Texas Instruments Electric Heater TLC3578EVM User Manual

TLC3578EVM Family  
User’s Guide  
August 2003  
Data Acquisition−Digital/Analog Converters  
SLAU110  
 
EVM IMPORTANT NOTICE  
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:  
This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION  
PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided  
may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective  
considerations, including product safety measures typically found in the end product incorporating the goods.  
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic  
compatibility and therefore may not meet the technical requirements of the directive.  
Should this evaluation kit not meet the specifications indicated in the EVM Users Guide, the kit may be returned  
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE  
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,  
IMPLIED, OR STATUTORY, INCLUDING ANY 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 all claims arising from the handling or use of the goods. Please be aware that the products  
received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction  
of the product, it is the users responsibility to take 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 OTHER FOR 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 of patents or services described herein.  
Please read the EVM Users Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM  
Users Guide prior to handling the product. This notice contains important safety information about temperatures  
and voltages. For further safety concerns, please contact the TI application engineer.  
Persons handling the product must have electronics training and observe good laboratory practice standards.  
No license is granted under any patent right or other intellectual property right of TI covering or relating to any  
machine, process, or combination in which such TI products or services might be or are used.  
Mailing Address:  
Texas Instruments  
Post Office Box 655303  
Dallas, Texas 75265  
Copyright 2003, Texas Instruments Incorporated  
 
EVM WARNINGS AND RESTRICTIONS  
It is important to operate this EVM within the input voltage range of 15 V.  
Exceeding the specified input range may cause unexpected operation and/or irreversible  
damage to the EVM. If there are questions 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 the EVM. Please consult the EVM Users Guide prior to  
connecting any load to the EVM output. If there is uncertainty as to the load specification,  
please contact a TI field representative.  
During normal operation, some circuit components may have case temperatures greater than  
60°C. The EVM is designed to operate properly with certain components above 60°C as long  
as the input and output ranges are maintained. These components include but are not limited  
to linear regulators, switching transistors, pass transistors, and current sense resistors. These  
types of devices can be identified using the EVM schematic located in the EVM Users Guide.  
When placing measurement probes near these devices during operation, please be aware  
that these devices may be very warm to the touch.  
Mailing Address:  
Texas Instruments  
Post Office Box 655303  
Dallas, Texas 75265  
Copyright 2003, Texas Instruments Incorporated  
 
Preface  
Read This First  
About This Manual  
This users guide describes the characteristics, operation, and use of  
the following evaluation boards:  
- TLC3578 EVM Bipolar-Input, 8-channel 14-bit serial analog-to-digital  
converter  
- TLC3574 EVM Bipolar-Input, 4-channel 14-bit serial analog-to-digital  
converter  
- TLC3548 EVM Unipolar-Input, 8-channel 14-bit serial analog-to-digital  
converter  
- TLC3544 EVM Unipolar-Input, 4-channel 14-bit serial analog-to-digital  
converter  
- TLC2578 EVM Bipolar-Input, 8-channel 12-bit serial analog-to-digital  
converter  
- TLC2574 EVM Bipolar-Input, 4-channel 12-bit serial analog-to-digital  
converter  
A complete circuit description as well as schematic diagram and bill of  
materials is included. Contact the Product Information Center or e-mail  
[email protected] for questions regarding this EVM.  
How to Use This Manual  
This document contains the following chapters:  
- Chapter 1EVM Overview  
- Chapter 2Analog Interface  
- Chapter 3Digital Interface  
- Chapter 4Power Supply  
- Chapter 5Getting the Most From Your EVM  
- Chapter 6Bill of Materials, Board Layouts, and Schematic  
v
 
