Linear Technology LTC2376-20 Скачать руководство пользователя страница 12

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dc1925af

DEMO MANUAL DC1925A

Linear Technology  Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417  

(408) 432-1900 

 

FAX

: (408) 434-0507 

 

www.linear.com

 

LINEAR TECHNOLOGY CORPORATION 2013

LT 0413 • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT 

OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete 

in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety 

measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union 

directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual 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 THE 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. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR 

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims 

arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all 

appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or 

agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance, 

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and 

observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Copyright © 2004, Linear Technology Corporation

Содержание LTC2376-20

Страница 1: ...LTC2378 20 in conjunction with the DC590 QuikEval and DC890 PScope data collection boards Use the DC590 to demonstrate DC performance such as L LT LTC LTM Linear Technology and the Linear logo are registered trademarks and QuikEval and PScope are trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners BOARD PHOTO Figure 1 DC1925A Connection Diag...

Страница 2: ...te that J1 has a 50Ω termination resistor to ground Run the PScope software PScope exe version K73 or later supplied with the DC890 or download it from www linear com software Complete software documentation is available from the Help menu Updates can be downloaded from the Tools menu Check for updates periodically as new features may be added The PScope software should recognize the DC1925A and c...

Страница 3: ...ssing is desired Alternatively the data can be fed directly into an application circuit Use Pin 50 of P1 to latch the data The data can be latched using either edge of this signal The data output signal levels at P1 can also be changed to 0V to 3 3V if the application circuit requires a higher voltage This is accomplished by moving VCCIO JP3 to the 3 3V position Reference The default reference is ...

Страница 4: ...on is feeding the converter with a frequency that is a sub multiple of the sample rate and which will only exercise a small subset of the possible output codes The proper methodistopickanM Nfrequencyfortheinputsinewave frequency N is the number of samples in the FFT M is a prime number between one and N 2 Multiply M N by the sample rate to obtain the input sine wave frequency Another scenario that...

Страница 5: ...8 20 component selection is important so as to not degrade performance Resistors should have low values to minimize noise and distortion Metal film resistors are recommended to reduce distortion caused by self heating Because of their low voltage coefficients to further reduce distortion NPO or silver mica capacitors should be used Any buffer used to drive the LTC2378 20 should have low distortion...

Страница 6: ...6 dc1925af DEMO MANUAL DC1925A DC1925A SETUP Figure 6 QuikEval Screen Shot ...

Страница 7: ...differential mode is enabled and the inputs are AC coupled VREF 2 is the default setting JP5 V Selects 3 6V or ground for V The default set ting is 3 6V Setting V to ground is useful for evaluating single supply operation of the buffer when operating the ADC with Digital Gain Compression turned on JP6 FS selects whether the Digital Gain Compression is on or off In the VREF position Digital Gain Co...

Страница 8: ...VX 06036D475MAT2A 17 7 E1 E2 E3 E4 E5 E9 E10 TEST POINT TURRET 0 061 MILL MAX 2308 2 00 80 00 00 07 0 18 3 E6 E7 E8 TESTPOINT TURRET 0 094 PBF MILL MAX 2501 2 00 80 00 00 07 0 19 8 JP1 JP8 HEADER 3 PIN SINGLE ROW 0 100 SAMTEC TSW 103 07 L S 20 3 J1 J2 J4 CONNECTOR BNC CONNEX 112404 21 1 J3 CONN HEADER 14 POS 2MM VERT GOLD MOLEX 87831 1420 22 1 J5 HEADER 2X5 0 100 SAMTEC TSW 105 07 L D 23 4 MH1 MH2...

Страница 9: ... IC SERIAL EEPROM TSSOP MICROCHIP 24LC024 I ST 52 2 U8 U9 IC UHS INVERTER SC70 5 FAIRCHILD NC7SZ04P5X 53 2 U10 U18 IC DUAL OP AMP MS8 LINEAR TECH LT6203CMS8 PBF 54 1 U11 IC MAX II CPLD TQFP100 ALTERA EPM240GT100C5N 55 1 U12 IC MICROPOWER REGULATOR SO 8 LINEAR TECH LT1763CS8 1 8 PBF 56 2 U13 U16 IC MICROPOWER REGULATOR SO 8 LINEAR TECH LT1763CS8 PBF 57 1 U14 IC MICROPOWER REGULATOR SO 8 LINEAR TECH...

Страница 10: ...10 dc1925af DEMO MANUAL DC1925A SCHEMATIC DIAGRAM ...

Страница 11: ...logy Corporation is believed to be accurate and reliable However noresponsibilityisassumedforitsuse LinearTechnologyCorporationmakesnorepresenta tion that the interconnection of its circuits as described herein will not infringe on existing patent rights SCHEMATIC DIAGRAM ...

Страница 12: ...UDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of the goo...

Страница 13: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC1925A B DC1925A A DC1925A C ...

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