Preliminary Data Sheet
Part Number 855773
204 MHz SAW Filter
Features
For IF applications
Usable bandwidth of 600 KHz
Low loss
High attenuation
Single-ended or Balanced operation
Ceramic Surface Mount Package (SMP)
Small size
Package
Pin Configuration
Surface Mount 7.01 x 5.51 x 1.63 mm
Bottom View
12
11
10
4
5
6
8
9
7
3
2
1
Pin No.
Description
4
Output
6
Output
return
10
Input
12
Input
return
1,2,3,5,6
Case
Ground
7,8,9,11,12 Case
Ground
1.63 NOM.
1.78 MAX.
5.51
0.76
1.14
1.27
1.70
0.79
1.27
7.01
Dimensions shown are nominal in millimeters
All tolerances are
0.15mm except overall
length and width
0.13mm
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 A
29-Apr-2003
Page 1 of 5
Preliminary Data Sheet
Part Number 855773
204 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-10 to +70
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency, f
o
- 204 -
MHz
Insertion Loss at 204 MHz
Excluding losses due to matching
Including losses in matching test circuit shown below
-
-
2.9
6.1
5.3
8.5
dB
dB
1 dB Lower Frequency
1 dB Upper Frequency
-
204.3
203.56
204.43
203.70
-
MHz
MHz
Amplitude Variation
203.7
-
204.3
MHz
-
0.6
1
dB p-p
Group Delay Variation
203.7
-
204.3
MHz
-
26
200
nsec
Rejection
(4)
194
-
200
MHz
200
-
201.5
MHz
206.5
-
209
MHz
209
-
214
MHz
40
40
40
40
45.8
45.6
43.5
46.4
-
-
-
-
dB
dB
dB
dB
Optimal Source Impedance
(5)
-
8
||99nH
-
Optimal Load Impedance
(5)
-
13
||138nH
-
Notes:
1. All specifications are based on the test circuit shown below
2. This specification is valid for room temperature only
3. Electrical margin has been built into the design to account for the variations due to manufacturing tolerances
4. Relative to Insertion loss at 204 MHz
5. This is the complex conjugate of the unmatched filter's impedance resulting in maximum power transfer
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
500
Balanced
input
500
3pF
68nH
3pF
4pF
4pF
1.5pF
1000
82nH
1pF
12
10
6
4
1,2,3,5
7,8,9,11
1000
Balanced
Output
Subject to change or obsolescence without notice
Rev A
29-Apr-2003
Page 2 of 5
Preliminary Data Sheet
Part Number 855773
204 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev A
29-Apr-2003
Page 3 of 5
Preliminary Data Sheet
Part Number 855773
204 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
500
Balanced
input
500
3pF
68nH
3pF
4pF
4pF
1.5pF
1000
82nH
1pF
12
10
6
4
1,2,3,5
7,8,9,11
1000
Balanced
Output
Marking
PCB Footprint
Date code
855773
SAWTEK
ID dot
XXXXXX
5.71
.99
7.21
1.34
1.34
.99
.28
.28
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
Section A-A
0.3
2.2
7.3
5.8
1.5
8.0
4.0
2.0
A
A
1.5
16.0
7.5
1.75
ID dot
2.0
13.0
20.2
330
16.8
2.7
Direction of travel
102
Dimensions shown are nominal in millimeters
Packaging quantity: 3000 units/reel
Subject to change or obsolescence without notice
Rev A
29-Apr-2003
Page 4 of 5
Preliminary Data Sheet
Part Number 855773
204 MHz SAW Filter
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-10
+70
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 A
29-Apr-2003
Page 5 of 5
PDF 
ZIP