TYPICAL PERFORMANCE CHARACTERISTICS
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
–180
100
CARRIER 622.080005MHz 0.8813dBm
RMS JITTER:
0.827ps (12kHz TO 20MHz)
0.618ps (50kHz TO 80MHz)
1k
10k
100k
1M
10M
FREQUENCY OFFSET FROM CARRIER (Hz)
100M
Figure 4. Phase Noise, Fractional-N
(fIN = 622.08 MHz, fOUT1 = 622.08 MHz, fXTAL = 26 MHz)
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
–180
100
CARRIER 622.080027MHz 0.5414dBm
RMS JITTER:
1.336ps (12kHz TO 20MHz)
0.463ps (50kHz TO 80MHz)
1k
10k
100k
1M
10M
FREQUENCY OFFSET FROM CARRIER (Hz)
100M
Figure 5. Phase Noise, 19.44 MHz Mode, Fractional-N
(fIN = 19.44 MHz, fOUT1 = 622.08 MHz, fXTAL = 52 MHz)
5
0
–5
–10
–15
–20
–25
1.0
0.5
–30
0
–0.5
–35 –1.0
10
100
–40
10
100
1k
10k
FREQUENCY OFFSET (Hz)
100k
Figure 6. Jitter Transfer (Minimal Peaking)
(Register 0x33[7] = 0)
AD9551
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
–180
100
CARRIER 619.666689MHz 0.8705dBm
RMS JITTER:
0.773ps (12kHz TO 20MHz)
0.559ps (50kHz TO 80MHz)
1k
10k
100k
1M
10M
FREQUENCY OFFSET FROM CARRIER (Hz)
100M
Figure 7. Phase Noise, Integer-N
(fIN = 622.08 MHz, fOUT1 = 619.67 MHz, fXTAL = 26 MHz)
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
–180
100
CARRIER 619.666712MHz 0.6233dBm
RMS JITTER:
1.327ps (12kHz TO 20MHz)
0.438ps (50kHz TO 80MHz)
1k
10k
100k
1M
10M
FREQUENCY OFFSET FROM CARRIER (Hz)
100M
Figure 8. Phase Noise, 19.44 MHz Mode, Integer-N
(fIN = 19.44 MHz, fOUT1 = 619.67 MHz, fXTAL = 52 MHz)
5
0
–5
–10
–15
–20
–25
1.0
0.5
–30
0
–0.5
–35 –1.0
10
100
–40
10
100
1k
10k
FREQUENCY OFFSET (Hz)
100k
Figure 9. Jitter Transfer (Nominal Peaking)
(Register 0x33[7] = 1)
Rev. B | Page 11 of 40