Title :
A 48-pin “minichip” implementation of baseband analog processor for the CDMA mobile phones
Author :
Nah, Kyung-Suc ; Ahn, Tae-Won ; Baik, Seung-beom ; Choi, Jin-sub ; Choo, Woo-Seung ; Keum, Dong-Jin ; Sohn, II-young ; Jung, Duck-young
Author_Institution :
CDMA Team, Samsung Electron. Co. Ltd., Suwon, South Korea
fDate :
6/21/1905 12:00:00 AM
Abstract :
A 48-pin “minichip” version of the baseband to IF band transceiver chip for CDMA mobile phones, commonly known as the BBA chip, is introduced. It achieves about a thirty three percent reduction in the total pin count relative to the well established 80-pin package version. The paper also presents countermeasures taken against the worsened noise environment brought on by the increased sharing of the power and ground pins among the internal blocks. The minichip is fabricated in a 0.8-μm 8-GHz BiCMOS technology and consumes 36 mA from a 3.3 V supply. Its size is 4450×4450 μm2. The chip has found application in what are known as watch-phones
Keywords :
BiCMOS analogue integrated circuits; analogue processing circuits; code division multiple access; integrated circuit noise; low-power electronics; microwave integrated circuits; mobile radio; transceivers; 0.8 mum; 3.3 V; 36 mA; 48-pin minichip; 8 GHz; BBA chip; BiCMOS technology; CDMA mobile phones; baseband analog processor; baseband to IF band transceiver chip; countermeasures; noise environment; power consumption; power sharing; total pin count; watch-phones; Automatic control; Baseband; Circuits; Frequency modulation; Low pass filters; Mobile handsets; Multiaccess communication; Pins; Transceivers; Voltage-controlled oscillators;
Conference_Titel :
ASICs, 1999. AP-ASIC '99. The First IEEE Asia Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-5705-1
DOI :
10.1109/APASIC.1999.824125
