DA9285.004
13 July 2006
IC FOR XO TRIMMING
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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.
MAS9285
Very Low Power
Wide Trimming Range
Wide Supply Voltage Range
Very High Level of Integration
Electrically Trimmable
Low Cost
FEATURES
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Very small size
Minimum current draw
Wide operating temperature range
APPLICATIONS
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OCXO
All Crystal Oscillators
BLOCK DIAGRAM
MAS9285
DA
CLK
PV
VDD
Digital
2
3
5
VSS
X1
Figure 1. Block diagram of MAS9285.
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MAS [ MICRO ANALOG SYSTEMS ]
