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Preliminary Data Sheet
FX-424
Low Jitter Frequency Translator Features
* Quartz-based PLL for Ultra-Low Jitter * Frequency Translation up to 850 MHz * Accepts up to 4 ext.-muxed clock inputs * CMOS / LVDS / LVPECL Inputs compatible * Differential LVPECL or LVCMOS Output * Lock Detect / Loss of Signal Alarms * Output Disable * 20.3 x 13.7 x 5.1 mm SMT package * RoHS/Lead Free Compliant
Description
The FX-424 is a precision quartz-based frequency translator used to translate an input frequency such as 8 kHz, 1.544 MHz, 2.048 MHz, 19.44 MHz etc. to any specific frequency from 1.544 MHz to 850 MHz. The FX-424 can perform either up or down frequency conversion. The FX-424's superior jitter performance is achieved through the use of a precision VCXO or VCSO. With the use of an external multiplexer, up to 4 different input clocks can be translated to a common output frequency.
Applications
* Wireless Infrastructure * 10 Gigabit FC * 10GbE LAN / WAN * OADM and IP Routers * Test Equipment * Military Communcations
Figure 1. Functional Block Diagram
Vectron International, 267 Lowell Road, Hudson, NH 03051 Page 1 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 18Dec05
FX-424 Low Jitter Frequency Translator
Table 1. Electrical Performance
Parameter Frequency
Input Frequency Capture Range Output Frequency FIN APR FOUT VCC ICC FIN FIN 0.008 40 1.544 3.13 3.3 45 CMOS LVPECL LVCMOS VOCM VOH VOL VP-P tR tF SYM n n n n n n n J TOP -40 VCC-1.5 VCC-1.025 VCC-1.810 VCC-1.3 VCC-0.950 VCC-1.700 700 0.5 0.5 50 -64/-27 -95/-55 -123/-85 -143/-110 -146/-130 -146/-146 -146/-146 50 85 VCC-1.1 VCC-0.880 VCC-1.620 V V V mV-pp ns ns % dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz ps RMS C 170 850 3.46 60 MHz ppm MHz V mA 1,2,3 1,2,3 1,2,3 2,3 3 2,3 2,3 2,3 2,3 2,3 2,3 4,5 4,5 2,3
Symbol
Minimum
Typical
Maximum
Units
Notes
Supply
Voltage Current (No Load)
Input Signal
CMOS LVPECL
LVCMOS Output (Option A) Differential Output (Option F)
Common Mode Output Voltage Output High Voltage Output Low Voltage Peak-to-Peak Output Voltage Rise Time Fall Time Symmetry
45
55
SSB Phase Noise, FOUT = 155.52/622.08
@ 10 Hz Offset @ 100 Hz Offset @ 1 kHz Offset @ 10 kHz Offset @ 100 kHz Offset @ 1 MHz Offset @ 10 MHz Offset
5,6
Jitter Generation Operating Temperature
1. 2. 3. 4. 5. 6.
5, 6 1,3
See Standard Frequencies and Ordering Information. Parameters are tested with production test circuit below (Fig 2). Parameters are tested at ambient temperature with test limits guard-banded for specified operating temperature. Measured from 20% to 80% of a full output swing (Fig 3). Not tested in production, guaranteed by design, verified at qualification. The FX-424 phase noise and jitter performance can be optimized for specific applications. Please consult with Vectron's Application Engineers for more information.
Figure 2. Test Circuit
Figure 3. LVPECL Waveform
Vectron International, 267 Lowell Road, Hudson, NH 03051 Page 2 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 18Dec05
FX-424 Low Jitter Frequency Translator
Figure 4. Pin Configuration
Table 2. Pin Out
Pin #
1 2 3 4 5
Symbol
SEL0 SEL1 GND
I/O
I I GND
Level
LVTTL LVTTL Supply
Function
Input Frequency Select* Input Frequency Select* Case and Electrical Ground Not present VCXO Control Voltage Monitor Under locked conditions VMON should be > 0.3V and <3.0V. The input frequency may be out of range if the voltage exceeds these levels. Output Disable Disabled = Logic "1" Enabled = Logic "0" or no connect Case and Electrical Ground Frequency Output Complementary Frequency Output - Note for LVCMOS option this pad will be tied to GND. Lock Detect Locked = Logic "1" Loss of Signal = Logic "0" Case and Electrical Ground Case and Electrical Ground Input Frequency. The FX-424 series AC couples the input for handling of either LVCMOS or LVPECL input signals. Power Supply Voltage (3.3 V 5%)
VMON
O
Analog
6 7 8 9 10 11 12 13 14
OD GND FOUT CFOUT LD GND GND FIN VCC
I GND O O or GND O GND GND I VCC
LVCMOS Supply LVPECL or LVCMOS LVPECL or LVCMOS LVCMOS Supply Supply LVCMOS or LVPECL Supply
* For applications requiring two to four input frequencies, Vectron will assign a unique part number and the Input Frequency versus SEL[1:0] settings will be provided in a Specification Control Drawing. For single input configurations it is recommended that SEL0 and SEL1 are tied to ground.
Vectron International, 267 Lowell Road, Hudson, NH 03051 Page 3 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 12Dec05
FX-424 Low Jitter Frequency Translator
Outline Diagram
Suggested Pad Layout
Figure 5.
Figure 6.
