PL500-15 Datasheet, PDF (4/5 Pages) Micrel Semiconductor – Low Phase Noise VCXO (1MHz to 18MHz)

PL500-15/16
Low Phase Noise VCXO (1MHz to 18MHz)
4. Jitter and Phase Noise Specifications
PARAMETERS
CONDITIONS
MIN. TYP. MAX. UNITS
RMS Period Jitter
(1 sigma – 1000 samples)
Phase Noise relative to carrier
Phase Noise relative to carrier
Phase Noise relative to carrier
Phase Noise relative to carrier
Phase Noise relative to carrier
With capacitive decoupling
between VDD and GND.
13.5MHz @100Hz offset
13.5MHz @1kHz offset
13.5MHz @10kHz offset
13.5MHz @100kHz offset
13.5MHz @1MHz offset
2.5
ps
-100
dBc/Hz
-125
dBc/Hz
-142
dBc/Hz
-150
dBc/Hz
-150
dBc/Hz
5. DC Specifications
PARAMETERS
SYMBOL
CONDITIONS
Supply Current, Dynamic,
with Loaded Outputs
Operating Voltage
Output Low Voltage at
CMOS level
Output High Voltage at
CMOS level
Output drive current
VCXO Control Voltage
I_DD
V_DD
V_OLC
V_OHC
VCON
F_XIN = 27MHz
3.3V
Output load of
15pF
2.5V
I_OL = +4mA
I_OH = -4mA
For V_OL<0.4V or V_OH>2.4V
MIN.
2.25
V_DD – 0.4
8
0
TYP.
3.7
2.4
9.5
MAX.
5
3.5
3.63
0.4
UNITS
mA
V
V
V
mA
V_DD
V
6. Crystal Specifications
PARAMETERS
SYMBOL
MIN.
TYP. MAX. UNITS
Crystal Loading Rating (VCON = 1.65V, 3.3V VDD)
Crystal Loading Rating (VCON = 1.25V, 2.5V VDD)
Maximum Sustainable Drive Level
Operating Drive Level
Max C0
C0/C1
ESR
C_{L (xtal)}
(see note
below)
R_S
7.8
pF
8.9
200
W
50
W
5
pF
250
-
30
Ω
Note: The crystal must be such that it oscillates (parallel resonant) at nominal frequency when presented a C Load as specified above.
If the crystal requires more load to be at nominal frequency, the additional load must be added externally. This however may reduce the pull range.
Note that the Cload values above are for the IC only, and do not include PCB parasitics. Crystal specifications for Cload include PC B parasitics.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax [phone] • www.micrel.com Rev 7/01/10 Page 4