DA9285.004

13 July 2006

1 (11)

MAS9285

IC FOR XO TRIMMING

•

Very Low Power

•

Wide Trimming Range

•

Wide Supply Voltage Range

•

Very High Level of Integration

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Electrically Trimmable

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Low Cost

DESCRIPTION

MAS9285 is capacitive digital to analog converter

integrated circuit well suited to make initial offset

trimming of the crystal oscillator. The trimming is

done by a serial bus and the calibration information

is stored in an internal PROM.

FEATURES

APPLICATIONS

•

Very small size

•

Minimum current draw

•

Wide operating temperature range

•

OCXO

•

All Crystal Oscillators

BLOCK DIAGRAM

Figure 1. Block diagram of MAS9285.

DA

CLK

PV

VSS

VDD

X1

Digital

5

3

2

MAS9285