1. general description the tda18254ahn is a silicon tuner ic designed specifica lly for high definition multi-tuner cable set top boxes (stb) suppor ting single streaming and multi-streaming pvr stbs with watch, record , video-on-demand (vod) and in-home video distribution capability. used in conjunction with the tda10024hn (digital channel demodulator), the tda18254ahn covers all worldwide digital cable standards. ? the tda18254ahn ensures a low system cost as: ? costly components such as low-noise am plifiers, surface acoustic wave (saw) filters are eliminated from the system bom ? the tda18254ahn high -performance s ilicon tuner meets today?s digital cable tv reception needs with: ? same level of performance for master and slave tuners ? low power consumption ? high linearity ? low noise figure ? the tda18254ahn ensures ease of use with: ? easy on-board integration ? efficient and effective pcb design ? reduced external components 2. features and benefits ? supports 4 tuner functions specifically aimed for pvr boxes: ? 1 low if output ? 3 rf outputs to drive slave tuners ? integrated wideband gain control ? extended frequency coverage up to 1002 mhz ? integrated rf tracking filters for rejection of unwanted signals ? single 3.3 v power supply ? low power consumption ? multistandard cable receptions ? enhanced rf and if filters to increase se lectivity and adjacent channels filtering ? rf loop-through ? fully integrated if selectiv ity, eliminating the need for external saw filters tda18254ahn cable silicon tuner rev. 4 ? 10 may 2011 product short data sheet
tda18254ahn_sds all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product short data sheet rev. 4 ? 10 may 2011 2 of 8 nxp semiconductors tda18254ahn cable silicon tuner ? alignment free ? fully integrated oscillators: ? no external oscillator co mponents for reduced cost ? 16 mhz crystal oscillator output buff er for single crys tal applications ? i 2 c-bus provides: ? 3.3 v microcontro ller compatibility ? received signal strength indicator (rssi) data access ? die temperature sensor data access ? lead-free (pb) manufacturing 3. quick reference data 4. ordering information table 1. quick reference data symbol parameter conditions min typ max unit f rf rf frequency edge 51 - 1002 mhz nf tun tuner noise figure maximum gain - 7.5 8.5 db ? n phase noise worst case in the rf frequency range 10 khz - ? 85 - dbc/hz 100 khz - ? 105 - dbc/hz p power dissipation - 0.91 - w image image rejection 55 62 - db table 2. ordering information type number package name description version tda18254ahn/c1 hvqfn48 plastic thermal e nhanced very thin quad flat package; no leads; 48 terminals; body 7 7 0.85 mm sot619-1
tda18254ahn_sds all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product short data sheet rev. 4 ? 10 may 2011 3 of 8 nxp semiconductors tda18254ahn cable silicon tuner 5. block diagram 6. limiting values [1] it withstands class iv of jedec standard. 7. abbreviations fig 1. block diagram 001aal335 46 lt 3 rf_in agc1 agc1bis agc2b rf selectivity 48 mto1 6 mto2 5 mto3 tda18254ahn if selectivity if agc level control i 2 c-bus interface as scl sda 22 35 36 synthesizer vtlo cplo 14 15 crystal oscillator xtal_p xtal_n 16 17 31 30 32 ifo_p ifo_n vifagc 19 20 xto_p xto_n mixer table 3. limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min max unit v cc supply voltage ? 0.3 +3.60 v v i input voltage v cc < 3.3 v ? 0.3 v cc + 0.3 v v cc > 3.3 v ? 0.3 +3.6 v t stg storage temperature ? 40 +150 c t j junction temperature - 105 c v esd electrostatic discharge voltage eia/jesd22-a114 (human body model) 2-kv eia/jesd22-c101-c (fcdm) [1] 1.5 - kv table 4. abbreviations acronym description agc automatic gain control bom bill of materials fcdm field-induced charged-device model ic integrated circuit id identity
tda18254ahn_sds all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product short data sheet rev. 4 ? 10 may 2011 4 of 8 nxp semiconductors tda18254ahn cable silicon tuner 8. revision history [1] revisions 1 and 2 are not available. if intermediate frequency jedec joint electron device engineering council pcb printed circuit board pvr personal video recorder rf radio frequency rssi received signal strength indicator saw surface acoustic wave scl serial clock sda serial data stb set top box xtal crystal table 4. abbreviations ?continued acronym description table 5. revision history document id release date data sheet status change notice supersedes tda18254ahn_sds v.4 20110510 product short data sheet - tda18254ahn_sds v.3 modifications: ? figure 1 : updated tda18254ahn_sds v.3 [1] 20100913 product short data sheet - -
