Vectron FX-500-LAC-GNJ-A1-B2 Low jitter frequency translator Datasheet

Product Data Sheet
FX-500
Low Jitter Frequency Translator
Features
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.
• 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
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
Minimum
f0
0.100
VDD
VDD
3.0
4.5
Supply Current @ 19.44MHz
48.408MHz
77.760MHz
IDD
IDD
IDD
Input
Input Low Level Voltage
Input High Level Voltage
Frequency
Pulse Width
VIL
VIH
fIN
Output2
Output High Level Voltage
Output Low Level Voltage
Transition times2
Rise Time
Fall Time
Absolute Pull Range
APR
Maximum
Units
77.76
MHz
3.3
5.0
3.6
5.5
V
V
15
25
35
20
30
40
mA
mA
mA
0.3* VDD
V
V
Hz
ns
77.76M
0.9*VDD
tR
tF
D
Loop Bandwidth (-3 dB), 8kHz input
Typical
0.7*VDD
1k
6
VOH
VOL
Duty Cycle3 ≤60MHz
>60MHz
Leakage Current of Input
Jitter
Symbol
0.1*VDD
V
V
3.0
3.0
ns
ns
55
60
%
1.8
1.8
45
40
See Part Numbering
IC
-1
ppm
1
BW
µA
10
Hz
4.7
44
0.003
ps
ps
UI
(Application: 8 kHz to 77.760 MHz translation)
rms
peak/peak
peak/peak
Size
14mm x 9mm x 4.5 mm
1. A 0.1 µF low frequency tantalum bypass capacitor in parallel with a 0.01 µF 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 timeperiod), 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 ±5°C)
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
2
FX-500 Low Jitter Frequency Translator
Outline Diagram
6
5
Pad Layout
4
FX-500-LAC-GNK
FX-500
-LAC-GNK
8K000/77M760
8K000/77M76
VI 142
1
2
3
Pin Out
Pin #
Symbol
Function
1
fIN
Input Frequency
2
Tri-state1
Logic Low = Output Disable / Logic High = Output Enabled
3
GND
Case and Electrical Ground
4
Fo
Output Frequency
5
LD2
Lock Detect
6
VDD
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
G
C
B
A
I
L
E
H
K
Tape and Reel Dimensions (mm)
Tape Dimensions
Reel Dimensions
# Per Reel
Product
A
B
C
D
E
F
G
H
I
J
K
L
FX-500
24
11.5
1.5
4
12
1.78
21
13
100
5
25
330
200
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
3
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
Symbol
Ratings
Unit
Power Supply
VDD
7
Vdc
Storage Temperature
Tstorage
-55/125
°C
Reliability
Absolute Maximum Ratings
Parameter
Conditions
Mechanical Shock
Mechanical Vibration
Lead Solderability
Gross and Fine Leak
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 =
1500Ω and capacitance = 100pf is widely used and therefore can be used for comparison purposes.
ESD Ratings
Model
Minimum
Conditions
Mechanical Shock
1000V
MIL-STD-883, Method 3015
Mechanical Vibration
1000V
JESD22-C101
Figure 6. Suggested Reflow Profile
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
4
FX-500 Low Jitter Frequency Translator
Standard Frequencies
1.000 kHz A1
4.000 kHz A2
8.000 kHz A3
16.000 kHz A4
64.000 kHz A5
1.024 MHz B2
1.544 MHz B3
2.048 MHz B4
3.088 MHz B6
4.096 MHz B5
6.480 MHz C2
8.192 MHz C3
10.000 MHz C4
12.352 MHz D1
13.000 MHz D3
15.000 MHz D4
16.384 MHz D5
18.432 MHz D7
19.440 MHz D6
20.000 MHz E2
20.480 MHz E4
24.576 MHz E6
24.704 MHz E7
26.000 MHz F3
27.000 MHz F4
30.720 MHz H1
32.000 MHz H2
32.768 MHz H3
34.368 MHz H6
37.056 MHz H4
38.880 MHz H5
40.960 MHz J1
44.736 MHz J3
49.152 MHz J7
51.840 MHz J4
61.440 MHz J5
62.208 MHz J8
62.500 MHz J9
65.536 MHz J6
74.152 MHz K1
74.250 MHz K7
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
X X X
X X X
XX
XX
MHz
Output Frequency
(B2-K2 from table)
Product Family
FX=Freq. Translator
Input Frequency
(A1-K2 from table)
Package
500: 14.0 x 9.0 x 4.5 mm
Duty Cycle
J = 45/55
K = 40/60
Input
K: 5.0V ±o.5 Vdc
L: 3.3V ±0.3 Vdc
Other
N = n/a
Output
A: CMOS
Absolute Pull Range
G = ±50 ppm
N = ±80 ppm
H = ±100 ppm
Temperature Range
C: 0 to 70°C
F: -40 to 85°C
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
5
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.
©2001, Vectron International.
Rev.25Mar02, 20Aug02
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