
2
All specifications are subject to change without notice.
PR 3.3V REV2008_DEC04_01.4
SaRonix-eCera is a Pericom Semiconductor company US: +1-408-435-0800 TW: +886-3-4518888
www.saronix-ecera.com
3.3V PECL High Frequency VCXO
PR Series Voltage Controlled Crystal Oscillator (VCXO)
Legacy S1577 Series | 7.0 x 5.0mm
PR
Electrical Performance
Parameter
Min.
Typ.
Max.
Units
Notes
Output Frequency (FN)19.44
800
MHz
As specied
Supply Voltage
3.14
3.3
3.46
V
Supply Current
100
mA
Frequency Stability
±20 to ±50
ppm
See Note 1 below
Operating Temperature Range
-40
+85
°C
As specied
Output Logic 0, VOL
VCC - 1.620
V
0 to +85C
Output Logic 1, VOH
VCC - 1.025
V
0 to +85C
Output Load
50Ω to VCC - 2V
output requires termination
Duty Cycle
45
55
%
measured VDD - 1.3 VDC
Rise and Fall Time
0.6
1.5
ns
measured 20/80% of waveform
Jitter, Phase
2.5
4
ps RMS (1-σ)
12kHz to 20MHz frequency band
Jitter, Accumulated
5
10
ps RMS (1-σ)
10,000 adjacent periods
Notes:
1.
As specied. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, shock and vibration. Stability is
inclusive of 5 years aging at 40°C average effective ambient temperature for ordering options A, B, D, E.
2.
For specications other than those listed, please contact sales.
Absolute Maximum Ratings
Parameter
Min.
Typ.
Max.
Units
Notes
Storage Temperature
-55
+125
°C
Frequency Modulation Function
Parameter
Min.
Typ.
Max.
Units
Notes
Absolute Pull Range (APR)
±50
ppm
See #1 below
Control Voltage Range
0.3
3.0
VDC
As rated
Center Control Voltage
1.32
1.65
1.98
V
For RMT center frequency
Monotonic Linearity
10
%
Positive transfer slope
Input Impedance
50
kΩ
Control voltage pin
Modulation Bandwidth
10
kHz
-3dB
Notes:
1. APR is relative to the nominal output frequency FN; APR is inclusive (net) of frequency deviation due to stability.
Output Enable / Disable Function
Parameter
Min.
Typ.
Max.
Units
Notes
Input Voltage, Output Enable (pin 2)
VOL
Vor Open
Input Voltage, Output Disable (pin2)
VOH
V
Q and Q outputs disable to High Impedance