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Product Data Sheet
FX-500
Low Jitter Frequency Translator
Features
* Complete Frequency Translator to 77.760 MHz * 3.3 Volt or 5.0 Volt Supply * Capable of locking to an 8 kHz pulse/ BITS clock * Tri-State Output allows board test * Lock Detect * J-Lead Ceramic Package * Advanced Custom ASIC Technology * Absolute Pull Range Performance to 100 ppm * CMOS Output * Commercial or Industrial Temperature Range * EIA Compatible Tape and Reel Packaging
Description
The FX-500 is a complete crystal-based frequency translator used in communications applications where low jitter is paramount. Performance advantages include superior jitter performance, high output frequencies and small package size. Advanced custom ASIC technology results in a highly robust, reliable and predictable device. The device is packaged in a 6 pin J-Lead ceramic package with a hermetic seam welded lid.
Applications
* * * * * Frequency Translation, Clock Smoothing Telecom - SONET/SDH/ATM/DWDM Datacom - DSLAM, DSLAR, Access Nodes Cable Modem Head End Base Station - GSM, CDMA
Figure 1. FX-500 Block Diagram
FX-500 Low Jitter Frequency Translator
Performance Characteristics
Electrical Performance
Parameter Output Frequency4 Supply Voltage
1
Symbol f0 VDD VDD IDD IDD IDD VIL VIH fIN
Minimum 0.100 3.0 4.5
Typical 3.3 5.0 15 25 35
Maximum 77.76 3.6 5.5 20 30 40 0.3* VDD
Units MHz V V mA mA mA V V Hz ns V V ns ns % ppm
Supply Current @ 19.44MHz 48.408MHz 77.760MHz Input Input Low Level Voltage Input High Level Voltage Frequency Pulse Width Output2 Output High Level Voltage Output Low Level Voltage Transition times2 Rise Time Fall Time Duty Cycle3 60MHz >60MHz Absolute Pull Range Leakage Current of Input Loop Bandwidth (-3 dB), 8kHz input Jitter
(Application: 8 kHz to 77.760 MHz translation)
0.7*VDD 1k 6 0.9*VDD
77.76M
VOH VOL tR tF D APR IC BW
0.1*VDD 1.8 1.8 45 40 See Part Numbering -1 10 4.7 44 0.003 14mm x 9mm x 4.5 mm 1 3.0 3.0 55 60
A Hz ps ps UI
rms peak/peak peak/peak Size
1. A 0.1 F low frequency tantalum bypass capacitor in parallel with a 0.01 F high frequency ceramic capacitor is recommended. 2. Figure 2 defines the waveform parameters. Figure 3 illustrates the standard test conditions under which these parameters are specified and tested. 3. Duty cycle is defined as (on time period), with VS = VDD/2, per Figure 2. Duty cycle is measured with a 15pf load per Figure 3. 4. Other frequencies may be available, please contact factory.
.
.
Figure 2. Output Waveform
Figure 3. Output Test Conditions (25 5C)
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * Web: www.vectron.com
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FX-500 Low Jitter Frequency Translator
Outline Diagram
6 5 4
Pad Layout
FX-500-LAC-GNK FX-500-LAC-GNK 8K000/77M760 8K000/77M76 VI 142 1 2 3
Pin Out
Pin # 1 2 3 4 5 6 Symbol fIN Tri-state1 GND Fo LD2 VDD Function Input Frequency Logic Low = Output Disable / Logic High = Output Enabled Case and Electrical Ground Output Frequency Lock Detect Power Supply Voltage (3.3 V 0.3 or 5.0 V 0.5)
1. Tristate is driven to logic high or logic low; there is no internal pull up or pull down resistor. 2. LD is an open collector output requiring a 30k ohm pullup resistor to VDD. LD output is logic high under locked condition, logic low for no input at fIN, and for "out-of-lock" condition LD transitions between logic low and logic high at the phase detector frequency.
