Data Sheet
Part Number 856387
942.5 MHz SAW Filter
Features
For EGSM applications
Usable bandwidth of 35 MHz
Compatible with leading chipset suppliers
Ultra low loss
Single-ended input, 50
Balanced output, 200
Chip Scale Package (CSP)
Hermetic
Package
Pin Configuration
Surface Mount 1.50 x 1.50 x 0.76 mm
Bottom View
1
2
3
6
5
4
Pin No.
Description
2
Input
4,6
Output
1,3,5
Case
ground
0.25
0.55
0.40
0.60
1.35
1.50
1.35
1.50
0.76 NOM.
0.84 MAX.
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 - 1.0
m,
over a 2 - 6
m Ni plating
Subject to change or obsolescence without notice
Rev C
07-Dec-2004
Page 1 of 7
Data Sheet
Part Number 856387
942.5 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
+25
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 942.5 -
MHz
Maximum Insertion Loss
925
-
960
MHz
-
1.35
1.7
dB
Amplitude Variation
925 - 960 MHz
-
0.3
0.8
dB
Absolute Attenuation
10
-
880
MHz
880
-
905
MHz
905
-
915
MHz
980 - 1050 MHz
1050
-
1100
MHz
1100
-
2775
MHz
2775
-
2880
MHz
2880
-
4625
MHz
4625
-
4800
MHz
4800
-
6000
MHz
31
22
16
18
25
30
45
38
45
43
37
24
21
20
31
34
53
44
55
50
-
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Output Amplitude Balance (|S
31
/S
21
|)
925
-
960
MHz
-1
0.8
1
dB
Output Phase Balance [(S
31
)-S
21
+180]
925
-
960
MHz
-10
3.5
10
degree
Input/Output VSWR
925
-
960
MHz
-
1.9
2.5
Source Impedance
(4)
- 50 -
Load Impedance (Balanced)
(4)
- 200||80nH -
Notes:
1. All specifications are based on the test circuit shown below
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. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50
Single-ended
Input
1,3,5
2
4
50
6
200
80nH
200
Balanced
Output
Subject to change or obsolescence without notice
Rev C
07-Dec-2004
Page 2 of 7
Data Sheet
Part Number 856387
942.5 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-10 to +80
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 942.5 -
MHz
Maximum Insertion Loss
925
-
960
MHz
-
1.35
2.1
dB
Amplitude Variation
925 - 960 MHz
-
0.3
1.1
dB
Absolute Attenuation
10
-
880
MHz
880
-
905
MHz
905
-
915
MHz
980 - 1050 MHz
1050
-
1100
MHz
1100
-
2775
MHz
2775
-
2880
MHz
2880
-
4625
MHz
4625
-
4800
MHz
4800
-
6000
MHz
31
22
16
18
25
30
45
38
45
43
37
24
21
20
31
34
53
44
55
50
-
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Output Amplitude Balance (|S
31
/S
21
|)
925
-
960
MHz
-1
0.8
1
dB
Output Phase Balance [(S
31
)-S
21
+180]
925
-
960
MHz
-10
3.5
10
degree
Input/Output VSWR
925
-
960
MHz
-
1.9
2.5
Source Impedance
(4)
- 50 -
Load Impedance (Balanced)
(4)
- 200||80nH -
Notes:
1. All specifications are based on the test circuit shown below
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. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50
Single-ended
Input
1,3,5
2
4
50
6
200
80nH
200
Balanced
Output
Subject to change or obsolescence without notice
Rev C
07-Dec-2004
Page 3 of 7
Data Sheet
Part Number 856387
942.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev C
07-Dec-2004
Page 4 of 7
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-25 to +80
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 942.5 -
MHz
Maximum Insertion Loss
925
-
960
MHz
925 - 960 MHz (-10 to +75
o
C)
-
-
1.35
1.35
2.3
2.1
dB
dB
Amplitude Variation
925 - 960 MHz
-
0.3
1.3
dB
Absolute Attenuation
10
-
880
MHz
880
-
905
MHz
905
-
915
MHz
980 - 1050 MHz
1050
-
1100
MHz
1100
-
2775
MHz
2775
-
2880
MHz
2880
-
4625
MHz
4625
-
4800
MHz
4800
-
6000
MHz
31
22
16
18
25
30
45
38
45
43
37
24
21
20
31
34
53
44
55
50
-
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Output Amplitude Balance (|S
31
/S
21
|)
925
-
960
MHz
-1
0.8
1
dB
Output Phase Balance [(S
31
)-S
21
+180]
925
-
960
MHz
-10
3.5
10
degree
Input/Output VSWR
925
-
960
MHz
-
1.9
2.5
Source Impedance
(4)
- 50 -
Load Impedance (Balanced)
(4)
- 200||80nH -
Notes:
1. All specifications are based on the test circuit shown below
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. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50
Single-ended
Input
1,3,5
2
4
50
6
200
80nH
200
Balanced
Output
Data Sheet
Part Number 856387
942.5 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev C
07-Dec-2004
Page 5 of 7
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