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…
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
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
Files
Note: some files may require an NDA depending on provider policy.
Silicon Options
| Foundry | Node | Process | Maturity |
|---|---|---|---|
| TSMC | 22nm | ULL | — |
Specifications
Identity
Provider
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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.