Data Sheet

VFJA432
Quad Input to 200MHz
Jitter Attenuator w/ FOUT to 200MHz
RoHS Status
Features





10MHz to 200MHz Output Frequency Range
8KHz to 200MHz Input Frequency Range
Ultra Low Jitter and Phase Noise: -143 dBc/Hz @ 1KHz
Low Power: < 150mW typical
Compliant with Telcordia GR-253-CORE, GR-1244-CORE,
ITU-T G.813, and ITU-T G.8261
Applications



SONET / SDH / ATM
Carrier Ethernet Synchronizers
Wireless Infrastructure
Description
The VFJA432 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
less than 150mW. The VFJA432 is configured with two LVCMOS output ports. The device is available in a
19.5mm x 15.5mm surface mount package.
LD
Filter
Fout 1
F in
R-Divider
VCXO
PFD
Fout 2
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 • RevF1010
1
VFJA432
Quad Input to 200MHz
Jitter Attenuator w/ FOUT to 200MHz
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
Ta
dBc/Hz
-40
55
%
4.0
ns
10
ms
3.45
V
55
mA
+85
C
Output HIGH (> 2.5 V) : In Lock; Output LOW (< .5V): Out of Lock
@ 25 MHz
Note 1
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 • RevF1010
2
VFJA432
Quad Input to 200MHz
Jitter Attenuator w/ FOUT to 200MHz
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)
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
n/c
Fout 1
Fout 2
n/c
Gnd
Description
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
No connection
Output Frequency
Output Frequency
No connection
Ground
Notes
Add .1 uF Capacitor
How to Order
VFJA432
Suffix
Once Input and Output frequencies have been submitted and approved, the Factory will assign a part number.
Table 2
P/N
suffix
-001
-003
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)
25.00
25.00
25.00
25.00
16
16
16
16
P/N
suffix
-002
-004
S1:S0
00
01
10
11
00
01
10
11
Input Frequency
(MHz)
.008
19.44
25
125
1
2
5
10
Output Frequency
(MHz)
125.00
125.00
125.00
125.00
10.00
10.00
10.00
10.00
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevF1010
3
VFJA432
Quad Input to 200MHz
Jitter Attenuator w/ FOUT to 200MHz
Mechanical Outline
Connection Diagram
LD
Vcc = 3.3V
C1
.01 uF
3 4 2 10
Fin
1
12
S1
S0
5
7
11
Fout 1
Fout 2
8 14
Gnd
Recommended Pad Layout
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevF1010
4
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