MODULATOR/DEMODULATOR FOR MODEM FUNCTION IN THE CELLULAR MOBILE PHONE

GENERAL DESCRIPTION The MSM74017 performs the modulator/demodulator functions in the modem part of the cellular mobile phone. The MSM74017 consists of digital PLL for Data Timing Signal (DTS), Received Audio Tone (RSAT) and shift register and is fabricated by OKIs low power consumption CMOS sili

MODULATOR/DEMODULATOR FOR MODEM FUNCTION IN THE CELLULAR MOBILE PHONE

MODULATOR/DEMODULATOR FOR MODEM FUNCTION IN THE CELLULAR MOBILE PHONE

GENERAL DESCRIPTION The MSM74017 performs the modulator/demodulator functions in the modem part of the cellular mobile phone. The MSM74017 consists of digital PLL for Data Timing Signal (DTS), Received Audio Tone (RSAT) and shift register and is fabricated by OKIs low power consumption CMOS sili

On the Direct Conversion Receiver

Introduction Very much like its well-established superheterodyne receiver counterpart, introduced in 1918 by Armstrong [1], the origins of the DCR date back to the first half of last century when a single down-conversion receiver was first described by F.M. Colebrook in 1924 [2], and the term hom

On the Direct Conversion Receiver

Introduction Very much like its well-established superheterodyne receiver counterpart, introduced in 1918 by Armstrong [1], the origins of the DCR date back to the first half of last century when a single down-conversion receiver was first described by F.M. Colebrook in 1924 [2], and the term hom