Preliminary Data Sheet
Features
•
•
•
•
•
•
•
•
•
•
For GPS applications
Usable bandwidth 2 MHz
Super low loss
High attenuation
No impedance matching required for operation
at 100
Ω
Single-ended input
Balanced output
Superior amplitude and phase balance
Ceramic Surface Mount Package (SMP)
Small size
Part Number 856134
1575.42 MHz SAW Filter
•
Package
Surface Mount 2.50 x 2.00 x 0.76 mm
Pin Configuration
Bottom View
2
3
1
0.76 NOM.
0.84 MAX.
2.50
0.94
5
4
2.00
0.50
1.38
Pin No.
1
2,5
3,4
Description
Input
Case ground
Balanced output
0.50
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 - 1.0µm,
over a 2 - 6µm
Ni
plating
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 1 of 6
Preliminary Data Sheet
Operating Temperature:
(2)
+25
o
C
Part Number 856134
1575.42 MHz SAW Filter
Electrical Specifications
(1)
Parameter
(3)
Center Frequency
Maximum Insertion Loss
1574.42 - 1576.42 MHz
Absolute Attenuation
DC - 1450 MHz
1450 - 1475 MHz
1475 - 1525 MHz
1625 - 1675 MHz
1675 - 1775 MHz
1775 - 3155 MHz
3155 - 6000 MHz
Input/Output Return Loss
1574.42 - 1576.42 MHz
Output Amplitude Balance (|S
31
/S
21
|)
1574.42 - 1576.42 MHz
Output Phase Balance
φ(S
31
)-
φ(S
21
)
1574.42 - 1576.42 MHz
Nominal Source Impedance
(4)
Optimal Load Impedance (balanced)
Notes:
1.
2.
3.
4.
All specifications are based on the test circuit shown below
This specification is valid for room temperature only. The specification over the full temperature range(s) is available on the next
page(s)
Electrical margin has been built into the design to account for the variations due to manufacturing tolerances
This is the optimum impedance for maximum power transfer over passband
Minimum
-
-
30
27
15
12
20
30
35
10
-
180
-
-
Typical
1575.42
1.4
38
31
26
14
22
35
45
16
0.5
185
50
120 + j35
Maximum
-
1.5
-
-
-
-
-
-
-
-
0.75
190
-
-
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
degree
Ω
Ω
Test Circuit:
1
3
100Ω
50Ω
2,5
4
50
Ω
Single-ended
Input
100
Ω
Balanced
Output
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 2 of 6
Preliminary Data Sheet
Operating Temperature Range:
(2)
-30 to +85
o
C
Part Number 856134
1575.42 MHz SAW Filter
Electrical Specifications
(1)
Parameter
(3)
Center Frequency
Maximum Insertion Loss
1574.42 - 1576.42 MHz
Absolute Attenuation
DC - 1450 MHz
1450 - 1475 MHz
1475 - 1525 MHz
1625 - 1675 MHz
1675 - 1775 MHz
1775 - 3155 MHz
3155 - 6000 MHz
Input/Output Return Loss
1574.42 - 1576.42 MHz
Output Amplitude Balance (|S
31
/S
21
|)
1574.42 - 1576.42 MHz
Output Phase Balance
φ(S
31
)-
φ(S
21
)
1574.42 - 1576.42 MHz
Nominal Source Impedance
(4)
Optimal Load Impedance (balanced)
Notes:
1.
2.
3.
4.
All specifications are based on the test circuit shown below
In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
This is the optimum impedance for maximum power transfer over passband
Minimum
-
-
30
27
14
10
20
30
35
10
-
180
-
-
Typical
1575.42
1.4
38
31
20
13
22
35
45
16
0.6
187.5
50
120 + j35
Maximum
-
1.7
-
-
-
-
-
-
-
-
1
195
-
-
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
degree
Ω
Ω
Test Circuit:
1
3
100Ω
50Ω
2,5
4
50
Ω
Single-ended
Input
100
Ω
Balanced
Output
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 3 of 6
Preliminary Data Sheet
Part Number 856134
1575.42 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 4 of 6
Preliminary Data Sheet
Part Number 856134
1575.42 MHz SAW Filter
Matching Schematics
1
3
100Ω
50Ω
2,5
4
50
Ω
Single-ended
Input
100
Ω
Balanced
Output
Marking
Sawtek
logo
Marking
code
PCB Footprint
2.59
V
JJJYM
ID dot
Date code
2.08
.69
.71 SQ
.23
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
8.8
2.7
Ø330
ID dot
Sawtek
logo
4.0
0.254
2.0
Ø1.5
A
1.75
2.75
Ø102
Direction of travel
Ø20.2
Ø13.0
2.0
3.5 8.0
4.0
Ø1.0
1.1
Section A-A
2.23
A
Dimensions shown are nominal in millimeters
Packaging quantity: 10000 units/reel
Subject to change or obsolescence without notice
Rev A
10-Sep-2002
Page 5 of 6
FPGA/CPLD
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