参数资料
型号: 71M6543F-IGT/F
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP100
封装: LEAD FREE, LQFP-100
文件页数: 26/157页
文件大小: 2178K
代理商: 71M6543F-IGT/F
71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
121
5.4.4
Environment
Before starting the CE using the CE_E bit (I/O RAM 0x2106[0]), the MPU has to establish the proper
environment for the CE by implementing the following steps:
Locate the CE code in Flash memory using CE_LCTN[5:0] (I/O RAM 0x2109[5:0]) in the 71M6543F/H
and CE_LCTN[6:0] (I/O RAM 0x2109[6:0]) in the 71M6543G/GH
Load the CE data into RAM.
Establish the equation to be applied in EQU[2:0] (I/O RAM 0x2106[7:5]).
Establish the accumulation period and number of samples in SUM_SAMPS[12:0] (I/O RAM
0x2107[4:0], 0x2108[7:0]).
Establish the number of cycles per ADC multiplexer frame (MUX_DIV[3:0] (I/O RAM 0x2100[7:4])).
Apply proper values to MUXn_SEL, as well as proper selections for DIFFn_E (I/O RAM 0x210C[ ]) and
RMTn_E (I/O RAM 0x2709[ ] in order to configure the analog inputs.
Initialize any MPU interrupts, such as CE_BUSY, XFER_BUSY, or the power-failure detection interrupt.
When different CE codes are used, a different set of environment parameters need to be established.
The exact values for these parameters are listed in the Application Notes and other documentation which
accompanies the CE code.
Operating CE codes with environment parameters deviating from the values specified by Teridian
leads to unpredictable results.
Typically, there are fifteen 32768 Hz cycles per ADC multiplexer frame (see 2.2.2). This means that the
product of the number of cycles per frame and the number of conversions per frame must be 14 (allowing
for one settling cycle). The default configuration is FIR_LEN = 01, I/O RAM 0x210C[1] (two cycles per
conversion) and MUX_DIV[3:0] = 7 (7 conversions per multiplexer cycle).
Sample configurations can be copied from Demo Code provided by Teridian with the Demo Kits.
5.4.5
CE Calculations
Referring to Table 73, The MPU selects the desired equation by writing the EQU[2:0] (I/O RAM
0x2106[7:5]).
Table 73: CE EQU[2:0] Equations and Element Input Mapping
EQU
[2:0]*
Watt & VAR Formula
(WSUM/VARSUM)
W0SUM/
VAR0SUM
W1SUM/
VAR1SUM
W2SUM/
VAR2SUM
I0SQ
SUM
I1SQ
SUM
I2SQ
SUM
2
VA*IA + VB*IB
(2-element, 3-W, 3
φ
Delta)
VA * IA
VB * IB
N/A
IA
IB
3
VA*(IA-IB)/2 + VC*IC
(2 element, 4W 3
φ Delta)
VA*(IA-IB)/2
VC*IC
IA-IB
IB
IC
4
VA*(IA-IB)/2 + VB*(IC-IB)/2
(2 element, 4W 3
φ Wye)
VA*(IA-IB)/2 VB*(IC-IB)/2
IA-IB
IC-IB
IC
5
VA*IA + VB*IB + VC*IC
(3 element, 4W 3
φ Wye)
VA*IA
VB*IB
VC*IC
IA
IB
IC
Note:
* Only EQU[2:0] = 5 is supported by the currently available CE code versions for the 71M6543. Contact
your local Teridian representative for CE codes that support equations 2, 3 and 4.
相关PDF资料
PDF描述
71M6543H-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543F-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543H-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543G-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543GH-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
相关代理商/技术参数
参数描述
71M6543F-IGTR/F 功能描述:计量片上系统 - SoC Precision Energy Meter IC 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
71M6543FT-IGT/F 制造商:Maxim Integrated Products 功能描述:ENERGY METER ICS - Rail/Tube
71M6543FT-IGTR/F 制造商:Maxim Integrated Products 功能描述:3-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel
71M6543G 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation
71M6543GH 制造商:未知厂家 制造商全称:未知厂家 功能描述:电表IC