Product Data Sheet
FX-101
Frequency Translator
Features
• Output frequencies up to 77.760 MHz
• Jitter Generation OC-192 compliant
• Jitter transfer per GR-253-CORE
• Single 5.0 or 3.3 Vdc supply
• Locked to specified Input frequency, e.g. 8 kHz
• 1" X 0.8" X 0.2", Surface Mount (FR4base)
• Optional CMOS or PECL Output
Applications
• SONET / SDH / ATM
• DWDM / FDM
• DSL-PON Interconnects
• FEC (Forward Error Correction)
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 •Web: www.vectron.com
FX-101 Frequency Translator
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.
Performance Characteristics
Parameter
Output Frequencies
Supply Voltage,
Supply Current
Input Signal, “0”
Input Signal, “1”
OUTPUT,
V
OH
C
= 5 Vdc
D
= 3.3 Vdc
A
= HCMOS
A
= HCMOS
F
= Comp PECL
Symbol
V
cc
V
cc
I
cc
CLKIN
CLKIN
--
V
OH
V
OL
t
R
/t
F
--
V
OH
V
OL
t
R
/t
F
Sym
Sym
Min
1.544
4.75
3.15
0
0.7 (V
CC
)
--
V
cc
-1.025
V
cc
-1.810
--
V
CC
-0.3
Typical
5.00
3.30
45
Max
77.76
5.25
3.45
70
0.2 (V
CC
)
5.5
--
V
cc
-0.880
V
cc
-1.620
2
--
0.1
Unit
MHz
Vdc
Vdc
mA
Vdc
Vdc
--
Vdc
Vdc
ns
--
Vdc
Vdc
ns
%
%
ps
ps
dB
ppm
PECL
V
OL
Rise / Fall Time (77.76 MHz)
OUTPUT,
A
= HCMOS
V
OH
, I
OL
= 50 uA
V
OL
, I
OL
= 50 uA
Rise / Fall Time
(77.76 MHz/20% to 80%)
Output Symmetry,
Freq >62.208MHz and 3.3V
Jitter @ 77.76 MHz
(rms 12 kHz to 20 MHz)
Jitter @ 77.76 MHz
(cycle to cycle method)
Jitter Transfer, GR-253-CORE sec 5.6.2.1.2
Input Frequency Tracking Capability
(Can translate Stratum 1,2,3,3E,4 or SONET Min)
0.5
HCMOS
1.4
45
40
0.5
3
2.5
55
60
1
5
0.1
APR
Operating Temperature
Size
±50
Temp Range
C
= 0°C to +70°C
Temp Range
F
= -40°C to +85°C
25.4 x 20.32 x 5.08 (1.0” x 0.8” x 0.20”)
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Web:www.vectron.com
FX-101 Frequency Translator
Outline Drawing
Pin Out
Pin
1
Symbol
CLKIN
Function
Input Frequency
- The FX-101 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.)
Ground
Lock Detect
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.
PLL/ VCXO control voltage
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.
Missing
No Connection
Ground
HCMOS
PECL
Logic "1" (or no connect) = Output enabled
Logic "0"
= Output in high impedance
2
3
GND
LD
(output)
4
Monitor
(Output)
---
NC
GND
Tri-state
&
Enable
Disable
Out
COut
NC
Select A
Select B
NC
GND
V
cc
5
6
7
8
9
10
11
12
13
14
15
16
Logic "1"
= Output disabled
Logic "0" (or no connect) = Output enabled
Output (PECL) or HCMOS
Complementary Output (PECL) or GND for HCMOS output option
No Connection
Do not Exceed Vcc
Do not Exceed Vcc
No Connection
Ground
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-101 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 pro-
file 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
FX-101 Frequency Translator
Standard Shipping Method
The Standard ship method for volume production of the
FX-100 series is in a matrix tray. These trays are 100%
recyclable. The trays also offer the added feature that
they can be continuously feed into a pick-n-place
machine eliminating the down time required with tape-
n-reel.
Handling Precautions
Although protection circuitry has been designed into this
device, proper precautions should be taken to avoid
exposure to electrostatic discharge (ESD) during han-
dling and mounting. VI employs a human-body model
(HBM) for ESD-susceptibility testing and protection
design evaluation.
ESD voltage thresholds are dependent on the circuit
parameters used to define the mode. The HBM ESD
threshold presented here was obtained by using para-
meters where resistance = 1500 ohms, capacitance =
100pf)
ESD Threshold Voltage
Model
Human Body (HBM)
Threshold
500
Unit
V min
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Web:www.vectron.com
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