Trademarks  
FCC Warning  
This equipment is intended for use in a laboratory test environment only. It  
generates, uses, and can radiate radio frequency energy and has not been  
tested for compliance with the limits of computing devices pursuant to subpart  
J of part 15 of FCC rules, which are designed to provide reasonable protection  
against radio frequency interference. Operation of this equipment in other  
environments may cause interference with radio communications, in which  
case the user at his own expense will be required to take whatever measures  
may be required to correct this interference.  
Trademarks  
TI logo is a trademark of Texas Instruments.  
Related Documentation From Texas Instruments  
To obtain a copy of any of the following TI documents, call the Texas  
Instruments Literature Response Center at (800) 4778924 or the Product  
Information Center (PIC) at (972) 6445580. When ordering, please identify  
this booklet by its title and literature number. Updated documents can also be  
Data Sheets  
TLC3578  
TLC3574  
TLC2578  
TLC2574  
TLC3548  
TLC3544  
OPA132  
Literature Number  
SLAS262  
SLAS266  
PDS1309  
SBVS032  
REF3040  
REF3033  
vi  
 
Contents  
1
2
EVM Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
1.1  
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
Analog Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
Analog Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Signal Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Single Supply Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Physical Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
Reference Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
3
Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
3.1 Physical Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
4
5
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
Getting the Most From Your EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1  
5.1  
Additional Hardware Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
5.1.1 Stand-Alone EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
5.1.2 DSP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
5.1.3 MSP430 Microcontroller interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3  
6
Bill of Materials, Board Layouts, and Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1  
6.1  
6.2  
6.3  
Bill of Materials for EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2  
Board Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4  
EVM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7  
vii  
 
Figures  
21  
51  
52  
61  
62  
63  
64  
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
EVM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3  
DSK-To-EVM Stackup Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3  
Top Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4  
Internal Plane 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5  
Internal Plane 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5  
Bottom Layer (Mirrored) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6  
Tables  
21  
22  
23  
31  
41  
Analog Input Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
ADC Reference Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
Digital Signal Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
Power Connector Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
viii  
 
Chapter 1  
EVM Overview  
Each evaluation board is based on the equivalent ADC. All ADCs use a  
synchronous serial interface which can be simply interfaced to many micro-  
controllers using the SPI protocol.  
Each EVM also incorporates a stable voltage reference, and operational  
amplifier to ensure a low-noise voltage reference for the ADC.  
Topic  
Page  
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
1-1  
 
Features  
1.1 Features  
- Evaluation board featuring one of the following:  
J
J
J
J
J
J
TLC3578 ADC (order TLC3578 EVM)  
TLC3574 ADC (order TLC3574 EVM)  
TLC3548 ADC (order TLC3548 EVM)  
TLC3544 ADC (order TLC3544 EVM)  
TLC2578 ADC (order TLC2578 EVM)  
TLC2574 ADC (order TLC2574 EVM)  
- Onboard reference, with recommended buffer circuitry  
- Suggested signal conditioning circuitry for 1 channel only  
1-2  
 
Chapter 2  
Analog Interface  
Topic  
Page  
2.1 Analog Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
2.2 Signal Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
2.3 Single Supply Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
2.4 Physical Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
2.5 ADC Reference Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
2.6 Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
2-1  
 
Analog Interface Block Diagram  
2.1 Analog Interface Block Diagram  
Figure 2−1. Block Diagram  
Signal  
P1 / J1  
Conditioning  
TLC3578  
TLC3574  
TLC3548  
TLC3544  
TLC2578  
TLC2574  
The channels are arranged to comply with the EVM standard developed for  
data converters. This standard defines eight channels of analog I/O on each  
EVM module.  
2.2 Signal Conditioning  
The facility exists for the signal connected to channel 0 to be conditioned via  
an operational amplifier. The amplifier present on the EVM operates from a  
dual power supply and is configured with a gain of +1.  
If signal conditioning is not required, it can easily be bypassed via a shorting  
bar.  
2.3 Single Supply Operation  
Should the user wish to operate the amplifier from a single suply rail, this is also  
possible by simply removing the dual supply amplifier and replacing it with a  
suitable single supply alternative, for example the OPA353.  
The suggested procedure is detailed below:  
- Carefully desolder amplifier, U1  
- Replace with a suitable single-supply alternative, for example TI part num-  
ber OPA353UA  
- Install appropriate resistor at R9  
- Install appropriate capacitor at C11  
- Install shorting bar at W1  
2-2  
 
