SURFACE MOUNT CLOCK OSCILLATOR
CSMF SERIES:
Multi-Frequency Oscillator with Low Jitter Output 10MHz – 1200MHz
PRODUCT DESCRIPTION
The CSMF clock series is a cutting edge family of High Frequency, Low Jitter Output, Multi-Frequency Clock
Oscillators based on an advanced digital PLL platform. The CSMF clocks are available in a 7x5mm ceramic
package with output frequency from 10MHz to 1.2 GHz. The CSMF units are pre-programmed with up to 2
different output frequencies, any of which are user selected. Such flexibility significantly reduces design cycle
time and overall cost. The CSMF clock design incorporates a low frequency crystal along with low Jitter
frequency synthesizer to provide a wide range of frequencies. The CSMF Clocks are available in LVCMOS,
LVPECL and LVDS outputs, making them suitable for a wide range of applications.
APPLICATION
SONET/SDH
FIBRE CHANNEL
10G,100G, GIGABIT ETHERNET
CLOCK / DATA RECOVERY
TEST AND MEASUREMENT
ELECTRICAL SPECIFICATION
PARAMETER
Frequency, nominal
Supply voltage, nom.
Supply current
LVPECL output levels
LVPECL output voltage swing
LVDS differential output voltage
LVDS offset voltage, typical
LVCMOS / LVTTL output levels
Duty cycle
Rise/ fall time, max.
RMS phase jitter
1
Overall freq. stability, max.
Enable / Disable
Operating temperature
Storage temperature
Absolute voltage range
Notes
1
See part numbering table
2
Contact factory
SYMBOL
f
O
V
CC
Is
VOH
VOL
Vp-p
∆V
OD
V
OS
VOH / VOL
DC
tr / tf
J
∆f/fc
En / Dis
Ta
T(stg)
Vcc(abs)
CONDITIONS
Up to 2 available output frequencies
Typical (depending on output)
Output termination 50Ω ~ Vcc - 2.0V
Output termination 50Ω ~ Vcc - 2.0V
100Ω termination between outputs
min/max
Load = 10kΩ // 20pF
20% - 80% (VOL, VOH)
Typical
Various available, specified when ordered
Min (logic 1) / Max (logic 0)
Absolute max
VALUE
10 -1200
2.5 or 3.3
35 ~ 45
Vcc -1.4 ~ Vcc - 0.9
Vcc - 2.0 ~ Vcc - 1.7
0.6 ~ 1.0
350
1.25
0.7Vcc / 0.3Vcc
40/60 or 45/55
0.6
0.8
±20 ~ ±100.
0.7 (Vcc) / 0.3 (Vcc)
-40 ~ +85
-45 ~ +100
Vcc ± 0.5
UNIT
MHz
V
mA
V
V
V
mV
V
V
%
ns
ps
ppm
V
°C
°C
V
RALTRON 10651 N.W. 19
th
St Miami, Florida 33172 U.S.A.
Phone: (305) 593-6033 Fax: (305) 594-3973 e-mail: sales@raltron.com web: http://www.raltron.com
SURFACE MOUNT CLOCK OSCILLATOR
MECHANICAL SPECIFICATION
INDICATES PIN 1.
.197 ±.008
5.0 ±0.2
OUTLINE TOLERANCE
IF NOT SPECIFIED:
±0.015” / 0.4mm
PIN FUNCTIONS:
3
[1] FREQ SELECT (SEL)
[2] ENABLE / DISABLE
[3] GROUND
[4] OUTPUT
[5] COMP. OUTPUT
[6] SUPPLY VOLTAGE
.129
3.28
4
.276 ±.008
7.0 ±0.2
.079 MAX.
2.00 MAX.
.200
5.08
.100
2.54
3
.079 TYP.
2.00 TYP.
.087
2.20
1
.050
1.27
2
MARKING:
CSMF293 – (family)
ASH X-Y– (frequency codes)
R D/C – (factory date code)
6
5
.055 TYP.
1.40
4
.071
1.80
.100
2.54
.150
3.81
*0.01uF external bypass capacitor is
recommended as seen in solder pattern
** RoHS compliant
SOLDER PATTERN
Notes
3
Frequency Select pin (SEL)
Logic 1 (NC) = Output Frequency 1 (First frequency listed in part # is automatically available. Customer specified at time of order)
Logic 0 = Output Frequency 2 (Second frequency listed in part # is available. Customer sets SEL pin to Low)
4
Enable / Disable feature is available on either pin 1 or pin 2. See options on part numbering table.
PART NUMBERING SYSTEM:
SERIES
Surface
mount
Multi-
frequency
Clock
Oscillator
NUMBER OF
OUTPUTS
OUTPUT
SUPPLY
VOLTAGE
(V)
1:
Vcc =2.5
3:
Vcc =3.3
SYMMETRY
(%)
TEMP
RANGE
(°C)
R:
0~50
S:
0~70
U:
-20~70
V:
-40~85
FREQUENCY
STABILITY
(ppm)
K:
±20
I:
±25
H:
±50
J:
±100
ENABLE /
DISABLE
PIN
1:
Pin 1
2:
Pin 2
OUTPUT FREQUENCY
(MHz)
1:
Single Output
2:
Dual Output
9:
LVPECL
8:
LVDS
4:
LVCMOS
A:
40/60
T:
45/55
XXX.XXX-YYY.YYY
Freq1- Freq 2
CSMF
2
9
3
A
S
H
2
-
XXX-YYY
EXAMPLE: CSMF293ASH2-622-311
Clock Oscillator, 7x5mm package, Dual output, LVPECL, +3.3V Supply, 40/60 Symmetry, 0~+70°C Operating
Temperature Range, ±50ppm overall Frequency Stability, Enable/Disable on pin 2, 622.080 MHz and
311.040MHz output frequency.
RALTRON 10651 N.W. 19
th
St Miami, Florida 33172 U.S.A.
Phone: (305) 593-6033 Fax: (305) 594-3973 e-mail: sales@raltron.com web: http://www.raltron.com
SURFACE MOUNT CLOCK OSCILLATOR
REFLOW PROFILE:
t
P
T
P
Ramp-up
Critical Zone
T
L
to T
P
T
L
T
SMAX
Temp.
[°C]
T
SMIN
t
S
Preheat
t
L
Ramp-down
t[25°C] to Peak
Time [sec]
Temperature Min Preheat
Temperature Max Preheat
Time (T
SMIN
to T
SMAX
)
Temperature
Peak Temperature
Ramp-up rate
Ramp-down rate
Time within 5°C of Peak Temperature
Time t[25°C] to Peak Temperature
Time
Reflow profile IPC/JEDEC J-STD-020 REV. C
T
SMIN
T
SMAX
t
S
T
L
T
P
R
UP
R
DOWN
t
P
t[25°C] to Peak
t
L
150°C
200°C
60-180 sec.
217°C
260°C
3°C/sec max.
6°C/sec max.
20-40 sec.
480 sec.
60-150 sec.
RALTRON 10651 N.W. 19
th
St Miami, Florida 33172 U.S.A.
Phone: (305) 593-6033 Fax: (305) 594-3973 e-mail: sales@raltron.com web: http://www.raltron.com
模拟电子
