Typical Performance Characteristics; Changes To Typical Performance Characteristics - Analog Devices AD9912 Manual

AD9912

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD, AVDD3, and DVDD at nominal supply voltage; DAC R
phase noise used for generating these plots.
–50
–55
–60
–65
–70
–75
–80
0 100 200
OUTPUT FREQUENCY (MHz)
Figure 3. Wideband SFDR vs. Output Frequency at −40°C, +25°C, and +85°C,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
–50
–55
–60
–65
–70
–75
–80
0 100 200
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
0 100 200
FREQUENCY (MHz)
Figure 5. Wideband SFDR at 20.1 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
+25°C
–40°C
+85°C
300 400 500
HIGH V
DD
NORMAL V
DD
LOW V
DD
300 400 500
CARRIER: 20.1MHz
SFDR: –79dBc
FREQ. SPAN: 500MHz
RESOLUTION BW: 3kHz
VIDEO BW: 10kHz
300 400 500
Rev. D | Page 10 of 40
= 10 kΩ, unless otherwise noted. See Figure 26 for 1 GHz reference
SET
10
0
–10
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–40
–50
–60
–70
–80
–90
–100
0
Figure 6. Wideband SFDR at 98.6 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
Figure 7. Wideband SFDR at 201.1 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
10
CARRIER:
0
SFDR:
FREQ. SPAN:
–10
RESOLUTION BW:
VIDEO BW:
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
Figure 8. Wideband SFDR at 398.7 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
CARRIER:
SFDR:
FREQ. SPAN:
RESOLUTION BW:
VIDEO BW:
100 200 300
FREQUENCY (MHz)
CARRIER:
SFDR:
FREQ. SPAN:
RESOLUTION BW:
VIDEO BW:
100 200 300
FREQUENCY (MHz)
398.7MHz
–59dBc
500MHz
3kHz
10kHz
100 200 300
FREQUENCY (MHz)
98.6MHz
–67dBc
500MHz
3kHz
10kHz
400 500
201.1MHz
–61dBc
500MHz
3kHz
10kHz
400 500
400 500