Breakout board for the DAC900E a 165 MSPS @ 10 Bit DAC

This is the PCB design for the DAC900E [1] from Texas Instruments, a 165 MSPS DAC with 10 bits resolution.

The design is mainly based on the schematic from the example given in the datasheet.

This breakout board connects to the DE0 Evaluation board from ALTERA.

As a transformer a Mini Circuit ADT1-1WT [2] is used.

The schematic looks the following:
DAC900E_Schematic

The board design looks like:

DAC900E_Board DAC900E_PCB

It should be noted that Analog and Digital ground are separated.

The DAC was tested with an oscilloscope. The clock frequency of the DAC is 160 MHz and a sine wave is generated.
The oscilloscope is terminated with 50 Ohm. A 10 MHz sine wave is generated.

The left screenshot shows the wave from the DAC directly connected. In the right picture a reconstruction filter @ 15 MHz is connected between the DAC and the scope in order to remove higher frequencies. The wave gets very smooth. Good precision in frequency is achieved.

DAC900E_10MHzSineWith160MSPS_NoRecoFilter DAC900E_10MHzSineWith160MSPS_WithRecoFilter
Function GPIO Pin DE0 GPIO1 Pin No
DAC_BIT9 GPIO_D0 AA20
DAC_BIT8 GPIO_D1 AB20
DAC_BIT7 GPIO_D2 AA19
DAC_BIT6 GPIO_D3 AB19
DAC_BIT5 GPIO_D4 AB18
DAC_BIT4 GPIO_D5 AA18
DAC_BIT3 GPIO_D6 AA17
DAC_BIT2 GPIO_D7 AB17
DAC_BIT1 GPIO_D8 Y17
DAC_BIT0 GPIO_D9 W17
DAC_CLK GPIO_CLKOUT0 R16

The design files can be downloaded from GitHub
https://github.com/digibird1/DAC900E

It can be checked out with:
git clone https://github.com/digibird1/DAC900E

[1] http://www.ti.com/lit/ds/symlink/dac900.pdf
[2] http://www.minicircuits.com/pdfs/ADT1-1WT.pdf

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