Rainbow Electronics MAX3625В - Manual (Page 4)

MAX3625B
Low-Jitter, Precision Clock
Generator with Three Outputs
4 _______________________________________________________________________________________
SUPPLY CURRENT
vs. TEMPERATURE
MAX3625B toc01
AMBIENT TEMPERATURE ( °C)
SUPPLY CURRENT (mA)
60 35 10 -15
25
50
75
100
125
150
175
200
225
250
0
-40 85
ALL OUTPUTS ACTIVE AND TERMINATED
ALL OUTPUTS ACTIVE AND UNTERMINATED
DIFFERENTIAL OUTPUT WAVEFORM
AT 156.25MHz
MAX3625B toc02
1ns/div
AMPLITUDE (200mv/div)
PHASE NOISE AT 312.5MHz
CLOCK FREQUENCY
MAX3625B toc03
OFFSET FREQUENCY (kHz)
NOISE POWER DENSITY (dBc/Hz)
10,000 1000 1 10 100
-150
-140
-130
-120
-110
-100
-90
-80
-160
0.1 100,000
PHASE NOISE AT 125MHz
CLOCK FREQUENCY
MAX3625B toc04
OFFSET FREQUENCY (kHz)
NOISE POWER DENSITY (dBc/Hz)
10,000 1000 1 10 100
-150
-140
-130
-120
-110
-100
-90
-80
-160
0.1 100,000
PHASE NOISE AT 156.25MHz
CLOCK FREQUENCY
MAX3625B toc05
OFFSET FREQUENCY (kHz)
NOISE POWER DENSITY (dBc/Hz)
10,000 1000 1 10 100
-150
-140
-130
-120
-110
-100
-90
-80
-160
0.1 100,000
SPURS INDUCED BY POWER-SUPPLY NOISE
vs. NOISE FREQUENCY
MAX3625B toc06
NOISE FREQUENCY (kHz)
SPUR AMPLITUDE (dBc)
1000 100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 10,000
f C = 156.25MHz
NOISE AMPLITUDE = 40mV P-P
Typical Operating Characteristics
(Typical values are at V CC = +3.3V, T A = +25°C, crystal frequency = 25MHz.)