VFJA400
Quad Input to 200MHz
Jitter Attenuator w/ F
OUT
to 200MHz
Features
10MHz to 200MHz Output Frequency Range
8KHz to 200MHz Input Frequency Range
Ultra Low Jitter and Phase Noise: -130 dBc/Hz @ 1KHz
Low Power: < 150mW typical
RoHS Status
Applications
Sonet / SDH / ATM
10 Gigabit Ethernet
Wireless Infrastructure
Description
The VFJA400 is a Jitter Attenuator capable of providing an output frequency up to 200MHz. Two select inputs
[S1,S0] allow the user to select 1 of 4 preset input frequencies. A Lock Detect signal indicates when the output
signal is frequency locked to the input. Operating with a +3.3 volt power supply the device typically consumes
150mW. The output is configured as a differential LVPECL signal and requires external termination resistors.
The VFJA400 is available in a 19.5mm x 15.5mm surface mount package.
LD
Filter
F in
R-Divider
PFD
VCXO
Fout
Disable
S0
S1
uController
N- Divider
Block Diagram
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevH0609
1
VFJA400
Quad Input to 200MHz
Jitter Attenuator w/ F
OUT
to 200MHz
Absolute Maximum Ratings
Parameter
Supply Break
Down Voltage
Storage
Temperature
Symbol
Vcc
Ts
Condition
Min
-0.5
-55
Typ
Max
5.5
+105°
Unit
V
°C
Note
Electrical Specifications
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
Lock Detect
Enable /
Disable
Function
Enable /
Disable Time
Symbol
Fout
Fin
Vin
Voh
Vol
2.5 V / ns (min)
Rising edge triggered
Condition
Min
10
0.008
0.4
Vcc-0.96
Vcc-1.85
Typ
Max
200
200
3.3
Vcc-0.81
Vcc-1.65
Unit
MHz
MHz
V p-p
V
V
ps(rms)
dBc/Hz
ppm
Hz
Note
See Table 2
See Table 2
AC coupled internally
50 Ohm to Vcc-2V or
Thevenin Equivalent
12KHz to 20MHz
100Hz
1KHz
10KHz
100KHz
Фn
0.20
-100
-130
-145
-150
±
32
10
0.5
@
155.52MHz
Note 1
@ 50%
Tr/Tf
20% to 80%
45
50
55
0.6
%
ns
s
3
Vcc
Icc
Ta
LD
-40°
3.15
3.30
45
3.45
55
+85°
V
mA
°C
LVCMOS
Output HIGH (> 2.5 V) : In Lock; Output LOW (< .5V): Out of Lock
Input HIGH (>2.5V): Output Disabled
Input LOW (<0.5V) or floating: Output Enabled
LVCMOS
ns
Te/Td
100
Notes:
1. Consult factory for Bandwidth options
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevH0609
2
VFJA400
Quad Input to 200MHz
Jitter Attenuator w/ F
OUT
to 200MHz
How to Order
VFJA400
Suffix
Standard Frequencies
P/N
suffix
-001
S1:S0
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
Input Frequency
(MHz)
0.008
19.44
25
125
19.44
125.0
155.52
156.25
132.81
153.60
155.52
156.25
10
10
10
10
Table 2
Output Frequency
(MHz)
25.00
25.00
25.00
25.00
155.52
155.52
155.52
155.52
84.774
84.774
84.774
84.774
200
200
200
200
P/N
suffix
-002
S1:S0
00
01
10
11
00
01
10
11
00
01
10
11
Input Frequency
(MHz)
0.008
19.44
25
125
19.44
19.44
19.44
19.44
169.548
169.548
169.548
169.548
Output Frequency
(MHz)
125.00
125.00
125.00
125.00
161.1328125
161.1328125
161.1328125
161.1328125
156.25
156.25
156.25
156.25
-003
-004
-005
-006
-007
Once Input and Output frequencies have been submitted and approved, the Factory will assign a part number.
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevH0609
3
VFJA400
Quad Input to 200MHz
Jitter Attenuator w/ F
OUT
to 200MHz
Environmental and Mechanical
Parameter
Mechanical Shock
Thermal Shock
Vibration
Soldering Conditions
Hermetic Seal
Specification
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-883, Method 1011, Condition A
Per MIL-STD-883, Method 2007, Condition A
260°C for 10s max
Leak rate less than 5x10
-8
atm.cc/s of helium (crystal only)
Connection Diagram
LD
C1
.01 uF
Disable
R1
180
Ω
Fout
Mechanical Outline
Vcc = 3.3V
3 4 2 10
1
5
7
12
11
8 14
Fin
S1
S0
nFout
R2
180
Ω
Gnd
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
Fin
Lock Detect
Vcc
Vcc
S1
DNC
S0
Gnd
N/C
Disable
nFout
Fout
N/C
Gnd
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevH0609
4
嵌入式系统
