MAS1175 Ver la hoja de datos (PDF) - Micro Analog systems

Número de pieza

componentes Descripción

Fabricante

MAS1175

IC FOR 10.00 – 20.00 MHz VCTCXO

Micro Analog systems 

DA1175.008

13 July, 2006

MAS1175

IC FOR 10.00 – 20.00 MHz VCTCXO

• Low Power

• Wide Supply Voltage Range

• True Sine Wave Output

• Very High Level of Integration

• Electrically Trimmable

• Very Low Phase Noise

• Low Cost

DESCRIPTION

The MAS1175 is an integrated circuit well suited to

build VCTCXO for mobile communication. Only two

external components are needed. Temperature

calibration is achieved with three calibration points

only. The trimming is done through a serial bus and

the calibration information is stored in an internal

PROM.

To build a VCTCXO only two additional

components, a varactor and a crystal are needed.

The compensation method is fully analog. IC

compensation work is continuous without

generating any steps or other interferences.

FEATURES

• Very small size

• Minimum current draw

• Wide operating temperature range

• Phase noise <-130 dBc/Hz at 1 kHz offset

• VCTCXO for mobile phones

APPLICATIONS

• VCTCXO for other telecommunications

systems

BLOCK DIAGRAM

DA

CLK

PV

CUB 4

INF 4

SENS 4

f(T)

Σ

f(T)

LIN 8

VC

CDAC1 8

VDD

2

CDAC2

VSS

X2

MAS1175

TE1

T

Vref TMux TE2

OUT

X1

1 (9)

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