 
Physical Pinout Description  
2.4 Physical Pinout Description  
Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P  
provide a convenient 10-pin dual row header/socket combination at P1. This  
header/socket provides access to the analog input pins of the TLV2553/6.  
Consult Samtec at www.samtec.com or 1800SAMTEC9 for a variety of  
mating connector options.  
Table 21.Analog Input Pinout Description  
Pin Number  
Signal  
Description  
Header  
P1.2  
Socket  
J1.2  
CH0  
CH1  
CH2  
CH3  
CH4  
CH5  
CH6  
CH7  
REF−  
REF+  
Channel 0 input, can be direct from P1/J1 connector or through Op-Amp  
Channel 1 input, direct from P1/J1 connector  
Channel 2 input, direct from P1/J1 connector  
Channel 3 input, direct from P1/J1 connector  
Channel 4 input, direct from P1/J1 connector  
Channel 5 input, direct from P1/J1 connector  
Channel 6 input, direct from P1/J1 connector  
Channel 7 input, direct from P1/J1 connector  
External Reference negative input  
P1.4  
J1.4  
P1.6  
J1.6  
P1.8  
J1.8  
P1.10  
P1.12  
P1.14  
P1.16  
P1.18  
P1.20  
J1.10  
J1.12  
J1.14  
J1.16  
J1.18  
J1.20  
External Reference positive input  
2.5 Reference Voltage  
The accuracy of conversion from a SAR ADC depends directly upon the  
accuracy of the reference voltage. It is very important, therefore, that the  
reference be stable, accurate and low drift.  
The ADC reference pin presents a dynamic capacitive load to the amplifier.  
The voltage supplied to the ADC must be capable of driving this dynamic load  
properly, ensuring that the reference remain stable regardless of load.  
The bipolar and unipolar devices are specified to use a different voltage for the  
reference pin.  
Table 22.ADC Reference Voltage  
ADC  
Reference Voltage  
Bipolar input  
TLC3578  
3.3 V  
3.3 V  
3.3 V  
3.3 V  
TLC3574  
TLC2578  
TLC2574  
Unipolar input  
TLC3548  
4.096 V  
4.096 V  
TLC3544  
Analog Interface  
2-3  
 
Configuration Options  
2.6 Configuration Options  
There are a number of options available via shorting jumpers. These are  
detailed below:  
Table 23.Jumper Settings  
Factory Set  
Condition  
Position  
Optional Position  
2−3  
Reference  
Designator  
Description  
1−2  
W1  
W2  
W3  
W4  
W5  
W6  
W7  
W8  
W9  
W10  
Single supply operation  
Not installed  
Select negative supply for op amp  
Select positive supply for op amp  
Select signal source for channel 0  
Select positive voltage reference  
Select digital power  
Vs  
AGND (0 V)  
+Vs  
+Vcc (5 V)  
Signal is via op amp  
Onboard reference  
5 V  
Signal is directly from P1.2  
Reference via P1.18  
3.3 V  
Select negative voltage reference  
CSTART, initiate manual conversion  
FS mode  
Onboard reference  
Disabled  
Reference via P1.20  
Enabled  
Disabled  
Enabled  
Device always selected  
Disabled  
Enabled  
2-4  
 
Chapter 3  
Digital Interface  
The digital interface for the EVM is simply the appropriate digital signals from  
the ADC routed and presented to the 20-pin digital interface connector.  
Topic  
Page  
3.1 Physical Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
3-1  
 
Physical Pinout Description  
3.1 Physical Pinout Description  
The EVM is designed for easy interfacing to multiple platforms. Samtec part  
numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a  
convenient 10-pin dual row header/socket combination.  
This header/socket combination provides access to the digital control and  
serial data pins of the EVM. Consult Samtec at www.samtec.com or  
1800SAMTEC9 for a variety of mating connector options.  
Table 31.Digital Signal Pinout Description  
Pin Number  
Header Socket  
Signal  
Description  
P3.1  
J3.1  
CS  
Chip select selects the device for data transfer.  
Data transfer clock  
P3.3  
J3.3  
SCLK/CLKX  
Reserved  
FSX  
P3.5  
J3.5  
P3.7  
J3.7  
P3.9  
J3.9  
FSR  
P3.11  
P3.13  
P3.15  
P3.17  
P3.19  
J3.11  
J3.13  
J3.15  
J3.17  
J3.19  
SDI  
Serial data into the device  
SDO  
Serial data out of the device  
EOC or INT/EOC  
Reserved  
CSTART  
Selects either EOC or INT see data sheet for details.  
Control the beginning of a conversion  
Programmable as either EOC or INT  
3-2  
 
