FX-101 Frequency Translator

Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web:www.vectron.com

Output Frequencies

1.544

77.76

MHz

Supply Voltage,

C = 5 Vdc

4.75

5.00

5.25

Vdc

D = 3.3 Vdc

3.15

3.30

3.45

Vdc

Supply Current

45

70

mA

Input Signal, “0”

A = HCMOS

CLKIN

0

Vdc

Input Signal, “1”

A = HCMOS

CLKIN

5.5

Vdc

OUTPUT,

F = Comp PECL

--

--

PECL

--

--

Vdc

Vdc

Rise / Fall Time (77.76 MHz)

0.5

2

ns

OUTPUT,

A = HCMOS

--

--

HCMOS

--

--

Vdc

0.1

Vdc

1.4

2.5

ns

Output Symmetry,

Sym

45

55

%

Freq >62.208MHz and 3.3V

Sym

40

60

%

0.5

1

ps

3

5

ps

Jitter Transfer, GR-253-CORE sec 5.6.2.1.2

0.1

dB

Input Frequency Tracking Capability

(Can translate Stratum 1,2,3,3E,4 or SONET Min)

APR

±50

ppm

Operating Temperature

Temp Range C = 0°C to +70°C

Temp Range F = -40°C to +85°C

Size

25.4 x 20.32 x 5.08 (1.0” x 0.8” x 0.20”)

Performance Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Description

Vectron's FX-101 is a crystal based frequency translator

which is used to translate any input frequency such as 8

kHz, 1.544 MHz, 2.048 MHz, 19.440 MHz etc.to any spe-

cific frequency less than or equal to 77.76 MHz. The input

frequency does not have to be a 50/50% duty cycle and

as an example can be an 8 kHz signal with a logic high

"on time" of only 1us, such as a BITS clock. The FX-101

also has the ability to translate any of 1 to 4 different input

frequencies to one common output frequency, such as

input frequencies of 8 kHz and 1.544 MHz and 19.44 MHz

and any other frequency between 8 kHz and 170 MHz

translating them to an output frequency up to 77.76 MHz.

The "Input Frequency tracking capability" is the total

amount of input frequency deviation in which the FX-101

is guaranteed to track or translate. As an example, a typ-

ical input clock would be 8 kHz ±20 ppm.The FX-101 is

guaranteed to track at least ±50 ppm of error over tem-

perature/aging/power supply and is more than twice what

most applications require. The PLL control voltage is

brought out through a 470K ohm resistor.This would allow

for the use of external circuitry (analog comparators or an

A/D converter plus a processor) to detect when the con-

trol voltage is getting close to the limits of the pull range.