AD9957/PCBZ Analog Devices Inc, AD9957/PCBZ Datasheet - Page 14

• Manufacturer Part Number: AD9957/PCBZ
• Description: D/A Converter Evaluation Board
• Manufacturer: Analog Devices Inc
• Series: AgileRF™r

Specifications of AD9957/PCBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: Direct Digital Synthesizer
• Kit Application Type: Clock & Timing
• Silicon Core Number: AD9957
• Kit Contents: Board
• Main Purpose: Timing: DDS Modulators
• Embedded: No
• Utilized Ic / Part: AD9957
• Primary Attributes: 14-Bit DAC, 32-Bit Tuning Word Width
• Secondary Attributes: 1GHz, Graphical User Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9957
Figure 18. SFDR vs. Output Frequency and Supply (±5%) in Single Tone
Figure 17. Wideband SFDR vs. Output Frequency in Single Tone Mode,
Figure 19. SFDR vs. Frequency and Temperature in Single Tone Mode,
–50
–55
–60
–65
–70
–75
–45
–50
–55
–60
–65
–70
–75
–50
–55
–60
–65
–70
–75
0
0
0
50
50
SFDR WITHOUT PLL
50
PLL with REFCLK = 15.625 MHz × 64
100
100
100
Mode, REFCLK = 1 GHz
REFCLK = 1 GHz
FREQUENCY OUT (MHz)
150
FREQUENCY OUT (MHz)
150
FREQUENCY OUT (MHz)
150
HIGH SUPPLY
200
200
200
+85°C
250
250
–40°C
LOW SUPPLY
250
300
300
SFDR WITH PLL
300
350
350
350
400
400
400
450
450
Rev. B | Page 14 of 64
REFCLK = 50 MHz with 20x Multiplication, System Clock = 1 GHz
–100
–110
–120
–130
–140
–150
–160
–170
–100
–110
–120
–130
–140
–150
–160
Figure 21. Residual Phase Noise Using the REFCLK Multiplier,
1200
1000
Figure 22. Power Dissipation vs. System Clock (PLL Disabled)
–90
–90
800
600
400
200
Figure 20. Residual Phase Noise, System Clock = 1 GHz
0
100
10
10
f
OUT
f
OUT
200
= 20.1MHz
100
100
= 20.1MHz
300
SYSTEM CLOCK FREQUENCY (MHz)
1k
1k
f
OUT
FREQUENCY OFFSET (Hz)
FREQUENCY OFFSET (Hz)
400
f
= 397.8MHz
OUT
f
10k
10k
OUT
500
= 201.1MHz
f
OUT
= 397.8MHz
f
OUT
= 201.1MHz
600
100k
100k
AVDD 1.8V
AVDD 3.3V
DVDD 3.3V
DVDD 1.8V
= 98.6MHz
700
f
OUT
1M
1M
= 98.6MHz
800
10M
10M
900
100M
100M
1000