Rainbow Electronics MAX3673 - Manual (Page 7)

MAX3673
Low-Jitter Frequency Synthesizer
with Selectable Input Reference
_______________________________________________________________________________________ 7
SUPPLY CURRENT
vs. TEMPERATURE
MAX3673 toc10
TEMPERATURE ( °C)
SUPPLY CURRENT (mA)
60 35 10 -15
50
100
150
200
250
300
350
400
450
500
0
-40 85
ALL OUTPUTS ENABLED
AND TERMINATED
ALL OUTPUTS ENABLED
AND UNTERMINATED
JITTER HISTOGRAM WITH SUPPLY NOISE
(SUPPLY NOISE = 50mV
P-P
, 100kHz)
MAX3673 toc11
2ps/div
DJ = 5ps P-P
DETERMINISTIC JITTER
vs. POWER-SUPPLY NOISE AMPLITUDE
MAX3673 toc12
SUPPLY NOISE AMPLITUDE (mV P-P )
DETERMINISTIC JITTER (ps
P-P
)
250 200 50 100 150
5
10
15
20
25
30
35
40
0
0 300
f NOISE = 100kHz
f NOISE = 200kHz
f NOISE = 1MHz
SPURS CAUSED BY POWER-SUPPLY NOISE
vs. SUPPLY NOISE FREQUENCY
MAX3673 toc13
SUPPLY NOISE FREQUENCY (Hz)
SPUR POWER (dBc)
1M 100k
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10k 10M
f OUT = 122.88MHz
SUPPLY NOISE = 100mV P-P
SUPPLY NOISE = 50mV P-P
DETERMINISTIC JITTER
vs. POWER-SUPPLY NOISE FREQUENCY
MAX3673 toc14
SUPPLY NOISE FREQUENCY (Hz)
DETERMINISTIC JITTER (ps
P-P
)
1M 100k
5
10
15
20
25
30
35
40
0
10k 10M
SUPPLY NOISE = 100mV
P-P
SUPPLY NOISE = 50mV P-P
POWER-ON-RESET
MAX3673 toc15
200 μs/div
V CC
OUTxx
LOCK
MASTER RESET
MAX3673 toc16
40 μs/div
MR
OUTxx
LOCK
REFERENCE CLOCK FAILURE DETECTION
MAX3673 toc17
2ms/div
REFCLK1
IN1FAIL
LOCK
Typical Operating Characteristics (continued)
(V CC = 3.3V, T A = +25 °C, unless otherwise noted.)