Data Sheet
Part Number 856441
881.5 MHz SAW Filter
Features
• For GSM-850 applications
• Usable bandwidth of 25 MHz
• Compatible with leading chipset suppliers
• Ultra low loss
• Single-ended input, 50Ω
• Balanced output, 200Ω
• Chip Scale Package (CSP)
• Hermetic
•
Package Pin Configuration
Surface Mount 1.50 x 1.50 x 0.76 mm Bottom View
123
654
Pin No. Description
2 Input
4,6 Output
1,3,5 Case ground
0.25
0.55
0.40
0.60
1.35
1.50
1.35
1.50
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
Subject to change or obsolescence without notice Rev C 08-Dec-2004 Page 1 of 6
Data Sheet
Part Number 856441
881.5 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) +25
oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 881.5 - MHz
Maximum Insertion Loss
869 - 894 MHz
-
1.2
1.5
dB
Amplitude Variation
869 - 894 MHz
-
0.4
1.2
dB p-p
Absolute Attenuation
10 - 824 MHz
824 - 842 MHz
842 - 849 MHz
914 - 970 MHz
970 - 2607 MHz
2607 - 2682 MHz
2682 - 4345 MHz
4345 - 4470 MHz
4470 - 6000 MHz
30
30
22
18
22
41
38
37
38
42
35
24
19.5
30
52
40
55
42
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
Output Amplitude Balance (|S31/S21|)
869 - 894 MHz
-1
0.7
1
dB
Output Phase Balance [Φ(S31)-ΦS21+180]
869 - 894 MHz
-10
7
10
degree
Input/Output VSWR
869 - 894 MHz
-
1.7
2.5
Source Impedance (4) - 50 -
Ω
Load Impedance (Balanced) (4) - 200||30nH - 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:
50 Ω
Single-ended
Input
1,3,5
24
50Ω6
200 Ω
30nH
200 Ω
Balanced
Output
Subject to change or obsolescence without notice Rev C 08-Dec-2004 Page 2 of 6
Data Sheet
Part Number 856441
881.5 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) -25 to +80 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 881.5 - MHz
Maximum Insertion Loss
869 - 894 MHz
-
1.2
1.9
dB
Amplitude Variation
869 - 894 MHz
-
0.4
1.2
dB p-p
Absolute Attenuation
10 - 824 MHz
824 - 842 MHz
842 - 849 MHz
914 - 970 MHz
970 - 2607 MHz
2607 - 2682 MHz
2682 - 4345 MHz
4345 - 4470 MHz
4470 - 6000 MHz
30
30
22
18
22
41
38
37
38
42
35
24
19.5
30
52
40
55
42
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
Output Amplitude Balance (|S31/S21|)
869 - 894 MHz
-1
0.7
1
dB
Output Phase Balance [Φ(S31)-ΦS21+180]
869 - 894 MHz
-10
7
10
degree
Input/Output VSWR
869 - 894 MHz
-
1.7
2.5
Source Impedance (4) - 50 -
Ω
Load Impedance (Balanced) (4) - 200||30nH - 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:
50 Ω
Single-ended
Input
1,3,5
24
50Ω6
200 Ω
30nH
200 Ω
Balanced
Output
Subject to change or obsolescence without notice Rev C 08-Dec-2004 Page 3 of 6
Data Sheet
Part Number 856441
881.5 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev C 08-Dec-2004 Page 4 of 6
Data Sheet
Part Number 856441
881.5 MHz SAW Filter
Matching Schematics
50 Ω
Single-ended
Input
1,3,5
24
50Ω6
200 Ω
30nH
200 Ω
Balanced
Output
Marking PCB Footprint
7
WWY
M
Date code
MFG site
ID dot
Marking
code
0.20
0.70
0.50
0.35
1.45
1.45
The date code consists of: WW = 2 digit week,
Y = last digit of year, M = manufacturing site code
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
A
A
Section A-A
0.25
1.09
1.83
1.83
Ø1.5
Ø1.0
4.0
4.0
2.0
8.0
3.5
1.75
8.8
ID dot
2.0
Direction of travel
Ø330
Ø20.2
Ø13.0
Ø102
2.7
Dimensions shown are nominal in millimeters
Packaging quantity: 10000 units/reel
Subject to change or obsolescence without notice Rev C 08-Dec-2004 Page 5 of 6
Data Sheet
Part Number 856441
881.5 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Operating Temperature Range T -25 +80 oC
Storage Temperature Range Tstg -40 +85
oC
Warnings
• Electrostatic Sensitive Device (ESD)
• Avoid ultrasonic exposure
Material Content
• Does not contain lead (Pb) or other RoHS restricted materials
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 C 08-Dec-2004 Page 6 of 6
