Item specifics
Description
ALC269Q-VB6-CG Product Overview
The Realtek ALC269Q-VB6-CG is a highly integrated High Definition Audio Codec from Realtek Semiconductor, compliant with the Intel HD Audio 1.0 specification. Housed in a QFN-48 (6×6mm) compact package, the ALC269Q-VB6-CG integrates 2+2-channel DACs, a 4-channel ADC, and an embedded Class-D speaker amplifier. Utilizing Realtek's advanced converter technology, the ALC269Q-VB6-CG achieves a 98dB dynamic range for both playback and recording quality, with a measured headphone SNR of 101 dB(A). The chip integrates five hardware equalizer (EQ) bands — one low-pass filter, one high-pass filter, and three band-pass filters — programmable via BIOS to compensate for mini-speaker frequency response. The ALC269Q-VB6-CG features three integrated power amplifiers: two linear headphone amplifiers (Port A eliminates external DC-blocking capacitors to remove pop noise; Port C is a linear headphone amplifier) and a stereo Class-D amplifier that directly drives speakers as low as 4Ω impedance, delivering up to 2.3W per channel at 5V. The ALC269Q-VB6-CG is widely used in laptops, desktop motherboards, embedded systems, consumer electronics, and automotive infotainment systems.
ALC269Q-VB6-CG Key Features
The ALC269Q-VB6-CG embodies Realtek's deep expertise in high-performance audio codec design. It is compliant with the Intel HD Audio 1.0 specification and packaged in a QFN-48 (6×6mm) compact package. The ALC269Q-VB6-CG integrates 2+2-channel DACs supporting two independent stereo sound outputs simultaneously, and a 4-channel ADC integrating two stereo independent analog sound inputs for multiple streaming. The chip supports stereo digital microphone channels (microphone array) with simultaneous Acoustic Echo Cancellation (AEC), Beam Forming (BF), and Noise Suppression (NS) technology. The ALC269Q-VB6-CG features two independent S/PDIF outputs — one for connecting to high-quality consumer electronics (e.g., digital decoders and speakers), the other for dedicated digital output to an HDMI transmitter. The chip provides 5 hardware equalizer bands programmable via BIOS without custom driver modifications. The ALC269Q-VB6-CG supports 24-bit DAC/ADC resolution with sample rates up to 96kHz. Headphone SNR is measured at 101 dB(A) with THD+N as low as 0.002%. Idle power consumption is only 1.8 mW, with active playback consuming approximately 12-18 mW, compliant with Intel's Audio Codec low-power state requirements.
ALC269Q-VB6-CG Applications
With its highly integrated audio codec functionality, embedded Class-D amplifier, and compact QFN package, the ALC269Q-VB6-CG is widely deployed in various audio processing applications. The chip is a core solution for laptops, netbooks, and desktop motherboards. The ALC269Q-VB6-CG is also suitable for embedded industrial control equipment and multimedia playback devices. In the consumer electronics sector, the chip is used in gaming devices, tablets, and smartphones. Additionally, the ALC269Q-VB6-CG is widely used in automotive infotainment systems, external speakers, digital decoders, and HDMI audio transmitters.
ALC269Q-VB6-CG Key Advantages
The ALC269Q-VB6-CG stands out as a mature, commercially available High Definition Audio Codec that strikes an excellent balance between high-fidelity audio, high integration, and low power consumption. Housed in a QFN-48 (6×6mm) compact package, the chip integrates 2+2-channel DACs, a 4-channel ADC, two headphone amplifiers, and a stereo Class-D amplifier into a single device, significantly reducing external components, BOM cost, and PCB footprint. The ALC269Q-VB6-CG supports 98dB dynamic range for both playback and recording, with headphone SNR up to 101 dB(A) and THD+N as low as 0.002% for high-fidelity audio. The embedded stereo Class-D amplifier directly drives 4Ω speakers with up to 2.3W per channel at 5V, eliminating the need for external amplifier chips. The Port A headphone amplifier eliminates external DC-blocking capacitors to remove pop noise. The ALC269Q-VB6-CG supports Acoustic Echo Cancellation (AEC), Beam Forming (BF), and Noise Suppression (NS) technology for significantly improved VoIP call quality. Five hardware EQ bands are programmable via BIOS without custom driver modifications. The ALC269Q-VB6-CG features two independent S/PDIF outputs for simultaneous connection to consumer audio devices and HDMI transmitters. Idle power consumption is only 1.8 mW, with active playback at approximately 12-18 mW. Realtek provides comprehensive driver support for Windows and Linux. The ALC269Q-VB6-CG offers system integrators and OEMs a highly competitive high-definition audio solution.
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FAQs:
1 What is the ALC269Q-VB6-CG chip
ALC269Q-VB6-CG is a high performance low power audio codec chip from Realtek widely used in computer devices to handle the conversion between digital audio signals and analog audio signals.
2 What package and pin count does it use
ALC269Q-VB6-CG adopts a QFN48 no lead surface mount package with 48 pins and a compact footprint with an exposed thermal pad on the bottom suitable for small form factor PCBA designs.
3 What is the main function of the chip
ALC269Q-VB6-CG features a high performance DAC and ADC and is mainly responsible for audio recording through microphone input and audio playback through speakers or headphones.
4 Which host audio interface does it support
ALC269Q-VB6-CG supports Intel High Definition Audio standards and the I2S digital audio bus interface for efficient data communication with mainstream PC chipsets or embedded host SoCs.
5 What are the operating voltage and temperature ranges
ALC269Q-VB6-CG uses a multi voltage independent power design with digital rails typically at 1.5V and 3.3V and analog rails at 3.3V. The commercial operating temperature range is from zero degrees Celsius to plus seventy degrees Celsius.
6 What application scenarios is this chip suitable for
ALC269Q-VB6-CG is widely used in laptops all-in-one PCs tablets Mini-PCs and commercial or consumer motherboards requiring high quality audio input and output capabilities.
7 What built in audio hardware features does it have
ALC269Q-VB6-CG features a built in stereo headphone amplifier for direct headphone driving supports dual microphone inputs and incorporates low power and power saving technologies to extend battery life in portable devices.
8 What are the PCB design considerations for the QFN48 package
For ALC269Q-VB6-CG, the thermal pad on the bottom should be grounded to a large copper area for heat dissipation. Analog audio traces should be kept short and isolated from digital signals and filtering capacitors should be placed near the power pins to reduce noise.
9 Does the chip support audio enhancement or noise reduction
ALC269Q-VB6-CG integrates advanced DSP processing capabilities that support hardware level echo cancellation ambient noise reduction and multi channel mixing for improved call and playback quality.
10 How is the driver compatibility for this chip on different systems
ALC269Q-VB6-CG has mature and universal drivers on mainstream operating systems such as Windows Linux and Chrome OS supporting plug and play for automatic recognition as a standard audio device.