Si2144 Worldwide Digital Set-Top Box Tuner Description Features The Si2144 is the industry's most advanced digital Set-Top Box (STB) tuner supporting all worldwide cable and terrestrial TV standards for digital TV reception. Like the previous generations of Silicon Labs' digital TV tuners, the Si2144 maintains very high linearity and low phase noise to deliver superior picture quality compared to competing silicon tuners. Available in an industry-leading 3x3 mm QFN package, the Si2144 delivers the lowest-cost, most design-friendly and area-efficient digital STB solution available today. A fully-integrated RF front-end eliminates the need for an external balun, LNAs, SAW filters, and inductive power supply filtering. Also included is a fully-integrated loop-through function with a zero-power mode switch (ZPS) for additional board area and BOM savings. An on-chip 1.8 V LDO enables single-supply operation, while a dual-supply option offers additional system flexibility. The Si2144’s excellent immunity to LTE interference and harmonic rejection mixer with outstanding immunity to Wi-Fi interference eliminate the need for external filtering. For advanced digital broadcast standards with high-order constellations, such as DVB-T2 and DVB-C2, the Si2144's superior integrated phase noise delivers industry-leading reception performance. The Si2144 delivers a higher number of received stations compared to other silicon tuners. Incorporating worldwide field experience from prior generations of digital tuners in mass production, the Si2144 delivers the highest tolerance to real-world reception conditions. - Worldwide digital STB tuner - ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB - 1.7 MHz, 6 MHz, 7 MHz, 8 MHz, and 10 MHz channel bandwidths - Conforms to NorDig, DTG, and ARIB - Lowest BOM for a silicon digital Set Top Box tuner - No balun, SAW filters, or wire-wound inductors - Integrated loop-through with zero-power mode - Integrated LNAs and complete tracking filters - Best-in-class real-world reception - 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 - Integrated 1.8 V LDO for 3.3 V single-supply operation - Single Low-IF (LIF) output to SoC and/or demodulator - Standard CMOS process technology - Smallest footprint for a silicon digital TV tuner - 3x3 mm, RoHS-compliant 24-pin QFN Applications - Digital tuner modules - Digital cable and terrestrial STB - Digital PVR, DVD and Blu-Ray disc recorder ZPS I ADC PGA ANTENNA INPUT Q ADC PGA RF AGC 0 / 90 LDO FREQ SYNTH IF AGC DSP FILTER LOW-IF 3.3 V 1.8 V 1.8 V XOSC Copyright © 2015 by Silicon Laboratories AGC LIF DTV DEMOD SDA SCL ADDR AV SoC GPIO XOUT XTAL_I XTAL_O Digital Set Top Box Tuner CONTROL INTERFACE RF OUT OUTPUT INTERFACE Si2144 LOOP THROUGH 2.26.2015 Si2144 Worldwide Digital Set-Top Box Tuner Selected Electrical Specifications (VDDH = 3.3 V, VDDL = 1.8 V, TA = 25 °C) Parameter Supply voltage Total Power Consumption RF Input Frequency Range NF, cable mode Test Condition Typ 1.8 and 3.3, or only 3.3 486 42 to 870 4.8 2.8 3.5 4.8 8 Unit V mW MHz dB dB dB dB dB Composite Triple Beat –56 dBc Composite Second Order –68 dBc External 1.8 V supply, LT disabled VHF-L1 (42–106 MHz) VHF-L2 (107–247 MHz) VHF-H (248–470 MHz) UHF (471–870 MHz) Cable mode Input Return Loss* LO Phase Noise at 860 MHz LO Integrated Phase Noise at 860 MHz 1 kHz | 10 kHz | 100 kHz | 1 MHz DSB: 125 Hz to 4 MHz –100 | –100 | –105 | –132 0.25 (–47) LIF Output Center Frequency Channel BW = 6 MHz | 7 MHz | 8 MHz 4 to 7 | 4.5 to 6.5 | 5 to 6 LIF Differential Output Voltage Programmable 0.5 to 2.0 Loop-Through Output (China DVB-C Mode) RF Frequency Range (LT only) 42 to 870 MHz 8 7.1 dB dB LT Output Return Loss (Active) LT Noise Figure (Active) dBc/Hz °rms (dBc) MHz Vppd Max gain LT Gain Active mode 2.9 Zero-power mode –2.2 *Note: Includes all connector, PCB and front-end circuit losses at the F-connector input of the Si2144 EVB. dB dB Selection Guide Part # Description Si2144 Worldwide digital Set Top Box tuner for ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB VDDH GND VDDH XTAL_O XTAL_I RF_REF 19 3x3 mm QFN-24 Package Information RF_OUT Pin Assignments 18 17 16 15 14 13 RF_IP 20 12 XOUT GND 21 11 LIF_P GND PAD RF_IN 22 10 LIF_N ADDR 23 9 VDDH GPIO1 24 8 GND 6 GND 5 AGC1 4 AGC2 3 SCL SDA GPIO2 1 2 7 VDDL Dimension Min A 0.80 Max 0.85 0.90 Unit mm D, E 3.00 BSC mm e 0.40 BSC mm e1 J, K Digital Set Top Box Tuner Nom 0.45 BSC 1.60 Copyright © 2015 by Silicon Laboratories 1.70 mm 1.80 mm 2.26.2015 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