857038
836.5 MHz SAW Filter
Applications
For CDMA applications
For Automotive Telematics applications
Product Features
Usable bandwidth 25 MHz
Single-ended operation
Ceramic chip-scale Package (CSP)
Qualified for automotive applications
Small Size: 1.40 x 1.20 x 0.46 mm
Hermetically Sealed
RoHS
compliant,
Pb-free
Functional Block Diagram
Top view
Gnd
Output
5
Input
1
2
4
3
Gnd
Gnd
General Description
857038 is an 836.5 MHz CDMA filter with low insertion
loss & excellent rejection.
857038 is ideal for automotive telematics applications. It
achieves its performance over an extended temperature
range and has been qualified to AEC-Q200 requirements.
In addition, it is fabricated and packaged in TS-16949-
certified facilities.
857038 uses advanced and inexpensive packaging
techniques to achieve an extremely compact hermetically
sealed 1.4 x 1.2 x 0.46 mm package.
Pin Configuration
Pin #
1
4
3
2,5
Description
Input
Output
Ground
Case Ground
Ordering Information
Part No.
857038
857038-EVB
Description
packaged part
evaluation board
Standard T/R size = 10000 units/reel.
Data Sheet: Rev B 11/03/11
© 2011 TriQuint Semiconductor, Inc.
- 1 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857038
836.5 MHz SAW Filter
Specifications
Electrical Specifications
(1)
Specified Temperature Range:
(2)
-40 to +85 ºC
Parameter
(3)
Center Frequency
Maximum Insertion Loss
Amplitude Variation
Absolute Attenuation
(5)
Conditions
824 – 849 MHz
824 – 849 MHz
10 – 800 MHz
869 – 894 MHz
1574.42 – 1576.42 MHz
1638 – 1708 MHz
1930 – 1990 MHz
2110 – 2170 MHz
2462 – 2557 MHz
3286 – 3406 MHz
824 – 849 MHz
824 – 849 MHz
Min
-
-
-
30
40
28
27
25
24
20
18
8.5
8.5
-
-
Typical
(4)
836.5
2.3
1.0
45
50
39
38
35
34
33
30
10
10
50
50
Max
-
3.0
2.0
-
-
-
-
-
-
-
-
-
-
-
-
Units
MHz
dB
dB p-p
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Input Return Loss
Output Return Loss
Source Impedance (Single-ended)
(6)
Load Impedance (Single-ended)
(6)
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 at room temperature
5. Relative to zero dB.
6. This is the optimum impedance in order to achieve the performance shown
Absolute Maximum Ratings
Parameter
Operating Temperature
Storage Temperature
7.
(7)
Rating
-40 to +85
o
C
-40 to +85
o
C
Device may operate over this range with degraded Electrical Specifications
Operation of this device outside the parameter ranges given above may cause permanent damage.
Data Sheet: Rev B 11/03/11
© 2011 TriQuint Semiconductor, Inc.
- 2 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857038
836.5 MHz SAW Filter
Reference Design
Schematic
1
4
50
Single-ended
Input
50
2,3,5
50
50
Single-ended
Output
Notes:
1.
Actual matching values may vary due to PCB layout and parasitic
PC Board
Mounting Configuration
1.35
960568
0.15
0.15
GT M
WWY
1.00
0.425
0.35
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
960568
Data Sheet: Rev B 11/03/11
© 2011 TriQuint Semiconductor, Inc.
- 3 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857038
836.5 MHz SAW Filter
Typical Performance
(at room temperature)
Data Sheet: Rev B 11/03/11
© 2011 TriQuint Semiconductor, Inc.
- 4 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857038
836.5 MHz SAW Filter
Mechanical Information
Package Information, Dimensions and Marking
Marking
code
ID dot
MFG site
Date code
Package Style: CSP-5AT
Dimensions: 1.40 x 1.20 x 0.46 mm
Body:
Al
2
O
3
ceramic
Lid: Kovar or Alloy 42, Au over 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
GT M
WWY
0.46 NOM.
0.50 MAX.
1.40
1.25
0.50
The date code consists of: M = manufacturing site code
WW = 2 digit week and Y = last digit of year
1.20 0.325
0.25
0.90
0.25
Tape and Reel Information
Standard T/R size = 10000 units/reel. All dimensions are in millimeters
2.7
8.8
Ø330
ID dot
Section A-A
0.3
2.0
4.0
Ø1.5
A
1.75
Ø102 Ø20.2
Ø13.0
Direction of travel
2.0
1.73
0.65
1.47
4.0
Ø1.0
A
3.5 8.0
Data Sheet: Rev B 11/03/11
© 2011 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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