saw components saw rf filter digital radio series/type: ordering code: b1644 B39232B1644U510 date: version: may 29, 2013 2.7 ? epcos ag 2015. reproduction, publicati on and dissemination of this publicatio n, enclosures hereto and the information contained therein without epcos' pr ior express consent is prohibited. epcos ag is a tdk group company.
2 may 29, 2013 b1644 2338.75 mhz please read cautions and warnings and important notes at the end of this document. saw components saw rf filter data sheet application n low-loss rf filter for digital radio n impedance transformation from 50 w to 100 w n unbalanced to balanced operation n very low insertion attenuation n low amplitude ripple n usable passband 12.5 mhz features n package size 3.0 x3.0 x 1.1 mm 3 n package code dcc6d n rohs compatible n approximate weight 0.037 g n package for s urface m ount t echnology ( smt ) n ni, gold-plated terminals n lead free soldering compatible with j - std20c n aec-q200 qualified component family n e lectrostatic s ensitive d evice ( esd ) pin configuration n 2 input n 4,6 output, balanced n 1,3,5 to be grounded 1,3,5 2 4 6
3 may 29, 2013 b1644 2338.75 mhz saw components saw rf filter data sheet please read cautions and warnings and important notes at the end of this document. characteristics temperature range for specification: t = C20 ?c to +85 ?c terminating source impedance: z s =50 w terminating load impedance: z l = 100 w (balanced) min. typ. @ 25 ?c max. nominal frequency f n 2338.75 mhz maximum insertion attenuation a max 2332.5 ... 2345.0 mhz 2.4 3.5 db amplitude ripple (p-p) da 2332.5 ... 2345.0 mhz 0.4 1.6 db output amplitude balance (|s 31 /s 21 |) 2332.5 ... 2345.0 mhz C1.2 -0.7/0.0 1.5 db output phase balance ( f (s 31 ) C f (s 21 )+180?) 2332.5 ... 2345.0 mhz C9.0 -7.0/-1.8 1.0 ? return loss 10.0 15.0 db attenuation a 88.0 ... 108.0 mhz 50 65 db 880.0 ... 960.0 mhz 40 56 db 1710.0 ... 1910.0 mhz 38 43 db 2305.0 mhz 11 db 2310.0 mhz 9 db 2315.0 mhz 9 db 2320.0 mhz 6 db 2450.0 mhz 20 25 db 3060.0 mhz 35 50 db group delay ripple (p-p) 2332.5 ... 2345.0 mhz 3 15 ns
4 may 29, 2013 b1644 2338.75 mhz please read cautions and warnings and important notes at the end of this document. saw components saw rf filter data sheet characteristics temperature range for specification: t = C40 ?c to+105 ?c terminating source impedance: z s =50 w terminating load impedance: z l = 100 w (balanced) min. typ. @ 25 ?c max. nominal frequency f n 2338.75 mhz maximum insertion attenuation a max 2332.5 ... 2345.0 mhz 2.4 4.8 db amplitude ripple (p-p) da 2332.5 ... 2345.0 mhz 0.4 2.9 db output amplitude balance (|s 31 /s 21 |) 2332.5 ... 2345.0 mhz C5.0 -0.7/0.0 3.5 db output phase balance ( f (s 31 ) C f (s 21 )+180?) 2332.5 ... 2345.0 mhz C12.0 -7.0/-1.8 8.0 ? return loss 10.0 15.0 db attenuation a 88.0 ... 108.0 mhz 50 65 db 880.0 ... 960.0 mhz 40 56 db 1710.0 ... 1910.0 mhz 38 43 db 2305.0 mhz 11 db 2310.0 mhz 9 db 2315.0 mhz 9 db 2320.0 mhz 6 db 2450.0 mhz 20 25 db 3060.0 mhz 35 50 db group delay ripple (p-p) 2332.5 ... 2345.0 mhz 3 20 ns
5 may 29, 2013 b1644 2338.75 mhz saw components saw rf filter data sheet please read cautions and warnings and important notes at the end of this document. transfer function maximum ratings operable temperature range t C45/+125 ?c storage temperature range t stg C45/+125 ?c dc voltage v dc 6 v esd voltage v esd 50 1) 1) according to jesd22-a115b, 50v, machine model, 10 negative & 10 positive pulses. v machine model, 10 pulses v esd 200 2) 2) acc. to jesd22-a114f (human body model), 1 negative & 1 positive pulse. v human body model, 1 pulse input power at 2332.5 mhz...2345.0 mhz p in 0 dbm source impedance 50 w
6 may 29, 2013 b1644 2338.75 mhz please read cautions and warnings and important notes at the end of this document. saw components saw rf filter data sheet transfer function (passband) transfer function (wideband)
