Analog Devices AD9912, Manual

Page: 11 / 40

AD9912
Rev. D | Page 11 of 40
06763-
009
19.85 19.95 20.05 20.15 20.25 20.35
FREQUENCY (MHz)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
S
IG
NAL
P
O
W
E
R (
d
Bm)
20.1MHz
–95dBc
500kHz
300Hz
1kHz CARRIER:
SFDR:
FREQ. SPAN:
RESOLUTION BW:
VIDEO BW:
Figure 9. Narrow-Band SFDR at 20.1 MHz,
SYSCLK = 1 GHz (SYSCLK PLL Bypassed)
06763-
010
200.85 200.95 201.05 201.15 201.25 201.35
FREQUENCY (MHz)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
S
IG
NAL
P
O
W
E
R (
d
Bm)
201.1MHz
–91dBc
500kHz
300Hz
1kHz CARRIER:
SFDR:
FREQ. SPAN:
RESOLUTION BW:
VIDEO BW:
Figure 10. Narrow-Band SFDR at 201.1 MHz,
SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed)
06763-
011
398.45 398.55 398.65 398.75 398.85 398.95
FREQUENCY (MHz)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
S
IG
NAL
P
O
W
E
R (
d
Bm)
398.7MHz
–86dBc
500kHz
300Hz
1kHz CARRIER:
SFDR:
FREQ. SPAN:
RESOLUTION BW:
VIDEO BW:
Figure 11. Narrow-Band SFDR at 398.7 MHz,
SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed)
06763-
012
100 1k 10k 100k 1M 10M 100M
FREQUENCY OFFSET (Hz)
–80
–90
–100
–110
–120
–130
–140
–150
–160
PH
A
SE N
O
ISE (d
B
c
/H
z)
399MHz
99MHz
RMS JITTER (100Hz TO 40MHz):
99MHz:
399MHz:
413fs
222fs
Figure 12. Absolute Phase Noise Using HSTL Driver,
SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed)
06763-
013
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY OFFSET (Hz)
–80
–90
–100
–110
–120
–130
–140
–150
–160
PH
A
SE N
O
ISE (d
B
c
/H
z)
399MHz
99MHz
RMS JITTER (12kHz TO 20MHz):
99MHz:
399MHz:
0.98ps
0.99ps
Figure 13. Absolute Phase Noise Using HSTL Driver,
SYSCLK = 1 GHz (SYSCLK PLL Driven by Rohde & Schwarz SMA100 Signal
Generator at 83.33 MHz )
06763-
014
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY OFFSET (Hz)
–80
–90
–100
–110
–120
–130
–140
–150
–160
PH
A
SE N
O
ISE (d
B
c
/H
z)
399MHz
99MHz
RMS JITTER (12kHz TO 20MHz):
99MHz:
399MHz:
1.41ps
1.46ps
Figure 14. Absolute Phase Noise Using HSTL Driver,
SYSCLK = 1 GHz (SYSCLK PLL Driven by Rohde & Schwarz SMA100 Signal
Generator at 25 MHz )