參數(shù)資料
型號: 71M6511H-IGTR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64
封裝: LEAD FREE, LQFP-64
文件頁數(shù): 5/98頁
文件大?。?/td> 1278K
代理商: 71M6511H-IGTR/F
71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
NOVEMBER 2010
Page: 13 of 98
2005–2010 Teridian Semiconductor Corporation
V2.7
A Maxim Integrated Products Brand
Real-Time Monitor
The CE contains a Real Time Monitor (RTM), which can be programmed to monitor four selectable CE RAM locations at full
sample rate. The four monitored locations are serially output to the TMUXOUT pin via the digital output multiplexer at the
beginning of each CE code pass (see the Test Ports Section for details)
CE Functional Overview
The ADC processes one sample per channel per multiplexer cycle. Figure 4 shows the timing of the samples taken during one
multiplexer cycle.
The number of samples processed during one accumulation cycle is controlled by the I/O RAM registers PRE_SAMPS
(0x2001[7:6]) and SUM_CYCLES (0x2001[5:0]). The integration time for each energy output is
PRE_SAMPS * SUM_CYCLES / 2520.6, where 2520.6 is the sample rate [Hz] (for MUX_DIV = 1)
For example, PRE_SAMPS = 42 and SUM_CYCLES = 50 will establish 2100 samples per accumulation cycle. PRE_SAMPS = 100
and SUM_CYCLES = 21 will result in the exact same accumulation cycle of 2100 samples or 833ms. After an accumulation
cycle is completed, the XFER_BUSY interrupt signals to the MPU that accumulated data are available.
VA
IA
1/32768Hz =
30.518s
13/32768Hz = 397s
per mux cycle
IB
VA
IA
1/32768Hz =
30.518s
13/32768Hz = 397s
per mux cycle
IB
Figure 4: Samples in Multiplexer Cycle
The end of each multiplexer cycle is signaled to the MPU by the CE_BUSY interrupt. At the end of each multiplexer cycle,
status information, such as sag data and the digitized input signal, is available to the MPU.
XFER_BUSY
Interrupt to MPU
20ms
833ms
XFER_BUSY
Interrupt to MPU
20ms
833ms
Figure 5: Accumulation Interval
Figure 5 shows the accumulation interval resulting from MUX_DIV = 1, PRE_SAMPS = 42 and SUM_CYCLES = 50, consisting of
2100 samples of 397s each, followed by the XFER_BUSY interrupt. The sampling in this example is applied to a 50Hz signal.
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71M6511-IGT 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Single-Phase Energy Meter IC
71M6511-IGT/F 功能描述:計量片上系統(tǒng) - SoC Highly Integrated SoC w/MCU Core RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6511-IGT/F1 功能描述:計量片上系統(tǒng) - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6511-IGTR 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Single-Phase Energy Meter IC
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