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technical overview keysight technologies digital cable tv x-series measurement application n6152 a & w6152 a
2 figure 1. dvb-c modulation accuracy. key parameter setup C radio standards: dvb-c (j.83/a), j.83/b, and j.83/c C symbol rate with standard default and settable by users C modulation: 16/32/64/128/256qam for dvb-c and j.83/c and 64/256/1024qam for j.83/b C adaptive equalizer with filter length and convergence settings C advanced settings: meas interval, low snr enhancement, out-of- band filter, and more. C input: rf or analog iq (only avail - able in the n9030a pxa or n9020a mxa) for signal quality and modu - lation accuracy measurements the keysight technologies, inc. n/w6152a provides one-button, standard-based power and modulation analysis capabilities to help your design, evaluation, and manufactur - ing of digital cable tv modulators, transmitters, amplifiers, and tuners. with the optional analog baseband iq inputs in the pxa or mxa signal analyzer, it can also provide the flex - ibility of measuring signal quality and modulation accuracy with rf input or analog iq input. the n/w6152a measurement applica - tion is just one in a common library of more than 25 advanced measurement applications in the keysight x-series. the keysight x-series is an evolution - ary approach to signal analysis that spans instrumentation, measure - ments, and software. the x-series analyzers, with upgrade - able cpu, memory, disk drives, and i/o ports, enable you to keep your test assets current and extend instrument longevity. proven algorithms, 100% code-compatibility, and a common ui across the x-series create a consistent measurement framework for signal analysis that ensures repeatable results and measurement integrity so you can leverage your test system software through all phases of product development. in addition to fixed, perpetual licenses for our x-series measurement applications, we also offer transportable licenses which can increase the value of your investment by allowing to you transport the appli - cation to multiple x-series analyzers. C measure digital cable tv rf trans - mitter, modulator, tuner, or amplifier performance C easy-to-use, standard-based preset settings C one-button tests with pass/fail limit per j.83/a (dvb-c), j.83/b (docsis ds), and j.83/c (isdb-c) standards C hardkey/softkey manual user inter - face or scpi remote control C built-in, context-sensitive help C transportable license between x-series signal analyzers digital cable tv measurement application
3 the digital cable tv measurement application includes three standards of digital video broadcasting over cable: dvb-c (j.83 annex a), j.83 annex b, and j.83 annex c. dvb-c (j.83 annex a) dvb-c is the dvb european con - sortium standard for the broadcast transmission of digital television over cable, mainly used in europe and asia with 8 mhz bandwidth. j.83 annex b (docsis ds) j.83/b, widely used in north america as digital television over cable and the same as the docsis ds physical layer, has a greater difference in fec coding and occupies a bandwidth of 6 mhz. j.83 annex c (isdb-c) j.83/c, mainly used in japan as digital television over cable and also called isdb-c, has identical structure as dvb-c, except for the channel band - width (6 mhz for j.83/c and 8?mhz for dvb-c) and roll-off factor of the baseband filter. table 1. key parameters in digital cable tv standards j.83 annex a (dvb-c) j.83 annex b (dossis ds) j.83 annex c (isdb-c) frequency vhf, uhf vhf, uhf vhf, uhf bandwidth 8 mhz 6 mhz 6 mhz modulation 16qam, 32qam, 64qam, 128qam, 256qam 64qam, 256qam, 1024qam 16qam, 32qam, 64qam, 128qam, 256qam randomization polynomial for prbs 1 + x 14 + x 15 polynomial for prbs 3-word polynomial for prbs x 3 + x + 3 over gf (128), where 7 + 3 +1 = 0 polynomial for prbs 1 + x 14 + x 15 fec rs (204,188) over gf (256) rs (128,122) over gf (128) concatenated with convolutional coding rs (204,188) over gf (256) trellis coding no yes no interleaving convolutional interleaving, depth: i = 12 convolutional interleaving, depth: i = 128, 64, 32,16, 8 j = 1, 2, 3, 4, 5, 6, 7, 8, 16 convolutional interleaving, depth: i = 12 roll-off factor 0.15 0.18 for 64qam, 0.12 for 256qam, 1024qam 0.13 stream mpeg-2 ts modifed mpeg-2 ts, with the sync byte replaced by a parity checksum mpeg-2 ts digital cable tv standards overview