Chapter 4  
Power Supply  
The EVM accepts four power supplies.  
- A dual ± Vs dc supply for the dual-supply op-amps.  
- A single 5.0 V dc supply for the analog section of the ADC.  
- A single 3.3 V to 5 V dc supply for the digital section of the ADC.  
There are two ways to provide these voltages.  
- Hook-up the test points on the EVM. The test points are clearly labeled  
+Vdd (3.3 V to 5 V), +5VA, +Vs (up to 18 V depending upon the amplifiers)  
and Vs (up to 18 V depending upon the amplifiers).  
- Use the power connector P5/J5 and derive the voltages elsewhere.  
Table 41.Power Connector Pinout Description  
Signal  
P5/J5 Pin Number  
Signal  
VA  
+VA  
1
3
5
7
9
2
4
6
8
+5VA  
5VA  
DGND  
VD1  
AGND  
+1.8VD  
+3.3VD  
10  
+5VD  
4-1  
 
 
4-2  
 
Chapter 5  
Getting the Most From Your EVM  
A wide range of prototyping options and software solutions are available from  
TI, and offer additional flexibility, reducing your time-to-market. Hardware and  
software offerings from TI help you easily get from concept to hardware and  
software prototype.  
Topic  
Page  
5.1 Additional Hardware Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
5-1  
 
Additional Hardware Options  
5.1 Additional Hardware Options  
In general there are three hardware directions that the user can take with the  
EVM.  
5.1.1 Stand-Alone EVM  
The EVM can be used on its own. Using the EVM in this manner obliges the  
user to provide a custom digital interface between the EVM and a host system.  
Users are entirely responsible for ensuring proper timing requirements are met  
in addition to providing any glue logic necessary. Users must also provide the  
necessary analog interface and supply power to the EVM.  
5.1.2 DSP Interface  
Depending upon the DSP that the user chooses, there are a number of TI  
DSKs available. DSKs are DSP Starter Kits, and provide users with a DSP  
starter system. They contain all the necessary hardware and software to  
quickly begin prototype construction.  
For example, the TMS320C6711 DSP starter kit includes the DSK hardware,  
a parallel port cable to connect to a PC, a 5-V universal power supply, and a  
Code Composer Studio CD-ROM containing all the necessary software.  
Each family of DSKs provides different physical interface options. These  
interface options enable address, data, and control signals to be decoded and  
used by mezzanine-level cards (such as EVMs).  
To connect this EVM to any DSK requires selection of the correct interface  
card. Generally the procedure is outlined below.  
- Select the DSP you wish to use.  
- Select the appropriate DSK.  
- Select the suitable interface card.  
As an example, assume that the user wishes to use the TLC3578 EVM with  
the TMS320C6711 DSP, the steps that should be taken are shown below  
following a side-elevation of the boards required.  
5-2  
 
Additional Hardware Options  
Figure 51. EVM Selection  
TMS320C2000  
Interface Card  
TLC3574 EVM  
TMS320C3000  
Interface Card  
TMS320C6711  
DSP  
TMS320C6711  
DSK  
TLC3578 EVM  
TLC3544 EVM  
TMS320C5K / 6K  
Interface Card  
TLC3548 EVM  
TLC3578 EVM  
TLC3574 EVM  
1. Select DSP  
2. Select DSK  
3. Select Interface Card.  
Figure 52. DSK-To-EVM Stackup Diagram  
C5K / 6K  
Interface Card  
Evaluation Module Site  
Amplifier Site  
C5K / 6K  
Interface Card  
DSK  
80-Pin DSK Common Connector  
5.1.3 MSP430 Microcontroller interface  
TI also offer a range of low-power microcontrollers that have an SPI  
interface. You can check-out these devices and order evaluation  
modules at www.ti.com  
A microcomputer evaluation board exists, featuring the MSP430F449  
that also enables the ADC EVMs to be connected directly.  
The HPA449 evaluation board, available from Softbaugh  
www.softbaugh.com includes the following features:  
Getting the Most From Your EVM  
5-3  
 
