- 您现在的位置：买卖IC网 > PDF目录98011 > MC56F8011VFAE (FREESCALE SEMICONDUCTOR INC) 0-BIT, 8 MHz, OTHER DSP, PQFP32 PDF资料下载
参数资料
| 型号： | MC56F8011VFAE |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 0-BIT, 8 MHz, OTHER DSP, PQFP32 |
| 封装： | ROHS COMPLIANT, LQFP-32 |
| 文件页数： | 19/125页 |
| 文件大小： | 1702K |
| 代理商： | MC56F8011VFAE |
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页第14页第15页第16页第17页第18页当前第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页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页
Equivalent Circuit for ADC Inputs
56F8013/56F8011 Data Sheet, Rev. 11
Freescale Semiconductor
115
10.15 Equivalent Circuit for ADC Inputs
Figure 10-17 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 (VREFH-VREFL)/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 (VREFH-VREFL)/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, VREF and the ADC clock frequency.
1.
Parasitic capacitance due to package, pin-to-pin and pin-to-package base coupling; 1.8pF
2.
Parasitic capacitance due to the chip bond pad, ESD protection devices and signal routing; 2.04pF
3.
Equivalent resistance for the channel select mux; 100 ohms
4.
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; 1.4pF
5.
Equivalent input impedance, when the the input is selected =
Figure 10-17 Equivalent Circuit for A/D Loading
10.16 Power Consumption
See Section 10.1 for a list of IDD requirements for the 56F8013/56F8011. This section provides additional
detail which can be used to optimize power consumption for a given application.
5. LSB = Least Significant Bit = 0.806mV
6. Pin groups are detailed following Table 10-1.
7. For device S56F8013MFA00E, input leakage current is ± 1
μA.
8. The current that can be injected or sourced from an unselected ADC signal input without impacting the performance of the
ADC.
1
2
3
Analog Input
4
S1
S2
S3
C1
C2
S/H
C1 = C2 = 1pF
(VREFH- VREFL )/ 2
125
Ω ESD Resistor
8pF noise damping capacitor
1
(ADC Clock Rate) x 1.4 x 10-12
相关PDF资料 |
PDF描述 |
|---|---|
| S568013MFA00E | 0-BIT, 8 MHz, OTHER DSP, PQFP32 |
| MC56F8023VLC | 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP32 |
| MC56F8033VLC | 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP32 |
| MC56F8347MPY60 | 16-BIT, 120 MHz, OTHER DSP, PQFP160 |
| MC56F8355VFG60 | 4-BIT, 120 MHz, OTHER DSP, PQFP128 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC56F8013 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| MC56F8013E | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| MC56F8013MFAE | 功能描述:数字信号处理器和控制器 - DSP, DSC 16Bit DSPHC ANGUILLA 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 |
| MC56F8013MFAER2 | 制造商:Freescale Semiconductor 功能描述:16 BIT DSPHC ANGUILLA - Tape and Reel |
| MC56F8013PB | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
发布紧急采购，3分钟左右您将得到回复。