MAX3625B Datasheet, PDF (4/10 Pages) Maxim Integrated Products – Low-Jitter, Precision Clock Generator with Three Outputs

Low-Jitter, Precision Clock
Generator with Three Outputs
Typical Operating Characteristics
(Typical values are at V_CC = +3.3V, T_A = +25°C, crystal frequency = 25MHz.)
SUPPLY CURRENT
vs. TEMPERATURE
250
225
200
175
ALL OUTPUTS ACTIVE AND TERMINATED
150
125
100
ALL OUTPUTS ACTIVE AND UNTERMINATED
75
50
25
0
-40 -15
10
35
60
85
AMBIENT TEMPERATURE (°C)
-80
-90
-100
-110
-120
-130
-140
-150
-160
0.1
PHASE NOISE AT 125MHz
CLOCK FREQUENCY
1 10 100 1000 10,000 100,000
OFFSET FREQUENCY (kHz)
DIFFERENTIAL OUTPUT WAVEFORM
AT 156.25MHz
MAX3625B toc02
1ns/div
-80
-90
-100
-110
-120
-130
-140
-150
-160
0.1
PHASE NOISE AT 156.25MHz
CLOCK FREQUENCY
1 10 100 1000 10,000 100,000
OFFSET FREQUENCY (kHz)
-80
-90
-100
-110
-120
-130
-140
-150
-160
0.1
PHASE NOISE AT 312.5MHz
CLOCK FREQUENCY
1 10 100 1000 10,000 100,000
OFFSET FREQUENCY (kHz)
SPURS INDUCED BY POWER-SUPPLY NOISE
vs. NOISE FREQUENCY
0
f_C = 156.25MHz
-10 _{NOISE AMPLITUDE = 40mVP-P}
-20
-30
-40
-50
-60
-70
-80
-90
-100
10
100
1000
NOISE FREQUENCY (kHz)
10,000
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