4 rf transmitter tests standard-based rf transmitter tests the rf transmitter test requirements for dvb-c is defined in the etsi tr 101 290 standard. table 2 shows the required base station rf transmitter tests along with the corresponding measurement applications. table 2. required rf transmitter measurements and the corresponding measurements in n/w6152a etsi tr101 290 v.1.2.1 paragraph number transmitter test x-series n/w6152a measurement application 6.1 system availability n/a 6.2 link availability n/a 6.3 ber before rs decoder modulation accuracy (ber view) 6.3.1 ber - out of - service modulation accuracy (ber view) 6.3.2 ber - in - service modulation accuracy (ber view) 6.4 error events logging n/a 6.5 transmitter symbol clock jitter and accuracy n/a 6.6 rf/if signal power channel power measurement 6.7 noise power spectrum analyzer mode 6.8 bit error count after rs modulation accuracy (ber view) 6.9.1 i/q analysis defnition n/a 6.9.2 modulation error ratio modulation accuracy (result metrics view) 6.9.3 system target error n/a 6.9.4 carrier suppression modulation accuracy (result metrics view) 6.9.5 amplitude imbalance modulation accuracy (result metrics view) 6.9.6 quadrature error modulation accuracy (result metrics view) 6.9.7 residual target error n/a 6.9.8 coherent interferer n/a 6.9.9 phase jitter n/a 6.9.10 signal-to-noise ratio (snr) modulation accuracy (result metrics view) 6.10 interference spectrum analyzer mode 7.1 noise margin modulation accuracy (ber view) 7.2 estimated noise margin modulation accuracy (ber view) 7.3 signal quality margin test modulation accuracy (ber view) 7.4 equivalent noise degradation (end) modulation accuracy (ber view) 7.5 ber vs. eb/n0 modulation accuracy (ber view) 7.6 phase noise of rf carrier phase noise mode 7.7 amplitude, phase, and impulse response of the channel modulation accuracy (channel frequency response) 7.8 out - of - band emissions spectrum emission mask measurement
5 measurement details all of the rf transmitter measure - ments as defined by the digital cable tv standard, as well as a wide range of additional measurements and analy - sis tools, are available with a press of a button (table 3). these measure - ments are fully remote controllable via the iec/ieee bus or lan using scpi commands. analog baseband measurements are available on the pxa or mxa signal analyzer equipped with bbiq hardware supported baseband measurements include all of the modulation quality plus i/q waveform measurements. table 3. one-button measurements provided by the n/w6152a measurement application technology dvb-c (j.83 annex a/c) j.83 annex b (docsis ds) measurements N6152A-2fp, w6152a-2fp N6152A-3fp, w6152a-3fp adjacent channel power spectrum emission mask power statistic ccdf modulation accuracy rms evm (%) peak evm (%) position of peak evm rms mer (db) peak mer (db) position of peak mer rms mag error (%) peak mag error (%) position of peak mag error rms phase error (deg) peak phase error (deg) position of peak phase error iq offset (db) frequency error (hz) clock error tx power (dbm) quadrature error (deg) amplitude imbalance (%) evm vs. symbols (%) mag error vs. symbols (db) phase error vs. symbols (deg) amplitude vs. frequency (db) phase vs. frequency (deg) group delay vs. frequency (ns) channel impulse response (db) ber results
