Data Sheet
Features
•
•
•
•
•
For GSM/EDGE applications
Usable bandwidth 400 KHz
Single-ended and differential operation
Ceramic Surface Mount Package (SMP)
Small size
Part Number 855885
208 MHz SAW Filter
•
Package
Surface Mount 13.3 x 6.50 x 1.75 mm
Pin Configuration
Bottom View
1
1.75 NOM.
1.96 MAX.
0.76
13.3
2.54
2.18
6.50
2.54
2
3
4
5
6
12
11
10
9
8
7
1.17 x 3.76
0.79
1.50
Pin No.
5
6
11
12
1,2,3,4
7,8,9,10
Description
Output
Output return
Input
Input return
Case ground
Case ground
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 - 1.0µm,
over a 2 - 6µm
Ni
plating
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 1 of 5
Data Sheet
Operating Temperature Range:
(2)
-10 to +85
o
C
Part Number 855885
208 MHz SAW Filter
Electrical Specifications
(1)
Parameter
(3)
Center Frequency
Insertion Loss at Fo
1 dB Lower Frequency
1 dB Upper Frequency
8 dB Lower Frequency
8 dB Upper Frequency
20 dB Lower Frequency
20 dB Upper Frequency
Amplitude Variation
207.8 - 208.2 MHz
Group Delay Variation
207.8 - 208.2 MHz
Absolute Delay
207.8 - 208.2 MHz
Absolute Attenuation
10 - 195 MHz
195.0 - 198.5 MHz
198.5 - 202.0 MHz
202.0 - 204.6 MHz
204.6 - 206.2 MHz
206.2 - 206.8 MHz
209.2 - 209.8 MHz
209.8 - 211.4 MHz
211.4 - 214.0 MHz
214.0 - 217.5 MHz
217.5 - 221.0 MHz
221.0 - 450.0 MHz
Input/Output VSWR
207.8 - 208.2 MHz
Source Impedance
(4)
Load Impedance
(4)
Notes:
1.
2.
3.
4.
Minimum
-
4
-
208.2
207.4
-
206.8
-
-
-
0.7
55
43
40
34
25
20
20
25
34
40
43
55
-
-
-
Typical
208
5.0
207.724
208.340
207.498
208.571
207.294
208.774
0.38
172
1.113
63
62
51
45
39
31
33
37
45
53
55
60
1.46/1.54
50
50
Maximum
-
7
207.8
-
-
208.6
-
Unit
MHz
dB
MHz
MHz
MHz
MHz
MHz
MHz
dB p-p
nsec
µsec
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-
Ω
Ω
209.2
1
300
1.7
-
-
-
-
-
-
-
-
-
-
-
-
2.3
-
-
All specifications are based on the test circuit shown on page 4
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 in order to achieve the performance shown
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 2 of 5
Data Sheet
Part Number 855885
208 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 3 of 5
Data Sheet
Actual matching values may vary due to PCB layout and parasitics
150nH
11
120nH
5
Part Number 855885
208 MHz SAW Filter
Matching Schematics
50
Ω
Single-ended
50Ω
33pF
1,2,3,4,6
7,8,9,10,12
33pF
50Ω
Marking
1.70
PCB Footprint
13.51
3.53
SAWTEK
855885
XXXXXX
ID Dot
Date Code
6.70
.99
.99
8.61
1.55
1.70
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
24.8
2.7
Ø330
ID dot
0.3
2.0
4.0
Ø1.5
A
1.75
11.5
13.9
24
Ø102
Direction of travel
Ø20.2
Ø13.0
2.0
2.3
Section A-A
7.1
12.0
Ø1.5
A
Dimensions shown are nominal in millimeters
Packaging quantity:2000 units/reel
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 4 of 5
Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Input Power
Part Number 855885
208 MHz SAW Filter
Symbol
T
T
stg
P
in
Minimum
-10
-40
-
Typical
+25
-
-
Maximum
+85
+125
10
Unit
C
C
dBm
o
o
Warnings
•
•
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
S-Parameters
Qualification Flowchart
Soldering Profile
Other Technical Information
Contact Information
PO Box 609501
Orlando, FL 32860-9501
USA
Subject to change or obsolescence without notice
Phone: +1 (407) 886-8860
Fax: +1 (407) 886-7061
Email:
custservice@sawtek.com
Web:
www.sawtek.com
Rev -
Or contact one of our worldwide
Network of
sales offices,
Representatives or distributors
14-Mar-2002
Page 5 of 5
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