Texas Instruments AMC1210EVM Manual de usuario

1 EVM Overview

1.1 Analog Interface

User's GuideSLAU185 – August 2006

AMC1210EVM

Contents1 EVM Overview ...................................................................................... 12 EVM Operation ...................................................................................... 33 AMC1210 Modular EVM Bill of Materials ........................................................ 4

The AMC1210 modular evaluation module (EVM) provides four modulator channels from the ADS1204 forthe AMC1210. Two are designated for resolver applications and two are designated for currentmeasurements. All interface modes of the AMC1210 are provided.

The new modular EVM form factor allows for direct evaluation of the AMC1210’s performance andoperating characteristics. This EVM is compatible with the HPA-MCU Interface Board (SLAU106 ) fromTexas Instruments.

•Four modulator channels provided by ADS1204•All AMC1210 interface modes available•Direct operation with a variety of DSK and microcontroller platforms from Texas Instruments•All four ADS1204 channels have an input range of 0 V to 5 V.

The AMC1210 modular EVM is designed for easy interfacing to resolvers and current sensors. ConnectorJ05 is a 9-pole DSUB jack for easy connection to standard resolvers. To hold the floating resolver inputsto a predefined common mode level, a 2.5-V voltage is added on the resolver inputs.Signal Description

J05.1 IN1+ Positive sine wave inputJ05.2 IN1– Negative sine wave inputJ05.3 IN2 + Positive cosine wave inputJ05.6 PWM1 Positive carrier wave outputJ05.7 PWM2 Negative carrier wave outputJ05.8 IN2– Negative cosine wave inputShield PE Cable shield

At the connectors J03 and J04, analog current sensor signals can be connected.Signal Description

J03.1, J04.1 IN3+, IN4+ Positive current input signalJ03.2, J04.2 PE Cable shieldJ03.3, J04.3 IN3–, IN4– Negative current input signal

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1.2 Digital Interface

EVM Overview

J07 is a dummy connector for mechanical stability purposes only.

The inputs of the ADS104 are secured against voltage peaks through clamp diodes.

The AMC1210 modular EVM is designed for easy interfacing to multiple control platforms. Through theconnectors J09 and J08, the AMC1210 can be configured through a SPI interface from a F2812 type DSK.Signal Description

J08.1 CLK System clockJ08.2 SH2 Sample-and-hold signal 2J08.7 SH1 Sample-and-hold signal 1J09.3 SPICLK SPI clockJ09.7 SPISTE SPI frame syncJ09.11 SPIDIN SPI input dataJ09.13 SPIDOUT SPI output dataJ09.14 RST Asynchronous reset inputJ09.15 ACK Data acknowledge outputJ09.19 INT Interrupt output

Through J08, J09, J10, and J11, the AMC1210 can be configured through one of three differentmultiplexed parallel interface modes.Signal

(1)

Description

J08.1 CLK System clockJ08.2 SH2 Sample-and-hold signal 2J08.7 SH1 Sample-and-hold signal 1J09.14 RST Asynchronous reset inputJ10.1 CS Chip selectJ10.3 WR Write signalJ10.5 RD Read signalJ11.1 AD0 Address/databus bit 0 (LSB)J11.3 AD1 Address/databus bit 1J11.5 AD2 Address/databus bit 2J11.7 AD3 Address/databus bit 3J11.9 AD4 Address/databus bit 4J11.11 AD5 Address/databus bit 5J11.13 AD6 Address/databus bit 6J11.15 AD7 Address/databus bit 7 (MSB)J09.15 ACK Data acknowledge outputJ09.17 ALE Address latch enableJ09.19 INT Interrupt output

(1)

All even pin numbers of the connectors J10, J11, J12, and J15 are grounded.

All digital signals can be accessed through the connectors J12, J13, J14, and J15 on the top of theAMC1210 modular EVM. The different signals are placed at the same position as the bottom-mountedconnectors, see the preceding tables.

For higher frequencies on the CLK input of the AMC1210, it could be possible to reduce the value of theseries resistor R47.

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1.3 Power Supply

2 EVM Operation

EVM Operation

The AMC1210 modular EVM requires two supply voltages and two optional supply voltages. A 5-Vdcvoltage is needed for the ADS1204 and the core of the AMC1210. A variable supply in the range of 2.7Vdc to 5 Vdc is needed for the interface pins of the AMC1210. In addition, a ±15-V supply is necessary ifthe PWM driver operational amplifier OPA1632 is used. If the AMC1210 modular EVM is used incombination with the HPA-MCU Interface Board, J06 provides connection to the common power busdescribed in the document SLAU106 .

