Title :
A dual-band digital TV tuner for CMMB application SoC
Author :
Kim, Huijung ; Kang, Sanghoon ; Choi, Jeong-Hyun ; Kim, Taewan ; Lee, BongDae ; Bae, Jong-Dae ; Choo, Wooseung ; Park, Hojin ; Park, Byeong-Ha
Author_Institution :
Samsung Electron. Co. Ltd., Yongin, South Korea
Abstract :
A dual-band digital TV tuner for CMMB application SoC is presented. The single-chip SoC satisfies all requirements of CMMB application with margin. Moreover, the SoC meets the GSM IOP which means the co-operation GSM transmitter and mobile TV reception. To suppress GSM transmitter signal in UHF band, LC-tuned load and tunable input matching scheme are adopted in UHF LNA. The SoC consists of two RF LNAs covering the 470 to 798MHz (UHF), and 2635 to 2660MHz (S-BAND) bands, an analog baseband filter supporting low pass filtering for direct conversion, and ΔΣ fractional-N synthesizer with one VCO. The measured sensitivity at UHF for the QPSK mode is -9.8dBm with ADC clock shift scheme.
Keywords :
UHF amplifiers; analogue-digital conversion; cellular radio; delta-sigma modulation; digital multimedia broadcasting; digital television; low noise amplifiers; low-pass filters; radio transmitters; system-on-chip; voltage-controlled oscillators; ΔΣ fractional-N synthesizer; ADC clock shift scheme; CMMB application; China mobile multimedia broadcasting; GSM IOP; LC-tuned load; QPSK mode; RF LNA; S-band; UHF LNA; UHF band; VCO; analog baseband filter; co-operation GSM transmitter; dual-band digital TV tuner; frequency 2635 MHz to 2660 MHz; frequency 470 MHz to 798 MHz; low pass filtering; mobile TV reception; single-chip SoC; tunable input matching; Frequency measurement; GSM; Phase shift keying; Radio frequency; Sensitivity; System-on-a-chip; Tuners; CMMB; GSM IOP; LC tuned LNA; Mobile TV; SoC; receiver; tuner;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940675
