Si2157 Worldwide Digital and Analog TV Tuner Description Features A universal hybrid TV tuner, the Si2157 supports digital and analog reception for all worldwide terrestrial and cable TV standards. By combining Silicon Laboratories’ proven digital low-IF architecture with a 5th-generation RF front-end, the Si2157 maintains the highest performance that exceeds that of MOPLL-based tuners, including industry-leading 2nd order distortion performance. Pin- and API-compatibility to the previous generation minimize customers’ development effort. - Worldwide hybrid TV tuner - Analog TV: NTSC, PAL/SECAM - Digital TV: ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, The Si2157 delivers unprecedented integration with no external balun, tracking filters, LNAs, SAW filters, or inductive power supply filtering. While other solutions may also eliminate the balun, they suffer degradation in NF and 2nd order distortion compromising reception. Silicon Laboratories’ proprietary and field-proven architecture delivers not only an optimized BOM but also world-class system performance. Options for single or dual supply and internal power-on reset are included. A harmonic rejection mixer delivers outstanding immunity to Wi-Fi and LTE interference, replacing the need for external filtering. - DTMB - Industry-leading margin to A/74, NorDig, D-Book, - - - - For advanced digital terrestrial TV reception, DVB-T2 and DVB-C2 constellations demand outstanding phase noise specifications, and the Si2157 rises to the challenge, delivering industry-leading integrated phase noise. Additionally, a software-selectable cable mode offers optimized return loss. Applications RF AGC 0 / 90 PGA I ADC DSP DSP FILTER PGA Q ADC ATV FILTER DEMOD IF AGC LOW-IF 3.3 V 1.8 V LDO FREQ SYNTH XOSC DLIF AGC ALIF DTV DEMOD ATV DEMOD RSTB SDA SCL AV SoC ADDR GPIO XOUT XTAL_I XTAL_O Hybrid TV Tuner AGC OUTPUT INTERFACE Si2157 Hybrid ½-NIM tuner module iDTV (Integrated Digital TV) Hybrid terrestrial and cable STB Hybrid PVR, DVD and Blu-Ray disc recorder PC-TV accessories CONTROL INTERFACE - The Si2157 delivers exceptional picture quality and a higher number of received stations when compared to other solutions. Incorporating worldwide field experience from four prior tuner generations in mass production, the Si2157 delivers the highest tolerance to real-world reception conditions. ANTENNA INPUT C-Book, ARIB, EN55020, OpenCable™ specifications Lowest BOM for a silicon hybrid TV tuner - No balun - No 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 12.19.12 Si2157 Worldwide Digital and Analog TV Tuner 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 Supply voltage Unit 1.8 and 3.3, or only 3.3 V 496 mW 42 to 870 MHz 4.0 dB VHF-H 3.7 dB UHF 3.8 dB Terrestrial mode 3 dB Cable mode 9 dB VHF-H, N18, 36 +5 dBm VHF-H, N1, 2 –6 dBm 1 kHz 10 kHz 100 kHz 1 MHz –100 –100 –105 –132 dBc/Hz DSB: 125 Hz to 4 MHz 0.25 (-47) rms (dBc) S=P –72 dB ALIF/DLIF Output Center Frequency channel BW=6 MHz 7 MHz 8 MHz 4 to 7 4.5 to 6.5 5 to 6 MHz ALIF/DLIF Differential Output Voltage Programmable 0.5 to 2.0 Vppd Total Power Consumption ATV Mode, XOUT Disabled RF Input Frequency Range NF, terrestrial* VHF-L Return Loss* Wideband IIP3* Inband IIP3* LO Phase Noise at 860 MHz LO Integrated Phase Noise at 860 MHz Analog IF Spurious Distortion *Note: Measured at the F-connector input of the Si2157 EVB and includes all connector, PCB, and front-end circuit losses. Selection Guide Part # Description Si2157 Worldwide hybrid TV tuner for NTSC, PAL/SECAM, ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB Pin Assignments VDD_H VDD_H GND XTAL_O XTAL_I XOUT LDO_ADJ RF_REF 22 4x4 mm QFN-28 Package Information 21 20 19 18 17 16 15 RF_IP 23 14 VDD_L RF_IN 24 13 ALIF_P A PIN#1 I .D. (LA SER M ARK) Pi n # 1 ID f e B SE ATI NG PLANE RF_SHLD 25 C A B DE TAI L "A" 12 ALIF_N GND PAD ADDR 26 4X cx c eee C 11 DLIF_P ddd C A B AGC1 28 9 DLIF_N A 0.80 0.85 0.90 mm 8 VDD_D D, E 4.00 BSC mm e 0.50 BSC mm f 3.50 BSC 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 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. 12.19.12