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LMP91051EVM User’s Guide

October 2012

3. Installing the Software

a.

See the provided

Installation Guide for LMP91050 SensorAFE Software.pdf

i.

Note: If you run the software without the boards, you’ll get an error message. Ignore that

error message and click “Ok” to continue.

5.

Board Layout

Figure 9: LMP91051EVM Layout

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Содержание LMP91051EVM

Страница 1: ...n Module the SPIO 4 Digital Controller Board the Sensor AFE software and this user s guide is designed to ease evaluation and design in of Texas Instrument s LMP91051 Configurable AFE for Nondispersive Infrared NDIR Data capturing and evaluations are simplified by connecting the SPIO 4 Digital Controller Board SPIO 4 board to a PC via USB and running the Sensor AFE software The data capture board ...

Страница 2: ...and how to properly connect set up and use the LMP91051EVM 2 1 Connection Diagram Figure 1 shows the connection between the LMP91051 Evaluation Module LMP91051EVM SPIO 4 board and a personal computer with the Sensor AFE software LMP91051 can be powered using external power supplies or from the SPIO 4 board Figure 1 Connection Diagram 2 2 Jumper Connections 1 The jumpers for this example applicatio...

Страница 3: ... to 5V from SPIO4 JP4 OUT_DUT to ADC P1 P2 Connect LMP91051 OUT to ADC input RC filter JP5 VDD to VIO Open Connect LMP91051 VDD to VIO JP6 VIO P2 P3 Connect LMP91051 VIO to 3 3V from SPIO4 J1 IN1 to CMOUT Open Connect LMP91051 IN1 to CMOUT Note Board is provided with this jumper open Use provided jumper to short IN to CMOUT for easy evaluation J2 IN2 to CMOUT Open Connect LMP91051 IN2 to CMOUT Not...

Страница 4: ... this order 1 Connect the LMP91051EVM s J3 to SPIO 4 Board s J6 See Figure 3 Figure 3 LMP91051EVM to SPIO 4 Board Connection 2 Connect SPIO 4 board to a PC via USB 3 Use a multimeter to measure LMP91051EVM s 5V test point it should be approximately 5V If it is not check your power supplies and jumpers Measure test point VREF_ADC it should be approximately 4 1V If it s not check your jumpers and U5...

Страница 5: ... configuration settings register settings xml file c Register Map Opens Register Map window An alternative to the Virtual Device for writing and reading the device registers See datasheet for details on device Register Map d Save All Registers to File Saves register contents to a cvs file e Read All Register from Board After configuring the register map use this button to read all registers Functi...

Страница 6: ...oltage User should input value measured at VREF_ADC test point Value used to calculate displayed Output Voltage i Vout Dark This value corresponds to the user measured value at the LMP91051 output OUT when input is shorted IN CMOUT Tool will use this value to estimate LMP91051 input voltage IN CMOUT on subsequent measurements 3 Change Mode Change between device Read Mode OFF default and ON See dat...

Страница 7: ...051 Configuration for a voltage Reading 1 Step 1 Select a Sensor Sensor Database window opens See Figure 6 Step 1 Click sensor type Thermopile and the sensors will show in the bottom table Step 2 Click sensor and then click Select button on the left to use this sensor ...

Страница 8: ...click on the switch block to choose 0 PGA1 to PGA2 direct default 6 Step 6 Common Mode click on the CM GEN block to set 0 1 15V default 7 Step 7 GAIN 2 click on the PGA2 block to set 00 4 default 8 Step 8 GAIN 1 click on the PGA1 block to set 0 250 default 9 Step 8 DAC Output Offset click on the DAC block to set 128 default for 0 mV offset Alternatively user can also use the Offset Adjust Voltage ...

Страница 9: ...e shorted IN1 IN2 CMOUT output voltage should be about 1V Note Board is provided with jumper J1 J2 open Use provided jumper to short IN1 IN2 to CMOUT for easy evaluation Figure 7 Results of DC Reading 3 4 Powering the LMP91051EVM There are two ways in which VDD can be sourced external supply or SPIO 4 power If using an external power supply to source VDD do the following 1 Connect an external powe...

Страница 10: ... SPI timing diagrams Source LMP91051 VDD with an external power supply per previous section Figure 8 LMP91051EVM s J3 for SPI Signals Refer to the LMP91051 datasheet for more information on the LMP91051 s SPI protocol 4 Installing the Sensor AFE Software Each Sensor AFE product will have its own software To access the Sensor AFE software for LMP91051 follow the steps below 1 Getting the Zip Files ...

Страница 11: ...he Software a See the provided Installation Guide for LMP91050 SensorAFE Software pdf i Note If you run the software without the boards you ll get an error message Ignore that error message and click Ok to continue 5 Board Layout Figure 9 LMP91051EVM Layout ...

Страница 12: ...6 Schematic Figure 10 LMP91051EVM Schematic ...

Страница 13: ...ERM 0 1uF 25V 10 X7R 0805 AVX 08053C104KAT2A 2 10 C11 CAP CERM 0 1uF 100V 5 X7R 1206 AVX 12061C104JAT2A 1 11 C16 C20 CAP CERM 1uF 10V 10 X7R 0805 AVX 0805ZC105KAT2A 2 12 FID1 FID2 FID3 Fiducial mark There is nothing to buy or mount N A N A 3 13 GND1 GND2 GND3 GND4 GND5 GND6 GND7 GND8 GND9 GND10 GND11 Test Point TH Compact Black Keystone Electronics 5006 11 14 H1 H2 H3 H4 Bump Hemisphere B F Fasten...

Страница 14: ...truments LMP91051 1 29 U2 16 Bit 50 to 250 kSPS Differential Input MicroPower ADC 10 pin Mini SOIC Pb Free Texas Instruments ADC141S628QIMMX NOP B 1 30 U3 Non Inverting 3 State Buffer Texas Instruments SN74AHC1G125DCKR 1 31 U4 DNS Heimann HMS J21 1 32 U5 Precision Micropower Low Dropout Voltage Reference 8 pin Narrow SOIC Texas Instruments LM4140ACM 4 1 1 33 U6 2K 5 0V I2C Serial EEPROM On Semicon...

Страница 15: ...CC and Industry Canada IC rules For EVMs not subject to the above rules this evaluation board kit module is intended for use for ENGINEERING DEVELOPMENT DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of comp...

Страница 16: ...ompliance could void the user s authority to operate the equipment Concerning EVMs including radio transmitters This device complies with Industry Canada licence exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device Con...

Страница 17: ...test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after y...

Страница 18: ... property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads Any loads applied outside of the specified output range may result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Plea...

Страница 19: ...regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures monitor failures and their consequence...

Страница 20: ... 401 Building No 5 JiuGe Business Center Lane 2301 Yishan Rd Minhang District Shanghai China Sales Direct 86 21 6401 6692 Email amall ameya360 com QQ 800077892 Skype ameyasales1 ameyasales2 Customer Service Email service ameya360 com Partnership Tel 86 21 64016692 8333 Email mkt ameya360 com ...

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