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
Standard Shipping Method
FX-104 Frequency Translator
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 tapen-reel.
Handling Precautions
Although protection circuitry has been designed into this
d ev i c e, proper precautions should be taken to avo i d
exposure to electrostatic discharge (ESD) during handling and mounting. VI employs a human-body model
(HBM) for ESD-susceptibility testing and protection
design eva l u a t i o n .
ESD Threshold Voltage
Model Threshold Unit
Human Body (HBM) 500 V min
ESD voltage thresholds are dependent on the circuit
p a rameters used to define the mode. The HBM ESD
threshold presented here was obtained by using parameters where resistance = 1500 ohms, capacitance =
100pf)
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
FX-104 Frequency Translator
Typical Application
All components outside the dotted line box are user supplied components.This is just one possbile
configuration of the FX-104. For additional information about your specific needs, please contact our factory.
Output Load Configuration
All components outside the dotted line box are user supplied components
and/or connections. This is just one possible configuration of the FX-104.
For additional information about your specific needs please contact our Factory.
*Note: VI highly recommends either a linear
regulator or bypass capacitors; 10 uF, 0.1 uF
and a 100pF capacitor would be typical.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
FX-100 Series Selection Guide
FX-104 Frequency Translator
FITS / MTBF Calculations
Per Bellcore TR-NWT-000332, GF @ +50ºC.
Typical - FX-104-DFC-A1P8
FITs = 316.88
MTBF (Hours) = 3,155,819
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
FX-104 Frequency Translator
FAQ’s
Q: What are the different input frequencies that are available?
A: The FX-100 series is able to handle any input frequency between 8 kHz and 170 MHz.
(A list of standard frequencies is available on pages 9 & 10)
Q: How many different input frequencies can a specific FX-104 accept?
A: Each FX-104 can be programmed to accept up to 4 different frequencies.
Q: If there is only one input pin, how can your unit accept 4 different frequencies?
A: The user is required to supply a multiplexer which would switch between the different input
frequencies.The multiplexers’select pins would need to be sync’d to the select pins of the FX-104.
(See The Typical Application illustrated on page 6)
Q: Can a single FX-104 handle an application for 4 input frequencies of 8 kHz, 19.44, 77.76 and 155.52 MHz
all being translated to 622.08 MHz, with the 155.52 MHz input being LvPECL and the others HCMOS?
A: Yes; since the FX-104 AC couples the input signal, this combination can be supported.
Q: What is the lock time for the FX-104?
A: The exact lock time will depend on the specific input frequency. It should be noted that in all cases
the lock time will be significantly less than 1 second.
Q: I asked for a FX-104-DFC-A2S8 with 19.44 and 155.52 MHz for the input frequencies and was given a
Source Control Drawing (SCD) number of FX-104-DFC-S5999. Why was a new number assigned?
A: Whenever there are multiple input frequencies, we need to assign a SCD for the unit so that we can
include a table indicating what the logic levels need to be on pins 12 and 13 to control the unit per
the correct input frequency.
Q: What are the exact jitter transfer specs that the FX-104 series meets?
A: The FX-104 meets the stringent jitter transfer specs in GR-253 for Category II jitter (Section 5.6.2.1.2)
for all OC-n levels.
Q: My circuit card is already laid out for the FX-102, Is the FX-104 footprint compatible?
A: Yes;The FX-104 package is a drop in replacement for the FX-102 package.The only difference is in
the logic level for the Output Disable/Enable pin.They are opposite between the FX-102 and FX-104.
However letting pin 8 float will allow both units to be enabled.
Q: What type of noise on the supply line can the FX-104 suppress?
