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参数资料
| 型号： | SM320C6414DGADW60 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 64-BIT, 75 MHz, OTHER DSP, CPGA570 |
| 封装： | 33 X 33 MM, CERAMIC, FCPGA-570 |
| 文件页数： | 106/134页 |
| 文件大小： | 1997K |
| 代理商： | SM320C6414DGADW60 |
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SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A JANUARY 2004 REVISED MARCH 2004
73
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
C64x power-down mode with an emulator
If user power-down modes are programmed, and an emulator is attached, the modes will be masked to allow
the emulator access to the system. This condition prevails until the emulator is reset or the cable is removed
from the header. If power measurements are to be performed when in a power-down mode, the emulator cable
should be removed.
When the DSP is in power-down mode PD2 or PD3, emulation logic will force any emulation execution
command (such as Step or Run) to spin in IDLE. For this reason, PC writes (such as loading code) will fail. A DSP
reset will be required to get the DSP out of PD2/PD3.
power-supply sequencing
TI DSPs do not require specific power sequencing between the core supply and the I/O supply. However,
systems should be designed to ensure that neither supply is powered up for extended periods of time
(
>1 second) if the other supply is below the proper operating voltage.
power-supply design considerations
A dual-power supply with simultaneous sequencing can be used to eliminate the delay between core and I/O
power up. A Schottky diode can also be used to tie the core rail to the I/O rail (see Figure 10).
DVDD
CVDD
VSS
C6000
DSP
Schottky
Diode
I/O Supply
Core Supply
GND
Figure 10. Schottky Diode Diagram
Core and I/O supply voltage regulators should be located close to the DSP (or DSP array) to minimize
inductance and resistance in the power delivery path. Additionally, when designing for high-performance
applications utilizing the C6000
platform of DSPs, the PC board should include separate power planes for
core, I/O, and ground, all bypassed with high-quality low-ESL/ESR capacitors.
power-supply decoupling
In order to properly decouple the supply planes from system noise, place as many capacitors (caps) as possible
close to the DSP. Assuming 0603 caps, the user should be able to fit a total of 60 caps, 30 for the core supply
and 30 for the I/O supply. These caps need to be close to the DSP, no more than 1.25 cm maximum distance
to be effective. Physically smaller caps are better, such as 0402, but need to be evaluated from a
yield/manufacturing point-of-view. Parasitic inductance limits the effectiveness of the decoupling capacitors,
therefore physically smaller capacitors should be used while maintaining the largest available capacitance
value. As with the selection of any component, verification of capacitor availability over the product’s production
lifetime should be considered.
相关PDF资料 |
PDF描述 |
|---|---|
| SM320C6416DGADW60 | 64-BIT, 75 MHz, OTHER DSP, CPGA570 |
| SMJ320C6701GLPW16 | 32-BIT, 166.66 MHz, OTHER DSP, CBGA429 |
| SMJ34010-50FDM | GRAPHICS PROCESSOR, CQCC68 |
| SMJ34010-40GBM | GRAPHICS PROCESSOR, CPGA68 |
| SMJ34010FDM | GRAPHICS PROCESSOR, CQCC68 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SM320C6414-EP | 制造商:TI 制造商全称:Texas Instruments 功能描述:FIXED-POINT DIGITAL SIGNAL PROCESSORS |
| SM320C6415DGADW60 | 制造商:Texas Instruments 功能描述:DSP Fixed-Point 32-Bit 600MHz 4800MIPS 570-Pin FCPGA Tray |
| SM320C6416DGADW60 | 制造商:TI 制造商全称:Texas Instruments 功能描述:FIXD-POINT DIGITAL SIGNAL PROCESSORS |
| SM320C6424GDUQ6EP | 功能描述:数字信号处理器和控制器 - DSP, DSC EP Fixed-Pt Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| SM320C6455BGTZEP | 功能描述:数字信号处理器和控制器 - DSP, DSC Enh Product Fixed- Pt Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
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