Rainbow Electronics MAX3671 - Manual (Page 6)

MAX3671
Low-Jitter Frequency Synthesizer
with Selectable Input Reference
6 _______________________________________________________________________________________
Typical Operating Characteristics
(V CC = 3.3V, T A = +25 °C, unless otherwise noted.)
PHASE NOISE AT 62.5MHz
MAX3671 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 125MHz
MAX3671 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 156.25MHz
MAX3671 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 250MHz
MAX3671 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 312.5MHz
MAX3671 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
MAX3671 toc06
JITTER FREQUENCY (Hz)
JITTER TRANSFER (dB)
100k 10k
-25
-20
-15
-10
-5
0
5
-30
1k 1M
DIFFERENTIAL OUTPUT WAVEFORM
AT 156.25MHz
MAX3671 toc07
800ps/div
200mV/div
DIFFERENTIAL OUTPUT WAVEFORM
AT 312.5MHz
MAX3671 toc08
400ps/div
200mV/div
REFERENCE CLOCK AMPLITUDE DETECTION
ASSERT THRESHOLD vs. INPUT FREQUENCY
MAX3671 toc09
REFERENCE CLOCK INPUT FREQUENCY (MHz)
ASSERT THRESHOLD (mV
P-P
)
300 250 200 150 100
120
140
160
180
200
220
240
260
280
300
100
50 350
INPUT RISE/FALL TIME = 550ps
INPUT RISE/FALL TIME = 270ps