Datasheet
AD9524 Data Sheet
Rev. D | Page 16 of 56
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 200
400 600
800
1000 1200
DIFFERENTIAL SWING (V p-p)
FREQUENCY (MHz)
LVDS = 3.5m
A
L
VDS = 7mA
09081-009
Figure 9. Differential Voltage Swing vs. Frequency;
LVDS Mode, 7 mA and 3.5 mA
0
100
200
300
400
500
AMPLITUDE (V)
FREQUENCY (MHz)
20pF
2pF
10pF
09081-010
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.1
3.3
3.5
Figure 10. Amplitude vs. Frequency and Capacitive Load;
CMOS Mode, 2 pF, 10 pF, and 20 pF
CH1
200mV 2.5ns/DIV
40.0GS/s
A CH1 104mV
1
09081-013
Figure 11. Output Waveform (Differential), LVPECL at 122.88 MHz
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
100 1k 10k 100k 1M
10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
1: 100Hz, –85.0688dBc/Hz
2: 1kHz, –113.3955dBc/Hz
3: 8kHz, –125.8719dBc/Hz
4: 16kHz, –129.5942dBc/Hz
5: 100kHz, –134.5017dBc/Hz
6: 1MHz, –145.2872dBc/Hz
7: 10MHz, –156.2706dBc/Hz
8: 40MHz, –157.4153dBc/Hz
x: START 12kHz
STOP 80MHz
CENTER 40.006MHz
SPAN 79.988MHz
NOISE:
ANALYSIS RANGE X: BAND MARKER
ANALYSIS RANGE Y: BAND MARKER
INTG NOISE: –75.94595dBc/39.99MHz
RMS NOISE: 225.539µRAD
12.9224mdeg
RMS JITTER: 194.746fsec
RESIDUAL FM: 2.81623kHz
1
3
5
7
09081-015
Figure 12. Phase Noise, Output = 184.32 MHz
(VCXO = 122.88 MHz, Crystek VCXO CVHD-950)
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
100 1k 10k 100k 1M 10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
1: 100Hz, –89.0260dBc/Hz
2: 1kHz, –116.9949dBc/Hz
3: 8kHz, –129.5198dBc/Hz
4: 16kHz, –133.3916dBc/Hz
5: 100kHz, –137.7680dBc/Hz
6: 1MHz, –148.3519dBc/Hz
7: 10MHz, –158.3307dBc/Hz
8: 40MHz, 159.1629–dBc/Hz
x: START 12kHz
STOP 80MHz
CENTER 40.006MHz
SPAN 79.988MHz
NOISE:
ANALYSIS RANGE X: BAND MARKER
ANALYSIS RANGE Y: BAND MARKER
INTG NOISE: –78.8099dBc/39.99MHz
RMS NOISE: 162.189µRAD
9.29276mdeg
RMS JITTER: 210.069fsec
RESIDUAL FM: 2.27638kHz
1
3
5
7
09081-016
Figure 13. Phase Noise, Output = 122.88 MHz
(VCXO = 122.88 MHz, Crystek VCXO CVHD-950; Doubler Is Off)
CH1 500mV Ω 2.5ns/DIV
40.0GS/s
A CH1 80mV
1
09081-017
Figure 14. Output Waveform (Differential), HSTL at 16 mA, 122.88 MHz