Preliminary Data Sheet
Part Number 856151
240 MHz SAW Filter
Features
For CDMA applications
Usable 1dB bandwidth of 1.1 MHz
Low loss
High attenuation
Single-ended operation
Ceramic Surface Mount Package (SMP)
Package
Pin Configuration
Surface Mount 19.00 x 6.50 x 1.75 mm
Bottom View
10 9 8
7 6
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
R0.51
1.91
2.31
1.02
1.80
0.76
19.0
6.50
1.75 NOM.
1.96 MAX.
Dimensions shown are nominal in millimeters
All tolerances are
0.15mm except overall
length and width +0.15mm/-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 -
30-Jan-2003
Page 1 of 5
Preliminary Data Sheet
Part Number 856151
240 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
30-Jan-2003
Page 2 of 5
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
239.45 - 240.55 MHz
-
13
16
dB
Lower 1 dB Bandedge
(4)
Upper 1 dB Bandedge
-
240.55
239.39
240.68
239.45
-
MHz
MHz
Lower 10 dB Bandedge
(4)
Upper 10 dB Bandedge
239.1
-
239.19
240.83
-
240.9
MHz
MHz
Attenuation
237.5
-
238.3
MHz
238.3
-
238.75
MHz
241.25 - 241.7
MHz
241.7 - 242.5 MHz
35
25
25
35
50
39
38
50
-
-
-
-
dB
dB
dB
dB
Amplitude Variation
239.45 - 240.55 MHz
-
0.6
1.0
dB p-p
Phase Variation
239.45 - 240.55 MHz
-
2
6
degree
Absolute Group Delay
- 2.5
3.5
sec
Group Delay Variation
239.45 - 240.55
MHz
-
90
200
nsec
Rejection
170
-
237.5
MHz
242.5
-
310
MHz
40
40
46
45
-
-
dB
dB
Input/Output Return Loss
239.45 - 240.55
MHz
10
14
-
dB
Source Impedance
(5)
- 50 -
Load Impedance
(5)
- 50 -
Substrate Material
- Quartz - -
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. All attenuation measurements are measured relative to minimum insertion loss
5. This is the optimum impedance in order to achieve the performance shown
Manual Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
50
Single-ended
1,2,3,4
6,7,8,9
50
39pF
12nH
39pF
10
5
18nH
50
7
Preliminary Data Sheet
Part Number 856151
240 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev -
30-Jan-2003
Page 3 of 5
Preliminary Data Sheet
Part Number 856151
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
39pF
12nH
39pF
10
5
18nH
50
7
Marking
PCB Footprint
XXXXXX
856151
SAWTEK
Date Code
ID Dot
2.00
6.70
8.84
.69
1.22
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
1.5
12.0
2.3
4.0
0.3
2.0
0.20
Section A-A
7.1
19.6
R0.75
1.75
1.5
14.2
28.4
32.0
A
A
ID dot
Direction of travel
330
102
2.7
13.0
20.2
2.0
32.8
Dimensions shown are nominal in millimeters
Packaging quantity: 2000 units/reel
Subject to change or obsolescence without notice
Rev -
30-Jan-2003
Page 4 of 5
Preliminary Data Sheet
Part Number 856151
240 MHz SAW Filter
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-10
+85
o
C
Storage Temperature Range
T
stg
-40 +85
o
C
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
S-Parameters
Sawtek's liability is limited only to the Surface Acoustic Wave (SAW) component(s) described in this data sheet. Sawtek does not accept any liability for
applications, processes, circuits or assemblies which are implemented using any Sawtek component described in this data sheet.
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 -
30-Jan-2003
Page 5 of 5
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