5MHz-35MHz Crystal Oscillator - Austriamicrosystems 0.18µ

Overview

The OT0210bj is a flexible crystal oscillator for the Austriamicrosystems 0.18µ CMOS processes. It is designed to operate with standard AT cut crystals. This cell does not include primary ESD protection and is designed to be used with standard ESD pads. Current adjustment is provided to optimize power and accommodate crystal characteristics over the frequency range.

Key Features

5MHz-35MHz Frequency range.
No external bias or limit resistors required.
Current optimization for best power at frequency.
Duty cycle control loop.
Amplitude control loop.
The OSCI pad input can be used as a CMOS input for test.
IO’s has diode based secondary ESD protection.
Uses single 1.8V supply.
Enable/power down provision.
Service includes simulation with vendors crystal or resonator models.

Benefits

Wide crystal range.
Controllable max crystal current.
Low power. Oscillator amplitude based current loop ensures minimum power.
Low cost. Silicon proven multi-use license available at $8K.

Block Diagram

Applications

Low power crystal clocked systems.

Deliverables

Flat GDS layout (for some IP this is delivered to the fab for integration).
Verilog model.
SPICE netlist.
Basic SPICE testbench. Allows for verification of basic function.
Integration notes, and integration consulting support.
Test implementation notes.

Technical Specifications

TSMC

In Production: 180nm
Silicon Proven: 180nm G

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