CTS 350

Preliminary Specification
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9x14mm Surface Mount Pkg.
Differential PECL Outputs
Guaranteed Minimum Pull Range
+3.3Vdc or +5.0Vdc Operation
Sealed AT Strip Crystal
Output Enable Function
Low Phase Jitter: < 1.0 pSec RMS
Excellent Solder Reflow Performance
Model 350
9x14mm Differential PECL
High Frequency VCXO
(416MHz to 832MHz)
Electrical Characteristics
Parameter
Sym
Conditions
Power
Requirements
Power Supply
Vcc
Supply Current
Icc
Frequency
Stabilities
Center
Frequency
Initial Tolerance
fnom
Freq. vs. Temp.
∆f/∆Temp
Ta=+25°C
EFC=Center(0.5Vcc)
Oper. Temp. Range
Freq. vs. Voltage
Freq. vs. Load
Freq. vs Time
(Aging)
Deviation
Characteristics
Control Voltage
∆f/∆Vcc
∆f/∆RL
∆f/∆Time
Vcc ± 5%
± 10% Variation
20 years
VC
Frequency
Deviation
Linearity
Absolute Pull
Range
∆f
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 fnom)
Input Impedance
Zin
Waveform
Parameters
Symmetry
Amplitude
Rise/Fall Times
Load
Sym
Vo
tr, tf
RL
Phase Jitter
fcal
Lin
APR
± 5%
350L
± 5%
350S
Vcc=Max. (3.3Vdc)
50Ω . Load (5.0Vdc)
Min
Typical
Max
Unit
3.135
4.75
3.30
5.0
55
80
3.465
5.25
Vdc
Vdc
mA
mA
416
622.08
832
MHz
+10
ppm
± 15
ppm
± 10
ppm
ppm
ppm
-10
± 1
± 1
0.15
0.5
3.15
4.5
V
V
ppm
10
%
ppm
± 125
-10
± 85
5
100
@ 50% Level
50Ω Load
20% to 80%
Output to Vcc-2.0V
or Equivalent
12KHz to 20MHz or
50KHz to 80MHz
Bandwidth
45
Vcc-1.62V
KΩ
50
225
50
55
Vcc-1.025V
350
%
V
pSec
Ω
<1
pSec RMS
♦ ♦ ♦ CTS Frequency Products ♦ 400 W. North Street ♦ Carlisle, PA 17013 ♦ 717-243-5929 ♦ ♦ ♦
Preliminary Specification
Model 350
9x14mm Differential PECL
High Frequency VCXO
(416MHz to 832MHz)
Option “A”
Enable Truth Table
Pin 2
PECL “0”
PECL “1”
Open
Pins 4&5
Disabled
Enabled
Disabled
Option “B”
Enable Truth Table
Pin 2
PECL “0”
PECL “1”
Open
Pins 4&5
Enabled
Disabled
Enabled
Environmental / Mechanical Specifications
Storage Temperature:
Reflow Soldering:
Shock:
Vibration:
-55° to +125°C
will withstand 240°C for 20 Seconds
1500 G’s, 0.5 mSec. Pulse (3 Shocks/Axis)
10 G’s peak, 20 to 2000 Hz
Case:
High Temp. FR-4 Base
Ordering Information
Model 350
-- ___.________ Example: 350LAA-622.080
350SBB-666.514
Supply Voltage
L = +3.3Vdc
S = +5.0Vdc
Operating Temp. Range
A = 0° to +70°C
B = -40° to +85°C
Truth Table Option
A = Enable High
B = Enable Low
Frequency in MHz
♦ ♦ ♦ CTS Frequency Products ♦ 400 W. North Street ♦ Carlisle, PA 17013 ♦ 717-243-5929 ♦ ♦ ♦
Rev. 5