AD9525(Rev0) Ver la hoja de datos (PDF) - Analog Devices

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componentes Descripción

Fabricante

AD9525
(Rev.:Rev0)

Low Jitter Clock Generator with Eight LVPECL Outputs

Analog Devices 

AD9525

Data Sheet

CLOCK OUTPUT ABSOLUTE TIME JITTER (CLOCK GENERATION USING EXTERNAL 122.88 MHZ VCXO)

Table 11.

Parameter

LVPECL OUTPUT ABSOLUTE TIME JITTER

FOUT = 122.88 MHz

FOUT = 61.44 MHz

Min Typ Max Unit Test Conditions/Comments

Application example based on a typical setup using

an external 122.88 MHz VCXO (Crystek CVHD-950);

reference = 122.88 MHz; R divider = 1; LBW = 40 Hz

107

fs rms Integration BW = 1 kHz to 40 MHz

69

fs rms Integration BW = 12 kHz to 20 MHz

108

fs rms Integration BW = 1 kHz to 20 MHz

107

fs rms Integration BW = 12 kHz to 20 MHz

CLOCK OUTPUT ABSOLUTE TIME JITTER (CLOCK GENERATION USING EXTERNAL 1475 MHZ VCO)

Table 12.

Parameter

LVPECL OUTPUT ABSOLUTE TIME JITTER

FOUT = 1474.56 MHz

Reference Sideband Spurs

FOUT = 245.76 MHz

Reference Sideband Spurs

Min Typ Max Unit Test Conditions/Comments

Application example based on a typical setup using

an external 1475 MHz VCO (Bowei Model MVCO-1475);

reference = 122.88 MHz; R divider = 1; PLL LBW = 18 kHz

99

fs rms Integration BW = 1 kHz to 100 MHz

77

fs rms Integration BW = 10 kHz to 100 MHz

74

fs rms Integration BW = 10 kHz to 40 MHz

68

fs rms Integration BW = 12 kHz to 20 MHz

−93

dBc ±122.88 MHz

104

fs rms Integration BW = 1 kHz to 100 MHz

87

fs rms Integration BW = 10 kHz to 100 MHz

75

fs rms Integration BW = 12 kHz to 20 MHz

−98

dBc ±122.88 MHz

Table 13.

Parameter

LVPECL OUTPUT ABSOLUTE TIME JITTER

FOUT = 1474.56 MHz

Reference Sideband Spurs

FOUT = 245.76 MHz

Reference Sideband Spurs

Min Typ Max Unit Test Conditions/Comments

Application example based on a typical setup using

an external 1475 MHz VCO (Z-Communications CRO1474-LF);

reference = 122.88 MHz; R divider = 1; PLL LBW = 8 kHz

72

fs rms Integration BW = 1 kHz to 100 MHz

40

fs rms Integration BW = 10 kHz to 100 MHz

33

fs rms Integration BW = 10 kHz to 40 MHz

28

fs rms Integration BW = 12 kHz to 20 MHz

−94

dBc ±122.88 MHz

83

fs rms Integration BW = 1 kHz to 100 MHz

61

fs rms Integration BW = 10 kHz to 40 MHz

46

fs rms Integration BW = 12 kHz to 20 MHz

−93

dBc ±122.88 MHz

Rev. 0 | Page 8 of 48

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