857073
397.5 MHz SAW Filter
Applications
General purpose wireless
Wireless infrastructure
3G, 4G, Multistandard
Distributed Antenna Systems (DAS)
Product Features
Usable bandwidth 66.7 MHz
High attenuation
Low EVM
Balanced operation
Ceramic Surface Mount Package (SMP-28C)
Small Size: 7.00 x 5.50 x 1.24 mm
Hermetic
RoHS
compliant,
Pb-free
Functional Block Diagram
Top view
8
9
7
6
5
10
1
2
3
4
General Description
The 857073 is a high-performance IF SAW filter with a
center frequency of 397.5MHz and 1.5 dB bandwidth of
66.7 MHz
It features excellent attenuation and pass band ripple,
leading to outstanding EVM performance. 857073 is
designed to be used in a balanced configuration, thereby
eliminating the need for Baluns on the input and output.
The high performance coupled with the small size of this
surface mount filter makes it a natural choice for our
customers filtering needs in demanding high data rate
communications standards.
This device is RoHS compliant and Pb-free.
Pin Configuration
Pin # Bal/Bal
10
9
5
4
1,2,3
6,7,8
Description
Input +
Input -
Output +
Output -
Case Ground
Case Ground
Ordering Information
Part No.
857073
857073-EVB
Description
packaged part
evaluation board
Standard T/R size = 3000 units/reel.
Data Sheet: Rev B 05/10/12
© 2012 TriQuint Semiconductor, Inc.
- 1 of 6 -
Disclaimer: Subject to change without notice e
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857073
397.5 MHz SAW Filter
Specifications
Electrical Specifications
(1, 2)
Specified Temperature Range:
(3)
+10 to +75 ºC
Parameter
(4)
Center Frequency
Insertion Loss
1.5 dB Bandwidth
(10)
2.8 dB Band edge
(9)
2.8 dB Band edge
(9)
35 dB Bandwidth
(10)
Passband Flatness
(7)
Absolute Delay
Group Delay Ripple
(6)
Group Delay Ripple
(6)
EVM
(8)
Temperature Coeffient
Input /Output Return Loss
Stopband Attenuation
(10)
Conditions
f
o
at 397.5 MHz
Min
-
-
65
-
430
-
-
-
-
-
-
-
8.5
45
40
35
28
25
22
35
40
-
Typical
(5)
398.1
16.6
67.8
363.9
432.5
71.7
0.7
0.66
36
33
2.3
-94
14
60
58
44
44
31
41
41
46
100
Max
-
19
-
365
-
76
2.8
0.70
100
70
3
-
-
-
-
-
-
-
-
-
-
-
Units
MHz
dB
MHz
MHz
MHz
MHz
dB p-p
µs
ns p-p
ns p-p
%
ppm/ ºC
dB
dB
dB
dB
dB
dB
dB
dB
dB
365 – 430 MHz
over f
o
+/- 32.5 MHz
over f
o
+/- 32.5 MHz
Any 3.84 MHz channel over f
o
+/- 32.5 MHz
Any 3.84 MHz channel over
f
o
+/- 32.5 MHz
over f
o
+/- 32.5 MHz
5 – 100 MHz
150 – 310 MHz
310 – 359.5 MHz
359.5 – 360 MHz
435 – 435.5 MHz
(11)
435.5 – 437 MHz
437 – 460 MHz
460 – 860 MHz
Source/Load Impedance (balanced)
(12)
Notes:
1. All specifications are based on the TriQuint schematic for the main reference design shown on page 3
2. An external impedance matching network with ±2% tolerance will be necessary to achieve the proposed specifications
3. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
4. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
5. Typical values are based on average measurements of 10 devices at room temperature
6. This ripple is defined as the worst peak to adjacent valley within specified frequency range
7. Passband Flatness is defined as the difference between maximum and minimum loss over the specified band
8. The EVM specification is guaranteed by design and measured approximately in production
9. 2.8 db Band edges are relative to Minimum Loss
10. All Bandwidth and Attenuation measurements are relative to loss at 1.5dB Center Frequency
o
o
11. 435 to 435.5 MHz Stopband Attenuation applies only for this temperature range : +25
C
to +75
C
12. This is the optimum impedance in order to achieve the performance shown
Absolute Maximum Ratings
(Operation of this device outside the parameter ranges given above may cause permanent damage.)
Parameter
Operable /Storage Temperature
Input Power
Rating
-40 to +85
o
C
+10dBm (Measured with continuous sine wave signal. Expected Lifetime of
greater than or equal to 10K Hrs at 55
o
C)
- 2 of 6 -
Disclaimer: Subject to change without notice e
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Data Sheet: Rev B 05/10/12
© 2012 TriQuint Semiconductor, Inc.
857073
397.5 MHz SAW Filter
Reference Design – 100
Schematic
33pF
9
5
10pF
10
33pF
1,2,3
6,7,8
4
8.2nH
100
8.2nH
Bal Input, 100
Bal Output
100
Balanced
Input
100
18nH
100
Balanced
Output
Notes:
1.
Actual matching values may vary due to PCB layout and parasitic
PC Board
Mounting Configuration
7.20
1.27
960686
C1
L1
TriQuint
857073
JJJYHH
L2
C3
5.70
2.54
C2
L3
1.60
0.80
1.20
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.
L1
L2
L3
C1
C2
C3
SMA
PCB
Value
18nH
8.2nH
8.2nH
33pF
33pF
10pF
N/A
N/A
Description
Coil Wire-wound, 0603 5%
Coil Wire-wound, 0603, 5%
Coil Wire-wound, 0603, 5%
Chip Ceramic, 0603, 5%
Chip Ceramic, 0603, 5%
Chip Ceramic, 0603, 5%
SMA connector
3-layer
Manufacturer
MuRata
MuRata
MuRata
MuRata
MuRata
MuRata
Johnson Components
multiple
Part Number
LQW18AN18NJ00
LQW18AN8N2J00
LQW18AN8N2J00
GRM1885C1H330JA01
GRM1885C1H330JA01
GRM1885C1H100JA01
142-0701-801
960686
Data Sheet: Rev B 05/10/12
© 2012 TriQuint Semiconductor, Inc.
- 3 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857073
397.5 MHz SAW Filter
Typical Performance
(at room temperature)
Data Sheet: Rev B 05/10/12
© 2012 TriQuint Semiconductor, Inc.
- 4 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857073
397.5 MHz SAW Filter
Mechanical Information
Package Information, Dimensions and Marking
TriQuint
857073
JJJYHH
Package Style: SMP-28C
Dimensions: 7.00 x 5.50 x 1.24 mm
Date code
Pad 1
ID dot
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 (1 digit), and HH = hour
(2 digits)
1.24 NOM.
1.35 MAX.
7.00
1.27
1.40
0.69
5.50
2.54
0.60
1.00
Tape and Reel Information
Standard T/R size = 3000 units/reel. All dimensions are in millimeters
16.8
2.7
Ø330
Pad 1 ID dot
0.3
4.0
2.0
Ø1.5
A
1.75
7.5
Ø102
Direction of travel
Ø20.2
Ø13.0
2.0
7.3
16.0
2.2
Section A-A
5.8
8.0
Ø1.5
A
Data Sheet: Rev B 05/10/12
© 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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