VF294 Valpey Fisher, VF294 Datasheet

VF294

Manufacturer Part Number

VF294

Description

Hcmos/ttl Hybrid Vcxo Surface Mount Ceramic Package Tristate Output Standard

Manufacturer

Valpey Fisher

Datasheet

1.VF294.pdf (1 pages)

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VF194/294 Series

VF194/294

Notes:

1. Current is frequency and load dependent.

2. Tighter duty cycle available.

3. ±100ppm available at some frequencies. ±32ppm for some

4. 0–5V control voltage available for Vcc 3.3V. Nominal control

5. For higher frequency Tr/Tf is shorter.

frequencies at 3.3V is the only option.

voltage is 2.5V and setability is ±0.5V in this case.

FREQUENCY STABILITY

Code

All dimensions are typical unless otherwise specified.

Example: VF194-1-100-77.76MHz: Frequency Stability 25ppm, Duty Cycle

Absolute Pull Range (ppm) 100min. Output Tristate Control Pin #5,

Frequency 77.76MHz.

(1,27mm)

10%, Input Voltage 5.0 Volt 5%, Operating Temperature -40 C to +85 C,

DUTY CYCLE

Code

(1,143mm)

0.050"

Specification

(std.)

0.045"

Specification

VF194/VF294 Series

HCMOS/TTL Hybrid VCXO

Surface Mount Ceramic Package

Tristate Output Standard

F E AT U R E S

•

10% (std.)

ppm

Very Low Phase Jitter

Industrial Temperature Range

High Reliability

Wide Frequency Range

Miniature Package

3.3V supply available

Creating a Part Number

155.520MHz

(5,08mm)

(7,7mm)

VF294

BO1H

0.303"

0.200"

INPUT VOLTAGE

Code

OPERATIONAL TEMP. RANGE

Code

Specification

3.3 Volt 5%

5.0 Volt 5% (std.)

(2,54mm)

ABSOLUTE PULL RANGE (ppm)

Code

XXX

(MAX. 100 PPM)

0.100"

Specification

0 C to +70 C (std.)

-40 C to +85 C

(5,2mm)

0.206"

(2,29mm)

FREQ.

0.090"

Specification

Specify Deviation MIN.

75 South Street, Hopkinton, MA 01748

All specifications are subject to change without notice.

Parameter

Input Break

Down Voltage

Storage Temp.

Control Voltage

Frequency

Range

Frequency

Stability

Input Voltage

Input Current

Load

Duty Cycle

Rise/Fall Time

Logic “1” Level

Logic “0” Level

Start–up Time

Phase Jitter

Modulation BW

Input Impedance

Control Voltage

Absolute

Pull Range

Deviation Slope

Linearity

Setability (Vc

for center freq)

Tristate

Function

Enable/

Disable Time

Operating

Temperature Range

Mechanical Shock

Thermal Shock

Vibration

Soldering Conditions

Hermetic Seal

Pin Out

V C X O

Symb

Tr/Tf

Vcc

Voh

APR

Vc0

Vol

Icc

F/F

Input HIGH (>2.5V) or floating:

Input LOW (<0.5V):

800-982-5737

0°C to +70°C (–40°C to +85°C available)

Per MIL–STD–202, Method 213, Cond. E

Per MIL–STD–883, Method 1011, Cond. A

Per MIL–STD–883, Method 2007, Cond. A

230°C, for 90s, Max.

Leak rate less than 5 x 10

Pin #1–Voltage Control

Pin #3–Ground, Case

Pin #5–Tristate (194), N/C (294) Pin #6–Vcc

1 , F<52 MHz

1 , F>52 MHz

vs. Temp., Vcc

0.4V to 2.4V

20% to 80%

@Vc = 2.5V

Vcc = 5.0V

Vcc = 3.3V

Condition

Monotonic,

fm<10KHz

Max Load

Fnominal

No load

@25°C,

Overall

positive

@1.4V

508-435-6831

10 TTL gates or 50pF

0.9Vcc

–0.5

4.75

3.15

2.00

1.25

Min

±50

–55

1.5

–1

–8

atm.cc/s of helium

5.00

3.30

2.50

1.65

Typ

Fax: 508-435-5289 www.valpeyfisher.com

ACTIVE

INFINITE IMPEDANCE

Pin #2–N/C (194) Tristate (294)

Pin #4–Output

0.1Vcc

Max

+125

5.0V

3.3V

5.25

3.45

3.00

2.05

160

±25

±20

100

7.0

ppm/V

KOhm

Unit

MHz

ppm

KHz

°C

Vcc = 5.0V

Vcc = 3.3V

Standard

fj>1KHz

LV Opt.

@–3db

Note

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