AK4482VT - 24-Bit 216kHz Stereo Audio DAC | Asahi Kasei
Référence : AK4482VT ✓ ActifAK4482VT Présentation
An audio DAC is a converter that transforms digital PCM or I2S audio data into analog voltage signals suitable for amplifiers, headphones, speakers, and line-level equipment. Within the signal-chain hierarchy, it belongs to the digital-to-analog converter class, supports the ADC/DAC product category, and operates as an audio interface IC within a broader semiconductor system.
The AK4482 uses AKM's multi-bit modulator architecture to provide wide dynamic range. The manufacturer datasheet identifies a dynamic range of 111 dB, 24-bit resolution, two audio channels, and support for sampling rates up to 216 kHz. Its switched-capacitor outputs are fully differential, eliminating the need for output AC-coupling capacitors while helping maintain performance in systems experiencing excessive clock jitter.
The AK4482VT accepts digital audio through an I2S interface and converts each channel into a balanced analog output. This architecture is appropriate for digital audio sources that already perform format conversion, sample-rate conversion, volume control, or signal routing before the DAC stage. The converter separates digital processing from the analog output path, allowing the analog section to be optimized for low distortion and channel symmetry.
Typical uses include premium digital audio equipment, professional audio interfaces, consumer hi-fi systems, game-console audio equipment, network-audio players, and digital recording equipment. The 16-pin TSSOP package makes the part suitable for compact boards, while the two-channel architecture reduces component count compared with implementing separate single-channel converters.
Power-supply layout, grounding, clock quality, and output-stage loading directly affect converter performance. Place input, output, and reference-related bypass connections according to the manufacturer application guidance, keep analog and digital return currents separated where practical, and terminate unused inputs according to the datasheet. The differential outputs should be paired with a suitable reconstruction and line-output network for the intended load.
This product record combines the exact AK4482VT specifications, sourcing guidance, application analysis, and engineering cautions with a strict review of same-footprint replacements. It distinguishes documented electrical characteristics from parameters that require confirmation in the manufacturer datasheet, helping engineers assess fit before committing to a layout or production release.
Alternatives de remplacement direct pour AK4482VT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
AK4482VT-E2
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AK4482VT Valeurs maximales et caractéristiques électriques
| Device Type | Stereo audio digital-to-analog converter |
| Résolution | 24 bit |
| Number of Channels | 2 channels |
| Maximum Sampling Rate | 216 kHz |
| Dynamic Range | 111 dB |
| Digital Audio Interface | I2S |
| Tension d'alimentation | 5 V |
| Output Architecture | Fully differential switched-capacitor output |
| Output Coupling Requirement | No AC-coupling capacitors required |
| Modulator Architecture | AKM multi-bit architecture |
| Boîtier | 16-pin TSSOP |
| Type de montage | Surface mount |
| Channel Count | 2 |
| Application Category | Digital audio equipment |
Guide de configuration des broches du AK4482VT 16-pin tssop
Configuration des broches du AK4482VT (boîtier 16-pin tssop). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour AK4482VT.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
AK4482VT convient pour 6 applications: Professional Audio Interface, High-Resolution Hi-Fi Player, Digital Recording Equipment, Game Console Audio, Network Audio Player, Premium Two-Channel Audio Gear.
Professional Audio Interface
The AK4482VT fits a two-channel professional audio output stage when the source already provides 24-bit I2S audio. Its 111 dB dynamic range and support for sampling rates up to 216 kHz provide useful resolution for recording and monitoring equipment. The fully differential switched-capacitor outputs can feed a balanced line-output stage without conventional output AC-coupling capacitors. Designers should still implement the manufacturer-prescribed output network, separate noisy digital return currents from analog paths, and verify clock jitter at the complete interface rather than at the converter alone.
Recommandé
High-Resolution Hi-Fi Player
The AK4482VT is appropriate for a high-resolution network or disc player that accepts digital audio and requires a clean balanced analog output. Its 24-bit resolution and maximum 216 kHz sampling-rate support allow compatible source data to pass through without reducing the stated conversion capability. The 111 dB dynamic range supports low-noise playback, while differential outputs simplify balanced line routing. Clock quality remains important: keep the converter away from high-current output-amplifier traces and confirm that the transport supplies a stable, low-jitter clock.
