J-Type Voltage Controlled Crystal Oscillator

Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON

1

Vc

VCXO Control Voltage.

2

TTL logic low disables output

TTL logic high, or no connect, enables output

3

GND

Case and electrical ground.

4

Output

VCXO Output

5

CMOS/TTL

TTL logic low optimizes symmetry for CMOS

TTL logic high, or NC, optimizes symmetry for TTL.

Power Supply Voltage (5.0 V or 3.3V ±10%)

Pin Out Information for the CMOS output option

Electrical Performance @ 25°C for the CMOS output option

CMOS Output Option

1. Standard option. Tri-State can be connected to pin 5 and CMOS/TTL select would be on pin 2.

2. Output is HCMOS. For frequencies >12MHz, this option optimizes symmetry for either CMOS or TTL thresholds. Ground this pin for fre-

quencies < 12MHz.

4.5

5.0

5.5

Vdc

+3.3 volt option

3.0

3.3

3.6

Vdc

Supply Current

10mA + 0.25mA per MHz, typical

Center Frequency, see ordering information

1.024

77.760

MHz

Operating Temperature, see ordering info

0/70, -40/85

°C

Absolute Pull Range over the operating tempera-

APR

±50 to ±100

ppm

ture range, aging and power supply Vc=0.5 to

4.5 at 5V supply or 0.3 to 3.0 V at 3.3V supply

see ordering information for options

Gain Transfer

Positive

(Frequency vs. Control Voltage)

0.8*Vcc

-

V

-

0.1*Vcc

V

5ns

SYM

45/55 or 40/60

%

Control Input Leakage

1uA

Control Voltage Modulation Bandwidth

BW

-

10

-

kHz

RMS Jitter, Output=12.0-77.760 MHz

3ps

RMS Jitter, Output =12.0-77.760 MHz.

<0.5

ps

Band =12.0 KHz - 20 MHz

Control Range

0

Maximum Supply Voltage

7V

Storage Temperature

-55

-

125

°C

Soldering Temp./Time

-

-

220/10

°C/s

2

Parameter

Symbol

Minimum

Typical

Maximum

Unit

1. Power supply bypass is required and a 0.1uF in parallel with a 0.01uF high frequency capacitor is recommended.

2. Figure 1 defines these parameters. Figure 2 illustrates the load used to test devices.

3. Duty cycle is defined as on-time versus period at 1.4 V for TTL, and 2.5 V for CMOS (5volt supply) and at 1.65 V for CMOS (3.3 volt operation)

Pin

Symbol

Function