Mfr Part #:

CX22721-11Z

The Conexant Systems CX22721-11Z is a high-performance stereo Class-D amplifier. It features I2S audio input and output, supporting sample rates up to 192kHz.

✓ Total Stock: 1,849 pcs

$ Price Range: $2.22

CX22721-11Z Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Rayichip ✓ Non-Authorised Inventory information	1,849 pcs On Request	1849 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

CX22721-11Z Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Conexant Systems

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CX22721-11Z Description

Short technical summary and product information.

The Synaptics CX22721 (also referred to as Conexant CX22721-11Z) is a high-performance stereo Class-D amplifier designed for advanced in-air playback. It integrates I2S audio input/output with I2C control, enabling seamless integration into systems utilizing Synaptics Voice Processors.

This amplifier delivers 2W per channel into a 4Ω speaker at 1% THD when powered by 5V PVDD, and 1.3W per channel into an 8Ω speaker. It incorporates dedicated hardware DSP effects for speaker tuning, including a 7-band per channel equalizer and a single-band dynamic range compression (DRC) for maximizing sound pressure level and protecting speakers. The device also features Synaptics SpeakerShield for real-time protection against DC detection, short-circuit, high temperature, and over-temperature conditions.

Key features include selectable host interface signaling levels of 1.8V and 3.3V, multiple GPIOs, and an EAPD function for power management. The CX22721 supports high-quality Line Out with headphone drive capability and DACs with sampling frequencies up to 192kHz. It is supplied in a 42-pin QFN package, suitable for applications such as voice-controlled STBs, smart Bluetooth/WiFi speakers, and voice-interactive smart appliances.

CX22721-11Z Quick Information

Product Type: Audio Amplifier IC

Canonical Name: CX22721-11Z Stereo Class-D Amplifier with I2S Audio I/O

Subcategory: Class-D Amplifier

CX22721-11Z Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

CX22721-11Z Estimated Pricing

Qty	Low	High
1+	$2.22	$2.22

Estimated market price range - modelled values for guidance only, not live distributor offers.

CX22721-11Z Features

Stereo Class-D amplifier with I2S audio interface.
2W output power per channel into 4Ω load.
Integrated hardware DSP for EQ and DRC.
Speaker protection features including thermal shutdown.
Supports sample rates up to 192kHz.

CX22721-11Z Applications

Ideal for smart speaker applications.
Suitable for voice-controlled devices.
Used in smart appliances.
Enables advanced in-air playback.
Designed for Synaptics Voice Processor systems.

CX22721-11Z FAQs

5 frequently asked questions generated from this part’s specifications.

What is the output power of the CX22721-11Z?

The CX22721-11Z provides 2W per channel into a 4Ω speaker at 1% THD with 5V PVDD, and 1.3W per channel into an 8Ω speaker.

What sample rates does the CX22721-11Z support?

The CX22721-11Z supports digital-to-analog converter (DAC) sampling frequencies of 44.1kHz, 48kHz, 96kHz, and 192kHz.

What is the package type for the CX22721-11Z?

The CX22721-11Z is supplied in a 42-pin QFN package.

What are the host interface signaling levels for the CX22721-11Z?

The host interface provides selectable signaling levels of 1.8V and 3.3V.

Does the CX22721-11Z have built-in DSP capabilities?

Yes, the CX22721-11Z features dedicated hardware DSP capabilities, including a 7-band per channel equalizer and a single-band dynamic range compression (DRC).