tda18254ahn_sds all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product short data sheet rev. 4 ? 10 may 2011 5 of 8 nxp semiconductors tda18254ahn cable silicon tuner 9. legal information 9.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 9.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer , unless nxp semiconductors and customer have explicitly agreed otherwis e in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 9.3 disclaimers limited warranty and liability ? information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interrupt ion, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors? aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of nxp semiconductors. right to make changes ? nxp semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use ? nxp semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors accepts no liability for inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer?s own risk. applications ? applications that are described herein for any of these products are for illustrative purpos es only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. customers are responsible for the design and operation of their applications and products using nxp semiconductors products, and nxp semiconductors accepts no liability for any assistance with applications or customer product design. it is customer?s sole responsibility to determine whether the nxp semiconductors product is suitable and fit for the customer?s applications and products planned, as well as fo r the planned application and use of customer?s third party customer(s). customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nxp semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer?s applications or products, or the application or use by customer?s third party customer(s). customer is responsible for doing all necessary testing for the customer?s applic ations and products using nxp semiconductors products in order to av oid a default of the applications and the products or of the application or use by customer?s third party customer(s). nxp does not accept any liability in this respect. limiting values ? stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any lic ense under any copyrights, patents or other industrial or intellectual property rights. export control ? this document as well as the item(s) described herein may be subject to export control regulations. export might require a prior authorization from national authorities. document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this docu ment contains the product specification.
tda18254ahn_sds all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product short data sheet rev. 4 ? 10 may 2011 6 of 8 nxp semiconductors tda18254ahn cable silicon tuner quick reference data ? the quick reference data is an extract of the product data given in the limiting values and characteristics sections of this document, and as such is not comple te, exhaustive or legally binding. non-automotive qualified products ? unless this data sheet expressly states that this specific nxp semicon ductors product is automotive qualified, the product is not suitable for automotive use. it is neither qualified nor tested in accordance with automotive testing or application requirements. nxp semiconductors accepts no liabili ty for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. in the event that customer uses t he product for design-in and use in automotive applications to automotive s pecifications and standards, customer (a) shall use the product without nxp semiconductors? warranty of the product for such automotive applicat ions, use and specifications, and (b) whenever customer uses the product for automotive applications beyond nxp semiconductors? specifications such use shall be solely at customer?s own risk, and (c) customer fully indemnifies nxp semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive app lications beyond nxp semiconductors? standard warranty and nxp semiconduct ors? product specifications. 9.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. i 2 c-bus ? logo is a trademark of nxp b.v. silicon tuner ? is a trademark of nxp b.v. 10. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com
tda18254ahn_sds all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product short data sheet rev. 4 ? 10 may 2011 7 of 8 nxp semiconductors tda18254ahn cable silicon tuner 11. tables table 1. quick reference data . . . . . . . . . . . . . . . . . . . . .2 table 2. ordering information . . . . . . . . . . . . . . . . . . . . .2 table 3. limiting values . . . . . . . . . . . . . . . . . . . . . . . . . .3 table 4. abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 3 table 5. revision history . . . . . . . . . . . . . . . . . . . . . . . . . 4 12. figures fig 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
nxp semiconductors tda18254ahn cable silicon tuner ? nxp b.v. 2011. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 10 may 2011 document identifier: tda18254ahn_sds please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 13. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 quick reference data . . . . . . . . . . . . . . . . . . . . . 2 4 ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . 4 9 legal information. . . . . . . . . . . . . . . . . . . . . . . . 5 9.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . . 5 9.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 9.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 9.4 trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 10 contact information. . . . . . . . . . . . . . . . . . . . . . 6 11 tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 12 figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 13 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
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