Tape and Reel
J F D A E C G B L I
H
K
Tape and Reel Dimensions (mm)
Tape Dimensions Product FX-500 A 24 B 11.5 C 1.5 D 4 E 12 Reel Dimensions F 1.78 G 21 H 13 I 100 J 5 K 25 L 330 200 # Per Reel
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * Web: www.vectron.com
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FX-500 Low Jitter Frequency Translator
Absolute Maximum Ratings
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.
Parameter
Power Supply Storage Temperature
Symbol
VDD Tstorage
Ratings
7 -55/125
Unit
Vdc C
Reliability
Absolute Maximum Ratings
Parameter
Mechanical Shock Mechanical Vibration Lead Solderability Gross and Fine Leak
Conditions
MIL-STD-883 MIL-STD-883 MIL-STD-883 MIL-STD-883 Method Method Method Method 2002/Test A 2007/Test A 2003 1014
Handling Precautions Although ESD protection circuitry has been designed into this device, proper precautions should be taken when handling and mounting. VI employs a Human Body Model and a charged device model for ESD-susceptibility testing and design protection evaluation. ESD thresholds are dependent on the circuit parameters used to define the model. Although no industry wide standard has been adopted for the CDM, a standard HBM of resistance = 1500 and capacitance = 100pf is widely used and therefore can be used for comparison purposes. ESD Ratings
Model
Mechanical Shock Mechanical Vibration
Minimum
1000V 1000V
Conditions
MIL-STD-883, Method 3015 JESD22-C101
Figure 6. Suggested Reflow Profile
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * Web: www.vectron.com
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FX-500 Low Jitter Frequency Translator
Standard Frequencies
1.000 kHz A1 1.544 MHz B3 10.000 MHz C4 19.440 MHz D6 27.000 MHz F4 38.880 MHz H5 62.208 MHz J8 4.000 kHz A2 2.048 MHz B4 12.352 MHz D1 20.000 MHz E2 30.720 MHz H1 40.960 MHz J1 62.500 MHz J9 8.000 kHz A3 3.088 MHz B6 13.000 MHz D3 20.480 MHz E4 32.000 MHz H2 44.736 MHz J3 65.536 MHz J6 16.000 kHz A4 4.096 MHz B5 15.000 MHz D4 24.576 MHz E6 32.768 MHz H3 49.152 MHz J7 74.152 MHz K1 64.000 kHz A5 6.480 MHz C2 16.384 MHz D5 24.704 MHz E7 34.368 MHz H6 51.840 MHz J4 74.250 MHz K7 1.024 MHz B2 8.192 MHz C3 18.432 MHz D7 26.000 MHz F3 37.056 MHz H4 61.440 MHz J5 77.760 MHz K2
Note 1: Other frequencies are available upon request, please contact VI for details SS is code for non-standard frequencies, list the frequency after the part number. Note 2: Not all combinations are possible. Note 3: Output frequency must be equal to or greater than the input frequency. The ratio of fO/fIN must be an Integer. Also, the output frequency must be equal to or greater than 100 kHz.
Ordering Information
FX-500
Product Family FX=Freq. Translator Package 500: 14.0 x 9.0 x 4.5 mm Input K: 5.0V o.5 Vdc L: 3.3V 0.3 Vdc Output A: CMOS Temperature Range C: 0 to 70C F: -40 to 85C
XXX
XXX
XX
XX
MHz
Output Frequency (B2-K2 from table) Input Frequency (A1-K2 from table) Duty Cycle J = 45/55 K = 40/60 Other N = n/a Absolute Pull Range G = 50 ppm N = 80 ppm H = 100 ppm
EXAMPLE: FX-500-LAC-GNK-A3-K2 FX-500, 3.3V, CMOS output, 0 to 70C operating temperature, 50 ppm APR, 40/60 % duty cycle with an 8kHz input and 77.760MHz output
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * Web: www.vectron.com
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FX-500 Low Jitter Frequency Translator
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.
(c)2001, Vectron International.
Rev.25Mar02, 20Aug02

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