AD9642-250EBZ Analog Devices, AD9642-250EBZ Datasheet - Page 11

• Manufacturer Part Number: AD9642-250EBZ
• Description: Data Conversion IC Development Tools 14 Bit 250 Msps 1.8V ADC
• Manufacturer: Analog Devices
• Type: ADCr
• Series: AD9642r

Specifications of AD9642-250EBZ

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: AD9642-250
• Interface Type: SPI, USB
• Operating Supply Voltage: 6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Current: 2 A
• Factory Pack Quantity: 1
• For Use With: HSC-ADC-EVALCZ

Evaluation Board User Guide
Adjusting the Amplitude of the Input Signal
The next step is to adjust the amplitude of the input signal for
each channel as follows:
1.
2.
3.
Adjust the amplitude of the input signal so that the fundamen-
tal is at the desired level. (Examine the Fund Power reading
in the left panel of the VisualAnalog Graph window.) See
Figure 15.
Repeat this procedure for Channel B if desired.
Click the Save disk icon within the Graph window to save
the performance plot data as a .csv formatted file. See
Figure 14 for an example.
Figure 15. Graph Window of VisualAnalog (AD9642)
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–100
–120
–140
–20
–40
–60
–80
0
0
250MSPS
90.1MHz @ –1dBFS
SNR = 71dB (72dBFS)
SFDR = 89dBc
25
THIRD HARMONIC
Figure 14. Typical FFT,
FREQUENCY (MHz)
SECOND HARMONIC
50
75
AD9642
100
UG-386
125