Preliminary Specification

Electrical Characteristics

Parameter

Sym

Conditions

Min

Typical

Max

Unit

Power

Requirements

Power Supply

Vcc

± 5%

350L

± 5%

350S

3.135

4.75

3.30

5.0

3.465

5.25

Vdc

Vdc

Supply Current

Icc

Vcc=Max. (3.3Vdc)

50

Ω . Load (5.0Vdc)

55

80

mA

mA

Frequency

Stabilities

Center

Frequency

416

622.08

832

MHz

Initial Tolerance

Ta=+25

°C

EFC=Center(0.5Vcc)

-10

+10

ppm

Freq. vs. Temp.

∆f/∆Temp

Oper. Temp. Range

± 15

ppm

Freq. vs. Voltage

∆f/∆Vcc

Vcc

± 5%

± 1

ppm

Freq. vs. Load

∆f/∆RL

± 10% Variation

± 1

ppm

Freq. vs Time

(Aging)

∆f/∆Time

20 years

± 10

ppm

Deviation

Characteristics

Control Voltage

VC

3.3V “L”Version

5.0V “S”Version

0.15

0.5

3.15

4.5

V

V

Frequency

Deviation

∆f

+25

°C at time of

Shipment

± 125

ppm

Linearity

Lin

Best Staight Line Fit

-10

5

10

%

Absolute Pull

Range

APR

Under all conditions

for the life of the part

± 85

ppm

Input Impedance

Zin

100

K

Ω

Waveform

Parameters

Symmetry

Sym

@ 50% Level

45

50

55

%

Amplitude

Vo

50

Ω Load

Vcc-1.62V

Vcc-1.025V

V

Rise/Fall Times

tr, tf

20% to 80%

225

350

pSec

Load

RL

Output to Vcc-2.0V

or Equivalent

50

Ω

Phase Jitter

12KHz to 20MHz or

50KHz to 80MHz

Bandwidth

<1

pSec RMS

Model 350

9x14mm Differential PECL

High Frequency VCXO

(416MHz to 832MHz)

♦ 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

♦♦♦ CTS Frequency Products ♦ 400 W. North Street ♦ Carlisle, PA 17013 ♦ 717-243-5929 ♦♦♦