Recommandé
Digital Recording Equipment
The AK4482VT can serve as the playback-side DAC in multichannel recording equipment where a two-channel 24-bit output is required. Its support for sampling rates up to 216 kHz accommodates high-resolution project files when the complete signal path is designed for those rates. Differential switched-capacitor outputs support balanced routing and avoid output AC-coupling capacitors. Validate output headroom, reconstruction-filter behavior, and analog grounding against the intended preamp or monitor-amplifier input to avoid clipping or unintended filtering.
Recommandé
Game Console Audio
The AK4482VT can provide a compact stereo analog output stage for game consoles and multimedia systems that carry 24-bit I2S audio. Its 16-pin TSSOP package supports space-constrained PCB layouts, while the 216 kHz capability covers high-rate source formats when supported elsewhere in the console. Use the differential outputs to feed a headphone or line amplifier with suitable gain. Because audio bursts can create rapidly changing digital current, provide local supply bypassing and keep power-converter and processor return paths away from the converter’s analog outputs.
Recommandé
Network Audio Player
The AK4482VT fits the final analog stage of a network-audio player after network reception, file decoding, and sample-rate conversion. The converter accepts I2S data and offers 24-bit resolution, 111 dB dynamic range, and operation up to 216 kHz, supporting high-resolution playback where the rest of the chain preserves the source format. Differential outputs simplify connection to a balanced amplifier. The implementation should use a low-jitter clock, short digital routes, stable analog grounding, and output filtering matched to the target amplifier input.
Recommandé
Premium Two-Channel Audio Gear
The AK4482VT is suitable for premium compact stereo equipment where two channels, low noise, and a small package are priorities. Its 111 dB dynamic range and 24-bit conversion establish a high-performance endpoint, while fully differential outputs provide flexibility for balanced interconnects and can reduce susceptibility to noise coupled equally into both channels. The 16-pin TSSOP footprint eases multi-board layout planning. Final performance depends on the reconstruction and line-output stages, so test THD+N, output level, channel matching, and clock-jitter sensitivity in the assembled product.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AK4482VT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | AK4482VT-E2 |
|---|---|---|
| Package | 16-pin TSSOP | 16-pin TSSOP |
| Brand | Asahi Kasei Microdevices | Asahi Kasei Microdevices |
Principaux différenciateurs
- High-resolution stereo conversion in a compact package (vs AK4482VT-E2)
- Differential switched-capacitor output architecture (vs AK4482VT-E2)
- Multi-bit modulator for wide dynamic range (vs AK4482VT-E2)
Notes de conception
Route the I2S data, clock, and latch signals as compact digital traces, but keep them away from the differential analog outputs and output-network components. Confirm the complete pin assignment against the manufacturer pin-description table before fabrication. A short clock route reduces sensitivity to added noise and timing distortion, while a quiet analog region helps preserve the benefit of the converter's 111 dB dynamic-range rating.
Place the 5 V bypass capacitor and any additional decoupling recommended by the manufacturer close to the corresponding supply terminals. Use a low-impedance ground reference for the digital interface, and avoid sharing narrow return paths with loudspeaker, headphone, or switching-converter currents. Validate the power net under audio burst conditions because transient current can degrade the analog output even when the converter's steady-state ratings are satisfactory.
Treat clock quality as part of the complete audio conversion path. Use short interconnects between the clock source, transport, and AK4482VT, minimize stubs, and keep the clock away from analog output routing. The manufacturer datasheet highlights the jitter-related benefit of its fully differential switched-capacitor outputs, but that benefit depends on eliminating unnecessary board-level clock degradation before the signal reaches the converter.
Do not add conventional output AC-coupling capacitors automatically; the manufacturer states that the fully differential switched-capacitor outputs do not require them. Instead, implement the documented reconstruction and output network. Also confirm the analog output amplitude, output impedance, digital timing, and operating-mode setup in the manufacturer datasheet because those parameters were not stated in the product-search summaries.
Informations de conformité
The verified search results do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status for AK4482VT. AEC-Q100 is not applicable because the device is an audio converter rather than an automotive-qualified component.