CFPT-123
ISSUE 4 ; 8 JUNE 2005
Delivery Options
■
Outline in mm
7.0±0.2
5.0±0.2
2.7±0.1
1.9±0.1
Please contact our sales office for current leadtimes
Description
■
3
4
CFPT-123 is a surface mount temperature compensated
voltage controlled crystal oscillator (TCVCXO) providing
a high degree of frequency stability over a wide
temperature range
2.0max
2
1.4±0.1
1
Package Outline
■
7.0
×
5.0
×
2.0mm SMD
0.3±0.1
Pad Connections
1. Voltage Control
2. GND
3. Output
4. +Vs
Solder pad layout
5.7
4.2
1.2
1.8
+Vs
Oscillator
4
1
V
3
2
10k
Probe
To Counter
10pF* or Scope
Stock Frequencies
■
10.0, 12.80, 13.0, 14.40, 15.360, 19.20, 19.44, 19.68, 20.0,
26.0MHz
Output Waveform
■
Clipped Sine 0.8V pk-pk minimum
Output load: 10kΩ // 10pF ±10%
Test Circuit
■
Frequency Adjustment
■
mA
+Vs
Power
Supply
V
±5ppm min, V control 1.5V±1.0V applied to pad 1
VC Input Impedance >1.0MΩ
SURFACE MOUNT
TCXOs
■
0.1µF
Frequency Stability
■
Temperature (see table)
* Inclusive of jigging and equipment
■
Supply Voltage Variation: ±0.2ppm (5% change)
Load Variation: ±0.2ppm (10% change)
Ageing ±1ppm typical first year @ 25°C
■
■
Storage Temperature Range
■
–55 to 125°
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 + Frequency Stability +
Operating Temperature Range
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
0.8±0.1
Electrical Specifications - maximum limiting values when measured in test circuit
Frequency Range
10.0 to 26.0MHz
Supply Voltage
3.0V±0.15V
Supply Current
2.5mA
Voltage Control
Change
±5.0ppm min. /1.5V±1.0V
Output Waveform
Clipped Sine
Output
0.8V pk-pk min
Model
Number
CFPT-123
Frequency Stabilities Available Over Operating Temperature Ranges
Operating
Temperature
Ranges
0 to 50°C
–10 to 60°C
–20 to 70°C
–30 to 80°C
–30 to 85°C
–40 to 85°C
Frequency Stabilities Vs Operating Temperature Range
±1.5ppm
CP
CR
—
—
—
—
±2.0ppm
GP
GR
GS
GV
—
—
±2.5ppm
HP
HR
HS
HV*
HW
HX
±5.0ppm
KP
KR
KS
KV
KW
KX
*Please note Code HV is the standard frequency stability vs operating temperature range
Ordering Example
Frequency
Model number
Frequency Stability Vs Operating Temperature Code
Note. Other frequencies may be available, please contact our sales office.
SURFACE MOUNT
TCXOs
12.8MHz
CFPT-123 HV
Outline in mm - Tape
4.0
2.0
16.0
+0.3
-0.1
Outline in mm - Reel
∅1.5
20.20
16.40
7.5
13.0±0.2
8.18
5.56
8.0
2.16
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
∅
60.0
∅
180
单片机
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