5-4  
 
Chapter 6  
Bill of Materials, Board Layouts, and  
Schematic  
This chapter contains the EVM bill of materials, board layouts and schematics.  
Topic  
Page  
6.1 Bill of Materials for EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2  
6.2 Board Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3  
6.3 EVM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6  
6-1  
 
Bill of Materials for EVM  
6.1 Bill of Materials for EVM  
Item  
no.  
1
Qty  
1
Value  
0R  
Ref Des  
R19  
Description  
Vendor  
Part number  
Resistor, 01/16 W 5% Panasonic  
0402 SMD  
Resistor, 01/8 W 5%  
1206 SMD  
Resistor 101/8 W 5%  
1206 SMD  
ERJ2GE0R00X  
ERJ8GEY0R00V  
ERJ8GEYJ100V  
ERJ8GEYJ330V  
2
3
4
2
0R  
R8, R17  
R15  
Panasonic  
Panasonic  
1
10R  
33R  
9
R1, R2, R3,  
R4, R5, R6,  
R7, R12, R13  
R10, R11,  
R20, R21  
R16, R18  
Resistor, 331/8 W 5% Panasonic  
1206 SMD  
5
6
7
8
4
2
1
8
100R  
10 KΩ  
10 pF  
0.1 µF  
Resistor, 1001/8 W 5% Panasonic  
1206 SMD  
Resistor, 10k, 1/8 W  
5% 1206 SMD  
Capacitor, 10pF 50 V  
Ceramic chip, 0805 SMD  
ERJ8GEYJ101V  
ERJ8GEYJ103V  
ECJ2VC1H100D  
ECJ2VB1E104K  
Panasonic  
Panasonic  
Panasonic  
C3  
C1, C13, C15, Capacitor, .1µF 25 V  
C16, C20,  
C22, C23,  
C24  
Ceramic, X7R 0805  
9
8
27 nF  
C4, C5, C6,  
C7, C8, C9,  
C10, C14  
C18  
Capacitor, 27000pF 50 V, Panasonic  
Ceramic, X7R 0805  
ECJ2VB1H273K  
10  
11  
12  
1
1
4
1 µF  
10 µF  
10 µF  
Capacitor, 1ìF 10 V J  
Ceramic X5R 0805  
Capacitor, 10µF 16 V  
tantalum, TE series  
Capacitor, 10µF 16 V,  
VS electrolytic, SMD  
2pin header  
Panasonic  
Panasonic  
Panasonic  
ECJ2YB1A105K  
ECST1CX106R  
ECEV1CA100SR  
C17  
C2 C12 C19  
C21  
W1, W10  
W2, W3, W4, 3Pin header  
W5, W6, W7,  
13  
14  
2
8
Samtec  
Samtec  
TSW10207LS  
TSW10307LS  
W8, W9  
15  
16  
17  
18  
19  
20  
21  
1
1
4
4
3
2
1
P5  
J5  
10Pin header  
Samtec  
Samtec  
Samtec  
Samtec  
Fair-Rite  
TSM10501TDV−  
P
SSW10522FD−  
VSK  
TSM11001TDV−  
P
SSW11022FD−  
VSK  
2744044447  
10Socket strip  
P1 P2 P3 P4 20Pin header  
J1 J2 J3 J4  
20Socket strip  
FB1, FB2,  
FB3  
OPA132UA U1, U3  
FairRite SM beads  
#24−−44447  
IC, FETinput op amp,  
8SOIC  
IC voltage reference,  
3.33V LP SOT23  
Texas  
Instruments  
Texas  
OPA132UA  
REF3033 U2  
Instruments REF3033AIDBZT  
Contingent on  
Item 22  
REF3040 U2  
IC, voltage reference,  
4.096V, LP SOT23  
Texas  
Instruments  
REF3040AIDBZT  
6-2  
 
