MAS9279A4HH06 データシートの表示（PDF） - Micro Analog systems

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MAS9279A4HH06

IC FOR 10.00 – 52.00 MHz VCTCXO

Micro Analog systems 

DA9279.003

13 July 2006

MAS9279

IC FOR 10.00 – 52.00 MHz VCTCXO

DESCRIPTION

The MAS9279 is an integrated circuit well suited to

build high end VCTCXO for telecommunication.

The trimming is done through a serial bus and the

calibration information is stored in an internal

PROM. This means no rework for trimming is

needed.

FEATURES

• Very small size

• Minimal current consumption

• Wide operating temperature range

• Very low phase noise

• Programmable VC-sensitivity

• Minimum operating temperature –40 °C

•

Oscillator frequency output f0/2 version

available

BLOCK DIAGRAM

• Fourth Order Compensation

• Frequency Stability +/- 0.3

ppm

• Wide Frequency Range

• Very Low Phase Noise

• Low Voltage

• Minimum Operating

Temperature –40 °C

• Tri State CMOS Output

To build a VCTCXO only crystal is required in

addition to MAS9279. The compensation method is

fully analog, working continuously without

generating any steps or other interference.

APPLICATIONS

• VCTCXO for high end telecommunications

systems

• TCXO for high end telecommunication

systems

DA

CLK

PV

Fourth

Term

CUB 4

f(T)

INF 5

Σ

3

SENS

8

f(T)

LIN

VC

VDD

CDAC1 6

4

CDAC2

VSS

X2

TE1

T

Vref TMux TE2

OUT

X1

1 (10)

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