Rainbow-electronics MAX3622 Manual de usuario descargar pdf (Pagina 3)

MAX3622

Low-Jitter, Precision Clock Generator

with Two Outputs

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +3.0V to +3.6V, T

= 0°C to +70°C, unless otherwise noted. Typical values are at V

= +3.3V, T

= +25°C, unless otherwise

noted.) (Notes 1, 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CLOCK OUTPUT AC SPECIFICATIONS

VCO Frequency Range 620 625 648 MHz

12kHz to 20MHz 0.36 1.0

Random Jitter RJ

RMS

1.875MHz to 20MHz 0.14

RMS

LVPECL output 4

Deterministic Jitter Induced by

Power-Supply Noise

(Notes 5, 6)

LVCMOS output 19

P-P

LVPECL output -57

Spurs Induced by Power-Supply

Noise (Note 6)

LVCMOS output -47

dBc

Nonharmonic and Subharmonic

Spurs

-70 dBc

f = 1kHz -124

f = 10kHz -126

f = 100kHz -130

f = 1MHz -145

Clock Output SSB Phase Noise

at 125MHz

f > 10MHz -153

dBc/Hz

Note 1: A series resistor of up to 10.5Ω is allowed between V

and V

CCA

for filtering supply noise when system power-supply

tolerance is V

= 3.3V ±5%. See Figure 2.

Note 2: LVPECL terminated with 50Ω load connected to V

= V

- 2V.

Note 3: Both outputs enabled and unloaded.

Note 4: Measured using setup shown in Figure 1 with V

= 3.3V ±5%.

Note 5: Measured with Agilent DSO81304A 40GS/s real-time oscilloscope.

Note 6: Measured with 40mV

P-P

, 100kHz sinusoidal signal on the supply with V

CCA

connected as shown in Figure 2.

MAX3622

QA_C

36Ω 499Ω

= 50Ω

OSCILLOSCOPE

4.7pF

0.1μF

50Ω

Figure 1. LVCMOS Output Measurement Setup

1 2 3 4 5 6 7 8 9

Comentarios a estos manuales

Sin comentarios

Rainbow-electronics MAX3622 Manual de usuario Pagina 3

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware De La Computadora Rainbow-electronics MAX3622