Bill of Materials for EVM  
22  
1
Alternate  
Alternate  
Alternate  
Alternate  
Alternate  
2
TLC3578  
TLC3574  
TLC3548  
TLC3544  
TLC2578  
TLC2574  
U4  
U4  
U4  
U4  
U4  
U4  
IC, A/D 8CH, 14BIT,  
LP 24TSSOP  
IC, A/D, 4Ch, 14bit  
LP 20TSSOP  
IC, Unipolar A/D 8CH  
24SOIC  
IC, Unipolar A/D 4CH  
20SOIC  
IC, Serial out A/D 8CH  
24SOIC  
IC, Serial out A/D 4CH  
20TSSOP  
Single IC buffer driver  
with open drain o/p  
TLC3578 Rev A PWB  
Texas  
Instruments  
Texas  
Instruments  
Texas  
Instruments  
Texas  
Instruments  
Texas  
Instruments  
Texas  
Instruments  
Texas  
Instruments  
Texas  
Instruments  
Keystone  
Electronics  
Cambion  
*
TLC3578IPW  
TLC3574IPW  
TLC3548IPW  
TLC3544IPW  
TLC2578IPW  
TLC2574IPW  
SN74LVC1G07DBVR  
6448024  
23  
24  
25  
26  
SN74LVC1 U5, U6  
G07  
1
4
TP_.025  
+5VA, +VA,  
VA, Vdd  
Test Point Single .025”  
Pin  
5000  
2
1
TP_turret AGND, DGND Turret terminal test point  
18073370205  
*
Not  
Installed  
Not  
R14  
C11  
R9  
*
*
*
1
1
*
*
*
*
Installed  
Not  
Installed  
Bill of Materials, Board Layouts, and Schematic  
6-3  
 
Board Layouts  
6.2 Board Layouts  
Figure 61. Top Layer  
6-4  
 
Board Layouts  
Figure 62. Internal Plane 1  
Figure 63. Internal Plane 2  
Bill of Materials, Board Layouts, and Schematic  
6-5  
 
Board Layouts  
Figure 64. Bottom Layer (Mirrored)  
6-6  
 
EVM Schematic  
6.3 EVM Schematic  
The EVM schematic is a PDF attachment following this page.  
Bill of Materials, Board Layouts, and Schematic  
6-7  
 
1
2
3
4
5
6
Revision History  
ECN Number  
REV  
Approved  
D
C
B
A
D
C
B
A
P1  
TLC3578  
TLC3578.sch  
P3  
CH0  
CH1  
CH2  
CH3  
CH4  
CH5  
CH6  
CH7  
REF-  
REF+  
CS*  
1
3
5
7
9
2
4
1
3
5
7
9
2
4
CLKX  
6
6
R17  
0R  
FSX  
8
8
FSR  
10  
12  
14  
16  
18  
20  
10  
12  
14  
16  
18  
20  
DATA_IN  
B_DATA_OUT  
B_INT*/EOC  
11  
11  
13  
15  
17  
19  
13  
15  
17  
19  
GPIO_1  
DGND  
AGND  
PWR & REF  
PWR & REF.sch  
ti  
6448025  
12500 TI Boulevard. Dallas, Texas 75243  
Title:  
TLC3578 EVM Block Diagram  
Engineer:  
Drawn By:  
FILE:  
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Joe Purvis  
DOCUMENTCONTROL #  
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TLC3578 EVM Block Diagram  
1
2
3
4
5
6
 
