Rainbow Electronics MAX3673 - Manual (Page 6)

MAX3673
Low-Jitter Frequency Synthesizer
with Selectable Input Reference
6 _______________________________________________________________________________________
PHASE NOISE AT 61.44MHz
MAX3673 toc01
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
10M 1M 100k 10k 1k
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-160
100 100M
RANDOM JITTER = 0.41ps RMS
INTEGRATED 12kHz TO 20MHz
PHASE NOISE AT 122.88MHz
MAX3673 toc02
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
10M 1M 100k 10k 1k
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-160
100 100M
RANDOM JITTER = 0.29ps RMS
INTEGRATED 12kHz TO 20MHz
PHASE NOISE AT 153.6MHz
MAX3673 toc03
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
10M 1M 100k 10k 1k
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-160
100 100M
RANDOM JITTER = 0.28ps RMS
INTEGRATED 12kHz TO 20MHz
PHASE NOISE AT 245.76MHz
MAX3673 toc04
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
10M 1M 100k 10k 1k
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-160
100 100M
RANDOM JITTER = 0.27ps RMS
INTEGRATED 12kHz TO 20MHz
PHASE NOISE AT 307.2MHz
MAX3673 toc05
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
10M 1M 100k 10k 1k
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-160
100 100M
RANDOM JITTER = 0.28ps RMS
INTEGRATED 12kHz TO 20MHz
JITTER TRANSFER
MAX3673 toc06
JITTER FREQUENCY (Hz)
JITTER TRANSFER (dB)
100k 10k
-25
-20
-15
-10
-5
0
5
-30
1k 1M
DIFFERENTIAL OUTPUT WAVEFORM
AT 153.6MHz
MAX3673 toc07
800ps/div
200mV/div
DIFFERENTIAL OUTPUT WAVEFORM
AT 307.2MHz
MAX3673 toc08
400ps/div
200mV/div
REFERENCE CLOCK AMPLITUDE DETECTION
ASSERT THRESHOLD vs. INPUT FREQUENCY
MAX3673 toc09
REFERENCE CLOCK INPUT FREQUENCY (MHz)
ASSERT THRESHOLD (mV
P-P
)
300 250 200 150 100
150
170
190
210
230
250
270
290
310
330
130
50 350
INPUT RISE/FALL TIME = 550ps
INPUT RISE/FALL TIME = 270ps
Typical Operating Characteristics
(V CC = 3.3V, T A = +25 °C, unless otherwise noted.)