Data Sheet

VFJA923
156.25 MHz Jitter Attenuator
13mm x13mm SMD, LVPECL
Features


Low phase noise: -130 dBc/Hz @ 1 kHz
Jitter: < 0.1 ps
RoHS Status
Applications



Optical Networking, SONET / SDH
10 Gigabit Ethernet
Broadband Access
Electrical Specifications @ Vcc = 3.3V; Ta = 25°C
Parameter
Output
Frequency
Range
Input
Frequency
Range
Input Level
Output Level
Logic “1”
Output Level
Logic “0”
Phase Jitter
SSB Phase
Noise
APR
Modulation
BW
Duty Cycle
Rise / Fall
Time
Start up time
Supply
Voltage
Input Current
Operating
Temperature
Range
Enable /
Disable
Function
Enable /
Disable Time
Notes:
1.
2.
Symbol
Condition
Min
Fout
Voh
Vol
Фn
AC coupled internally
50 Ohm to Vcc-2V or
Thevenin Equivalent
MHz
MHz
See Table 1
0.4
3.3
V p-p
Note 2
Vcc-0.96
Vcc-0.81
V
Vcc-1.85
Vcc-1.65
V
150
fs (rms)
50
-100
-130
-145
-150
dBc/Hz
 20
ppm
10
Hz
45
50
55
%
0.6
ns
3
3.15
Icc
Ta
-40
3.30
@ 156.25MHz
Note 1
s
3.45
V
75
mA
+85
C
Input HIGH (>2.5V): Output Disabled (Fout=”0”; nFout=”1”)
Input LOW (<0.5V) or floating: Output Enabled
Te/Td
Note
200
20% to 80%
Vcc
Unit
0.008
12KHz to 20MHz
100Hz
1KHz
10KHz
100KHz
@ 50%
Tr/Tf
Max
156.250
Fin
Vin
Typ
100
LVCMOS
ns
Consult factory for Bandwidth options
For Fin < 20 MHz , ensure SR > 50 V/µs
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • Rev_1212
1
VFJA923
156.25 MHz Jitter Attenuator
13mm x13mm SMD, LVPECL
Absolute Maximum Ratings
Parameter
Supply Break
Down Voltage
Storage
Temperature
Symbol
Condition
Min
Typ
Max
Unit
Vcc
-0.5
4.6
V
Ts
-55
+105
C
Note
Filter
Fout
F in
R-Divider
VCXO
PFD
nFout
OD
N- Divider
Block Diagram
P/N
suffix
-001
Input Frequency
(MHz)
156.250
Output Frequency
(MHz)
156.250
P/N
suffix
-002
Input Frequency
(MHz)
25.00
Output Frequency
(MHz)
156.250
Table 1
How to Order
VFJA923 -- Suffix
See Table 1
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • Rev_1212
2
VFJA923
156.25 MHz Jitter Attenuator
13mm x13mm SMD, LVPECL
Environmental and Mechanical Conditions
Parameter
Condition
Mechanical Shock
Per MIL-STD-202, Method 213, Condition E
Thermal Shock
Per MIL-STD-883, Method 1011, Condition A
Vibration
Per MIL-STD-883, Method 2007, Condition A
Soldering Conditions
260C for 10s max
Leak rate less than 5x10-8 atm.cc/s of helium (crystal only)
Hermetic Seal
Marking
Epoxy ink or laser engraved
Connection Diagram
VCC = 3.3V
127 
5
Fin
1
8
Enable/Disable
Mechanical Outline
127 
6
Output
7
Output
2, 4
GND
82 
82 
Pin Assignments
Pin #
1
2
3
4
5
Connection
Fin
Gnd
N/C
Gnd
Vcc
6
Fout
7
NFout
8
Output Disable
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • Rev_1212
3
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