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| 型號(hào)： | 71M6541G-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| 封裝： | LEAD FREE, LQFP-64 |
| 文件頁(yè)數(shù)： | 7/165頁(yè) |
| 文件大?。?/td> | 2208K |
| 代理商： | 71M6541G-IGT/F |
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104
2008–2011 Teridian Semiconductor Corporation
v1.1
4.14
Flash Programming
4.14.1 Flash Programming via the ICE Port
Operational or test code can be programmed into the flash memory using either an in-circuit emulator or
the Flash Programmer Module (TFP-2) available from Teridian. The flash programming procedure uses
the E_RST, E_RXTX, and E_TCLK pins.
4.14.2 Flash Programming via the SPI Port
It is possible to erase, read and program the flash memory of the via the SPI port. See 2.5.10 SPI Slave
Port for a detailed description.
4.15
MPU Firmware Library
All application-specific MPU functions mentioned in 4 Application Information are featured in the
demonstration C source code supplied by Teridian. The code is available as part of the Demonstration Kit
for the 71M6541D/F and 71M6542F. The Demonstration Kits come with the preprogrammed with demo
firmware and mounted on a functional sample meter Demo Board. The Demo Boards allow for quick and
efficient evaluation of the IC without having to write firmware or having to supply an in-circuit emulator
(ICE).
4.16
Crystal Oscillator
The oscillator of the 71M6541D/F and 71M6542F drives a standard 32.768 kHz watch crystal. The oscillator
has been designed specifically to handle these crystals and is compatible with their high impedance and
limited power handling capability. The oscillator power dissipation is very low to maximize the lifetime of
any battery backup device attached to the VBAT_RTC pin.
Board layouts with minimum capacitance from XIN to XOUT require less battery current. Good layouts
have XIN and XOUT shielded from each other and from LCD and digital signals.
Since the oscillator is self-biasing, an external resistor must not be connected across the crystal.
4.17
Meter Calibration
Once the Teridian 71M654x energy meter device has been installed in a meter system, it must be
calibrated. A complete calibration includes the following:
Establishment of the reference temperature (e.g., typically 22
C)
Calibration of the metrology section, i.e., calibration for tolerances of the current sensors, voltage
dividers and signal conditioning components as well as of the internal reference voltage (VREF) at
the reference temperature (e.g., typically 22
C).
Calibration of the oscillator frequency using the RTCA_ADJ[7:0] I/O RAM register (I/O RAM 0x2504).
The metrology section can be calibrated using the gain and phase adjustment factors accessible to the
CE. The gain adjustment is used to compensate for tolerances of components used for signal conditioning,
especially the resistive components. Phase adjustment is provided to compensate for phase shifts
introduced by the current sensors or by the effects of reactive power supplies.
Due to the flexibility of the MPU firmware, any calibration method, such as calibration based on energy, or
current and voltage can be implemented. It is also possible to implement segment-wise calibration
(depending on current range).
The 71M6541D/F and 71M6542F support common industry standard calibration techniques, such as
single-point (energy-only), multi-point (energy, Vrms, Irms), and auto-calibration.
Teridian provides a calibration spreadsheet file to facilitate the calibration process. Contact your Teridian
representative to obtain a copy of the latest calibration spreadsheet file for the 71M654x.
相關(guān)PDF資料 |
PDF描述 |
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| 71M6541F-IGT/F | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| 71M6543F-IGT/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543H-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543F-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543H-IGT/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 71M6541GT-IGT/F | 功能描述:IC ENERGY METER 64-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:托盤(pán) 零件狀態(tài):停產(chǎn) 輸入阻抗:- 測(cè)量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計(jì)類(lèi)型:單相 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:64-LQFP 供應(yīng)商器件封裝:64-LQFP（10x10） 標(biāo)準(zhǔn)包裝:1,000 |
| 71M6541GT-IGTR/F | 功能描述:IC ENERGY METER 64-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:帶卷（TR） 零件狀態(tài):停產(chǎn) 輸入阻抗:- 測(cè)量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計(jì)類(lèi)型:單相 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:64-LQFP 供應(yīng)商器件封裝:64-LQFP（10x10） 標(biāo)準(zhǔn)包裝:1,500 |
| 71M6542F | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:71M6541D/71M6541F/71M6541G/71M6542F/71M6542G 是 TeridianTM 的第4 代高集成度單相電表SoC |
| 71M6542F-IGT/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類(lèi)型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類(lèi)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 |
| 71M6542F-IGTR/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類(lèi)型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類(lèi)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 |
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