Vendor: Dolphin Semiconductor Category: Oscillator

Low-power 32 kHz RC low-drift oscillator in TSMC 22ULL

OSC-RC-32k-LD-A01-T22ULL.01_TSMC_22_ULL is a 32 kHz RC oscillator in TSMC 22ULL specifically designed for the implemenation of ac…

TSMC 22nm ULL View all specifications

Overview

OSC-RC-32k-LD-A01-T22ULL.01_TSMC_22_ULL is a 32 kHz RC oscillator in TSMC 22ULL specifically designed for the implemenation of accurate time-based features in always-on domains. With an overall precision better than 500 ppm on its full voltage and temperature operating ranges, Dolphin's IP meets the sleep clock accuracy requirements of the BLE standard, removing the need for an external crystal.

Depending on applicative use cases, the operating mode can be either programmed for high accuracy or low-power. A frequency monitoring is implemented: the digital output signal FOK informs the application when the frequency has reached the correct frequency value after leaving shutdown or standby modes. The IP also embeds configurable debugging features.

PARAMETERS CONDITION

Minimum value

Typical value

Maximum value

Input Voltage

 - 0.72 V   0.99 V

Key features

  • Nominal frequency: 32.768 kHz
  • Single digital power supply: 0.72 V to 0.88 V
  • Junction temperature range: -40°C to 125°C
  • Timing precision < +/- 500 ppm @ 3Sigma
  • over [1
  • 10] sec
  • Typical Current Consumptions @ 0.8 V:
    • 430 nA in HA mode
    • 420 nA in OL mode
    • 25 nA in Shutdown mode
  • 32.768 kHz +/- 0.5% frequency accuracy after trimming
  • 50% +/- 10% Duty Cycle

Block Diagram

OSC-RC-32k-LD-A01-T22ULL.01_TSMC_22_ULL block diagram

Benefits

  • 2 active modes: High Accuracy (HA) / Open-Loop (OL)
  • 2 inactive modes: Shutdown / Standby with quick wake-up time
  • Frequency trimming
  • 4-bit coarse tuning
  • 6-bit fine tuning
  • FOK signal

Applications

  • Bluetooth
  • Cellular IoT
  • GNSS
  • Hearing aids
  • NB-IoT
  • Smart Headset
  • Smart Speaker
  • TWS Earpods
  • ULP MCU

Silicon Options

Foundry Node Process Maturity
TSMC 22nm ULL —

Specifications

Identity

Part Number
OSC-RC-32k-LD-A01-T22ULL.01_TSMC_22_ULL
Vendor
Dolphin Semiconductor
Type
Silicon IP

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Provider

Learn more about Oscillator IP core

Dolphin Semiconductor and INTERA Group Announce Reference Platform Combining Analog Voice Sensing and Neuromorphic AI for Ultra-Low-Power Edge Intelligence

Dolphin Semiconductor, a leading provider of semiconductor IP solutions, and INTERA Group, a semiconductor innovation company specializing in neuromorphic ASIC architectures, today announced a strategic collaboration to deliver a joint reference platform combining Dolphin’s WhisperExtractor (aMFCC) analog feature-extraction IP with INTERA’s Spiking Neural Network (SNN) processing architecture.

Vertex Growth commits €10M in Dolphin Semiconductor

Vertex Growth is a growth-stage venture capital fund anchored by Vertex Holdings, a subsidiary of global investment firm Temasek. The fund is dedicated to investing in high potential companies on the cusp of scaling-up.

Frequently asked questions about Oscillator IP cores

What is Low-power 32 kHz RC low-drift oscillator in TSMC 22ULL?

Low-power 32 kHz RC low-drift oscillator in TSMC 22ULL is a Oscillator IP core from Dolphin Semiconductor listed on Semi IP Hub. It is listed with support for tsmc.

How should engineers evaluate this Oscillator?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this Oscillator IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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