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Электронный компонент: 855884

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Data Sheet
Part Number 855884
125 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
11-Mar-2002
Page 1 of 5
Features
For GSM/EDGE applications
Usable bandwidth 400 KHz
Single-ended and differential operation
Ceramic Surface Mount Package (SMP)
Small size
Package
Pin Configuration
Surface Mount 13.3 x 6.50 x 1.75 mm
Bottom View
12
11
10
9
8
7
6
5
4
3
2
1
Pin No.
Description
5
Output
6
Output
return
11
Input
12
Input
return
1,2,3,4
Case
ground
7,8,9,10
Case
ground
1.75 NOM.
1.96 MAX.
0.76
0.79
1.17 x 3.76
1.50
2.54
6.50
2.18
2.54
13.3
Dimensions shown are nominal in millimeters
All tolerances are
0.15mm except overall
length and width
0.10mm
Body: Al
2
O
3
ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 0.5 - 1.0
m,
over a 2 - 6
m Ni plating
Data Sheet
Part Number 855884
125 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
11-Mar-2002
Page 2 of 5
Electrical Specifications
(1)

Operating Temperature Range:
(2)
-10 to +85
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 125 -
MHz
Insertion Loss at Fo
4 5.7 7
dB
1 dB Lower Frequency
1 dB Upper Frequency
-
125.2
124.719
125.307
124.8
-
MHz
MHz
8 dB Lower Frequency
8 dB Upper Frequency
124.4
-
124.494
125.547
-
125.6
MHz
MHz
20 dB Lower Frequency
20 dB Upper Frequency
123.8
-
124.313
125.742
-
126.2
MHz
MHz
Amplitude Variation
124.8 - 125.2 MHz
-
0.62
1
dB p-p
Group Delay Variation
124.8 - 125.2 MHz
-
194
300
nsec
Absolute Delay
124.8 - 125.2 MHz
0.7
1.230
1.7
sec
Absolute Attenuation
10
-
112
MHz
112
-
115.5
MHz
115.5
-
119
MHz
119
-
121.6
MHz
121.6
-
123.2
MHz
123.2
-
123.8
MHz
126.2
-
126.8
MHz
126.8
-
128.4
MHz
128.4
-
131
MHz
131
-
134.5
MHz
134.5
-
138
MHz
138
-
450
MHz
55
43
40
34
25
20
20
25
34
40
43
55
72
66
61
47
34
32
32
37
48
51
59
72
-
-
-
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Input/Output VSWR
124.8
-
125.2
MHz
-
1.51/1.79
2.3
-
Source Impedance
(4)
- 50 -
Load Impedance
(4)
- 50 -

Notes:
1. All specifications are based on the test circuit shown on page 4
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

Data Sheet
Part Number 855884
125 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
11-Mar-2002
Page 3 of 5
Typical Performance
(at +25
o
C)
Data Sheet
Part Number 855884
125 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
11-Mar-2002
Page 4 of 5
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50
Single-ended
1,2,3,4,6
7,8,9,10,12
50
10nH
56pF
11
5
4.7nH
50
56pF
150nH
120nH
Marking
PCB Footprint
XXXXXX
Date Code
ID Dot
SAWTEK
855884
1.70
13.51
.99
1.55
8.61
3.53
.99
1.70
6.70
The date code consists of: day of the current year (Julian,
3 digits), last digit of the year (1 digit) and hour (2 digits)
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
A
A
24
1.75
11.5
1.5
2.3
13.9
4.0
1.5
2.0
0.3
12.0
7.1
Section A-A
Direction of travel
330
24.8
2.7
102
13.0
20.2
2.0
ID dot
Dimensions shown are nominal in millimeters
Packaging quantity:2000 units/reel
Data Sheet
Part Number 855884
125 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
11-Mar-2002
Page 5 of 5
Maximum Ratings
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Operating Temperature Range
T
-10
+25
+85
o
C
Storage Temperature Range
T
stg
-40 - +125
o
C
Input Power
P
in
- - 10 dBm
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
Soldering Profile
S-Parameters
Other Technical Information
Contact Information
PO Box 609501
Orlando, FL 32860-9501
USA
Phone: +1 (407) 886-8860
Fax: +1 (407) 886-7061
Email:
custservice@sawtek.com
Web:
www.sawtek.com
Or contact one of our worldwide
Network of
sales offices,
Representatives or distributors