digital tv tuner copyright ? 2012 by silicon laboratories 12.21.12 dsp filter atv demod i adc q adc 0 / 90 low-if freq synth rf agc ldo if agc output interface xosc xtal_i pga pga control interface xtal_o xout SI2147 antenna input gpio 3.3 v 1.8 v dsp filter agc dtv demod av soc rstb addr scl sda dlif SI2147 worldwide digital tv tuner description a universal digital tv tuner, the SI2147 supports digital reception for all worl dwide terrestrial and cable tv standards. by combin ing silicon laboratories? proven digital low-if architecture with a 5 th -generation rf front-end, the SI2147 maintains the highest performance that exceeds that of mopll-based tuners, including industry-leading 2 nd order distortion performance. pin- and api-compatibility to the previous generation minimize customers? development effort. the SI2147 delivers unprecedented integration with no external balun, tracking filters, lnas, saw filters, or inductive power supply filtering. while other solutions may also eliminate the balun, they suffer degradation in nf and 2 nd order distortion compromising reception. silicon laboratories? proprietary and field-proven architecture delivers not only an optimized bom but also world-class system performance. options for single or dual supply and internal power-on reset are included. a harmonic rejection mixer delivers outstanding immunity to wi-fi and lte interference, replacing the need for external filtering. for advanced digital terrestrial tv reception, dvb-t2 and dvb-c2 constellations demand outstanding phase noise specifications, and the SI2147 rises to the challenge, delivering industry-leading integrated phase noise. additionally, a software-selectable cable mode offers optimized return loss. the SI2147 delivers exceptional picture quality and a higher number of received stations when compared to other solutions. incorporating worldwide field experience from four prior tuner generations in mass production, the SI2147 delivers the highest tolerance to real-world reception conditions. features - worldwide digital tv tuner - atsc/qam, dvb-t2/t/c2/c, isdb-t/c, dtmb - industry-leading margin to a/74, nordig, d-book, c-book, arib, en55020, op encable? specifications - lowest bom for a silicon digital tv tuner - no balun - no saw filters or wire-wound inductors - integrated lnas and complete tracking filters - best-in-class real-world reception - exceeds discrete mopll-based tuners - industry-leading phase noise performance - high immunity to wi-fi and lte interference - low power consumption - 3.3 v and 1.8 v power supplies - single-supply option for 3.3 v-only operation - integrated power-on reset circuit - low-if output to soc or demodulator - standard cmos process technology - 4x4 mm, 28-pin qfn package - rohs compliant applications - digital ?-nim tuner module - idtv (integrated digital tv) - digital terrestrial and cable stb - digital pvr, dvd and blu-ray disc recorder - pc-tv accessories
digital tv tuner copyright ? 2012 by silicon laboratories 12.21.12 silicon laboratories and silicon labs are trademarks of silicon laboratories inc. other products or brandnames mentioned her ein are trademarks or registered tr ademarks of their respective holders SI2147 worldwide digital tv tuner selection guide selected electrical specifications (v dd_h =3.3 v, v dd_l =1.8 v, v dd_d =1.8 v, t a =25 ? c) parameter test condition typ unit supply voltage 1.8 and 3.3, or only 3.3 v total power consumption xout disabled 484 mw rf input frequency range 42 to 870 mhz nf, terrestrial* vhf-l 4.0 db vhf-h 3.7 db uhf 3.8 db return loss* terrestrial mode 3 db cable mode 9 db wideband iip3* vhf-h, n ? 18, ? 36 +5 dbm inband iip3* vhf-h, n ? 1, ? 2 ?6 dbm lo phase noise at 860 mhz 1 khz ? 10 khz ? 100 khz ? 1 mhz ?100 ? ?100 ? ?105 ? ?132 dbc/hz lo integrated phase noise at 860 mhz dsb: 125 hz to 4 mhz 0.25 (-47) ? rms (dbc) dlif output center frequency channel bw=6 mhz ? 7 mhz ? 8 mhz 4 to 7 ? 4.5 to 6.5 ? 5 to 6 mhz dlif differential output voltage programmable 0.5 to 2.0 vppd *note: measured at the f-connector input of the SI2147 evb and includes all connector, pcb, and front-end circuit losses. part # description SI2147 worldwide digital tv tuner for atsc/qam, dvb-t2/t/c2/c, isdb-t/c, dtmb pin assignments gnd pad 23 24 25 18 19 20 21 10 11 12 13 2 3 4 5 26 27 17 9 6 16 14 7 28 gnd vdd_io vdd_l dlif1_p dlif1_n dlif2_p rstb rf_ip addr sda scl vdd_h rf_in rf_shld xtal_o dlif2_n vdd_h vdd_h xtal_i agc1 gnd agc2 gpio2 xout 1 22 15 8 gpio1 vdd_d ldo_adj rf_ref 4x4 mm qfn-28 package information 4x cxc eee cab f a b c se ati ng plan e ddd cab de t ai l " a" pin#1 i.d. (l a ser m ar k) pi n # 1 id e symbol min nom max unit a 0.80 0.85 0.90 mm d, e 4.00 bsc mm e 0.50 bsc mm f 3.50 bsc mm
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