Data Sheet
Features
• • • • • For GSM/EDGE applications Usable bandwidth 400 KHz Single-ended and differential operation Ceramic Surface Mount Package (SMP) Small size
Part Number 855885 208 MHz SAW Filter
•
Package
Surface Mount 13.3 x 6.50 x 1.75 mm
Pin Configuration
Bottom View
1
1.75 NOM. 1.96 MAX. 0.76 13.3 2.54 2.18 6.50 2.54
2
3
4 5 6
12 11 10 9 8 7
1.17 x 3.76
0.79
1.50
Pin No. 5 6 11 12 1,2,3,4 7,8,9,10
Description Output Output return Input Input return Case ground Case ground
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 - 1.0µm, over a 2 - 6µm Ni plating
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 1 of 5
Data Sheet
Operating Temperature Range: (2) -10 to +85 oC
Part Number 855885 208 MHz SAW Filter
Electrical Specifications (1)
Parameter (3)
Center Frequency Insertion Loss at Fo 1 dB Lower Frequency 1 dB Upper Frequency 8 dB Lower Frequency 8 dB Upper Frequency 20 dB Lower Frequency 20 dB Upper Frequency Amplitude Variation 207.8 - 208.2 MHz Group Delay Variation 207.8 - 208.2 MHz Absolute Delay 207.8 - 208.2 MHz Absolute Attenuation 10 - 195 MHz 195.0 - 198.5 MHz 198.5 - 202.0 MHz 202.0 - 204.6 MHz 204.6 - 206.2 MHz 206.2 - 206.8 MHz 209.2 - 209.8 MHz 209.8 - 211.4 MHz 211.4 - 214.0 MHz 214.0 - 217.5 MHz 217.5 - 221.0 MHz 221.0 - 450.0 MHz Input/Output VSWR 207.8 - 208.2 MHz Source Impedance (4) Load Impedance (4) Notes:
1. 2. 3. 4.
Minimum
4 208.2 207.4 206.8 0.7 55 43 40 34 25 20 20 25 34 40 43 55 -
Typical
208 5.0 207.724 208.340 207.498 208.571 207.294 208.774 0.38 172 1.113 63 62 51 45 39 31 33 37 45 53 55 60 1.46/1.54 50 50
Maximum
7 207.8 208.6
-
Unit
MHz dB MHz MHz MHz MHz MHz MHz dB p-p nsec µsec dB dB dB dB dB dB dB dB dB dB dB dB Ω Ω
209.2 1 300 1.7 2.3 -
All specifications are based on the test circuit shown on page 4 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 This is the optimum impedance in order to achieve the performance shown
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 2 of 5
Data Sheet
Part Number 855885 208 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 3 of 5
Data Sheet
Actual matching values may vary due to PCB layout and parasitics
150nH 11 120nH 5
Part Number 855885 208 MHz SAW Filter
Matching Schematics
50 Ω Single-ended
50Ω
33pF
1,2,3,4,6 7,8,9,10,12
33pF
50Ω
Marking
1.70
PCB Footprint
13.51 3.53
SAWTEK 855885 XXXXXX
ID Dot Date Code
6.70
.99 .99 8.61 1.55 1.70
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
24.8 2.7 Ø330 ID dot
0.3 2.0 4.0 Ø1.5 A 1.75 11.5 13.9 24
Ø102
Direction of travel Ø20.2 Ø13.0 2.0
2.3 Section A-A 7.1 12.0 Ø1.5 A
Dimensions shown are nominal in millimeters Packaging quantity:2000 units/reel
Subject to change or obsolescence without notice
Rev -
14-Mar-2002
Page 4 of 5
Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range Storage Temperature Range Input Power
Part Number 855885 208 MHz SAW Filter
Symbol
T Tstg Pin
Minimum
-10 -40 -
Typical +25 -
Maximum
+85 +125 10
Unit
C C dBm
o o
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
Subject to change or obsolescence without notice
Phone: +1 (407) 886-8860 Fax: +1 (407) 886-7061 Email: custservice@sawtek.com Web: www.sawtek.com
Rev -
Or contact one of our worldwide Network of sales offices, Representatives or distributors
14-Mar-2002
Page 5 of 5
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