ALC897
High-definition 7.1 channel audio codec for PC motherboard applications
Product Overview
Description
The Realtek ALC897 is a high-definition 7.1 channel audio codec designed for PC motherboards, delivering quality audio for mainstream desktop and laptop applications with comprehensive audio features.
This codec supports 7.1 channel playback with 97dB SNR DAC and 90dB SNR ADC, providing clear audio for gaming, entertainment, and communication applications. The integrated headphone amplifier drives headphones up to 600 ohms.
ALC897 includes advanced features like Jack Detection, S/PDIF output, and support for multiple audio streams. It's the standard audio solution for many PC motherboards due to its balance of features, quality, and cost.
Product Series
ALC
Primary Application
Desktop motherboards
Key Features
- 7.1 channel surround sound
- 97dB SNR DAC
- 90dB SNR ADC
- 192kHz/24bit support
- Integrated headphone amp
- Jack detection
- S/PDIF output
- Intel HD Audio compatible
Specifications
| Channels | 7.1 Channel |
|---|---|
| DAC SNR | 97 dB (A-Weighted) |
| ADC SNR | 90 dB (A-Weighted) |
| Sample Rates | Up to 192kHz/24bit |
| Headphone Amp | Up to 600 ohm support |
| Interface | Intel HD Audio |
| Features | Jack Detection, S/PDIF |
| Operating Temperature | 0°C to +70°C |
| Package | QFP-48 |
| Power | 3.3V/5V |
Applications
Desktop motherboards
Electronic system design
Laptop computers
Electronic system design
All-in-one PCs
Electronic system design
Gaming systems
Electronic system design
HTPC systems
Electronic system design
FAE Expert Insights
"ALC897 is relates to PC audio. It delivers solid performance for the vast majority of users. The 97dB SNR is good for mainstream applications, and the 7.1 support covers gaming needs. We recommend this for standard desktop and laptop designs where premium audio isn't required."
Reliable mainstream audio codec for PC motherboards
— Sarah Johnson, BeiLuo
Frequently Asked Questions
What is the audio quality of ALC897 compared to premium audio solutions?
ALC897 provides good quality audio for mainstream applications with 97dB SNR. For comparison, premium solutions like ALC4080 offer 120dB SNR. For most users listening to music, gaming, and video calls, ALC897 quality is satisfactory. Audiophiles and professional users may prefer premium solutions, but ALC897 meets the needs of 90% of PC users.
ALC897 sufficient for mainstream use. Upgrade to ALC4080 for audiophile quality.
Does ALC897 support gaming surround sound?
Yes, ALC897 supports 7.1 channel surround sound which is suitable for gaming. It works with Windows spatial sound and game audio engines to provide positional audio. The codec supports Dolby Digital and DTS encoding through S/PDIF for external surround systems. For competitive gaming, the audio latency is acceptable for most users.
Good for gaming surround sound. Supports Windows spatial audio and Dolby/DTS.
What headphone impedance can ALC897 drive?
ALC897's integrated headphone amplifier can drive headphones from 16 ohms to 600 ohms. For typical 32-ohm headphones, it provides ample volume. Higher impedance headphones (250-600 ohms) may have lower maximum volume but should still reach comfortable listening levels. For very high-end headphones, an external amplifier may provide better dynamics.
Drives most headphones well. External amp optional for high-end headphones.
Is ALC897 compatible with Windows 10/11?
Yes, ALC897 is fully compatible with Windows 10 and Windows 11. Realtek provides WHQL-certified drivers through Windows Update and their website. The codec supports all Windows audio features including spatial sound, audio enhancements, and multiple audio streams. Linux support is also available through ALSA drivers.
Full Windows 10/11 support with WHQL drivers. Linux ALSA compatible.
What is the typical BOM cost impact of ALC897?
ALC897 is a cost-effective solution with minimal external component requirements. Typical BOM cost including codec, capacitors, and connectors is under $2. This makes it attractive for mainstream PC motherboards where audio is important but not a premium feature. The QFP package is also easy to assemble.
Very cost-effective audio solution. Low BOM cost for mainstream designs.