- 您现在的位置：买卖IC网 > Datasheet目录299 > 71M6545-IGT/F (Maxim Integrated)IC ENERGY METERING Datasheet资料下载
参数资料
| 型号： | 71M6545-IGT/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/133页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING |
| 标准包装： | 160 |
| 系列： | * |
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页当前第12页第13页第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页第126页第127页第128页第129页第130页第131页第132页第133页
71M6545/71M6545H Data Sheet
PDS_6545_009
correction factors can be programmed to produce electricity meters with exceptional accuracy over the
industrial temperature range.
One of the two internal UARTs is adapted to support an Infrared LED with internal drive and sense
configuration and can also function as a standard UART. This flexibility makes it possible to implement
AMR meters with an IR interface. A block diagram of the IC is shown in Figure 1 .
2.2
Analog Front End (AFE)
The AFE functions as a data acquisition system, controlled by the MPU or by the host processor over the
SPI interface. The 71M6545/H AFE may also be augmented by isolated 71M6xx3 sensors in order to
support low-cost current shunt sensors. Figure 2 and Figure 3 show two of the most common
configurations; other configurations are possible. Sensors that are connected directly to the 71M6545/H
(i.e., IADC0-IADC1, VADC8, VADC9 and VADC10) are multiplexed into the single second-order sigma-
delta ADC input for sampling in the 71M6545/H. The 71M6545/H ADC output is decimated by the FIR
filter and stored in CE RAM where it can be accessed and processed by the CE.
Shunt current sensors that are isolated by using a 71M6xx3 device, are sampled by a second-order
sigma delta ADC in the 71M6xx3 and the signal samples are transferred over the digital isolation interface
through the low-cost isolation pulse transformer.
Figure 2 shows the 71M6545/H using shunt current sensors and the 71M6xx3 isolated sensor devices.
Figure 2 supports neutral current measurement with a local shunt connected to the IADC0-IADC1 input
plus three remote (isolated) shunt sensors. As seen in Figure 2 , when a remote isolated shunt sensor is
connected via the 71M6xx3, the samples associated with this current channel are not routed to the
multiplexer, and are instead transferred digitally to the 71M6545/H via the isolation interface and are
directly stored in CE RAM. The MUX_SELn[3:0] I/O RAM control fields allow the MPU to configure the
AFE for the desired multiplexer sampling sequence. Refer to Table 1 and Table 2 for the appropriate CE
code and the corresponding AFE settings.
See Figure 27 for the meter wiring configuration corresponding to Figure 2 .
IN*
VREF
Local
Shunt
IADC0
IADC1
VADC8 (VA)
MUX
VREF
VADC
?Σ ADC
CONVERTER
VREF
FIR
22
VADC9 (VB)
IA
VADC10 (VC)
Remote
Shunt
INP
71M6xx3
SP
S N
IADC2
IADC3
22
INN
IB
CE RAM
Remote
Shunt
INP
INN
71M6xx3
SP
S N
IADC4
IADC5
Digital
Isolation
Interface
22
IC
Remote
Shunt
INP
71M6xx3
SP
S N
IADC6
IADC7
22
INN
*IN = Neutral Current
71M6545/H
10/7/2010
Figure 2: AFE Block Diagram (Shunts: One-Local, Three-Remotes)
12
v2
相关PDF资料 |
PDF描述 |
|---|---|
| 720-10007-00300 | CBL D-SUB 9PIN FMAL-25PIN FML 3M |
| 720-10010-00025 | CBL DSUB 9PIN FML-25PIN MAL .25M |
| 720-10020-00300 | CBL DSUB 9PIN FML-9PIN MALE 3M |
| 720-10021-00300 | CBL DSUB 9PIN FML-9PIN FEMAL 3M |
| 72231-0881 | 8 POS T/P SHLD 4 GR ASSY |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6545-IGTR/F | 功能描述:计量片上系统 - SoC Metrology Proc. (3P 64K Flsh .1%) RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6545T-IGT/F | 制造商:Maxim Integrated Products 功能描述:METROLOGY PROCESSORS - Rail/Tube |
| 71M6545T-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE AFE, 32KB FLASH, PRES TEMP SENSOR - Tape and Reel |
| 71M6601 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:On-Chip Temperature Sensor Enables Localized Digital Temperature On-Chip Power Monitoring |
| 71M6601-IF | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:On-Chip Temperature Sensor Enables Localized Digital Temperature On-Chip Power Monitoring |
发布紧急采购，3分钟左右您将得到回复。