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SAW Components
SAW IF filter
Satellite radio
Series/type: Ordering code: Date: Version:
B1708 B39725B1708H310 May 16, 2006 1.1
(c) EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited.
SAW Components SAW IF filter Data sheet
Application
s s s s s
B1708 72.54 MHz
IF filter for digital radio Usable bandwidth 3.7 MHz Low insertion attenuation Constant group delay Unbalanced or balanced operation
Features Package size 7.0 x 5.0 x 1.48 mm3 Package code QCC12C RoHS compatible Approximate weight 0.20 g Ceramic package for Surface Mount Technology (SMT) s Ni, gold-plated terminals s Electrostatic Sensitive Device (ESD)
s s s s s
Pin configuration
s s s s s s
4 6 10 12 3,9 1,2,7,8
Balanced input or input ground Input Balanced output or output ground Output Case - ground To be grounded
6
10
4
12
3,9
Please read cautions and warnings and important notes at the end of this document.
2
May 16, 2006
SAW Components SAW IF filter Data sheet
Characteristics Temperature range for specification: Terminating source impedance: Terminating load impedance: T = -40 C to (+85 C) +105 C ZS = 27 and matching network ZL = 1 k and matching network min. Nominal frequency Minimum insertion attenuation1) Maximum voltage gain source - load
(VL/VS)
B1708 72.54 MHz
fN min vgsl
-- -- -4.2
typ. @ 25 C 72.54 14.5 -2.7
max. -- 16.0 -- MHz dB dB
Amplitude ripple (p-p) fN 1.85 MHz Pass bandwidth rel 1.5 dB rel 3 dB rel 15 dB rel 30 dB
--
1.0
(1.3) 1.5
dB
B1.5dB B3dB B15dB B30dB
-- -- -- --
4.0 4.3 5.7 6.6
-- -- 5.9 7.0
MHz MHz MHz MHz
Mean attenuation (relative to min) rel Upper sidelobe 86.47 ... 91.53 MHz Relative attenuation (relative to min) rel Lower sidelobe 50.00 ... 65.00 MHz 65.00 ... 66.48 MHz 66.48 ... 68.08 MHz Upper sidelobe 77.30 ... 78.60 MHz 78.60 ... 86.47 MHz 86.47 ... 91.53 MHz 91.53 ... 95.21 MHz 95.21 ... 100.00 MHz Group delay ripple (p-p) Aperture 50 kHz fN 1.85 MHz Temperature coefficient of frequency
1)
48.0
53.0
--
dB
40.0 33.0 32.0 32.0 36.0 44.0 44.0 46.0
44.0 38.0 36.0 36.0 41.0 48.0 48.0 50.0
-- -- -- -- -- -- -- --
dB dB dB dB dB dB dB dB
-- --
210 -18
-- --
ns ppm/K
TCf
Including losses in the matching network
Please read cautions and warnings and important notes at the end of this document.
3
May 16, 2006
SAW Components SAW IF filter Data sheet
B1708 72.54 MHz
Matching network1) (based on four port measurement, quality factors QL = 40, QC = 90) Cs1 Cs4 Cs1 = 20 pF Lp2 Lp3 Lp2 = 220 nH Lp3 = 620 nH Cs4 = 3.6 pF Cs1 Cs4
1) The input matching circuit has been designed as a power match of the filter's input port to 175 . In a second step it has been optimized in a narrow range in order to operate at 27 with optimum filter performance.
Please read cautions and warnings and important notes at the end of this document.
4
May 16, 2006
SAW Components SAW IF filter Data sheet
Transfer function
B1708 72.54 MHz
Transfer function (pass band)
Please read cautions and warnings and important notes at the end of this document.
