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DS4625
3.3V Dual-Output LVPECL Clock Oscillator
_______________________________________________________________________________________
3
Note 2: Limits at -40°C are guaranteed by design and are not production tested.
Note 3: AC parameters are guaranteed by design and not production tested.
Note 4: Startup time is from VCC = VCCMIN until PLL locks to the crystal oscillator output.
Note 5: Frequency stability is calculated as:
ΔfTOTAL = ΔfTEMP + ΔfVCC x (3.3 x 10%) + ΔfLOAD + ΔfAGING.
Note 6: Supply-induced jitter is the deterministic jitter as measured on a LeCroy SDA11000 measured with a 50mVP-P sine wave
forced on VCC.
SINGLE-SIDEBAND PHASE NOISE
SSB PHASE NOISE (dBc/Hz) (TYPICAL, +25°C, +3.3V)
OFFSET
fC = 100MHz
fC = 125MHz
fC = 150MHz
fC = 156.25MHz
fC = 200MHz
UNITS
100Hz
-71
-85
-84
-79
-85
1kHz
-116
-117
-116
-115
-113
10kHz
-119
-118
-116
-117
-113
100kHz
-126
-125
-122
-123
-120
1MHz
-143
-142
-141
-140
-139
10MHz
-151
-149
-148
-149
20MHz
-151
-150
-149
-150
dBc/Hz
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +2.97V to +3.63V, TA = -40°C to +85°C, typical values are at VCC = +3.3V and TA = +25°C, unless otherwise noted.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output High Voltage
VOH
Output connected to 50
at PECL_BIAS at
VCC - 2.0V
VCC -
1.085
VCC -
0.88
V
Output Low Voltage
VOL
Output connected to 50
at PECL_BIAS at
VCC - 2.0V
VCC -
1.825
VCC -
1.62
V
Differential Output Voltage
|VOD|
Output connected to 50
at PECL_BIAS at
VCC - 2.0V
0.595
0.710
V
Output Rise Time
tR
20% to 80%
200
ps
Output Fall Time
tF
80% to 20%
200
ps
Duty Cycle
DCYCLE
45
55
%
Propagation Delay from OE
Going Low to Output High
Impedance
tPAZ
(See Figure 2)
100
ns
Propagation Delay from OE
Going High to Output Active
tPZA
(See Figure 2)
100
ns
Jitter
JRMS
Integrated phase RMS, 12kHz to 20MHz,
VCC = +3.3V, TA = +25°C
0.7
ps
Accumulated Deterministic
Jitter Due to Reference Spurs
125.00MHz output, VCC = +3.3V,
TA = +25°C
0.1
ps
10kHz
12.9
ps
100kHz
26.3
ps
200kHz
20.1
ps
Accumulated Deterministic
Jitter Due to Power-Supply Noise
(P-P) (Note 6)
1MHz
6.4
ps
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