Data Sheet

VFJA434
Quad Input to 200 MHz
Jitter Attenuator w/ FOUT to 200 MHz
RoHS Status
Features




10 MHz to 200MHz Output Frequency Range
8 KHz to 200 MHz Input Frequency Range
Ultra Low Jitter and Phase Noise: -143 dBc/Hz @ 1KHz
Low Power: < 150mW typical
Applications



Sonet / SDH / ATM
Carrier Ethernet Synchronizers
Wireless Infrastructure
Description
The VFJA434 is a Jitter Attenuator capable of providing an output frequency up to 200 MHz. 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
less than 150 mW. The VFJA434 is configured with four LVCMOS output ports. The device is available in a
19.5mm x 15.5 mm surface mount package.
Fout 1
LD
Filter
Fout 2
F in
R-Divider
VCXO
PFD
Fout 3
S0
S1
uController
N- Divider
Fout 4
Block Diagram
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0810
1
VFJA434
Quad Input to 200 MHz
Jitter Attenuator w/ FOUT to 200 MHz
Absolute Maximum Ratings
Parameter
Supply Break
Down Voltage
Storage
Temperature
Symbol
Condition
Min
Typ
Max
Unit
Vcc
-0.5
5.5
V
Ts
-55
+105
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
Symbol
Condition
Min
Typ
Max
Unit
Fout
10
200
MHz
Fin
0.008
200
MHz
0.4
3.3
V p-p
Vcc-0.1
Vcc
V
0.0
.1
V
0.35
ps(rms)
Vin
AC coupled internally
Voh
Note
10K Ω // 10 pF
Vol
12KHz to 20MHz
0.18
100Hz
1KHz
10KHz
100KHz
-120
-143
-153
-163
Фn
Tr/Tf
 32
ppm
10
Hz
@ 50%
45
20% to 80%
.8
50
2
Vcc
3.15
Icc
LD
3.30
45
0
-40
Ta
dBc/Hz
55
%
4.0
ns
10
ms
3.45
V
55
mA
+70
+85
C
Output HIGH (> 2.5 V) : In Lock; Output LOW (< .5V): Out of Lock
@ 25 MHz
Note 1
Order code B
Order code G
LVCMOS
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 • RevA0810
2
VFJA434
Quad Input to 200 MHz
Jitter Attenuator w/ FOUT to 200 MHz
Environmental and Mechanical
Parameter
Mechanical Shock
Thermal Shock
Specification
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-883, Method 1011, Condition A
Vibration
Per MIL-STD-883, Method 2007, Condition A
Soldering Conditions
260C for 10s max
Hermetic Seal
-8
Leak rate less than 5x10 atm.cc/s of helium (crystal only)
How to Order
VFJA434
Suffix
Temperature Range
Code
B
G
Specification
0°C to 70°C
-40°C to 85°C
Once Input and Output frequencies have been submitted and approved, the Factory will assign a part number.
Table 2
P/N
suffix
-001
-003
-005
S1:S0
00
01
10
11
Input Frequency
(MHz)
.008
19.44
25
125
Output Frequency
(MHz)
25.00
25.00
25.00
25.00
00
01
10
11
24
24
24
24
80.0
80.0
80.0
80.0
00
01
10
11
10
10
10
10
100.00
100.00
100.00
100.00
P/N
suffix
-002
-004
-006
S1:S0
00
01
10
11
00
01
10
11
Input Frequency
(MHz)
.008
19.44
25
125
10
10
10
10
Output Frequency
(MHz)
125.00
125.00
125.00
125.00
120
120
120
120
00
01
10
11
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0810
3
VFJA434
Quad Input to 200 MHz
Jitter Attenuator w/ FOUT to 200 MHz
Pin Assignments
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Symbol
Fin
LD
Vccp
Vcc
S1
DNC
S0
Gnd
n/c
Description
Notes
Input Frequency
Lock Detect
Connect to Vcc pin #4
3.3 Volt Power Supply
Input Select (msb)
Do not connect
Input Select (lsb)
Ground
No connection
Output Frequency
Output Frequency
Output Frequency
Output Frequency
Ground
Fout 1
Fout 2
Fout 3
Fout 4
Gnd
Add .1 uF Capacitor
Connection Diagram
Mechanical Outline
LD
Vcc = 3.3V
C1
.01 uF
3 4 2
Fin
1
S1
S0
5
7
10
11
12
13
Fout 1
Fout 2
Fout 3
Fout 4
8 14
Gnd
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0810
4
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