A: The FX-104 is designed to clean up noise on the Input Clock Signal, it is not designed to clean up
noisy power supplies. If excessive noise is present on the supply line it may degrade the output jitter
performance. Additional external filtering may be required. Please consult with your power supply
vendor on the best way to filter noise on your supply line.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Evaluation Board
FX-104 Frequency Translator
Input
Frequency
Ground
VCXO
Monitor
Supply
Voltage
PECL Load Voltage:
Vcc- 2V
Edge
Mount
SMA
3 Places
Output
Frequency
LED
Lights
Up
When
Locked
Input Select
For FX-101 with PECL output
Place Connector in the
“0” position for Enable
“1” position Disable
(In disable position as shown)
Evaluation boards are available upon request.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Freq. A B
f
1
f
2
f
3
f
4
= 0 0
= 0 1
= 1 0
= 1 1
FX-104 Frequency Translator
Other Standard Input / Output Combinations
Input 1 Input 2 Input 3 Input 4 Output
12.8 MHz ---- ---- ---- 622.08 MHz
19.44 MHz 51.84 MHz 155.52 MHz ---- 622.08 MHz
22.2171 MHz 44.4343 MHz 77.76 MHz ---- 622.08 MHz
8 kHz 22.2171 MHz 155.52 MHz ---- 622.08 MHz
8 kHz 19.44 MHz 77.76 MHz 155.52 MHz 622.08 MHz
10 MHz 155.52 MHz ---- ---- 622.08 MHz
19.44 MHz 38.88 MHz 77.76 MHz 155.52 MHz 622.08 MHz
22.217142 MHz ---- ---- ---- 622.08 MHz
125 MHz ---- ---- ---- 625.00 MHz
156.25 MHz ---- ---- ---- 625.00 MHz
20.1416 MHz ---- ---- ---- 644.5313 MHz
161.1328 MHz ---- ---- ---- 644.5313 MHz
19.44 MHz 38.88 MHz 77.76 MHz ---- 666.5143 MHz
22.2171 MHz ---- ---- ---- 666.5143 MHz
77.76 MHz ---- ---- ---- 666.5143 MHz
20.1416 MHz ---- ---- ---- 690.5692 MHz
The combinations above are just a small sample of
what is possible with the FX-104 series.
The FX-104 uses Vectron International’s VS-500
VCSO and as such can support any output frequency
that is available with the VS-500. The list below shows
the available frequencies for the VS-500.
VS-500 Available Frequencies (MHz)
155.5200
177.7371
625.0000
669.1281
765.5906
156.2500
311.0400
627.3296
669.3265
767.2500
Vectron International will support all FEC rates for
SONET, 10 GigB and 10.3125 GigB applications. If
you do not see a frequency option listed that you
need, please contact the factory.
When ordering FEC rates, we ask that you also include
the FEC ratio (e.g. 255/237 x OC-3, 237/236 x OC-
3,etc....) for both the input and output frequencies.
161.1328
622.0800
644.5313
690.5692
166.6286
624.7048
666.5143
719.73439
777.6000
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Standard Frequencies
FX-104 Frequency Translator
8 kHz C
16 kHz D
64 kHz E
1.024 MHz F
1.544 MHz H
2.048 MHz J
4.096 MHz K
8.192 MHz L
13.00 MHz M
16.384 MHz N
How to Order
FX-104 - D F C - A 1 P 8
Supply Voltage
C = 5 Vdc ±5%
D = 3.3 Vdc ±5%
19.44 MHz P
112 MHz 4
20.48 MHz R
139.264 MHz 5
26.00 MHz T
155.52 MHz 6
27.00 MHz W
166.6286 MHz 7
38.88 MHz X
622.08 MHz 8
44.736 MHz Y
666.5143 MHz 9
51.84 MHz 0
61.44 MHz 1
77.76 MHz 2
Special SCD S
82.944 MHz 3
Output Frequency (6 to 9)
See Frequency Chart Above
*If not listed enter S in this block and then list the
output frequencies after the part number.
Output Type
F = Comp. PECL
Temperature Range
C = 0°C to +70°C
F = -40°C to +85°C
*If not listed or more than one input frequency a special SCD
number will be assigned at point of order.
Part Number Examples:
FX-104-DFC-D128
*FX-104-DFF-A4S2, S = 8 kHz, 19.44 MHz, 77.76 MHz, 155.52 MHz
*FX-104-CFC-A1PS, S = 625 MHz
Input Frequency (C to 7)
See Frequency Chart Above
*If not listed or more than one frequency enter S in
this block and then list all the input frequencies
after the part number.
Number of Input Frequencies
1 = 1 Input Frequency
2 = *2 Input Frequencies
3 = *3 Input Frequencies
4 = *4 Input Frequencies
Input Logic
A = HCMOS
D = PECL
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
FX-104 Frequency Translator
Visit Our Website at
www.vectron.com
For additional information please contact:
USA:Vectron International * 267 Lowell Road, Hudson, NH 03051........ Tel:1-88-VECTRON-1 * Fax:1-888-FAX-VECTRON
EUROPE: ..................................................................................................Tel: 49 (0) 3328 4784 17 * Fax: 49 (0) 3328 4784 30
ASIA:.................................................................................Tel: +86 21 28909740 / 41 / 42 Fax: +86 21 28909240 / 28909999
www.vectron.com
Vectron International reserves the right to make changes to the product(s) and/or information contained herein without notice.
No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • REV 18Oct01, 20Aug02
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