Model 344
“Panther PLL+” Series
Low Cost PECL VCXO
♦Low
Phase Jitter: < 15 pSec RMS
♦+3.3Vdc
or +5.0Vdc Operation
♦Complimentary
PECL Output Stage
♦Output
Enable Function
♦Low
Noise Phase Locked Multiplier
♦Guaranteed
Minimum Pull Range
♦Industry
Standard Ceramic Package
Electrical Characteristics
Parameter
Power Supply
Supply
Current
Center
Frequency
Freq. vs.
Temp.
Freq. vs.
Voltage
Freq. vs. Load
Freq. vs Time
(Aging)
Control
Voltage
Frequency
Deviation
Linearity
Absolute Pull
Range
Input
Impedance
Bandwidth
Symmetry
Amplitude
Rise/Fall
Times
Load
Phase Jitter
Sym
Vcc
Icc
f
nom
∆f/∆Temp
∆f/∆Vcc
∆f/∆RL
∆f/∆Time
VC
∆f
Lin
APR
Conditions
±
5%
Vcc=Max.
No Load
Min
3.135
4.750
Typical
3.30
5.00
60 (3.3Vdc)
80 (5.0Vdc)
155.520
125.00
77.760
±
15
±
2
±
1
10
Max
3.465
5.250
100
156
Unit
Vdc
mA
MHz
40
Over Operating
Temp. Range
Vcc
±5%
±
10% Variation
10 years
3.3V “L” Version
5.0V “S” Version
+25°C at time of
Shipment
Best Staight Line Fit
Under all conditions
for the life of the
part (Ref. to f
nom
)
0.0
0.5
ppm
ppm
ppm
ppm
3.3
4.5
V
V
ppm
%
ppm
±
120
-10
±50
10
2
10
Zin
-3db Point
@ 50% Level
Nominal Load
20% to 80%
to Vcc-2.0V or
Equivalent
12KHz to 20MHz
Bandwidth
KΩ
KHz
%
pSec
Ω
<15
pSec RMS
Sym
Vo
tr, tf
RL
10
45
Vcc-1.62V
50
55
Vcc-1.025V
550
50
♦♦♦
CTS Frequency Products
♦
400 W. North Street
♦
Carlisle, PA 17013
♦
717-243-5929
♦♦♦
Enable Truth Table
Pin 2 (Enable)
“0”
“1”
Open
Pin 4
Output
“0”
Output
Model 344
“Panther PLL+” Series
Low Cost PECL VCXO
Pin 5
Complimentary Output
“1”
Complimentary Output
VC
EN
1
2
3
6
5
4
V c c (+ 5 o r + 3 .3 V D C )
.0 1 u F
SC O PE
C O U N TE R
270
Ω
Typical Test Circuit
270
Ω
Environmental / Mechanical Specifications
Storage Temperature:
Reflow Soldering:
Shock:
Vibration:
Case:
Seal:
Fine Leak Rate:
-55° to +125°C
will withstand 240°C for 20 Seconds
1000 G’s, 5 mSec. Pulse (3 Shocks/Axis)
20 G’s RMS, 20 to 2000 Hz
Test Diagram
Ceramic / Kovar
Resistance Weld
-8
< 5x10 Atm. Cc/sec. of Helium
Ordering Information
Model 344
Supply Voltage
L = +3.3Vdc
S = +5.0Vdc
-- ___.________
Operating Temp. Range
A = 0° to +70°C
B = -40° to +85°C
Example: 344SB-155.52
344LA-125.00
344LB-77.760
Frequency in MHz
♦♦♦
CTS Frequency Products
♦
400 W. North Street
♦
Carlisle, PA 17013
♦
717-243-5929
♦♦♦
Rev 0
京公网安备 11010802033920号
EEWORLD