5
May 16, 2006
SAW Components SAW IF filter Data sheet
Characteristics Temperature range for specification: Terminating source impedance: Terminating load impedance:
B1708 72.54 MHz
T = -40 C to +85 C ZS = 50 (single ended) and matching network ZL = 50 (single ended) and matching network min. typ. @ 25 C 72.54 12.9 max. -- 14.4 MHz dB
Nominal frequency Minimum insertion attenuation1)
fN min
-- --
Amplitude ripple (p-p) fN 1.85 MHz Pass bandwidth rel 1.5 dB rel 3 dB rel 15 dB rel 30 dB
--
1.2
1.5
dB
B1.5dB B3dB B15dB B30dB
-- -- -- --
4.0 4.4 5.8 6.7
-- -- 6.0 7.0
MHz MHz MHz MHz
Mean attenuation (relative to min) rel Upper sidelobe 86.47 ... 91.53 MHz Relative attenuation (relative to min) rel Lower sidelobe 50.00 ... 65.00 MHz 65.00 ... 66.48 MHz 66.48 ... 68.08 MHz Upper sidelobe 77.30 ... 78.60 MHz 78.60 ... 86.47 MHz 86.47 ... 91.53 MHz 91.53 ... 95.21 MHz 95.21 ... 100.00 MHz Group delay ripple (p-p) Aperture 50 kHz fN 1.85 MHz Temperature coefficient of frequency
1)
48.0
52.0
--
dB
34.0 36.0 34.0 28.0 34.0 42.0 44.0 48.0
38.0 42.0 38.0 32.0 39.0 46.0 48.0 53.0
-- -- -- -- -- -- -- --
dB dB dB dB dB dB dB dB
-- --
190 -18
-- --
ns ppm/K
TCf
Including losses in the matching network
Please read cautions and warnings and important notes at the end of this document.
6
May 16, 2006
SAW Components SAW IF filter Data sheet
Matching network (based on four port measurement, quality factors QL = 40, QC = 90)
B1708 72.54 MHz
Ls1
Ls3 Ls1 = 620 nH Lp2 = 750 nH Ls3 = 560 nH
Lp2
Maximum ratings Operable temperature range T Storage temperature range DC voltage Source power Tstg VDC PS -40 / +105 C -40 / +105 C 0 10 V dBm source impedance 50
Please read cautions and warnings and important notes at the end of this document.
7
May 16, 2006
SAW Components SAW IF filter Data sheet
Transfer function
B1708 72.54 MHz
Transfer function (pass band)
Please read cautions and warnings and important notes at the end of this document.
8
May 16, 2006
SAW Components SAW IF filter Data sheet
B1708 72.54 MHz
References Type Ordering code Marking and package Packaging Date codes S-parameters Soldering profile RoHS compatible B1708 B39725B1708H310 C61157-A7-A95 F61074-V8170-Z000 L_1126 B1708_NB_UN.s4p S_6001 defined as compatible with the following documents: "DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. 2005/618/EC from April 18th, 2005, amending Directive 2002/95/EC of the European Parliament and of the Council for the purposes of establishing the maximum concentration values for certain hazardous substances in electrical and electronic equipment."
For further information please contact your local EPCOS sales office or visit our webpage at www.epcos.com . Published by EPCOS AG Surface Acoustic Wave Components Division P.O. Box 80 17 09, 81617 Munich, GERMANY (c) EPCOS AG 2006. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices.
Please read cautions and warnings and important notes at the end of this document.
9
May 16, 2006
Important notes
The following applies to all products named in this publication: 1. Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specification is suitable for use in a particular customer application. We also point out that in individual cases, a malfunction of passive electronic components or failure before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. In customer applications requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of a passive electronic component could endanger human life or health (e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or failure of a passive electronic component. The warnings, cautions and product-specific notes must be observed. In order to satisfy certain technical requirements, some of the products described in this publication may contain substances subject to restrictions in certain jurisdictions (e.g. because they are classed as "hazardous"). Useful information on this will be found in our Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed questions, please contact our sales offices. We constantly strive to improve our products. Consequently, the products described in this publication may change from time to time. The same is true of the corresponding product specifications. Please check therefore to what extent product descriptions and specifications contained in this publication are still applicable before or when you place an order. We also reserve the right to discontinue production and delivery of products. Consequently, we cannot guarantee that all products named in this publication will always be available. Unless otherwise agreed in individual contracts, all orders are subject to the current version of the "General Terms of Delivery for Products and Services in the Electrical Industry" published by the German Electrical and Electronics Industry Association (ZVEI). The trade names EPCOS, CeraDiode, CSSP, PhaseCap, PhaseMod, SIFI, SIKOREL, SilverCap, SIMID, SIOV, SIP5D, SIP5K, TOPcap, UltraCap, WindCap are trademarks registered or pending in Europe and in other countries. Further information will be found on the Internet at www.epcos.com/trademarks.
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May 16, 2006

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