SI2168-A20-GM

Si2168-A20 New Generation DVB-T2/T/C Digital TV Demodulator Description Features The Si2168 integrates DVB-T2, DVB-T, and DVB-C digital demodulators into a single advanced CMOS technology mixed-signal die for next generation terrestrial and legacy cable TV standards. Leveraging Silicon Labs' proven digital demodulation architecture, the Si2168 achieves excellent reception performance while significantly minimizing front-end design complexity, cost, and power dissipation. Connecting the Si2168 to a terrestrial and cable hybrid TV tuner or digital only tuner, such as Silicon Labs’ Si2176/56/ 46 devices, results in a high performance and cost optimized TV front-end solution. Silicon Labs internally developed DVB-T2 demodulator can accept a standard IF (36 MHz) or low-IF input and support all modes specified by the DVB-T2 standard. Main features of the DVB-T2 mode are 256 QAM with rotated constellations, SISO and MISO support, FEF management, fully autonomous signal acquisition including automatic L1 signalling parsing, 600 kHz acquisition range, support for all pilot patterns, and DVB-T/T2 auto-detection. The DVB-T and DVB-C demodulators are enhanced versions of proven and broadly used Si2161/63/65/67 Silicon Labs devices. The Si2168 offers an on-chip blind scanning algorithm for the DVB-C standards as well as blind lock. The Si2168 can use a crystal, as a reference clock, or be driven by an external clock signal from the tuner. The Si2168 programmable transport stream interface provides a flexible range of output modes and is fully compatible with all MPEG decoders or conditional access modules to support any customer application. - DVB-T2 (ETSI EN 302 755) - COFDM demodulator and FEC (LDPC + BCH) decoder - Bandwidth: 1.7, 5, 6, 7 or 8 MHz (and extended BW) - Supports up to 255 PLP(s) and outputs the data PLP plus the common PLP on a single TS - NorDig-T2 Unified v2.2.1 and D-Book 7.0 compliant - Firmware control (loaded in ROM) - DVB-T (ETSI EN 300 744) - COFDM demodulator and FEC decoder - NorDig Unified 2.2.1, D-Book 7.0 compliant - DVB-C (ETSI EN 300 429) / ITU J.83 Annex A/C - QAM demodulator and FEC decoder - 1 to 7.2 MSymbol/s - C-Book compliant - I2C serial bus interfaces (master and host) - GPIOs and multi-purpose ports for independent AGCs - Firmware control for upgradeability - Flexible TS interface with serial or parallel single output - Fast lock times for all standards including DVB-T2 - Only two power supplies: 1.2 and 3.3 V - Pin-to-pin and software compatibility with the Si2169 (superset for DVB-T2/T/C/S/S2) - 7x7 mm, QFN-48 pin package, Pb-free/RoHS compliant Applications iDTV: on-board or in a NIM Advanced STB PC-TV accessories PVR, DVD, and Blu-Ray disc recorders 1.2, 3.3V DSP & SYNCHRO ADC OSC & PLL TUN_SDA TUN_SCL Digital Demodulator EQUALIZER DVB-T2/T DEMOD EQUALIZER FRONT END Ext. Clk or Xtal CLK_IN_OUT DVB-C DEMOD TS_SYNC RS VITERBI LDPC BCH TS_VAL TS_CLK TS_DATA 8 DVB-T2/T/C FEC MODULE HDTV MPEG S.o.C. TS_ERR/ GPIO_1 AGCs TC_ADC_P TC_ADC_N GPIO INTERFACE Silicon Labs TV Tuner (Si217x/5x/4x) CTRL MPEG TS MP_A/_B/_C/_D RESETB GPIO_0 - Si2168 I2C SWITCH Copyright © 2012 by Silicon Laboratories I2C I/F HOST_SDA HOST_SCL 6.8.2012 Si2168-A20 New Generation DVB-T2/T/C Digital TV Demodulator Selected Electrical Specifications (TA = –10 to 75 °C) Parameter Test Condition Min Typ Max Unit 4 — 30 MHz 16 — 30 MHz — 420 — mW 2 — 190 — mW 3 General Input clock reference Supported XTAL frequency DVB-T21 Total power consumption DVB-T DVB-C — 180 — mW 2 layer PCB — 35 — °C/W 4 layer PCB — 23 — °C/W 36 MHz IF/low-IF — 56 65 MHz VDD_VCORE 1.14 1.20 1.30 V VDD_VANA 3.00 3.30 3.60 V VDD_VIO 3.00 3.30 3.60 V Thermal resistance (JA) Input ADC Sampling Clock DVB-T2/T/C Power Supplies Notes: 1. Highest power demodulation case: 8 MHz, 256 QAM, 32K FFT, CR=3/5, GI=1/128, PP7, C/N at picture failure. 2. Highest power demodulation case: 8 MHz, 64QAM, IF Mode, 8K, Parallel TS Output. 3. Highest power demodulation case: 6.9 Mbaud, 256 QAM, IF Mode, Parallel TS Output. 30 29 28 TS_DATA[7] 31 GND 32 TS_ERR/GPIO_1 XTAL_O 33 VDD_VCORE XTAL_I/CLK_IN 34 MP_C ADDR 35 RESETB GND 36 MP_D VDD_VANA Pin Assignments (Pin-to-Pin Compatible with the Si2167 and Si2169) 27 26 25 NC 37 24 TS_DATA[6] NC 38 23 TS_DATA[5] 22 VDD_VIO NC 39 Si2168 NC 40 TC_ADC_P 41 21 GND 20 VDD_VCORE (GND_PAD) TC_ADC_N 42 NC 43 19 TS_DATA[4] 18 TS_DATA[3] QFN-48 7x7mm CLK_IN_OUT 44 SDA_MAST 45 17 TS_DATA[2] 16 TS_DATA[1] 15 TS_DATA[0]/TS_SER SCL_MAST 46 GND 47 14 TS_CLK VDD_VCORE 48 6 7 MP_A GPIO_0 NC RSVD NC VDD_VCORE 8 9 10 11 12 TS_VAL 5 SDA_HOST 4 SCL_HOST 3 GND 2 VDD_VIO 1 MP_B 13 TS_SYNC Selection Guide Part # Description Si2168-A20-GM/R Terrestrial and Cable Digital TV Demodulator for DVB-T2/T/C, 7x7 mm QFN-48 Digital Demodulator Copyright © 2012 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. 6.8.2012