AD9912 データシートの表示（PDF） - Analog Devices
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AD9912 Datasheet PDF : 40 Pages
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AD9912
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD, AVDD3, and DVDD at nominal supply voltage; DAC RSET = 10 kΩ, unless otherwise noted. See Figure 26 for 1 GHz reference
phase noise used for generating these plots.
–50
–55
–60
–65
–70
+25°C
–75
–40°C
+85°C
–80
0
100
200
300
400
500
OUTPUT FREQUENCY (MHz)
Figure 3. Wideband SFDR vs. Output Frequency at −40°C, +25°C, and +85°C,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
CARRIER:
98.6MHz
SFDR:
–67dBc
FREQ. SPAN:
500MHz
RESOLUTION BW: 3kHz
VIDEO BW:
10kHz
100
200
300
400
500
FREQUENCY (MHz)
Figure 6. Wideband SFDR at 98.6 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
–50
–55
–60
–65
–70
HIGH VDD
–75
NORMAL VDD
LOW VDD
–80
0
100
200
300
400
500
OUTPUT FREQUENCY (MHz)
Figure 4. Variation of Wideband SFDR vs. Frequency over DAC Power Supply
Voltage, SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
CARRIER:
201.1MHz
SFDR:
–61dBc
FREQ. SPAN:
500MHz
RESOLUTION BW: 3kHz
VIDEO BW:
10kHz
100
200
300
400
500
FREQUENCY (MHz)
Figure 7. Wideband SFDR at 201.1 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
CARRIER:
20.1MHz
SFDR:
–79dBc
FREQ. SPAN:
500MHz
RESOLUTION BW: 3kHz
VIDEO BW:
10kHz
100
200
300
400
500
FREQUENCY (MHz)
Figure 5. Wideband SFDR at 20.1 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
10
0
CARRIER:
SFDR:
398.7MHz
–59dBc
–10
FREQ. SPAN:
500MHz
RESOLUTION BW: 3kHz
–20 VIDEO BW:
10kHz
–30
–40
–50
–60
–70
–80
–90
–100
0
100
200
300
400
500
FREQUENCY (MHz)
Figure 8. Wideband SFDR at 398.7 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
Rev. F | Page 11 of 40
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