AD9958/PCBZ Analog Devices Inc, AD9958/PCBZ Datasheet - Page 20

• Manufacturer Part Number: AD9958/PCBZ
• Description: BOARD EVALUATION FOR AD9958
• Manufacturer: Analog Devices Inc
• Series: AgileRF™r

Specifications of AD9958/PCBZ

• Design Resources: Low Jitter Sampling Clock Generator for High Performance ADCs Using AD9958/9858 and AD9515 (CN0109) Phase Coherent FSK Modulator (CN0186)
• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Embedded: No
• Utilized Ic / Part: AD9958
• Primary Attributes: 10-Bit DAC, 32-Bit Tuning Word Width
• Secondary Attributes: 500MHz, Graphical User Interface, 2-Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9958/PCB
The Chip Level Control window (Figure 41) from this particular setup shows that a 500 MHz System Clock is running, and that a 16-
level modulation-no RU/RD is being performed. Notice the Level list located in Modulation Configuration. The PPC Bit pattern in the
Profile Pin Config of Modulation Configuration is <010>. Referring to the table in the 16-Level Modulation—No RU/RD section of the
AD9958 data sheet, you see that this bit pattern sets up 16-level modulation on Channel 0.
In the Channel Control window (Figure 42), Channel 0 has Frequency selected as its modulation output as shown in the Modulation
Output Type list. As discussed in the Channel Constraint Guidelines section of the AD9958 data sheet, when performing 16-level
modulation on a selected channel, all other channels are available only for the single tone mode of operation.
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Figure 41.
Figure 42.