National Semiconductor DAC5682Z, Руководство пользователя

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Optional Configurations
27 SLWU055A – May 2008 – Revised May 2016
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Revision History
9.4 Baseband Filter
The TSW3070EVM has been designed to allow a fifth-order differential LC filter. The filter for the OPA695
is a fifth-order, low-pass filter with a corner at 200 MHz. This filter was designed with a 25-
Ω source and
termination impedance to account for the DAC load and the operational amplifier input. The THS3091 and
THS3095 filters are a fifth-order, low-pass filter with a corner at 100 MHz. This filter was designed with a
50-
Ω impedance in mind. These filters can only be modified by bearing in mind the design of the DAC
termination and operational amplifier configuration. Both outputs of the amplifiers are intended to drive 50-
Ω test equipment.
10 Schematic, Bill of Materials and Printed-Circuit Board Layout
The TSW3070EVM schematic, bill of materials, and board CAD design files can be found on the provided
compact disc.
10.1 Design Resources
TSW3070EVM
Product Folder
CDCM7005 Product Folder
DAC5682Z Product Folder
OPA695 Product Folder
THS3091 Product Folder
THS3095 Product Folder
TPS5430 Product Folder
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (May 2008) to A Revision ........................................................................................................... Page
• Changed the first sentence of Section 6.4
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18
• Deleted text "Plug in the 6-Vdc wall plug." and Added list items to Section 8.2
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23
• Added Section 10.1
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