When used as a stand-alone EVM, the power supplies can be applied to J01 and J02. While filters areprovided for all four power supplies, optimal performance of the EVM requires a clean, well-regulatedpower source.

To configure a desired interface mode of the AMC1210 the jumpers JP09, JP10, and JP16 are used.Jumper Description

JP09 JP10 JP16

Open Open Open SPI interface modeOpen Closed Closed Parallel interface mode 1Closed Open Closed Parallel interface mode 2Closed Closed Closed Parallel interface mode 3 (Factory default condition)

The jumpers JP01, JP06, and JP11 determine the clocking scheme of the ADS1204.Jumper Description

JP01 JP06 JP11

1-2 Closed Open Open The ADS1204 gets the clock from AMC1210 pin CLK4.2-3 Closed Open Closed The ADS1204 gets the system clock. (Factory default condition)2-3 Closed Closed Open The ADS1204 works with its internal clock.

The jumpers JP07 and JP08 choose the driver of the PWM output pins for the resolver carrier signal.Jumper Description

JP07, JP08

1-2 Closed The PWM signal is driven directly from the AMC1210.2-3 Closed The PWM signal is driven by the operational amplifier OPA1632.(Factory default condition)

The AMC1210 can drive up to 100 mA directly from the pins PWM1 and PWM2. The purpose of theoperational amplifier OPA1632 is for the ability of filtering the carrier signal and still be capable of driving85 mA. If the OPA1632 operational amplifier is not used, the ±15-V supply can be left unconnected. In thiscase, it is recommenced to remove the resistors R24 and R26 to prevent latchup effects in the operationalamplifier and nonlinearities on the PWM outputs.

The jumpers JP02, JP03, JP04, and JP05 determine if the current sensor signals will be buffered orconnected directly to the ADS1204 inputs.Jumper Description

JP02, JP03, JP12, JP13,JP04, JP05 JP14, JP15

1-2 Closed Closed The current sensor signal is buffered. (Factory default condition)2-3 Closed Open The current sensor signal is unbuffered.

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3 AMC1210 Modular EVM Bill of Materials

AMC1210 Modular EVM Bill of MaterialsThe ADS1204 has a reference input pin for each channel and a reference output pin. This reference inputpin normally is direct connected to the 2.5-V reference output pin through a buffer and a RC-low-passfilter. If the input signal span is from either the resolver or the current sensor, a resistive divider can beadded to reduce the reference voltage at the input pin. The resistor R53 has to be soldered in to reducethe reference voltage for the resolver channels. The resistor R55 has to be soldered in to reduce thereference voltage for the current sensor channels.

The following table contains a complete bill of materials for the AMC1210EVM.Designators Description Manufacturer Mfg. Part Number

C01, C14, C16, C25, C034 10 µF, size A, tantalum, 16 V, 10% Kemet T491A106K016ASC02, C04, C06, C08, C09, 100 nF, 0805, ceramic, 50 V, 10%, X7R TDK C0805C104K5RACC15, C17, C18, C20, C22,C26–30, C35, C36, C44 C45C10–C13 22 pF, 0805, ceramic, 50 V, 10%, COG TDK C0805C220K5GACC19, C21 10 µF, size C, tantalum, 20 V, 10% Kemet T491C106K020ASC23, C24 1000 pF, 0805, ceramic, 50 V, 10%, X7R TDK C0805C102K5RACC31–C33, C43 33 µF, size D, tantalum, 16 V, 10% Kemet T491D336K016ASC37–C42 1 µF, 0805, ceramic, 16 V, 10%, X7R TDK C0805C105K4RACD01 Zener diode, 7.5 V, 1.3 W Fairchild BZX85C7V5D02,D03 Zener diode, 18 V, 1.3 W Fairchild BZX85C18D04–D09, D15, D16 Small signal diodes, SOT23 Fairchild BAV99D10–D13 LED, SMT 1206, Green Kingbright KPTD-3216CGCKD14 Zener diode, 5.1 V, 1.3 W Fairchild BZX85C_5V1F1-F4 (Optional - not installed Filter, EMI suppression, 0.5 MHz-1 GHz, 50 VDC, Murata BNX002-01on production EVMs) 10AMJ01-J04 3 Terminal screw connector OST ED1515J05 DB9, RTANG RECPT 0.318 W/ STD HDWR Assmann ADF09LLFJ06 (bottom side) 5 pin, dual row, SMT socket Samtec SSW-105-F-D-VS-KJ07–J10 (bottom side) 10 pin, dual row, SMT socket Samtec SSW-110-F-D-VS-KJ11(bottom side) 16 pin, dual row, SMT socket Samtec SSW-116-F-D-VS-KJ12(top side) 16 pin, dual row, SMT header Samtec TSM-116-01-T-DVJ13-J15(top side) 10 pin, dual row, SMT header Samtec TSM-110-01-T-DVJP01–JP05, JP07, JP08 3 Pin header Samtec TSW-103-07-L-SJP06, JP09–JP16 2 Pin header Samtec TSW-102-07-L-SR01, R04, R05, R08, R13, 10.0 Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW080510R0FR16, R19, R22, R58, R59,R60–R65

