基于TMS320DM6446的电源模块设计与实现.pdfVIP

33 3 Vo.l 33 No. 3 2010 6 Chinese Journal of Electron Devices Jun. 2010 * Power M odule D esign and Implem entation Based on TM S320DM 6446 * WAN G Feng, ZHAN G J ianw u (C ollege of Commun ica tion Engineering, H ang zhou D ianz i Univer ity, H angzh ou 310018, Ch ina) Abstract Targeted on the DSP system w ith core ofTM S320DM 6446 in the fam ily of DaV inciDSP, th is paper de signed and mi p lem ented a pow er modu le, adopting two p ieces of h ighly effective synchron ized pow erm anagement ch ipsTPS 5003 and TPS62040, in order tomeet the requ irements of the core voltage, I/O voltage and other auxil iary equ ipment pow er forDSP system. M eanw hile, three voltagemon itor ch ipsTPS3808 are utilized to mon itor the voltages produced by the pow erm anagement ch ips, ensuring both the reset circuit and the pow eron sequence of the core voltage forDSP and peripheral I/O voltage. K ey w ord s Pow erm anagement; Powermonitor; TM S320DM 6446; DSP EEACC 8110B; 2570 * TMS320DM6446 汪 锋, 章坚武* (, 310018) : ( DaV inci)DSP TMS320DM 6446 DSP , , : TPS 5003 TPS62040, I/0, ; , TPS3808, I/O : ; ; TM S320DM 6446; DSP TN9 11. 72 A 1005- 9490( 2010) 03- 0266- 05 (TI) ( D igitalM ed ia SoC), 1 , TMS320DM 6446, TI [ 1] ( DaV inci) TM S320DM6446 ARM , DSP T I, (VPSS), (V ICP) T I [ 2- 3] DSP 1. 2V1. 8V3. 3V , , , 5V, 5 V , 1. 2 V TM