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AD9547 датащи(PDF) 19 Page - Analog Devices

номер детали AD9547
подробное описание детали  Dual/Quad Input Network Clock Generator/Synchronizer
PDF  106 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD9547 датащи(HTML) 19 Page - Analog Devices

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Data Sheet
AD9547
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100k
1M
10M
100M
FREQUENCY OFFSET (Hz)
INTEGRATED RMS JITTER (PHASE NOISE):
5kHz TO 20MHz: 361fs (–69.0dBc)
20kHz TO 80MHz: 441fs (–67.3dBc) (EXTRAPOLATED)
Figure 7. Absolute Phase Noise (Output Driver = LVPECL),
fREF = 19.44 MHz, fO = 155.52 MHz,
LBW = 1 kHz, fSYSCLK = 50 MHz, PLL On
–160
–150
–140
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–110
–100
–90
–80
–70
100
1k
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1M
10M
100M
FREQUENCY OFFSET (Hz)
INTEGRATED RMS JITTER (PHASE NOISE):
12kHz TO 20MHz: 245fs (–65.0dBc)
20kHz TO 80MHz: 300fs (–64.3dBc)
Figure 8. Absolute Phase Noise (Output Driver = LVPECL),
fREF = 19.44 MHz, fO = 155.52 MHz,
LBW = 1 kHz, fSYSCLK = 50 MHz (Crystal), PLL On with
2× Frequency Multiplier, ICP = 375 µA, LF = External (350 kHz)
ROHDE & SCHWARZ
SMA100 (1GHz)
ROHDE & SCHWARZ
SMA100 (50MHz)
20MHz OCXO
–170
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FREQUENCY OFFSET (Hz)
Figure 9. Phase Noise of SYSCLK Input Sources
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1k
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1M
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FREQUENCY OFFSET (Hz)
ROHDE & SCHWARZ
SMA100 (1GHz)
ROHDE & SCHWARZ
SMA100 (50MHz)
50MHz CRYSTAL
Figure 10. Absolute Phase Noise Comparison of SYSCLK Input Options
(Output Driver = LVPECL),
fREF = 19.44 MHz, fO = 311.04 MHz, LBW = 1 kHz
100
1k
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100k
1M
10M
100M
FREQUENCY OFFSET (Hz)
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
INTEGRATED RMS JITTER (PHASE NOISE):
5kHz TO 20MHz: 336fs (–69.7dBc)
20kHz TO 80MHz: 425fs (–67.6dBc)
Figure 11. Absolute Phase Noise (Output Driver = LVPECL),
fREF = 8 kHz, fO = 155.52 MHz,
LBW = 100 Hz, fSYSCLK = 50 MHz (Crystal), PLL On
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0
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FREQUENCY OFFSET (Hz)
CLOSED-LOOP PEAKING: 0.04dB
Figure 12. Jitter Transfer Bandwidth, Output Driver = LVPECL,
fREF = 19.44 MHz, fO = 155.52 MHz,
LBW = 100 Hz (Phase Margin = 88°), fSYSCLK = 1 GHz, PLL Off
Rev. G | Page 19 of 106



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