CFPS-34 Oscillator
ISSUE 1; 19 OCTOBER 2004
Delivery Options
■
Please contact our sales office for current leadtimes
Description
■
The CFPS-34 is a high frequency, surface mount
oscillator with complementary LVPECL outputs
Output Compatibility
■
LVPECL
■
Output Load 50Ω terminated to +1.3V
SURFACE MOUNT
SPXOs
SURFACE MOUNT
SPXOs
Outline in mm
7.5 max
1.4±0.1 5.0 max
Pad Connections
1. Enable/Disable
2. N/C
3. GND
4. Output 1
5. Output 2
6. +Vs
Solder pad layout
2.54
1.4
2.0
1
6
2
5
5.08
3
4
2.6
4.2
5.08
t
f
80%Vs
t
r
VoH
VoL
t
T
Duty cycle = t x 100(%)
T
50R
50R
0.01µF
Power
Supply
V
TT
= 1.3V
Probe
Probe
6 5 4
0.01µF
Enable/
Disable
1 2 3
N/C
Frequency
Counter
Oscilloscope
1.8
Output Voltage
“0” Level VoL +1.7V max
■
“1” Level VoH +2.2V min
■
Package Outline
■
7.5 x 5.0mm SMD
Frequency Range
■
75.0 to 170.0MHz
Frequency Stabilities
■
±25ppm, ±50ppm, ±100ppm (inclusive of supply
voltage & output load variations over the operating
temperature range)
Operating Temperature Ranges
■
-10 to 70°C (CFPS-34)
■
-40 to 85°C (CFPS-34I)
Storage Temperature Range
■
-55 to 125°C
Tri-state Operation
■
Logic ‘1’ to pad 1 enables oscillator output (>70% Vs)
■
Logic ‘0’ to pad 1 disables oscillator output; when the
oscillator output goes to the high impedance state
(<30% Vs)
■
No connection to pad 1 enables oscillator output
Solder Conditions
■
For typical soldering conditions, please see the relevant
pages in Applications Notes
Marking
■
Model Number
■
Frequency
Minimum Order Information Required
■
Frequency + Model Number + Operating Temperature
Code (if applicable) + Frequency Stability
Power
Supply
Output Waveform
50%Vs
20%Vs
Test Circuit - LVPECL
A
Vs = 3.3Vdc
V
Europe Tel: +44 (0)1460 270200
Americas Tel: +1 919 941 9333
Asia
Tel: +86 755 8826 5991
Fax: +44 (0)1460 72578
Fax: +1 919 941 9371
Fax: +86 755 8826 5990
Website: www.cmac.com
Electrical Specification - maximum limiting values when measured in LVPECL test circuit
Frequency
Stability
Rise Time (tr)
(20% to 80%)
Fall Time (tf)
(80% to 20%)
Frequency Range
Supply Voltage Supply Current
Duty Cycle
Model Number
75.0 to 170.0MHz
±25ppm*,
±50ppm, ±100ppm
3.3V±5%
60mA
1.0ns
1.0ns
40/60%
CFPS-34
CFPS-34I
Ordering Example
Frequency
Model No
100.0MHz CFPS-34 I C
SURFACE MOUNT
SPXOs
Operating Temperature Code: I = -40 to 85°C: Not applicable for -10 to 70°C
Frequency Stability: A = ±25ppm, B = ±50ppm, C = ±100ppm
*Note - Code IA, ±25ppm over -40 to 85°C is not available
Europe Tel: +44 (0)1460 270200
Americas Tel: +1 919 941 9333
Asia
Tel: +86 755 8826 5991
Fax: +44 (0)1460 72578
Fax: +1 919 941 9371
Fax: +86 755 8826 5990
Website: www.cmac.com
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