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DS4625 Datasheet, PDF (3/6 Pages) Maxim Integrated Products – 3.3V Dual-Output LVPECL Clock Oscillator
3.3V Dual-Output LVPECL Clock Oscillator
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +2.97V to +3.63V, TA = -40°C to +70°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 -
VCC - 2.0V
1.085
VCC -
V
0.88
Output Low Voltage
VOL
Output connected to 50 at PECL_BIAS at VCC -
VCC - 2.0V
1.825
VCC -
V
1.62
Differential Output Voltage
Output Rise Time
Output Fall Time
Duty Cycle
Propagation Delay from OE
Going Low to Output High
Impedance
|VOD|
Output connected to 50 at PECL_BIAS at 0.595 0.710
VCC - 2.0V
V
tR
20% to 80%
200
ps
tF
80% to 20%
200
ps
DCYCLE
45
55
%
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
Accumulated Deterministic
Jitter Due to Power-Supply Noise
(P-P) (Note 6)
125.00MHz output, VCC = +3.3V,
TA = +25°C
10kHz
100 kH z
200 kH z
1MHz
0.1
ps
12.9
ps
26.3
ps
20.1
ps
6.4
ps
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
OFFSET
100Hz
1kHz
10kHz
100 kH z
1MHz
10MH z
20MH z
SSB PHASE NOISE (dBc/Hz) (TYPICAL, +25°C, +3.3V)
fC = 100MHz
-71
fC = 125MHz
-85
fC = 150MHz
-84
fC = 156.25MHz
-79
-116
-117
-116
-115
-119
-118
-116
-117
-126
-125
-122
-123
-143
-142
-141
-140
-151
-149
-149
-148
-151
-150
-149
-149
fC = 200MHz
-85
-113
-113
-120
-139
-149
-150
UNITS
dBc/H z
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