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DAC11001A_V01 Datasheet(Hoja de datos) 36 Page - Texas Instruments

No. de Pieza. DAC11001A_V01
Descripción  DACx1001 20-Bit, 18-Bit, and 16-Bit, Low-Noise, Ultra-Low Harmonic Distortion, Fast-Settling, High-Voltage Output, Digital-to-Analog Converters (DACs)
Descarga  42 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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 36 page
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AVDD1
AVDD2
VSS
VCC
AGND
PLA NE
DGND
PLA NE
AGND-OUT
PLA NE
IOVDD
DVDD
IOVDD
DAC_OUT
REFRE NCE
INP UTS
EMBEDDED
RESISTORS
AGND-OUT an d
AGND sho rt
AGND and
DGND short
DIG ITAL
SIGNALS
DIG ITAL
SIGNALS
POWE R INPUT
DAC110 01
IOVDD
36
DAC11001A, DAC91001, DAC81001
SLASEL0 – OCTOBER 2019
www.ti.com
Product Folder Links: DAC11001A DAC91001 DAC81001
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Copyright © 2019, Texas Instruments Incorporated
11 Layout
11.1 Layout Guidelines
PCB layout plays a significant role for achieving desired ac and dc performance from the DACx1001. The
DACx1001 has a pinout that supports easy splitting of the noisy and quiet grounds. The digital signals are
available on two adjacent sides of the device; whereas, the power and analog signals are available separate
sides. Figure 29 shows an example layout, where the different ground planes have been clearly demarcated. The
figure also shows the best positions for the single-point shorts between the ground planes. For best power-
supply bypassing, place the bypass capacitors close to the respective power pins as shown. Provide unbroken
ground reference planes for the digital signal traces, especially for the SPI and LDAC signals.
11.2 Layout Example
Figure 29. Layout Example




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