Data Sheet
Part Number 855992
240 MHz SAW Filter
Features
For WCDMA basestation IF applications
Usable bandwidth of 3.6 MHz
Low loss
High attenuation
Single-ended operation
Ceramic Surface Mount Package (SMP)
Small size
Package
Pin Configuration
Surface Mount 13.30 x 6.50 x 1.50 mm
Bottom View
6
7
8
9
10
5
4
3
2
1
Pin No. Description
5
RF
output
10
RF
input
1,6
Ground
2,3,4
Case
ground
7,8,9
Case
ground
1.50 NOM.
1.65 MAX.
1.80
6.50
0.64
R0.51
1.02
2.31
1.91
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
Subject to change or obsolescence without notice
Rev C
09-Mar-2004
Page 1 of 5
Data Sheet
Part Number 855992
240 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-10 to +85
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency, f
0
- 240 -
MHz
Insertion Loss at Minimum
12.5 14.3 16.5
dB
Maximum Insertion Loss
238.2 - 241.8 MHz
12.5
14.8
16.5
dB
Lower 1 dB Point
(4)
Upper 1 dB Point
(4)
-
241.8
238.10
241.94
238.2
-
MHz
MHz
Amplitude Variation
238.2 - 241.8 MHz
-
0.5
1
dB p-p
Group Delay
238.2 - 241.8 MHz
1.59
1.69
1.79
sec
Group Delay Ripple
238.2 - 241.8 MHz
-
0.060
0.15
sec
Phase Ripple
238.2 - 241.8 MHz
-
2
6
deg p-p
Minimum Rejection
170
-
235
MHz
245
-
310
MHz
40
40
45
42
-
-
dB
dB
Attenuation
236.70
MHz
237.07
MHz
237.50
MHz
242.50
MHz
242.93
MHz
243.30
MHz
35
25
12
12
25
35
49
58
28
22
42
49
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
Input/Output VSWR
238.2
-
241.8
MHz
-
1.5:1
2.0:1
Ratio
Source Impedance:
(5)
- 50 -
Load Impedance:
(5)
- 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. Relative to minimum insertion loss
5. This is the optimum impedance in order to achieve the performance shown
Subject to change or obsolescence without notice
Rev C
09-Mar-2004
Page 2 of 5
Data Sheet
Part Number 855992
240 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev C
09-Mar-2004
Page 3 of 5
Data Sheet
Part Number 855992
240 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50
Single-ended
1,2,3,4
6,7,8,9
50
18nH
10
5
18nH
50
8nH
8nH
Marking
PCB Footprint
XXXXXX
855992
SAWTEK
2.00
1.22
.69
8.84
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
Dimensions shown are nominal in millimeters
Packaging quantity: 2000 units/reel
Direction of travel
330
24.8
2.7
102
13.0
20.2
2.0
ID dot
Subject to change or obsolescence without notice
Rev C
09-Mar-2004
Page 4 of 5
Data Sheet
Part Number 855992
240 MHz SAW Filter
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-10
+85
o
C
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
S-Parameters
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
Soldering Profile
Other Technical Information
Subject to change or obsolescence without notice
Rev C
09-Mar-2004
Page 5 of 5
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