AD9549BCPZ datasheet(8/78 Pages) AD

8 / 78 page

AD9549

Preliminary Technical Data

Rev. PrA | Page 8 of 78

CLOCK DRIVERS

HSTL OUTPUT DRIVER

Toggle Rate

TBD

725

MHz

see plot for maximum toggle rate

Output Duty Cycle

Output Rise/Fall Time

TBD

100

Ω terminated, 5pF load

JITTER

0.6

Fin=25 MHz, Fout=200 MHz

HSTL OUTPUT DRIVER WITH 2X MULTIPLIER

Output Frequency Range

TBD

MHz

Duty Cycle

Sub-harmonic Spur Level

-35

dBc

without correction

JITTER

CMOS OUTPUT DRIVER (AVDD3/PIN 37) @3.3V

Fin=25 MHz, Fout=200 MHz

Toggle Rate

100

MHz

see plot for maximum toggle rate

Duty Cycle

With 20pF load and up to 50 MHz

Output Rise/Fall Time

JITTER

Fin=25 MHz, Fout=50 MHz

CMOS OUTPUT DRIVER AT (AVDD3/PIN 37) @1.8V

Toggle Rate

MHz

see plot for maximum toggle rate

Duty Cycle

With 20pF load and up to 50 MHz

Output Rise/Fall Time

JITTER

Fin=25 MHz, Fout=50 MHz

HOLDOVER

Frequency Accuracy (XTAL)

xxxMHz, xxxppm crystal resonator at

SYSCLK pins

Variation Over Temperature range

ppm/oC

Variation Over Supply range

ppm/V

Frequency Accuracy (TCXO)

TCXO at SYSCLK pins

Variation Over Temperature range

ppm/oC

Variation Over Supply range

ppm/V

OUTPUT FREQUENCY SLEW LIMITER

Slew Rate Resolution

0.54

111

Hz/sec

P=216 for minimum; P=25 for maximum

Slew Rate Range

3x1016

Hz/sec

P=216 for minimum; P=25 for maximum

REFERENCE MONITORS

LOSS OF REFERENCE MONITOR

Operating Frequency Range

7.63x103

167x106

Minimum Frequency Error for Continuous

“REF” Present” Indication

-16

ppm

fREF= 8 kHz

Minimum Frequency Error for Continuous

“REF” Present” Indication

-19

fREF= 155 MHz

Maximum Frequency Error for Continuous

“REF Lost” Indication

-32

ppm

fREF= 8 kHz

Maximum Frequency Error for Continuous

“REF Lost” Indication

-35

fREF= 155 MHz

REFERENCE QUALITY MONITOR

Operating Frequency Range

Frequency Resolution (normalized)

0.001

ppm

fREF= 8 kHz; M=15 for minimum;

M=1 for maximum (see text)

Frequency Resolution (normalized)

0.002

44.9

fREF= 155 MHz; M=15 for minimum;

M=1 for maximum (see text)

VALIDATION TIMER

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