Ultra low power 32.768 kHz crystal oscillator

Overview

055UMC_OSC_01 is a crystal oscillator with Pierce architecture. The block implementation is optimized for very low power consumption.

The block consists of a feedback amplifier and buffers for generating CMOS output signal.
Current consumption adjustment is implemented by changing the feedback amplifier current. Typical tuning range of total current consumption is from 0.25µA to 0.4 µA.

Key Features

UMC 55nm eFlash CMOS technology
Input Voltage 1.2V
Fixed 32.768kHz output frequency
Low frequency sensitivity
Current consumption regulation

Block Diagram

Applications

Frequency multiplier
Reference signal former
PLL frequency synthesizer

Deliverables

Schematic or NetList
Abstract model (.lef and .lib files)
Layout view (optional)
Behavioral model (Verilog)
Extracted view (optional)
GDSII
DRC, LVS, antenna report
Test bench with saved configurations (optional)
Documentation

Technical Specifications

Foundry, Node

UMC eFlash 55nm

Maturity

Pre-silicon verification

Availability

Now

UMC

Pre-Silicon: 55nm

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