857074
447.5 MHz SAW Filter
Applications
General purpose wireless
Wireless infrastructure
3G, 4G, Multistandard
Distributed Antenna Systems (DAS)
Product Features
Usable bandwidth 25 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
9
The 857074 is a high-performance IF SAW filter with a
center frequency of 447.8 MHz and 1.0 dB bandwidth of
27.7 MHz
It features excellent attenuation and pass band ripple,
leading to outstanding EVM performance. 857074 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.
857074
857074-EVB
Description
packaged part
evaluation board
Standard T/R size = 3000 units/reel.
Data Sheet: Rev - 05/10/12
© 2012 TriQuint Semiconductor, Inc.
- 1 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857074
447.5 MHz SAW Filter
Specifications
Electrical Specifications
(1, 2)
Specified Temperature Range:
(3)
+10 to +75 ºC
Parameter
(4)
Center Frequency,
Insertion Loss
1.0dB Bandwidth
(11)
1.0 dB Lower Bandedge
(7)
1.0 dB Upper Bandedge
35 dB Bandwidth
(11)
Passband Flatness
(8)
Absolute Delay
Group Delay Ripple
(9)
Group Delay Ripple
(9)
EVM
(10)
Temperature Coefficient
Input Return Loss
Output Return Loss
Stopband Attenuation
(11)
f
o(6)
Conditions
at f
o
Min
-
-
27.7
-
460.5
-
-
-
-
-
-
-
11
8.5
50
52
37
39
40
-
-
Typical
(5)
447.8
14.1
28.16
433.6
461.8
34.2
0.5
0.68
31
30
1.4
-20
17.3
22
73
63
44
45
53
100
100
Max
-
17
-
434.5
-
34.5
1.00
0.72
80
80
3.0
-
-
-
-
-
-
-
-
-
-
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
over f
o
+/- 12.5 MHz
over f
o
+/- 12.5 MHz
over f
o
+/- 12.5 MHz
any 3.84 MHz channel over f
o
+/- 12.5 MHz
over f
o
+/- 12.5 MHz
over f
o
+/- 12.5 MHz
over f
o
+/- 12.5 MHz
5 – 100 MHz
150 – 310 MHz
310 – 429.5 MHz
469.5 – 500 MHz
500 – 920 MHz
Source Impedance (balanced)
(12)
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 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 20 devices at room temperature
6. Center Frequency is defined as the midpoint between 1dB, relative to minimum loss, bandedges.
7. 1.0 dB Bandedges are relative to loss at Center Frequency, f
o
8. Passband Flatness is defined as the difference between maximum and minimum loss over the specified band
9. This ripple is defined as the worst peak to adjacent valley within specified frequency range
10. The EVM specification is guaranteed by design and measured approximately in production
11. All bandwidths and attenuations are relative to loss at Center Frequency, f
o
12. This is the optimum impedance in order to achieve the performance shown
Absolute Maximum Ratings
Parameter
Operable Temperature
Storage Temperature
Input Power
Rating
-40 to +85
o
C
-40 to +85
o
C
+10dBm (measured with continuous sine wave signal. Expected lifetime of greater
than or equal to 10,000 Hrs at 55
o
C)
Data Sheet: Rev - 05/10/12
© 2012 TriQuint Semiconductor, Inc.
- 2 of 6 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
857074
447.5 MHz SAW Filter
Operation of this device outside the parameter ranges given above may cause permanent damage.
Reference Design – 100
Schematic
Bal Input, 100
Bal Output
82pF
9
5
11nH
10
1,2,3
6,7,8
4
82pF
100
100
Balanced
Input
100
11nH
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
857074
JJJYHH
5.70
L2
2.54
C2
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
C1
C2
SMA
PCB
Value
11nH
11nH
82pF
82pF
N/A
N/A
Description
Coil Wire-wound, 0603 5%
Coil Wire-wound, 0603, 5%
Chip Ceramic, 0603, 5%
Chip Ceramic, 0603, 5%
SMA connector
3-layer
Manufacturer
MuRata
MuRata
MuRata
MuRata
Johnson Components
multiple
Part Number
LQW18AN11NJ00
LQW18AN11NJ00
GRM1885C1H820JA01
GRM1885C1H820JA01
142-0701-801
960686
Data Sheet: Rev - 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
®
857074
447.5 MHz SAW Filter
Typical Performance
(at room temperature)
Data Sheet: Rev - 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
®
857074
447.5 MHz SAW Filter
Mechanical Information
Package Information, Dimensions and Marking
TriQuint
857074
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 - 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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