6 figure 2. dvb-c constellation and mer results figure 3. dvb-c iq quad view figure 4. dvb-c result metrics view
7 figure 5. dvb-c channel power figure 6. dvb-c channel impulse response view figure 6. dvb-c ber view
8 key specifcations defnitions C specifications describe the performance of parameters covered by the product warranty. C 95th percentile values indicate the breadth of the population (2) of performance tolerances expected to be met in 95% of cases with a 95% confidence. these values are not covered by the product warranty. C typical values are designated with the abbreviation "typ." these are performance beyond specification that 80% of the units exhibit with a 95% confidence. these values are not covered by the product warranty. C nominal values are designated with the abbreviation "nom." these values indicate expected performance, or describe product performance that is useful in the application of the product, but is not covered by the product warranty. C pxa specifications apply to analyzers with frequency options of 526 and lower. for analyzers with higher frequency options, specifications are not warranted but performance will nominally be close to that shown in this section. note: data subject to change for a complete list of specifications refer to the appropriate specifications guide. pxa: www.keysight.com/find/pxa_specifications mxa: www.keysight.com/find/mxa_specifications exa: www.keysight.com/find/exa_specifications cxa: www.keysight.com/find/cxa_specifications esciption hanne powe 8 mhz integration bw ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) absolute power accuracy 20 to 30 c 0.61 ( 0.19 db 95%) 0.82 ( 0.23 db 95%) 0.94 ( 0.27 db 95%) 1.33 ( 0.61 db 95%) measurement foor ?85.7 dbm (typ) ?82.7 dbm (typ) ?78.7 dbm (typ) ?75.7 dbm (typ) power statistics ccdf minimum power at rf input ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) histogram resolution 0.01 db 0.01 db 0.01 db 0.01 db adjacent channel power minimum power at rf input; 0 to 55 c ?36 dbm (nom) ?36 dbm (nom) ?36 dbm (nom) ?36 dbm (nom) acpr accuracy 8.0 mhz noise bandwidth, method = ibw offset frequency 8 mhz 0.21 db 0.46 db 0.98 db 1.43 db you can upgrade! options can be added after your initial purchase. all of our x-series application options are license-key upgradeable.
9 description pxa (n9030a) mxa (n9020a) exa (n9010a) cxa (n9000a) spectrum emission mask 6.9 mhz integration bw, rbw = 3.9 khz 4.2 mhz offset dynamic range, relative sensitivity, absolute 97.8 (102.7 typ) 92.1 (98.5 db typ) 86.9 db (94.0 db typ) 84.5 db (91.7 db typ) ?114.5 (?118.5 dbm typ) ?110.5 (?115.5 dbm typ) ?105.5 (?111.5 dbm typ) ?102.5 (?108.5 dbm typ) accuracy relative absolute, 20 C 30 c 0.10 db 0.18 db 0.18 db 0.27 db 0.62 ( 0.20 db 95%) 0 . 88 db ( 0.23 db 95%) 1.05 db ( 0.31 db 95%) 1.53 db ( 0.64 db 95%) 10.0 mhz offset dynamic range, relative 101.9 (106.8 db typ) 96.1 (101.8 db typ) 90.8 (97.1 db typ) 88.7 (96.3 db typ) sensitivity, absolute ?114.5 (?118.5 dbm typ) ?110.5 (?115.5 dbm typ) ?105.5 (?111.5 dbm typ) ?102.5 (?108.5 dbm typ) accuracy relative absolute 0.12 db 0.22 db 0.22 db 0.37 db 0.62 ( 0.20 db 95%) 0.88 ( 0.23 db 95%) 1.05 db ( 0.31 db 95%) 1.53 db ( 0.64 db 95%) modulation accuracy dvb-c 64qam evm, symbol rate = 6.9 mhz, ml 1 = ?20 dbm, 20 to 30 c evm (smax) operating range floor 0 to 5% 0 to 5% 0 to 5% 0 to 5% (nom) 0.51% (adaptive eq off) 0.57% (adaptive eq off) 0.63% (adaptive eq off) 0.63% (adaptive eq off) (nom) mer operating range 22 db 22 db 22 db 22 db (nom) floor 43 db (adaptive eq off) 42 db (adaptive eq off) 41 db (adaptive eq off) 41 db (adaptive eq off) (nom) frequency error 2 range accuracy ?150 khz to 150 khz ?150 khz to 150 khz ?150 khz to 150 khz ?150 khz to 150 khz 10 hz + tfa 3 10 hz + tfa 3 10 hz + tfa 3 10 hz + tfa 3 quad error range ?5 deg to 5 deg ?5 deg to 5 deg ?5 deg to 5 deg ?5 deg to 5 deg (nom) gain imbalance range ?1 to +1 db ?1 to +1 db ?1 to +1 db ?1 to +1 db (nom) ber before rs for dvb-c (j.83 annex a/c) and j.83/b (docsis ds) range 0 to 1.0 x 10 ?1 0 to 1.0 x 10 ?1 0 to 1.0 x 10 ?1 0 to 1.0 x 10 ?1 (nom) ber after rs for dvb-c (j.83 annex a/c) and j.83/b (docsis ds) range 0 to 1.0 x 10 ?3 0 to 1.0 x 10 ?3 0 to 1.0 x 10 ?3 0 to 1.0 x 10 ?3 (nom) packet error ratio for dvb-c(j.83 annex a/c) and j.83/b (docsis ds) range 0 to 1.0 0 to 1.0 0 to 1.0 0 to 1.0 (nom) clock error increasing symbol length to more than 5000 can signifcantly improve the clock error accuracy 1. ml (mixer level) is rf input power minus attenuation 2. the accuracy specifcation applies at the evm = 1%s 3. tfa = transmitter frequency frequency reference accuracy
10 ordering information software licensing and confguration choose from two license types: C fixed, perpetual license: this allows you to run the applica - tion in the x-series analyzer in which it is initially installed. C transportable, perpetual license: this allows you to run the applica - tion in the x-series analyzer in which it is initially installed, plus it may be transferred from one x-series analyzer to another. the table below contains information on our fixed, perpetual licenses. for more information, please visit the product web pages. N6152A & w6152a digital cable tv x-series measurement application description model-option additional information pxa, mxa, exa cxa dvb-c (j.83 annex a/c) N6152A-2fp w6152a-2fp j.83 annex b N6152A-3fp w6152a-3fp latest enhancements N6152A-meu w6152a-meu try before you buy! free 30-day trials of x-series measurement applications provide unrestricted use of each application's features and functionality on your x-series analyzer. redeem a trial license on-line today: www.keysight.com/fnd/x-series_trial x-series measurement application updates to update a previously purchased N6152A/w6152a measurement application to include the latest feature updates, you can purchase the N6152A-meu or w6152a-meu minor enhancement update. for more information, visit: www.keysight.com/fnd/N6152A-meu for pxa, mxa
11 hardware confguration n9030a pxa signal analyzer description model-option additional information 3.6, 8.4, 13.6, 26.5, 43, 44, or 50 ghz frequency range n9030a-503, -508, -513, -526, -543, -544, or -550 one required analog baseband iq (bbiq) inputs n9030a-bba required for analog baseband measurement precision frequency reference n9030a-pfr recommended electronic attenuator, 3.6 ghz n9030a-ea3 recommended preamplifer, 3.6, 8.4, 13.6, 26.5, 42.98, 44, or 50 ghz n9030a-p03, -p08, -p13, -p26, -p43, -p44, or p50 one recommended analysis bandwidth to 25, 40, or 160 mhz n9030a-b25, -b40, or - b1x one optional wideband if output n9030a-cr3 optional programmable if output n9030a-crp optional n9020a mxa signal analyzer description model-option additional information 3.6, 8.4, 13.6, or 26.5 ghz frequency range n9020a-503, -508, -513, or -526 one required analog baseband iq (bbiq) inputs n9020a-bba required for analog baseband measurement precision frequency reference n9020a-pfr recommended electronic attenuator, 3.6 ghz n9020a-ea3 recommended preamplifer, 3.6, 8.4, 13.6, or 26.5 ghz n9020a-p03, -p08, -p13, or -p26 one recommended analysis bandwidth to 25 or 40 mhz n9020a-b25 or -b40 one optional wideband if output n9020a-cr3 optional programmable if output n9020a -crp optional dual-core, high-performance processor, removable ssd n9020a-pc4 recommended for faster ber n9010a exa signal analyzer description model-option additional information 3.6, 7.0, 13.6, or 26.5 ghz frequency range n9020a-503, -508, -513, or -526 one required precision frequency reference n9010a-pfr recommended electronic attenuator, 3.6 ghz n9010a-ea3 one