SI2185-A10-GM

Si2185 Hybrid DVB-T/C and Analog TV Receiver Description Features The Si2185 hybrid TV receiver integrates a complete hybrid tuner, a DVB-T/C digital demodulator, and an analog TV demodulator supporting all worldwide analog TV standards into a single, monolithic, CMOS mixed-signal IC. - Hybrid Analog and Digital TV tuner - 42–870 MHz frequency range - No alignment, tuning or calibration - Analog TV (ATV) demodulator - PAL/SECAM, NTSC - Digital TV (DTV) demodulator and FEC decoder - DVB-T (ETSI EN 300 744) - DVB-C (ETSI EN 300 429) - ITU J.83 Annex A/C - Supports all DVB-T modes - Supports DVB-C symbol rates from 1 to 7.2 MBaud - Advanced echo equalizer - Best-in-class real-world reception - Compliance with NorDig 2.1, D-Book, C-Book, EN55020 Leveraging Silicon Labs' proven 3rd-generation digital low-IF tuner architecture, the Si2185 delivers superior ATV picture quality and a higher number of received channels in real-world crowded spectrum conditions without the need for external LNAs, tracking filters, or SAW filters. An enhanced version of the proven DVB-T/C demodulator technology from Silicon Labs' Si2165 has been incorporated into the Si2185 to deliver superior performance under a wide variety of field conditions. Both the analog and digital demodulators use sophisticated on-chip algorithms to ensure optimal reception even under difficult transmission conditions. In addition, the Si2185 offers on-chip Blindscan and Blindlock scanning algorithms for DVB-C as well as DSP-assisted DVB-T fast channel scanning. specifications - Highly integrated, lowest BOM - No SAW filters required - Integrated LNAs and complete tracking filters - Customizable channel select filters - Flexible output interface to AV processor - CVBS + SIF/AF - Serial or parallel TS output - Single die in standard CMOS process - 3.3 and 1.8 V power supplies - 7x7 mm, 48-pin QFN package, RoHS compliant By combining hybrid tuner and demodulator functions in a single device, the Si2185 enables a full TV receiver solution in a very small PCB footprint and with minimal external components. The Si2185 contains an on-chip crystal oscillator and only requires the connection of a standard 24 MHz crystal or a reference clock. For dual-receiver applications, the primary Si2185 can provide a reference clock on its XOUT pin directly to the XTAL_I pin of the secondary Si2185, thus saving the cost of one crystal. The Si2185 programmable Transport Stream interface provides both serial and parallel modes and is fully compatible with all MPEG decoders and conditional access modules (CI/CI+) to support any customer application. Balun Si2170/1/2 Si2185 RF_IP RF_IN VDD_L, VDD_D (1.8 V) VDD_H, VDD_IO (3.3 V) VDD_S (3.3 or 5 V) PGA I ADC PGA Q ADC LNA RF AGC 0 / 90 DC/DC FREQ SYNTH IF AGC - iDTV (Integrated Digital TV) Hybrid PVR and DVD recorder Hybrid full-NIM Hybrid portable TV Hybrid PC-TV card and USB dongle Hybrid terrestrial or cable STB DSP DIGITAL FILTER FILTER ATV DEMOD LOW-IF CVBS SIF/AF ATV DEMOD DIGITAL I/Q DVB-T/C DEMOD EQUALIZER FEC DSP CONTROL INTERFACE XOSC OUTPUT INTERFACE ANTENNA INPUT Applications TS_SYNC TS_VAL TS_ERR TS_CLK TS_DATA [0..7] 8 A/V SoC SDA SCL INTB RSTB ADDR GPIO BCLK XOUT XTAL_I XTAL_O 24 MHz Hybrid TV Receiver Copyright © 2011 by Silicon Laboratories 09.06.11 Si2185 Hybrid DVB-T/C and Analog TV Receiver Selected Electrical Specifications (VDD_H = 3.3 V, VDD_L = 1.8 V, VDD_D = 1.8 V, TA = 25 °C) Parameter Test Condition Typ Unit 1.8 and 3.3 V 0.98 | 1.1 W 42 to 870 MHz Max gain 4.0 dB N±18,±36; max RF gain +18 dBm N±1,±2; max RF gain –5 dBm 125 Hz | 250 Hz | 1 kHz | 10 kHz | 100 kHz –83 | –91 | –96 | –95 | –104 dBc/Hz Integrated DSB: 125 Hz to 4 MHz 0.4 (–43) °rms (dBc) 80 dB Supply Voltage Total Power Consumption ATV Mode | DVB-T Mode RF Input Frequency Range Noise Figure1 Wideband IIP3 1 Inband IIP31 LO Phase Noise at 860 MHz Adjacent Channel Attenuation N±1; RF input1 to DLIF output ATV Sensitivity 30 dB video SNR; M/N | B/G, D/K | I | L/L’ –67.5 | –67 | –66 | –68 dBm ATV Unweighted Video SNR +1 dBm input level; M/N | B/G, D/K | I | L/L’ 55.5 | 55 | 53.5 | 56.5 dB 8K, 64-QAM, 2/3CR, Gaussian Channel –84 dBm 8K, 64-QAM, 2/3CR, Gaussian Channel 17 dB DVB-T Sensitivity2 DVB-T Carrier to Noise Ratio2 Notes: 1. Measured at the F-connector input of the Si2185 reference design and includes all front-end circuit losses. 2. Measured at Quasi Error Free conditions (BER = 2 x 10–4). Selection Guide Part # Description Si2185 Hybrid Digital and Analog TV Receiver for DVB-T/C, PAL/SECAM, NTSC XOUT BCLK VDD_L LIF_P LIF_N CVBS VDD_H SIF / AF LIF_AGC ADDR VDD_S SCL Pin Assignments 36 35 34 33 32 31 30 29 28 27 26 25 XTAL_O 37 7x7 mm QFN-48 Package Information 24 SDA XTAL_I / RCLK 38 23 TS_CLK VDD_H 39 22 TS_DATA0 / TS_SER GND 40 VDD_H 41 Si2185 21 TS_DATA1 GND_PAD 19 VDD_IO GND 42 20 TS_DATA2 RF_SHLD 43 18 GND QFN-48 7x7 mm RF_IN 44 RF_IP 45 17 TS_DATA3 16 TS_DATA4 RF_SHLD 46 15 TS_DATA5 GND 47 14 TS_DATA6 13 TS_DATA7 1 2 3 4 5 6 7 8 9 10 11 12 GND VDD_H GPIO1 INTB RSTB VDD_H GND VDD_IO TS_ERR / GPIO2 TS_SYNC TS_VAL VDD_D GND 48 Hybrid TV Receiver Symbol Min A D, E e 0.80 Nom Max Unit 0.85 0.90 7.00 BSC 0.50 BSC mm mm mm Copyright © 2011 by Silicon Laboratories Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. 09.06.11