7 may 29, 2013 b1644 2338.75 mhz saw components saw rf filter data sheet please read cautions and warnings and important notes at the end of this document. esd protection of saw filters saw filters are e lectro s tatic d ischarge sensitive devices. to reduce the probability of damages caused by esd, special matching topologies have to be applied. in general, esd matching has to be ensured at that filter port, where electrostatic discharge is expected. electrostatic discharges predominantly appear at the antenna input of rf receivers. therefore only the input matching of the saw filter has to be designed to short circuit or to block the esd pulse. below three figures show recommended esd matching topologies. for wideband filters the high-pass esd matching structure needs to be at least of 3 rd order to ensure a proper matching for any impedance value of antenna and saw filter input. the required component values have to be determined from case to case. fig. 1 mlc varistor plus esd matching fig. 2 suppressor diode plus esd matching in cases where minor esd occur, following simplified esd matching topologies can be used alternatively. fig. 3 3 rd order high-pass structure for basic esd protection in all three figures the shunt inductor lp2 could be replaced by a shorted microstrip with proper length and width. if this configuration is possible depends on the operating frequency and available pcb space. effectiveness of the applied esd protection has to be checked according to relevant industry standards or customer specific requirements for further information, please refer to epcos application report: esd protection for saw filters . this report can be found under www.epcos.com/rke.click on applications notes. mlc1 cs1 lp2 cs3 to output matching dp1 lp2 cs3 cs1 to output matching lp2 cs3 cs1 to output matching
8 may 29, 2013 b1644 2338.75 mhz please read cautions and warnings and important notes at the end of this document. saw components saw rf filter data sheet references type b1644 ordering code B39232B1644U510 marking and package c61157-a7-a68 packaging f61074-v8168-z000 date codes l_1126 s-parameters b1644_nb.s3p see file header for port/pin assignment table. soldering profile s_6001 rohs compatible rohs-compatible means that products are compatible with the requirements according to art. 4 (substance restrictions) of di- rective 2011/65/eu of the european parliament and of the council of june 8 th , 2011, on the restriction of the use of certain hazardous substances in electrical and electronic equipment ("directive") with due regard to the application of exemptions as per annex iii of the directive in certain cases. matching coils see inductor pdf-catalog http:// www .tdk.co.jp/tefe02/coil.htm#aname1 and data library for circuit simulation http://www.tdk.co.jp/etvcl/index.htm for a large variety of matching coils. for further information please contact your local epcos sales office or visit our webpage at w ww.epcos.com . published by epcos ag systems, acoustics, waves business group p.o. box 80 17 09, 81617 munich, germany ? epcos ag 2013. this brochure replaces the previous edition. for questions on technology, prices and delivery please contact the sales offices of epcos ag or t he international representatives. due to technical requirements components may contain dangerous substances. for information on t he type in question please also contact one of our sales offices.
9 may 29, 2013 important notes t he 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 speci?cation is suitable for use in a particular customer application. 2. we also point out that in individual cases, a malfunction of 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 speci?ed. in customer applications requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of an 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 an electronic component. 3. the warnings, cautions and product-speci?c notes must be observed. 4. 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 of?ces. 5. 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 speci?cations. please check therefore to what extent product descriptions and speci?cations 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 . conse- quently, we cannot guarantee that all products named in this publication will always be available. the aforementioned does not apply in the case of individual agreements deviating from the foregoing for customer-speci?c products. 6. 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) . 7. the trade names epcos, baoke, alu-x, ceradiode, ceralink, csmp, cssp, ctvs, deltacap, digisimic, dssp, filtercap, formfit, miniblue, minicell, mkd, mkk, mlsc, motorcap, pcc, phasecap, phasecube, phasemod, phicap, siferrit, sifi, sikorel, silvercap, simdad, simic, simid, sineformer, siov, sip5d, sip5k, thermofuse, 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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