Table 3. Absolute Maximum Ratings
Parameter
Power Supply Output Current Storage Temperature Soldering Temp/Time
Symbol
VCC IOUT TS TLS
Ratings
0 to 6 -55 to 125 260/40
Unit
V mA C C/sec
Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional operation is not implied at these or any other conditions in excess of conditions represented in the operational sections of this data sheet. Exposure to absolute maximum ratings for extended periods may adversely affect device reliability.
Reliability
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR reflow simulation. The FX-424 family is undergoing the following qualification tests:
Environmental Compliance
Parameter Mechanical Shock Mechanical Vibration Solderability Gross and Fine Leak Resistance to Solvents Conditions MIL-STD-883, Method 2002 MIL-STD-883, Method 2007 MIL-STD-883, Method 2003 MIL-STD-883, Method 1014 MIL-STD-883, Method 2016
Vectron International, 267 Lowell Road, Hudson, NH 03051 Page 4 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 18Dec05
FX-424 Low Jitter Frequency Translator
eliability
Handling Precautions
Although ESD protection circuitry has been designed into the FX-424 proper precautions should be taken when handling and mounting. VI employs a human body model (HBM) and a charged-device model (CDM) for ESD susceptibility testing and design protection evaluation
ESD Ratings
Model Human Body Model Charged Device Model Minimum 500 V 500 V Conditions MIL-STD 883, Method 3015 JEDEC, JESD22-C101
Reflow Profile (IPC/JEDEC J-STD-020C) Parameter Symbol
PreHeat Time Ramp Up Time Above 217 oC Time To Peak Temperature Time At 260 oC Ramp Down tS R UP tL t AMB-P tP R DN
Value
60 sec Min, 180 sec Max 3 oC/sec Max 60 sec Min, 150 sec Max 480 sec Max 20 sec Min, 40 sec Max 6 oC/sec Max
Temperature (DegC)
The FX-424 is being qualified to meet the JEDEC standard for Pb-Free assembly. The temperatures and time intervals listed are based on the Pb-Free small body requirements. The temperatures refer to the topside of the package, measured on the package body surface. The FX-424 should not be subjected to a wash process that will immerse it in solvents. NO .CLEAN is the recommended procedure. The FX-424 has been designed for pick and place reflow soldering. The FX-424 may be reflowed once and should not be reflowed in the inverted position.
260
tL R tP R DN tS t AMB-P
217 200
150
25
Time (sec)
Vectron International, 267 Lowell Road, Hudson, NH 03051 Page 5 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 12Dec05
FX-424 Low Jitter Frequency Translator
Application Circuits
+3.3V
10uF 0.1uF 100pF
+3.3V
14
R1 130
R1 130
VCC
FOUT CFOUT
8
Z = 50
Output Frequency Input Frequency
13
FIN
9
Z = 50
R2 82 R2 82
FX-424
1 2
SEL0 SEL1 VMON
5 10
6
OD
LD
3
7
11
12
Figure 7. Single Input Frequency Translation - LVPECL Termination
+3.3V
10uF 0.1uF 100pF
+3.3V
Input Frequencies
F1 F2 F3 F3 00 01
13
14
R1 130
R1 130
VCC
FOUT CFOUT
8
Z = 50
Output Frequency
FIN
9
Z = 50
R2 82 R2 82
10 11
6
FX-424
OD
1 2
SEL0 SEL1
VMON LD
5 10
3
7
11
12
Figure 8. Four Input Frequencies Translated to Common Output Frequency - LVPECL Termination
Vectron International, 267 Lowell Road, Hudson, NH 03051 Page 6 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 18Dec05
FX-424 Low Jitter Frequency Translator Tape and Reel (EIA-481-2-A)
Po
ODo W2
F W D C N A
P1
W1
B
Tape Dimensions (mm)
Dimension Tolerance
FX-424
Reel Dimensions (mm)
Do Typ
1.5
W Typ
44
F Typ
20.2
Po Typ
4
P1 Typ
20
A Typ
330
B Min
1.5
C Typ
13
D Min
20.2
N Min
100
W1 Typ
44.4
W2 Max
50.4
# Per Reel 100
Vectron plans to offer both tape-n-reel and matrix trays as packaging options for the FX-424. The standard shipping container for volume production is a matrix tray. The trays are 100% recyclable and offer the added feature that they can be continuously fed into a pick-n-place machine. (Matrix tray drawing not currently available)
Vectron International, 267 Lowell Road, Hudson, NH 03051 Page 7 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 12Dec05
FX-424 Low Jitter Frequency Translator Standard Frequencies
8 kHz 16 kHz 64 kHz 1.024 MHz 1.544 MHz 2.048 MHz 4.096 MHz 8.192 MHz 13.000 MHz 16.384 MHz 19.440 MHz 20.480 MHz
Not all combinations are possible.
C D E F H J K L M N P R
26.00 MHz 27.00 MHz 38.88 MHz 44.736 MHz 51.84 MHz 61.44 MHz 77.76 MHz 82.944 MHz 112.000 MHz 139.264 MHz 155.520 MHz 166.6286 MHz
T W X Y 0 1 2 3 4 5 6 7
622.08 MHz 666.5143 MHz
8 9
Special SCD
S
Ordering Information
For Additional Information, Please Contact:
USA: Vectron International, 267 Lowell Rd, Hudson, NH 03051 . . . .Tel: 1-88-VECTRON-1 EUROPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +49 (0) 7268 8010 ASIA: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +86-21-5048-0777 Fax: 1-888-FAX-VECTRON Fax: +49 (0) 7268 8012 81 Fax: +86-21-5048-1881
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 Page 8 of 8
Tel: 1-88-VECTRON-1 * Web: www.vectron.com Rev: 18Dec05

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