1
2
3
4
5
6
Revision History  
ECN Number  
REV  
Approved  
GPIO_1  
FSX  
DVdd  
W10  
FS  
CS*  
CSTART*  
W8  
DVdd  
D
C
B
A
D
C
B
A
C11  
W9  
W1  
R18  
10K  
R9  
DGND  
R16  
10K  
Not Installed  
Not Installed  
R8  
0R  
AGND  
CH0  
Amplifier +Supply  
+5V_s  
W4  
R12  
33R  
DVdd  
C14  
27nF  
2
U1  
-In  
6
Output  
U4  
DVdd  
DVdd  
CH0  
3
+In  
AGND  
9
10  
11  
12  
13  
14  
15  
16  
8
CS*  
FS  
AIN0  
AIN1  
AIN2  
AIN3  
AIN4  
AIN5  
AIN6  
AIN7  
CS*  
FS  
R20  
100R  
R21  
100R  
2
R13  
Amplifier -Supply  
1
BCLK  
CLKX  
SCLK  
SDI  
33R  
3
DATA_IN  
DATA_OUT  
CSTART*  
U6A  
5
2
4
B_DATA_OUT  
SDO  
A
Y
R7  
CH1  
CH2  
CH3  
CH4  
CH5  
24  
CSTART*  
U5A  
SN74LVC1G07  
B_INT*/EOC  
33R  
R2  
CH6  
C10  
27nF  
4
INT*/EOC2  
4
33R  
INT* / EOC  
A
Y
C5  
27nF  
AGND  
SN74LVC1G07  
19  
REF_P  
REF_M  
REFP  
AGND  
R6  
21  
COMP  
33R  
R1  
C9  
CH7  
20  
REFM  
27nF  
33R  
C20  
TLC3578  
C4  
27nF  
0.1uF  
AGND  
R5  
AGND  
33R  
C8  
27nF  
AGND  
DGND  
AGND  
R4  
33R  
C7  
27nF  
AGND  
REF+  
R3  
W5  
33R  
REF_P  
REF_M  
C6  
27nF  
VREF+  
REF-  
C15  
0.1uF  
C18  
1uF  
+
C17  
AGND  
10uF  
W7  
ti  
6448025  
AGND  
12500 TI Boulevard. Dallas, Texas 75243  
TLC3578  
Title:  
Engineer:  
Drawn By:  
FILE:  
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Joe Purvis  
DOCUMENTCONTROL #  
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DATE:  
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TLC3578.sch  
 
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2
3
4
5
6
Revision History  
ECN Number  
REV  
Approved  
U5B  
U6B  
1
5
DVdd  
1
5
DVdd  
NC Vcc  
NC Vcc  
C23  
C24  
DGND3  
DGND3  
GND  
GND  
0.1uF  
0.1uF  
+5VA  
D
C
B
A
D
C
B
A
SN74LVC1G07  
SN74LVC1G07  
FB3  
FB2  
+5VA  
+5V_s  
+V_s  
C16  
C19  
10uF  
+
W3  
Amplifier +Supply  
0.1uF  
+VA  
AGND  
AGND  
+VA  
+3.3V_D  
C13  
C12  
10uF  
+
Vdd  
0.1uF  
W6  
R15  
10R  
DVdd  
P5  
-VA  
+5V_D  
FB1  
-VA  
-V_s  
C1  
C2  
10uF  
W2  
+
C22  
C21  
10uF  
+
Amplifier -Supply  
0.1uF  
0.1uF  
AGND  
AGND  
DGND  
R11  
R19  
0R  
100R  
C3  
R14  
Not Installed  
10pF  
AGND  
DGND  
Amplifier +Supply  
AGND  
DGND  
2
3
-In  
U3  
R10  
U2  
6
VREF+  
Output  
100R  
+5V_s  
1
2
IN  
OUT  
+In  
3
GND  
REF3040  
P2  
P4  
Amplifier -Supply  
1
2
4
1
2
4
AGND  
3
3
5
6
5
6
7
8
7
8
9
10  
12  
14  
16  
18  
20  
9
10  
12  
14  
16  
18  
20  
11  
13  
15  
17  
19  
11  
13  
15  
17  
19  
ti  
12500 TI Boulevard. Dallas, Texas 75243  
TLC3578 EVM Power & Reference  
Title:  
Engineer:  
Drawn By:  
FILE:  
Joe Purvis  
Joe Purvis  
PWR & REF.sch  
DOCUMENTCONTROL #  
REV:  
6448025  
2
DATE:  
SIZE:  
6
21-Aug-2003  
SHEET:  
3
OF:  
3
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2
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