參數(shù)資料
型號: TMS320UVC5402PGE
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: FIXED-POINT DIGITAL SIGNAL PROCESSOR
中文描述: 定點(diǎn)數(shù)字信號處理器
文件頁數(shù): 42/123頁
文件大?。?/td> 1205K
代理商: TMS320UVC5402PGE
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
TMS320C6202BPYP167 FIXED-POINT DIGITAL SIGNAL PROCESSORS
TMS320C6711PZA167 FIXED-POINT DIGITAL SIGNAL PROCESSORS
TMS320C6211PZA167 FIXED-POINT DIGITAL SIGNAL PROCESSORS
TMS320VC5402PGE FIXED-POINT DIGITAL SIGNAL PROCESSOR
TMS320LC2404PZ DSP CONTROLLERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320V34PJ 制造商:Texas Instruments 功能描述:
TMS320V34PJX2 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
TMS320V640AGDK4 制造商:Texas Instruments 功能描述:TMS320DM640 548PIN FCBGA PG2.0 400 MHZ - Trays
TMS320V640AGNZ4 制造商:Texas Instruments 功能描述:TMS320DM640 548PIN FCBGA PG2.0 - Trays
TMS320V641AGDK5 制造商:Texas Instruments 功能描述:TMS320DM641AGDK PG2 548 PIN FCBGA 500MHZ - Trays