Loop Filter
Disable
Lock Detect
CS-300
Phase Freq
Detector
PECL
VCSO
VCXO Monitor
Frequency
Divider
Microprocessor
Frequency
Divider
Input
Frequency
Frequency
Select
Q
Q
Product Data Sheet
CS-300
Clock Smoother
Output frequencies up to 800 MHz
Ultra Low Jitter PECL Output
Locks to Input Frequency (i.e. 622.08 MHz)
3.3 Vdc or 5.0 Vdc supply
Lock / Loss of Signal Alarm
1" x 0.8" x 0.25", Surface Mount (FR4 base)
Clock Smoothing
SONET / SDH / ATM / DWDM / SFI-5
FEC (Forward Error Correction)
622.08 MHz to 622.08 MHz
Q
Q
4.75
3.135
Operating Temperature
Temp Range C = 0C to +70C
Temp Range F = -40C to +85C
Supply Voltage, C = 5 Vdc
D = 3.3 Vdc
Supply Current
5 Vdc
3.3 Vdc
Input Signal, F = Comp PECL
Output F = Comp PECL
Output Symmetry
Rise / Fall Time
(20% to 80% @ 622.08 MHz)
Jitter Generation, rms
(cycle to cycle method)
Input Frequency Tracking Capability
(Can translate a Stratum 1,2,3,3E,4
or SONET Min source)
See page 3 for outline Drawings and Dimensions
5.00
3.30
Vcc
Vcc
5.25
3.465
Vdc
Vdc
Icc
Icc
135
115
200
200
mA
mA
CLKIN
PECL
---
---
155.52 MHz
800 MHz
---
t
R
/t
F
400
ps
45
Sym
55
%
3
ps
APR
+/-40
ppm
Size
Vectron's CS-300 is a SAW based Clock Smoother and Frequency Translator which is used to
clean up noisy input frequencies. This series can accept any input frequency from 10 MHz to
700 MHz and then cleans up up the signal to provide an ultra low jitter output signal. The output
jitter of this unit is well below the requirements of OC-192.
The CS-300 also has the ability to translate either one or two different input frequencies between
10 MHz and 700 MHz to one common output frequency, such as input frequencies of 622.08 MHz
and 666.5143 MHz translated to an output frequency of 622.08 MHz. This unit is of particular
interest to those working with FEC applications or needing to switch between 10G and OC-192.
The "Input Frequency Tracking Capability" is the total amount of frequency deviation on the input
signal that the CS-300 is guaranteed to track. As an example, a typical input clock would be
622.08 MHz 20 ppm. The CS-300 is guaranteed to track at least 40 ppm of error over
temperature/ aging/ power supply and is more than twice what most applications require.
250
V
OH
@ +25C
V
OL
@ +25C
V
OL
V
cc
-1.95
V
cc
-1.63
V
V
OH
V
cc
-0.98
V
cc
-0.75
V
Jitter Generation, rms
(12kHz to 20MHz)
0.23
ps
49/51
PECL
1.0
Jitter Transfer,
GR-253-CORE section 5.6.2.1.2
0.1
dB
10 MHz
700 MHz
CLKIN Q
Input Frequency (Q)
1
CLKIN Q
Complementary Input Frequency (Q)
2
LD
(Output)
Lock Detect
Logic "1" indicates a locked condition.
Logic "0" indicates an out of lock condition.
3
Monitor
(Output)
PLL/ VCXO control voltage
Under locked conditions, should be >0.3V and <3.0V for the 3.3 volt option or >0.5V and <4.5V for
the 5 volt option. Input frequency may be out of range if voltage exceeds these limits.
4
----
Missing
5
NC
No Connection
6
GND
Ground
7
Disable
(Input)
Floating = Output enabled
Logic "0" = Output disabled
8
OUT
Output (Q)
9
COUT
Complementary Output (Q)
10
NC
No Connection
11
Freq. Select
0 = Primiary Frequncey
1 = Secondary Frequency (Do not Exceed Vdd)
12
NC
No Connection
13
NC
No Connection
14
GND
Ground
15
V
cc
5 Vdc or 3.3 Vdc
16
6.35
(0.25)
3.81
(0.15)
17.78
(0.70)
20.32
(0.80)
2.54
(0.10)
25.4
(1.00)
1.73
(0.068)
1.73
(0.068)
1.01
(0.040)
mm
(in)
pre-heating
60 to 90 sec.
@ 140C to 160C
reflow
40 to 60 sec.
@ >183C
NOTE: The CS-300 should not be subjected to a wash process that will immerse it in solvents. NO CLEAN is the recommended
procedure.
The CS-300 has been designed for pick and place reflow soldering. The suggested reflow profile is shown above.
The CS-300 may be reflowed once, and should not be reflowed in the inverted position.
8.89
(0.35)
17.78
(0.70)
19.05
(0.75)
2.54
(0.10)
1.91
(0.075)
3.04
(0.12)
9.53
(0.375)
mm
(in)
Temperature ( C)
The Standard ship method for volume production of the CS-300 series is in a matrix tray. These
trays are 100% recyclable. The trays also offer the added feature that they can be continuously
feed into a pick-n-place machine eliminating the down time required with tape-n-reel.
Although protection circuitry has been
designed into this device, proper precautions
should be taken to avoid exposure to
electrostatic discharge (ESD) during handling
and mounting. VI employs a human-body
model (HBM) and a charged-device model
(CDM) for ESD-susceptibility testing and
protection design evaluation. ESD voltage
thresholds are dependent on the circuit
parameters used to define the mode.
Although no industry-wide standard has been
adopted for the CDM, a standard HBM
(resistance = 1500 ohms, capacitance =
100pf) is widely used and therefore can be
used for comparison purposes. The HBM
ESD threshold presented here was obtained
by using these circuit parameters.
ESD Threshold Voltage
Model
Threshold
Unit
Human-Body (HBM)
Charged-Device
500
500
V min
V min
0.85
0.125
0.16
0.125
VI - Logo
This Cell only
4.00
0.125
12 15/16
0.235
0.235
3 x 12 Array / 36 units per tray
1.05
0.255 deep
Pin 1
This Corner
CS-300-DFC-P2XXP2
622.08 MHz in
622.08 MHz out
CS-300-DFC-P2XXP2
622.08 MHz in
622.08 MHz out
CS-300-DFC-P2XXP2
622.08 MHz in
622.08 MHz out
CS-300-DFC-P2XXP2
622.08 MHz in
622.08 MHz out
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