recommended preamplifer , 3.6 or 7.0 ghz n9010a-p03, -p07 recommended analysis bandwidth to 25 or 40 mhz n9010a-b25 or -b40 one optional wideband if output n9010a -cr3 optional programmable if output n9010a-crp optional dual-core, high-performance processor, removable ssd n9010a-pc4 recommended for faster ber n9000a cxa signal analyzer description model-option additional information 3.0, 7.5, 13.6, or 26.5 ghz frequency range n9000a-503, -507, -513, or -526 one required precision frequency reference n9000a-pfr recommended fine step attenuator n9000a-fsa recommended preamplifer, 3.0, 7.5, 13.6, or 26.5 ghz n9000a-p03, -p07, -p13, or -p26 one recommended analysis bandwidth to 25 mhz n9000a-b25 optional wideband if output n9000a-cr3 optional tracking generator, 9 khz to 3 ghz or 6 ghz n9000a-t03 or t06 one optional
this information is subject to change without notice. ? keysight technologies, 2013 - 2014 published in usa, august 3, 2014 5990-6791en www.keysight.com 12 | keysight | digital cable tv x-series measurement application N6152A & w6152a C technical overview for more information on keysight technologies products, applications or services, please contact your local keysight office. the complete list is available at: www.keysight.com/find/contactus americas canada (877) 894 4414 brazil 55 11 3351 7010 mexico 001 800 254 2440 united states (800) 829 4444 asia pacifc australia 1 800 629 485 china 800 810 0189 hong kong 800 938 693 india 1 800 112 929 japan 0120 (421) 345 korea 080 769 0800 malaysia 1 800 888 848 singapore 1 800 375 8100 taiwan 0800 047 866 other ap countries (65) 6375 8100 europe & middle east austria 0800 001122 belgium 0800 58580 finland 0800 523252 france 0805 980333 germany 0800 6270999 ireland 1800 832700 israel 1 809 343051 italy 800 599100 luxembourg +32 800 58580 netherlands 0800 0233200 russia 8800 5009286 spain 800 000154 sweden 0200 882255 switzerland 0800 805353 opt. 1 (de) opt. 2 (fr) opt. 3 (it) united kingdom 0800 0260637 for other unlisted countries: www.keysight.com/find/contactus (bp-09-23-14) mykeysight www.keysight.com/find/mykeysight a personalized view into the information most relevant to you. www.lxistandard.org lan extensions for instruments puts the power of ethernet and the web inside your test systems. keysight is a founding member of the lxi consortium. three-year warranty www.keysight.com/find/threeyearwarranty keysights commitment to superior product quality and lower total cost of ownership. the only test and measurement company with three-year warranty standard on all instruments, worldwide. keysight assurance plans www.keysight.com/find/assuranceplans up to five years of protection and no budgetary surprises to ensure your instruments are operating to specification so you can rely on accurate measurements. www.keysight.com/go/quality keysight technologies, inc. dekra certified iso 9001:2008 quality management system keysight channel partners www.keysight.com/find/channelpartners get the best of both worlds: keysights measurement expertise and product breadth, combined with channel partner convenience. related literature N6152A & w6152a digital cable tv measurement application, self-guided demonstration, literature number 5990-6792en N6152A & w6152a digital cable tv measurement application, measurement guide, part number n6152-90002 N6152A & w6152a digital cable tv measurement application, user's and programmer's reference, part number n6152-90001 web product page: www.keysight.com/find/N6152A and www.keysight.com/find/w6152a x-series measurement applications: www.keysight.com/find/x-series_apps x-series signal analyzers: www.keysight.com/find/x-series application pages: www.keysight.com/find/digitalvideo digital video solution table: www.keysight.com/find/digitalvideo_solution

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