Preliminary Data Sheet
Part Number 856092
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice Rev A 09-Sep-2002 Page 1 of 5
Features
• For DCS applications
• Usable bandwidth 75 MHz
• Low loss
• High attenuation
• Single-ended operation at 50 Ω
• Ceramic Surface Mount Package (SMP)
• Small size
•
Package Pin Configuration
Surface Mount 2.50 x 2.00 x 0.76 mm Bottom View
34
21
0.3X45°
CHAMFER
0.84
1.54
0.58
1.302.00
2.50
0.76 NOM.
0.84 MAX.
Dimensions shown are nominal in millimeters
All tolerances are ±0.10mm
Body: Al2O3 ceramic
Lid: Kovar or Alloy 42, Au over Ni plated
Terminations: Au plating 0.5 - 1.0µm,
over a 2 - 6µm Ni plating
Pin No. Description
1 Input
3 Output
2,4 Case ground
Preliminary Data Sheet
Part Number 856092
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice Rev A 09-Sep-2002 Page 2 of 5
Electrical Specifications (1)
Operating Temperature Range: (2) -20 to +70 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 1842.5 - MHz
Maximum Insertion Loss
1805 - 1880 MHz
-
2.7
3.5
dB
Absolute Attenuation
DC - 1000 MHz
1000 - 1700 MHz
1700 - 1765 MHz
1765 - 1785 MHz
1907 - 1914 MHz
1914 - 1980 MHz
1980 - 3000 MHz
3000 - 6000 MHz
30
25
20
8
11
25
25
30
30
27
24
11
33
35
31
34
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
Input Return Loss
1805 - 1880 MHz
10
17
-
dB
Output Return Loss
1805 - 1880 MHz
10
13
-
dB
Source Impedance (4) - 50 -
Ω
Load Impedance (4) - 50 -
Ω
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. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
50 Ω
Single-ended
2,4
13
50 50
ΩΩ
2nH 2nH
Preliminary Data Sheet
Part Number 856092
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice Rev A 09-Sep-2002 Page 3 of 5
Typical Performance (at +25oC)
Preliminary Data Sheet
Part Number 856092
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice Rev A 09-Sep-2002 Page 4 of 5
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50 Ω
Single-ended
2,4
13
50 50
ΩΩ
2nH 2nH
Marking PCB Footprint
Sawtek
logo code
Marking
Date code
ID dot
JJJYM
J
.51
.51
1.04
.78
2.59
CHAMFER
.36x45°
2.08
The date code consists of: JJJ = Julian day,
Y = last digit of year, M = manufacturing site code
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
1.75
3.5 8.0
A
A
2.0
4.0
4.0
Ø1.0
Ø1.5
2.75
1.1
0.3
Section A-A
2.23
Direction of travel
2.0
Ø13.0
Ø20.2
Ø102
Ø330
8.8
2.7
logo
ID dot
Dimensions shown are nominal in millimeters
Packaging quantity: 10000 units/reel
Preliminary Data Sheet
Part Number 856092
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice Rev A 09-Sep-2002 Page 5 of 5
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Operating Temperature Range T -30 +85 oC
Storage Temperature Range Tstg -40 +85
oC
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
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
