Si2176 Worldwide Hybrid TV Tuner IC with Analog Demodulator Description Features The Si2176 integrates a complete hybrid tuner with - Worldwide hybrid TV tuner analog TV demodulator supporting all worldwide - Analog TV: NTSC, PAL/SECAM terrestrial and cable TV standards. Leveraging - Digital TV: ATSC/QAM, DVB-T/T2/C, ISDB-T/C, Silicon Labs’ field proven digital low-IF architecture, DTMB the Si2176 maintains the unmatched performance - 42–1002 MHz frequency range and design simplicity of the Si2173 while further - Compliance to A/74, NorDig, D-Book, C-Book, reducing footprint size and bill of materials cost. No ARIB, EN55020, OpenCable™ specifications external LNAs, tracking filters, wirewound inductors - Best-in-class real-world reception or SAW filters are used. - Exceeds discrete MOPLL-based tuners - Highly integrated, lowest BOM Compared with competing silicon tuners and discrete - No SAW filters or wirewound inductors required MOPLL-based tuners, the Si2176 delivers superior - Integrated LNAs and complete tracking filters picture quality and a higher number of received - No alignment, tuning or calibration required stations in crowded and near/far real-world reception - Digital low-IF architecture conditions. The high linearity and low noise RF - Integrated channel select filters front-end delivers superior blocking performance and - Analog TV demodulator higher sensitivity in the presence of strong undesired - Superior video SNR performance channels and interference. - Overmodulation and ICPM tolerant The Si2176 integrates the complete signal path from - Customizable ATV and DTV channel filters antenna input to IF incorporating Silicon Labs' third - Flexible output interface generation field-proven analog demodulator to - CVBS + SIF/AF to audio/video processor or SoC provide analog video and sound outputs. Compared - DLIF to digital TV demodulator or SoC to traditional discrete MOPLL-based tuners, the - 3.3 and 1.8 V power supplies Si2176 eliminates hundreds of external components - Standard CMOS process technology including external LNAs, tracking filter varactors and - 5 x 5 mm, 32-pin QFN package inductors (unlike competing silicon tuners), and SAW - RoHS compliant filters, resulting in the simplest, lowest-cost BOM for a hybrid TV tuner. Applications Interfacing the Si2176 seamlessly with the Si2165 - Hybrid ½-NIM, ¾-NIM and full-NIM DVB-T/C demodulator creates a complete terrestrial - iDTV (Integrated Digital TV) and cable hybrid PAL/SECAM and DVB-T/C receiver. - Digital terrestrial and cable STB - Hybrid PVR and DVD recorder Si2176 AGC ANTENNA I DSP DTV INPUT PGA DSP RF_IP ADC DLIF DEMOD FILTER Balun RF_IN FILTER CVBS Q ATV OUTPUT PGA ATV INTERFACE ADC DEMOD SIF/AF RSTB RF IF AV 0 / 90 LOW-IF INTB AGC AGC SoC SDA 1.8 V SCL FREQ CONTROL 3.3 V LDO XOSC INTERFACE SYNTH ADDR XTAL_O XTAL_I XOUT BCLK GPIO Worldwide Hybrid TV Tuner Copyright © 2011 by Silicon Laboratories 9.20.11 Si2176 Worldwide Hybrid TV Tuner with Analog Demodulator 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 Supply Voltage 1.8 and 3.3 V Total Power Consumption VHF bands | UHF bands 0.98 | 0.87 W RF Input Frequency Range 42 to 1002 MHz Noise Figure* max gain 4.0 dB Wideband IIP3* N±18,±36; max RF gain +18 dBm Inband IIP3* N±1,±2; max RF gain –7 dBm LO Phase Noise at 860 MHz 125 Hz | 250 Hz | 1 kHz | 10 kHz | 100 kHz –83 | –91 | –96 | –95 | –104 dBc/Hz LO Integrated Phase Noise 0.4 deg. rms DSB: 125 Hz to 4 MHz at 860 MHz (–43) (dBc) Adjacent Channel Attenuation N±1; RF input* to DLIF output 80 dB ATV Receiver Sensitivity 30 dB video SNR; M/N | B/G, D/K | I | L/L’ –67.5 | –67 | –66 | –68 dBm ATV Receiver Unweighted Video SNR +1 dBm input level; M/N | B/G, D/K | I | L/L’ 55.5 | 55 | 53.5 | 56.5 dB 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 Swing programmable 0.5 to 2.0 Vppd *Note: Measured at the F-connector input of the Si2176 reference design and includes all connector, PCB, and front-end circuit losses. Pin Assignments 5 x 5 mm QFN-32 Package RF_SHLD RF_IP RF_IN RF_SHLD VDD_H VDD_H XTAL_I XTAL_O 24 23 22 21 20 19 18 17 GND 25 16 XOUT GND 26 15 BCLK GND 27 14 VDD_L GPIO1 28 13 DLIF_P GND_PAD INTB/GPIO2 29 12 DLIF_N RSTB 30 11 CVBS GND 31 10 VDD_H VDD_IO 32 9 SIF/AF 1 2 3 4 5 6 7 8 Symbol Min Nom Max Unit NC A 0.80 0.85 0.90 mm SCL SDA GND ADDR VDD_S VDD_D D, E 5.00 BSC mm DLIF_AGC e 0.50 BSC mm Selection Guide Part # Description Worldwide hybrid TV tuner IC with analog demodulator for NTSC, PAL/SECAM, ATSC/QAM, Si2176 DVB-T/T2/C, ISDB-T/C, DTMB Worldwide Hybrid TV Tuner Copyright © 2011 by Silicon Laboratories 9.20.11 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. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Silicon Laboratories: Si2176-B30-GMR Si2176-B30-GM Si2176-B-EVB.