- 您现在的位置：买卖IC网 > PDF目录19384 > ADSP-21161NKCA-100 (Analog Devices Inc)IC DSP CONTROLLER 32BIT 225MBGA PDF资料下载
参数资料
| 型号： | ADSP-21161NKCA-100 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/60页 |
| 文件大小： | 0K |
| 描述： | IC DSP CONTROLLER 32BIT 225MBGA |
| 产品培训模块： | SHARC Processor Overview |
| 标准包装： | 1 |
| 系列： | SHARC® |
| 类型： | 浮点 |
| 接口： | 主机接口，连接端口，串行端口 |
| 时钟速率： | 100MHz |
| 非易失内存： | 外部 |
| 芯片上RAM： | 128kB |
| 电压 - 输入/输出： | 3.30V |
| 电压 - 核心： | 1.80V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 225-BGA，CSPBGA |
| 供应商设备封装： | 225-CSPBGA（17x17） |
| 包装： | 托盘 |
| 其它名称： | ADSP-21161NKCA100 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页
Rev. C
|
Page 21 of 60
|
January 2013
The external component of total power dissipation is caused by
the switching of output pins. Its magnitude depends on:
The number of output pins that switch during each cycle
(O)
The maximum frequency at which they can switch (f)
Their load capacitance (C)
Their voltage swing (VDD)
and is calculated by:
The load capacitance should include the processor package
capacitance (CIN). The switching frequency includes driving the
load high and then back low. At a maximum rate of 1/tCK,
address and data pins can drive high and low, while writing to a
SDRAM memory.
Example: Estimate PEXT with the following assumptions:
A system with one bank of external memory (32 bit)
Two 1M
16 SDRAM chips are used, each with a load of
10 pF (ignoring trace capacitance)
External Data Memory writes can occur every cycle at a
rate of 1/tCK with 50% of the pins switching
The bus cycle time is 55 MHz
The external SDRAM clock rate is 110 MHz
Ignoring SDRAM refresh cycles
Addresses are incremental and on the same page
The PEXT equation is calculated for each class of pins that can
drive, as shown in Table 9.
A typical power consumption can now be calculated for these
conditions by adding a typical internal power dissipation:
Where:
PPLL is AIDD × 1.8 V, using the value for AIDD listed in the Electri-
cal Characteristics on Page 18.
Note that the conditions causing a worst-case PEXT are different
from those causing a worst-case PINT. Maximum PINT cannot
occur while 100% of the output pins are switching from all ones
to all zeros. Note also that it is not common for an application to
have 100% or even 50% of the outputs switching
simultaneously.
Table 8. Operation Types Versus Input Current
Operation
Peak Activity1 (IDDINPEAK)High Activity
DDINHIGH)Low Activity
DDINLOW)
Instruction Type
Multifunction
Single Function
Instruction Fetch
Cache
Internal Memory
Core Memory Access
2 per tCK cycle (DM64 and PM64)
1 per tCK cycle (DM64)
None
Internal Memory DMA
1 per 2 tCCLK cycles
N/A
External Memory DMA
1 per external port cycle (
32)
1 per external port cycle (
32)
N/A
Data bit pattern for core
memory access and DMA
Worst case
Random
N/A
1 The state of the PEYEN bit (SIMD versus SISD mode) does not influence these calculations.
2 These assume a 2:1 core clock ratio. For more information on ratios and clocks (t
P
EXT
OC
V
DD
2
f
=
P
TOTAL
P
EXT
P
INT
P
PLL
++
=
Table 9. External Power Calculations—110 MHz Instruction Rate
Pin Type
Number of Pins
% Switching
C
f
VDD
2
= PEXT
Address
11
20
24.7 pF
55 MHz
10.9 V
= 0.033 W
MSx
4
0
24.7 pF
N/A
10.9 V
= 0.000 W
SDWE
1
0
24.7 pF
N/A
10.9 V
= 0.000 W
Data
32
50
14.7 pF
55 MHz
10.9 V
= 0.141 W
SDCLK0
1
100
24.7 pF
110 MHz
10.9 V
= 0.030 W
PEXT = 0.204 W
相关PDF资料 |
PDF描述 |
|---|---|
| JWS1505/A | POWER SUP 150W 5V 30A ENCLOSED |
| RMC44DRYN | CONN EDGECARD 88POS DIP .100 SLD |
| ECM12DTBD-S189 | CONN EDGECARD 24POS R/A .156 SLD |
| RSC44DRYH | CONN EDGECARD 88POS DIP .100 SLD |
| VI-B1V-CV-F1 | CONVERTER MOD DC/DC 5.8V 150W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADSP-21161NKCA-100Z | 制造商:Analog Devices 功能描述: |
| ADSP-21161NKCAZ100 | 功能描述:IC DSP CONTROLLER 32BIT 225MBGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:SHARC® 标准包装:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| ADSP-21161NYCAZ110 | 功能描述:IC DSP CONTROLLER 32BIT 225BGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:SHARC® 标准包装:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| ADSP-21261 | 制造商:AD 制造商全称:Analog Devices 功能描述:SHARC Embedded Processor |
| ADSP-21261SKBC-150 | 制造商:Analog Devices 功能描述:DSP Floating-Point 32-Bit 150MHz 150MIPS 136-Pin CSP-BGA 制造商:Rochester Electronics LLC 功能描述:150 MHZ, 32BIT DSP PROCESSOR. - Bulk |
发布紧急采购，3分钟左右您将得到回复。