Data Sheet
Part Number 855885
208 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
14-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 855885
208 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
14-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
- 208 -
MHz
Insertion Loss at Fo
4 5.0 7
dB
1 dB Lower Frequency
1 dB Upper Frequency
-
208.2
207.724
208.340
207.8
-
MHz
MHz
8 dB Lower Frequency
8 dB Upper Frequency
207.4
-
207.498
208.571
-
208.6
MHz
MHz
20 dB Lower Frequency
20 dB Upper Frequency
206.8
-
207.294
208.774
-
209.2
MHz
MHz
Amplitude Variation
207.8 - 208.2 MHz
-
0.38
1
dB p-p
Group Delay Variation
207.8 - 208.2 MHz
-
172
300
nsec
Absolute Delay
207.8 - 208.2 MHz
0.7
1.113
1.7
sec
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
55
43
40
34
25
20
20
25
34
40
43
55
63
62
51
45
39
31
33
37
45
53
55
60
-
-
-
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Input/Output VSWR
207.8
-
208.2
MHz
-
1.46/1.54
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 855885
208 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 3 of 5
Typical Performance
(at +25
o
C)
Data Sheet
Part Number 855885
208 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
14-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
11
5
50
33pF
150nH
120nH
33pF
Marking
PCB Footprint
XXXXXX
Date Code
ID Dot
SAWTEK
855885
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 855885
208 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
14-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
PDF 
ZIP