VECTRON FX-104 User Manual

Product Data Sheet

FX-104

FrequencyTranslator

Features

• Output frequencies up to 777.60 MHz

• Jitter Generation OC-192 compliant

• Jitter transfer per GR-253-CORE

• Single 5 or 3.3 Vdc supply

• Locked to specified Input frequency,e.g. 8 kHz

• 1" x 0.8" x 0.25", Surface Mount (FR4 base)

Applications

• SONET / SDH / ATM

• DWDM / FDM

• DSL-PON Interconnects

• FEC (Forward Error Correction)

FX-104 Frequency Translator

Description

Vectron's FX-104 is a SAW 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
specific frequency from 170 MHz to 777.6 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-104 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
333 Hz and 170 MHz translating them to any specific

The "Input Frequency tracking capability" is the total
amount of input frequency deviation in which the FX­104 is guaranteed to track or translate. As an example,
a typical input clock would be 8 kHz ±20 ppm.The FX­104 is guaranteed to track at least ±40 ppm of error over
temperature/ 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 control voltage is getting close to the
limits of the pull range.

output frequency from 170 MHz to 777.600 MHz.

Performance Characteristics

Parameter Symbol Min Typical Max Unit

Output Frequencies 155.52 777.6 MHz
Supply Voltage, C = 5 Vdc Vcc 4.75 5.00 5.25 Vdc

D = 3.3 Vdc Vcc 3.15 3.30 3.45 Vdc
Supply Current Icc 95 125 mA
Input Signal, A = HCMOS CLKIN HCMOS ---

D = PECL CLKIN PECL --­OUTPUT, F = Comp PECL --- --- PECL --- --­VOL VOL Vcc-1.95 Vcc-1.63 V
VOH VOH Vcc-0.98 Vcc-0.75 V
Rise/Fall Time (20% to 80%) tR/t
Output Symmetry Sym 45 49/51 55 %
Jitter Generation, rms (12 kHz to 20 MHz) 0.23 1 ps
Jitter Generation, rms (cycle to cycle method) 3 5 ps
Jitter Transfer, GR-253-CORE sec 5.6.2.1.2 0.1 dB
Input Frequency Tracking Capability

(Can translate a Stratum 1,2,3,3E,4 APR ±40 ppm
or SONET Min source)

Operating Temperature Temp Range C = 0°C to +70°C

Size 25.4 x 20.32 x 6.35 mm (1.0” x 0.8” x 0.25”)

F

Temp Range F = -40°C to +85°C

250 400 ps

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

Outline Drawing

FX-104 Frequency Translator

Pin Out

Pin Symbol Function

1 CLKIN Input Frequency - The FX-104 series AC couples the input, this means the unit is capable of

handling HCMOS, LvHCMOS, PECL and LvPECL input signals.

(For Input Frequencies below 1 MHz only HCMOS and LvHCMOS are supported)
2 GND Ground
3 LD Lock Detect

(output) Logic “1” indicates a locked condition

Logic “0” indicates that no input signal is present or the input signal has moved out of the

lock range.
4 Monitor PLL/ VCXO control voltage

(Output) Under locked conditions, should be >0.3V and <3.0V for the 3.3 volt option or >0.5V and

<4.5V for the 5 volt option.Input frequency may be out of range if voltage exceeds these limits.
5 --- Missing
6 NC No Connection
7 GND Ground
8 Enable No connect = Output enabled

Disable Logic “0” = Output disabled

9 Out Output

10 COUT Complementary Output
11 NC No Connection
12 Select A Do not Exceed Vcc
13 Select B Do not Exceed Vcc
14 NC No Connection
15 GND Ground
16 Vcc Power Supply Voltage (5 Vdc or 3.3Vdc)

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

FX-104 Frequency Translator

Pad Layout

Recommended Reflow Profile

NOTE: The FX-100 series should not be subjected to a wash process that will immerse it in solvents. NO CLEAN is the rec-

ommended procedure. The FX-100 series has been designed for pick and place reflow soldering. The suggested reflow pro­file is shown above. The FX-100 series may be reflowed once, and should not be reflowed in the inverted position.

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