Nickel: 3-8µm thick, Gold: .03-.2µm thick
Hole plating: Copper min .0008µm thick
Notes:
1.
All dimensions are in millimeters.
2.
This footprint represents a recommendation only.
Bill of Material
Reference Desg.
SMA
PCB
Value
N/A
N/A
Description
SMA connector
3-layer
Manufacturer
Radiall USA Inc.
multiple
Part Number
9602-1111-018
960700
Data Sheet: Rev F 8/14/12
© 2012 TriQuint Semiconductor, Inc.
- 3 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
855728
881.5 MHz SAW Filter
Typical Performance
(at room temperature)
Data Sheet: Rev F 8/14/12
© 2012 TriQuint Semiconductor, Inc.
- 4 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
855728
881.5 MHz SAW Filter
Mechanical Information
Package Information, Dimensions and Marking
Sawtek
logo
Marking
code
Package Style: SMP-12A
Dimensions: 3.00 x 3.00 x 1.22 mm
Body:
Al
2
O
3
ceramic
Lid:
Kovar, Ni
plated
Terminations:
Au
plating 0.5 - 1.0μm, over a 2-6μm
Ni
plating
All dimensions shown are nominal in millimeters
All tolerances are ±0.15mm except overall length and width
±0.10mm
The date code consists of: day of the current year (Julian,
3 digits), Y = last digit of the year, and M = manufacturing
site code
ID dot
B
JJJYM
Date code
1.22 NOM.
1.32 MAX.
0.69
3.00
0.75
1.50
3.00
0.75
0.60
Tape and Reel Information
Standard T/R size = 5000 units/reel. All dimensions are in millimeters
12.8
2.7
Ø330
Section A-A
4.0
0.21
2.0
Ø1.5
A
ID dot
Sawtek
logo
1.75
Ø102
Ø20.2
Ø13.0
2.0
Direction of travel
3.25
5.5
12.0
1.4 3.25
4.0
Ø1.5
A
Data Sheet: Rev F 8/14/12
© 2012 TriQuint Semiconductor, Inc.
- 5 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
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