Si2178 Worldwide Digital and Analog TV Tuner with Analog Demodulator Description Features The Si2178 integrates a PAL/SECAM/NTSC analog TV demodulator with a universal hybrid TV tuner supporting all worldwide digital and analog TV standards. The Si2178 requires no external balun and offers the lowest-cost BOM for a hybrid TV tuner with analog demodulator. By combining Silicon Labs' proven digital low-IF architecture with a 4th-generation RF front-end, the Si2178 maintains the highest performance that exceeds MOPLL-based tuners, including industry-leading 2nd-order distortion performance. - Worldwide hybrid TV tuner - Analog TV: NTSC, PAL/SECAM - Digital TV: ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB - 42–1002 MHz frequency range - Analog TV demodulator - Superior video SNR performance - Overmodulation and ICPM tolerant - Industry-leading margin to A/74, NorDig, D-Book, Compared with competing silicon TV tuners, the Si2178 delivers an unprecedented level of front-end integration, resulting in the lowest number of external BOM components. No external tracking filters, wire-wound inductors, LNAs, SAW filters or inductive power supply filtering components are needed. The Si2178 offers low power consumption as well as an option for single or dual power supply operation. Also included is an internal power-on reset circuit, eliminating the need for external brownout protection components or additional pins in module applications. - - - For next-generation digital TV broadcast standards, such as DVB-T2 and DVB-C2, that are sensitive to integrated phase noise, the Si2178 offers industry-leading phase noise performance. A software-selectable cable mode is also included which offers high return-loss performance. - As with prior-generation Silicon Labs TV tuners, the Si2178 delivers superior picture quality and a higher number of received stations when compared to other silicon tuners and discrete MOPLL-based tuners. Both the tuner and analog demodulator incorporate worldwide field testing experience from three previous generations in high-volume production, to deliver the highest tolerance to real-world field reception conditions. The Si2178 also incorporates a harmonic-rejection mixer that delivers excellent immunity to Wi-Fi and LTE interference across the full RF input frequency range, with no need for external filtering components. I ADC PGA Q ADC PGA RF AGC 0 / 90 - LDO FREQ SYNTH FILTER FILTER ATV DEMOD LOW-IF XOSC AGC DLIF DTV DEMOD CVBS SIF AV SoC SDA SCL ADDR GPIO XOUT XTAL_I XTAL_O Hybrid TV Tuner DSP DSP RSTB IF AGC 3.3 V 1.8 V 1/2-NIM, 3/4-NIM, and full-NIM tuner module iDTV (Integrated Digital TV) Hybrid terrestrial and cable STB Hybrid PVR, DVD and Blu-Ray disc recorder PC-TV accessories OUTPUT INTERFACE Si2178 Applications CONTROL INTERFACE ANTENNA INPUT - C-Book, ARIB, EN55020, OpenCable™ specifications Lowest BOM for a silicon hybrid TV tuner - No balun at RF input - No external 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 Flexible output interface - Combined ALIF/DLIF output to SoC - Optional DLIF output to external demodulator Standard CMOS process technology 4x4 mm, 28-pin QFN package RoHS compliant Copyright © 2012 by Silicon Laboratories 6.25.2012 Si2178 Worldwide Digital and Analog TV Tuner with Analog Demodulator Application Example: Integrated Digital TV (iDTV) Selection Guide Part # Description Si2178 Worldwide hybrid TV tuner with analog demodulator for NTSC, PAL/SECAM, ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB 4x4 mm QFN-28 Package Information Pin Assignments A VDD_H GND XTAL_O XTAL_I XOUT LDO_ADJ RF_REF 22 VDD_H PIN#1 I .D. (LA SER M ARK) 21 20 19 18 17 16 15 RF_IP 23 14 VDD_L RF_IN 24 13 DLIF_P RF_SHLD 25 f C A B C SE ATI NG PLANE DE TAI L "A" 11 SIF AGC1 28 9 CVBS A 0.80 0.85 0.90 mm 1 2 3 4 5 6 7 GND Unit VDD_IO Max SDA Nom SCL Min AGC2 Symbol GPIO2 10 VDD_H GPIO1 RSTB 27 Hybrid TV Tuner 4X cx c eee e B 12 DLIF_N GND PAD ADDR 26 Pi n # 1 ID 8 VDD_D D, E 4.00 BSC mm e 0.50 BSC mm f 3.50 BSC mm Copyright © 2012 by Silicon Laboratories 6.25.2012 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