546SB-38.880 [CTS]

Oscillator;


型号：	546SB-38.880
厂家：	CTS
描述：	Oscillator
文件：	总2页 (文件大小：31K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Preliminary Specification

Rev. X01

CTS

¨ Frequency Stability to Stratum 3 of GR-1244

¨ Patented Voltage Tuned Thermistor Network

¨ Very Low Phase Jitter: < 1 pSec

¨ +3.3Vdc or +5.0Vdc Operation

Model 546

“VTTN ” Series

Stratum 3 TCXO

¨ Precision Low Aging “AT” Cut Crystal

¨ Compatible with Semtech SETS Chipsets

¨ Surface Mount Pkg. – Matches Vectron Z5

Electrical Characteristics

Parameter

Sym

Conditions

Min

Typical

Max

Unit

Power

Requirements

Power Supply

Vcc

3.135

4.75

3.30

5.0

3.465

5.25

Note 1

Vdc

± 5%

±5%

Vcc=Max. (3.3Vdc)

Std. Load (5.0Vdc)

546L

546S

Supply Current

Icc

Frequency

Stabilities

Center Frequency

f_nom

1.25

38.88

MHz

19.44

12.8

Initial Tolerance

Freq. vs. Temp.

Freq. vs. Voltage

f_cal

Ta=+25°C

±0.75

ppm

Df/DTemp

±0.25

± 0.1

±2.5

Vcc ±5%

Df/DVcc

Df/DTime

Df/24Hr

Freq. vs Time

(Aging)

24 Hour Holdover

Stability

20 years

Inclusive of Temp.,

Supply Variation

and 24Hrs. Aging

All Cond. for 20

±0.30

±0.37

±4.6

Total Free-

ppm

Df/Life

Running Accuracy

Yrs. (Ref. to f_nom

)

Waveform:

CMOS Output

Symmetry

Amplitude

Sym

@ 50% Level

0.8Vcc

Logic “1”

Logic “0”

20% to 80%

Output to Ground

Offset = 100HZ

1KHz

0.3

Rise/Fall Times

Load

Phase Noise

tr, tf

nSec

10KW ½½ 15pF

-115

dBc/Hz

-130

-140

-150

10KHz

100KHz

Phase Jitter

12KHz to 20MHz

Bandwidth

1.0

pSec RMS

Note 1: Maximum Current will vary with Frequency

Preliminary Specification

Rev. X01

Model 546

“VTTN ” Series

Stratum 3 TCXO

CTS

1.15

1.00

Pin #

Function

RF Output

Supply Voltage

Ground

No Connect

Ground

0.390 MAX

1.00

0.25

0.40

Environmental / Mechanical Specifications

Storage Temperature:

Reflow Soldering:

Shock:

-55° to +125°C

30 Sec. > 200°C, 240°C Peak Max.

50 G’s, 11 mSec. Pulse (3 Shocks/Axis)

10 G’s peak, 10 to 500 Hz

Vibration:

Case:

Seal:

High-Temp FR-4 Base, Nickel/Silver Cover

Non-Hermetic

Ordering Information

Model 546

___.________ Example: 546SA-19.440

Frequency in MHz

Supply Voltage

L = +3.3Vdc

S = +5.0Vdc

Oper. Temp. Range

A = -5° to +50°C

B = 0° to +70°C

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