參數(shù)資料
型號： TMS320LC5x
廠商： Texas Instruments, Inc.
英文描述： 1A, 52kHz (250kHz Max) Current Mode PWM Control Circuit with 16V UVLO Threshold and 96% Max Duty Cycle; Package: 8 LEAD PDIP; No of Pins: 8; Container: Rail; Qty per Container: 50
中文描述： 數(shù)字信號處理器
文件頁數(shù)： 42/123頁
文件大?。?/td> 1205K
代理商： TMS320LC5X
www.ti.com
External Clock Signal
(Toggling 0V
DDIO
)
XCLKIN
X2
NC
X1
External Clock Signal
(Toggling 0V
DD
)
XCLKIN
X2
NC
X1
C
L1
X2
X1
Crystal
C
L2
XCLKIN
TMS320F2808, TMS320F2806
TMS320F2801, UCD9501
Digital Signal Processors
SPRS230F–OCTOBER 2003–REVISED SEPTEMBER 2005
2. A 1.8-V external oscillator can be directly connected to the X1 pin. The X2 pin should be left
unconnected and the XCLKIN pin tied low. The logic-high level in this case should not exceed V
DD
.
The three possible input-clock configurations are shown in
Figure 3-9
through
Figure 3-11
Figure 3-9. Using a 3.3-V External Oscillator
Figure 3-10. Using a 1.8-V External Oscillator
Figure 3-11. Using the Internal Oscillator
3.6.1.1
External Reference Oscillator Clock Option
The typical specifications for the external quartz crystal for a frequency of 20 MHz are listed below:
Fundamental mode, parallel resonant
C
L
(load capacitance) = 12 pF
C
L1
= C
L2
= 24 pF
C
shunt
= 6 pF
ESR range = 30 to 60
TI recommends that customers have the resonator/crystal vendor characterize the operation of their
device with the DSP chip. The resonator/crystal vendor has the equipment and expertise to tune the tank
circuit. The vendor can also advise the customer regarding the proper tank component values that will
produce proper start up and stability over the entire operating range.
3.6.1.2
PLL-Based Clock Module
The 280x devices have an on-chip, PLL-based clock module. This module provides all the necessary
clocking signals for the device, as well as control for low-power mode entry. The PLL has a 4-bit ratio
control PLLCR[DIV] to select different CPU clock rates. The watchdog module should be disabled before
writing to the PLLCR register. It can be re-enabled (if need be) after the PLL module has stabilized, which
takes 131072 OSCCLK cycles.
Functional Overview
42
相關(guān)PDF資料
PDF描述
TMS320LC5X 1A, 52kHz (250kHz Max) Current Mode PWM Control Circuit with 16V UVLO Threshold and 96% Max Duty Cycle; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
TMS320LF2406PG 1A, 52kHz (250kHz Max) Current Mode PWM Control Circuit with 16V UVLO Threshold and 96% Max Duty Cycle; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
TMS320LF2406PGA 1A, 52kHz (250kHz Max) Current Mode PWM Control Circuit with 16V UVLO Threshold and 96% Max Duty Cycle; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Tape and Reel; Qty per Container: 2500
TMS320LF2406PGE DSP CONTROLLERS
TMS320LF2406PGEA DSP CONTROLLERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320LF2401AVFA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Controller RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LF2401AVFS 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16-Bit Fixed-Pt DSP with Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LF2402APGA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16-Bit Fixed-Pt DSP with Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LF2402APGAR 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 18-Bit Univ Bus Drv With 3-State Outputs RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LF2402APGS 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16-Bit Fixed-Pt DSP with Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
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