MAX3622 Datasheet, PDF (4/9 Pages) Maxim Integrated Products – Low-Jitter, Precision Clock Generator with Two Outputs

Low-Jitter, Precision Clock Generator
with Two Outputs
Typical Operating Characteristics
(Typical values are at V_CC = +3.3V, T_A = +25°C, crystal frequency = 25MHz.)
SUPPLY CURRENT vs. TEMPERATURE
150
125
BOTH OUTPUTS ACTIVE AND TERMINATED
100
75
BOTH OUTPUTS ACTIVE AND UNTERMINATED
50
25
0
0 10 20 30 40 50 60 70
AMBIENT TEMPERATURE (°C)
DIFFERENTIAL OUTPUT WAVEFORM
AT 156.25MHz (LVPECL OUTPUT)
MAX3622 toc02
1ns/div
OUTPUT WAVEFORM AT 125MHz
(LVCMOS OUTPUT)
MAX3622 toc03
MEASURED USING 50Ω OSCILLOSCOPE INPUT
THROUGH NETWORK SHOWN IN FIGURE 1
1ns/div
QB PHASE NOISE
(156.25MHz CLOCK FREQUENCY)
-80
-90
-100
-110
-120
-130
-140
-150
-160
0.1
1 10 100 1000 10,000 100,000
OFFSET FREQUENCY (kHz)
QA_C PHASE NOISE
(125MHz CLOCK FREQUENCY)
-80
-90
-100
-110
-120
-130
-140
-150
-160
0.1
1 10 100 1000 10,000 100,000
OFFSET FREQUENCY (kHz)
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