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Preliminary Data Sheet
Features
* * * * Usable bandwidth of 4 MHz Single-ended operation Ceramic Surface Mount Package (SMP) Small size
Part Number 855954 380 MHz SAW Filter
*
Package
Surface Mount 3.80 x 3.80 x 1.27 mm
Pin Configuration
Bottom View
1 2 3
0.61 1.27 NOM. 1.45 MAX. 3.80 1.27
7 6 5 8 4
3.80
0.60 1.00
Pin No. 2 3 6 7 1,4,5,8
Description Output Output Return Input Input Return Case ground
1.50
Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width 0.10mm Body: Al2O3 ceramic Lid: Kovar, Ni plated Terminations: Au plating 0.5 - 1.0m, over a 2 - 6m Ni plating
Subject to change or obsolescence without notice
Rev -
31-Oct-2001
Page 1 of 5
Preliminary Data Sheet
Temperature Range: (2) -30 to +70 oC
Part Number 855954 380 MHz SAW Filter
Electrical Specifications (1)
Parameter (3)
Center Frequency, f0 Insertion Loss at 380 MHz 3 dB Bandwidth Passband Ripple (4) 378.1 - 381.9 MHz Phase Linearity 378 - 382 MHz Relative Attenuation 360 - 373 MHz 387 - 400 MHz Source Impedance: (5) Load Impedance: (5) Notes:
1. 2. 3. 4. 5. All specifications are based on the test circuit shown below In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over temperature Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances Passband ripple is the worst case peak to adjacent valley over a frequency range defined by the measured roll off at the passband edges This is the optimum impedance in order to achieve the performance shown
Minimum
4.8 28 28 -
Typical
380 9.5 7.3 0.65 1.1 38 36 50 50
Maximum
11 1.5 4 -
Unit
MHz dB MHz dB p-p deg RMS dB dB
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
12nH 6 2 18pF 50 15nH
50 Single-ended
50
18pF
1,3,4 5,7,8
Subject to change or obsolescence without notice
Rev -
31-Oct-2001
Page 2 of 5
Preliminary Data Sheet
Part Number 855954 380 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice
Rev -
31-Oct-2001
Page 3 of 5
Preliminary Data Sheet
Actual matching values may vary due to PCB layout and parasitics
12nH 6 2 15nH
Part Number 855954 380 MHz SAW Filter
Matching Schematics
50 Single-ended
50
18pF
1,3,4 5,7,8
18pF
50
Marking
Sawtek logo Marking code
PCB Footprint
1.70 4.01 1.19
.81
E JJJYM
ID dot Date code
.41
.46 .81
1.19
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
2.7 12.8 O330 Sawtek logo
0.3 2.0 4.0 O1.5 A 1.75 5.5 4.1 1.8 Section A-A 4.1 8.0 O1.5
A
ID dot O102
12.0
O20.2 O13.0
2.0
Direction of travel
Dimensions shown are nominal in millimeters Packaging quantity: 4000 units/reel
Subject to change or obsolescence without notice
Rev -
31-Oct-2001
Page 4 of 5
Preliminary Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range Storage Temperature Range
Part Number 855954 380 MHz SAW Filter
Symbol
T Tstg
Minimum
-30 -40
Maximum
+70 +85
Unit
o o
C C
Warnings
* * Electrostatic Sensitive Device (ESD) Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips S-Parameters Qualification Flowchart Soldering Profile Other Technical Information
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
Subject to change or obsolescence without notice
Rev -
31-Oct-2001
Page 5 of 5

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