CS48L10-CNZR

CS48L10-CNZR is Cirrus Logic’s CS48L10 audio-on-a-chip (SoC) designed for compact wearable devices and headsets. It integrates the analog front-end, stereo DACs/ADCs, a digital signal processor, and an audio power amplifier in one package, aimed at low-power, small-footprint applications.
Key points:
- Functions: audio processing (EQ, noise suppression, etc.), microphone interfaces, DAC/DAC, driver for speakers or earbuds.
- Interfaces: external MCU control via I2C/SPI; audio data via I2S/PCM; microphone inputs (PDM/PCM as supported).
- Power and packaging: optimized for battery-powered devices; CNZR is a packaging/lot/variant code—confirm exact pinout, voltages, and features from the datasheet.
- Typical applications: true wireless earbuds, compact headsets, portable speakers.
Design notes:
- Provide supply rails, decoupling, and MCU to configure DSP features.
- Connect microphone array and speaker outputs per reference designs.
- Refer to the official data sheet for precise electrical specs and recommended circuits.

Here are the typical features of the CS48L10-CNZR (Cirrus Logic audio SoC, NZR package). For exact specs, refer to the official datasheet.
- Integrated high-efficiency Class-D speaker amplifier (dual-channel)
- Stereo DAC and stereo ADC for mic input
- Embedded digital signal processor with EQ, filtering, dynamic range control, and voice modes
- Flexible digital audio interfaces: I2S/ PCM (and related formats), left-justified, TDM
- Serial control via I2C (and/or SPI where applicable)
- MEMS microphone biasing and mic input path
- Power-management: multi-supply regulators, bias generators, wake/shutdown control
- Pop/noise suppression during power-up/power-down
- Protection features: overcurrent/short-circuit, overtemperature, speaker protection
- Clocking options: external MCLK or internal PLL
- Small package (NZR variant) suitable for portable devices such as wearables or headphones
Note: exact I/O count, supported sample rates, and electrical specs vary by revision; confirm with the device datasheet for your specific part variant.

Package type: QFN (Quad Flat No-Lead) package. For exact pin count and dimensions, please refer to the CS48L10-CNZR datasheet or distributor page.

Pin count: 28 pins (QFN-28).
Function: Cirrus Logic CS48L10-CNZR is a stereo Class-D audio amplifier with integrated DSP/mic bias and front-end features (I2S/PCM digital audio input, analog/audio interfaces). It serves as the audio amplifier and DSP front-end for mobile/portable devices.

- Manufacturer: Cirrus Logic, Inc.
- Company type: A fabless semiconductor company that designs and markets audio and voice integrated circuits (e.g., headphone drivers, DACs/ADCs, audio codecs) for consumer electronics.

CS48L10-CNZR is used as a compact, integrated audio front-end in consumer electronics. Typical applications include:
- Wireless headphones/earbuds and headsets
- Bluetooth speakers and smart speakers
- Mobile devices (phones, tablets, laptops)
- Wearables and AR/VR devices
- Smart home/voice-assistant and conferencing equipment
- IoT devices requiring high-quality audio playback and capture