欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: MC56F8356
廠商: Motorola, Inc.
英文描述: 56F8356 16-bit Hybrid Controller
中文描述: 56F8356 16位混合控制器
文件頁數: 147/160頁
文件大小: 1380K
代理商: MC56F8356
Equivalent Circuit for ADC Inputs
56F8356 Technical Data
Preliminary
147
significantly reduced (by as much as 28%) the collective variation (spread) of the absolute error of
the population. It also significantly reduced (by as much as 80%) the mean (average) of the
absolute error and thereby brought it significantly closer to the ideal value of zero. Although not
guaranteed, it is believed that calibration will produce results similar to those shown above for any
population of parts including those which represent processing and temperature extremes.
10.17 Equivalent Circuit for ADC Inputs
Figure 10-23
illustrates the ADC input circuit during sample and hold. S1 and S2 are always
open/closed at the same time that S3 is closed/open. When S1/S2 are closed & S3 is open, one input
of the sample and hold circuit moves to V
REFH
- V
REFH
/ 2, while the other charges to the analog
input voltage. When the switches are flipped, the charge on C1 and C2 are averaged via S3, with
the result that a single-ended analog input is switched to a differential voltage centered about
V
REFH
- V
REFH
/ 2. The switches switch on every cycle of the ADC clock (open one-half ADC
clock, closed one-half ADC clock). Note that there are additional capacitances associated with the
analog input pad, routing, etc., but these do not filter into the S/H output voltage, as S1 provides
isolation during the charge-sharing phase.
One aspect of this circuit is that there is an on-going input current, which is a function of the analog
input voltage, V
REF
and the ADC clock frequency.
1.
2.
3.
4.
Parasitic capacitance due to package, pin-to-pin and pin-to-package base coupling; 1.8pf
Parasitic capacitance due to the chip bond pad, ESD protection devices and signal routing; 2.04pf
Equivalent resistance for the ESD isolation resistor and the channel select mux; 500 ohms
Sampling capacitor at the sample and hold circuit. Capacitor C1 is normally disconnected from the input and is
only connected to it at sampling time; 1pf
Figure 10-23 Equivalent Circuit for A/D Loading
10.18 Power Consumption
This section provides additional detail which can be used to optimize power consumption for a
given application.
Power consumption is given by the following equation:
Total power =
A: internal [static component]
+ B: internal [state-dependent component]
+ C: internal [dynamic component]
+ D: external [dynamic component]
+ E: external [static]
1
2
3
Analog Input
4
S1
S2
S3
C1
C2
S/H
C1 = C2 = 1pF
(V
REFH
- V
REFLO
) / 2
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關PDF資料
PDF描述
MC56F8356VFV60 56F8356 16-bit Hybrid Controller
MC56F8356MFV60 56F8356 16-bit Hybrid Controller
MC56F8357 16-bit Digital Signal Processor
MC56F8357 16-BIT HYBRID CONTROLLERS
MC56F8357MPY60 16-bit Digital Signal Processor
相關代理商/技術參數
參數描述
MC56F8356MFV60 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC56F8356MFVE 功能描述:數字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 安裝風格:SMD/SMT
MC56F8356VFV60 功能描述:數字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 安裝風格:SMD/SMT
MC56F8356VFVE 功能描述:數字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 安裝風格:SMD/SMT
MC56F8357 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-BIT HYBRID CONTROLLERS
主站蜘蛛池模板: 昭通市| 景德镇市| 茂名市| 应用必备| 揭东县| 巨鹿县| 山东| 麻栗坡县| 兴文县| 遂川县| 呼伦贝尔市| 宜章县| 和田市| 龙南县| 开阳县| 松桃| 长治县| 洛宁县| 杭州市| 兴业县| 永兴县| 包头市| 黄平县| 邯郸县| 额尔古纳市| 东乌珠穆沁旗| 玉树县| 兖州市| 工布江达县| 永德县| 高碑店市| 丰宁| 汉阴县| 阜宁县| 霍林郭勒市| 沁阳市| 贞丰县| 新竹县| 城口县| 宁津县| 城步|