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參數資料
| 型號： | 168.0MHZCFSS-3M+/-0.75%B |
| 廠商： | IQD FREQUENCY PRODUCTS LTD |
| 元件分類： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 168 MHz, CMOS OUTPUT |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, CERAMIC PACKAGE-4 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 510K |
CLOCK
OSCILLA
TORS
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
CFSS-3 SPREAD SPECTRUM CLOCK OSCILLATORS
ISSUE 3; 1 NOVEMBER 2008 - RoHS 2002/95/EC
Description
Spread spectrum surface mount oscillators in a ceramic
package with a hermetically sealed metal lid
Package Outline
5 x 3.2mm
Frequency Range
12 to 168MHz
Output Compatibility & Load
Tri-state CMOS
Drive Capability 15pF max
Frequency Stability (averaged frequency)
±50ppm (inclusive of tolerance, supply voltage a
nd output
load variations over the operating temperature range)
Operating Temperature Range
–10 to 70°C
Storage Temperature Range
–40 to 85°C
Tri-state Operation
Logic ‘1’ to pad 1 (>80% Vs) enables oscillator output
Logic ‘0’ to pad 1 (<20% Vs) disables oscillator output,
the
oscillator output goes to a high impedance state.
No connection to pad 1 enables oscillator outputs
Modulation Ratios
Centre Spread ±0.5%, ±1%, ±2%
Down Spread –1%, –2%, –4%,
Cycle to Cycle Jitter 1s
12MHz to <20MHz 200ps max
20MHz to 168MHz 100ps max
Ageing
±5ppm max / year
Environmental
Drop: natural drop, 3 times, from 100cm onto a hard
wooden plate (30mm thick)
Vibration: 10 to 55Hz, 1.5mm displacement (10Hz-36Hz),
4G (36Hz-55Hz) sweep time 1min/oct, duration 2hrs for
each X, Y & Z axes
Marking Includes
Model Number + Frequency
Packaging
Bulk or Tape and Reel
Minimum Order Information Required
Frequency + Model Number + Modulation Ratio +
Frequency Stability Code
Outline (mm)
5.0±0.2
3.
2±
0.
2
1.
05
±0
.1
2.6
1.1
1.6
0.
7
1
2
4
3
2.6
1.6
1.3
1.
0
Solder Pad Layout
Pad Connections
1.Enable/Disable
2.GND
3.Output
4.+Vs
Test Circuit
Oscilloscope
Oscillator
2
1
Frequency
Counter
A
Power
Supply
V
15pF *
* Inclusive of jigging and equipment capacitance
+Vs
3
4
0.1 F
Example Output Spectrum
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