FX-104-CFC-D3DS中文资料

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)

Product Data Sheet

FX-104

Frequency

Translator

FX-104 Frequency Translator

Performance Characteristics 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 fre-quency, such as input frequencies of 8 kHz and 1.544MHz and 19.44 MHz and any other frequency between 333 Hz and 170 MHz translating them to any specific output frequency from 170 MHz to 777.600 MHz.

The "Input Frequency tracking capability" is the total amount of input frequency deviation in which the FX-104 is guaranteed to track or translate.As an example,a typical input clock would be 8 kHz ±20 ppm.The FX-104 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 Frequencies 155.52777.6MHz Supply Voltage,C = 5 Vdc V cc 4.75 5.00 5.25Vdc D = 3.3 Vdc V cc 3.15

3.30 3.45Vdc Supply Current I cc 95125

mA Input Signal,A = HCMOS CLKIN HCMOS ---D = PECL CLKIN PECL ---OUTPUT ,F = Comp PECL

------PECL

------V OL

V OL V cc -1.95V cc -1.63V V OH

V OH V cc -0.98V cc -0.75V Rise/Fall Time (20% to 80%)t R /t F 250400ps Output Symmetry

Sym

45

49/5155

%Jitter Generation, rms (12 kHz to 20 MHz)0.231ps Jitter Generation, rms (cycle to cycle method)3

5ps Jitter Tr ansfer, 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 T emperature Temp Range C = 0°C to +70°C T emp Range F = -40°C to +85°C Size

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

Parameter

Symbol Min

Typical

Max

Unit

FX-104 Frequency

Translator

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)2GND 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 6NC No Connection 7GND Ground

8Enable No connect = Output enabled Disable Logic “0”= Output disabled 9Out Output

10COUT Complementary Output 11NC No Connection 12Select A Do not Exceed Vcc 13Select B Do not Exceed Vcc 14NC No Connection 15GND Ground

16

V cc

Power Supply Voltage (5 Vdc or 3.3Vdc)

Pin Out

Outline Drawing

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 pro-file is shown above.The FX-100 series may be reflowed once, and should not be reflowed in the inverted position.

FX-104 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 d ev i c e, proper precautions should be taken to avo i d exposure to electrostatic discharge (ESD) during han-dling 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 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 para-meters where resistance = 1500 ohms, capacitance =100pf)

ESD Threshold Voltage

Model

Threshold Unit Human Body (HBM)

500

V min

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

*Note:VI highly recommends either a linear

regulator or bypass capacitors;10 uF, 0.1 uF

and a 100pF capacitor would be typical.

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.

FX-104 Frequency Translator FX-100 Series Selection Guide

FITS / MTBF Calculations

Per Bellcore TR-NWT-000332,GF @ +50oC.

Typical - FX-104-DFC-A1P8

FITs = 316.88

MTBF (Hours) = 3,155,819

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.

FX-104 Frequency Translator

Evaluation Board

Evaluation boards are available upon request.

LED Lights Up When Locked

Input Frequency

Edge Mount SMA 3 Places

Output Frequency

For FX-101 with PECL output Place Connector in the “0”position for Enable “1”position Disable

(In disable position as shown)

Input Select Freq.A B f 1=00f 2=01f 3=10f 4

=

1

1

VCXO Monitor

Supply Voltage

Ground

FX-104 Frequency Translator

Input 1Input 2Input 3Input 4Output

12.8 MHz------------622.08 MHz

19.44 MHz51.84 MHz155.52 MHz----622.08 MHz

22.2171 MHz44.4343 MHz77.76 MHz----622.08 MHz

8 kHz22.2171 MHz155.52 MHz----622.08 MHz

8 kHz19.44 MHz77.76 MHz155.52 MHz622.08 MHz

10 MHz155.52 MHz--------622.08 MHz

19.44 MHz38.88 MHz77.76 MHz155.52 MHz622.08 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 MHz38.88 MHz77.76 MHz----666.5143 MHz

22.2171 MHz------------666.5143 MHz

77.76 MHz------------666.5143 MHz

20.1416 MHz------------690.5692 MHz Other Standard Input / Output Combinations

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.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 factor y.

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.

155.5200 177.7371 625.0000 669.1281 765.5906156.2500

311.0400

627.3296

669.3265

767.2500

161.1328

622.0800

644.5313

690.5692

777.6000

166.6286

624.7048

666.5143

719.73439

VS-500 Available Frequencies (MHz)

FX-104 Frequency Translator

How to Order

FX-104-D-A8

FX-104 Frequency Translator

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