R02, R03, R06, R07 4.99 k Ω, 0805, 0.10 W, 1% Vishay/Dale CRCW08054991FR11, R12, R14, R15, R17, 2.0 k Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW08052001FR18, R20, R21, R24, R26,R52, R54R23, R28, R29, R51, R56, R74 10.0 k Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW08051002FR25,R27 2.49 k Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW08052491FR30–R39 200 Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW08052000FR40–R46, R48, R72, R73 1.0 k Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW08051001FR47 511 Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW08055110FR53, R55 Not installedR57, R70, R71 100 k Ω, 0805, 0.100 W, 1% Vishay/Dale CRCW08051003FR66, R67 1.50 k Ω, 1206, 0.125 W, 1% Vishay/Dale CRCW12061501FR68 332 Ω, 1206, 0.125 W, 1% Vishay/Dale CRCW12063320F

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3.1 AMC1210 Modular EVM Schematic

AMC1210 Modular EVM Bill of Materials

Designators Description Manufacturer Mfg. Part Number

R69 511 Ω, 1206, 0.125 W, 1% Vishay/Dale CRCW12065110FU01 AMC1210 Texas Instruments AMC1210RHAU02 ADS1204 Texas Instruments ADS1204IU03 OPA4354 Texas Instruments OPA4354UU04 OPA2347 Texas Instruments OPA2347UAU05-U07 SN74LVC2G157 Texas Instruments SN74LVC2G157DCTU08 OPA1632 Texas Instruments OPA1632UA

The schematic diagram is shown on the following page.

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EVALUATION BOARD/KIT IMPORTANT NOTICE

Texas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATIONPURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling theproduct(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided arenot intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations,including product safety and environmental measures typically found in end products that incorporate such semiconductorcomponents or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regardingelectromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet thetechnical requirements of these directives or other related directives.Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BYSELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDINGANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from allclaims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility totake any and all appropriate precautions with regard to electrostatic discharge.EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHERFOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive.

TI assumes no liability for applications assistance, customer product design, software performance, or infringement ofpatents or services described herein.

Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling theproduct. This notice contains important safety information about temperatures and voltages. For additional information on TI’senvironmental and/or safety programs, please contact the TI application engineer or visit www.ti.com/esh .No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, orcombination in which such TI products or services might be or are used.

FCC Warning

This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATIONPURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, andcan radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of thisequipment in other environments may cause interference with radio communications, in which case the user at his own expensewill be required to take whatever measures may be required to correct this interference.

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of +15 V to -15 V and the output voltage range of 0 V to 5 V.Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there arequestions concerning the input range, please contact a TI field representative prior to connecting the input power.Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to theEVM. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the loadspecification, please contact a TI field representative.During normal operation, some circuit components may have case temperatures greater than 30 °C. The EVM is designed tooperate properly with certain components above 60 °C as long as the input and output ranges are maintained. These componentsinclude but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types ofdevices can be identified using the EVM schematic located in the EVM User's Guide. When placing measurement probes nearthese devices during operation, please be aware that these devices may be very warm to the touch.

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements,improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.Customers should obtain the latest relevant information before placing orders and should verify that such information is current andcomplete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’sstandard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support thiswarranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarilyperformed.

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