AK4528VF - 24-Bit 96kHz Audio CODEC | AKM | LSSOP-28
Référence : AK4528VF ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.44 | $3,44 |
| 10 | $3.18 | $31,80 |
| 100 | $2.84 | $284,00 |
| 500 | $2.55 | $1 275,00 |
| 1 000 | $2.3 | $2 300,00 |
AK4528VF Présentation
A CODEC (coder-decoder) is an audio mixed-signal IC that converts analog microphone or line-level signals into digital data on the record side and converts stored or streaming digital audio back into analog signals on the playback side. Within the broader signal-chain taxonomy, an audio CODEC sits between the analog front end (microphone pre-amplifier, line driver) and the digital host (DSP, microcontroller, SoC) and is itself a member of the audio converter category alongside standalone ADCs and DACs.
Key features of the AK4528VF include the Enhanced Dual Bit ADC for wide dynamic range, the Advanced Multi Bit DAC with SCF output stage, support for 96 kHz operation, a single stereo ADC plus single stereo DAC on one chip, and a serial digital audio interface for connection to standard DSPs, SoCs, and microcontrollers. The integrated SCF output stage removes the need for an external high-frequency post-filter and contributes to the part's high jitter tolerance, a useful trait when the CODEC is fed from a recovered clock in a digital-audio transport.
Internally the AK4528VF combines a switched-capacitor ADC front end, a multi-bit delta-sigma modulator, decimation/interpolation filters, and a multi-bit DAC with switched-capacitor low-pass filtering. This architecture trades some analog simplicity for very high in-band linearity and low out-of-band noise, allowing the chip to meet the dynamic-range requirements of professional and prosumer recording at sample rates up to 96 kHz without an external reconstruction filter.
Typical applications for the AK4528VF include professional and prosumer recording interfaces, digital mixing desks, broadcast and studio equipment, AV receivers and effects processors, and high-end consumer audio playback. Its combination of 24-bit resolution, 96 kHz support, integrated ADC and DAC, and LSSOP-28 footprint makes it a convenient single-chip front end for systems that previously required a separate ADC plus a separate DAC.
When designing with the AK4528VF, pay attention to PCB layout: keep analog inputs and outputs physically separated from the digital interface traces, place the recommended reference-voltage capacitors near the supply pins, and observe the timing requirements in the AKM datasheet for the serial audio interface. Following the AKM reference schematic is the fastest path to achieving the datasheet's dynamic-range and THD+N numbers; a wiring gap between analog and digital grounds or a long trace in the MCLK path will cost measurable performance.
This page synthesizes distributor pricing, drop-in and parametric alternatives, application context, and practical design notes for the AK4528VF in a single place, complementing the manufacturer datasheet with engineering guidance not always present on distributor listings.
Alternatives de remplacement direct pour AK4528VF — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
AK4528VM
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AK4528VF Spécifications
| Product Type | Audio CODEC (ADC + DAC) |
| Résolution | 24-bit |
| Number of ADCs | 1 (stereo) |
| Number of DACs | 1 (stereo) |
| ADC Architecture | Enhanced Dual Bit (switched-capacitor delta-sigma) |
| DAC Architecture | Advanced Multi Bit with SCF output |
| Maximum Sample Rate | 96 kHz |
| Data Interface | Serial audio (audio-specific serial interface) |
| Sigma-Delta | Yes |
| Output Filter | Integrated SCF (switched-capacitor filter) |
| Jitter Tolerance | High (SCF output stage) |
| Boîtier | LSSOP-28 (PDSO28, 0.65 mm pitch) |
| Type de montage | Surface Mount |
| Lifecycle | Obsolete (per Xecor listing dated 2026-10-06) |
Configuration des broches de AK4528VF
| Broche 1 | VSS — Digital ground |
| Broche 2 | VD — Digital supply voltage |
| Broche 3 | LRCK — Left/right word clock for serial audio interface |
| Broche 4 | BICK — Serial audio bit clock |
| Broche 5 | SDTO — Serial audio data output from the ADC |
| Broche 6 | SDTI — Serial audio data input to the DAC |
| Broche 7 | MCLK — Master clock input for internal converters and SCF |
| Broche 8 | CSN — Chip select / mode control (per datasheet) |
| Broche 9 | CCLK — Control clock for serial control interface |
| Broche 10 | CDTI — Control data input for serial control interface |
| Broche 11 | CDTO — Control data output for serial control interface |
| Broche 12 | VSS — Analog/digital ground |
| Broche 13 | VA — Analog supply voltage |
| Broche 14 | VREFH — ADC reference voltage high |
| Broche 15 | VREFL — ADC reference voltage low |
| Broche 16 | LIN+ — ADC left-channel positive analog input |
| Broche 17 | LIN- — ADC left-channel negative analog input |
| Broche 18 | RIN+ — ADC right-channel positive analog input |
| Broche 19 | RIN- — ADC right-channel negative analog input |
| Broche 20 | VSS — Analog ground |
| Broche 21 | LOUT+ — DAC left-channel positive analog output |
| Broche 22 | LOUT- — DAC left-channel negative analog output |
| Broche 23 | ROUT+ — DAC right-channel positive analog output |
| Broche 24 | ROUT- — DAC right-channel negative analog output |
| Broche 25 | VREF — DAC reference voltage (per datasheet) |
| Broche 26 | VA — Analog supply voltage |
| Broche 27 | TEST — Test pin (tie per datasheet recommendations) |
| Broche 28 | VSS — Ground |
Applications typiques
AK4528VF convient pour 7 applications: Professional Audio Recording Interface, Digital Mixing Console and Studio Outboard, AV Receiver and Home Theater Processor, Broadcast and Studio Playback Equipment, High-End Consumer Audio and CD-R Recorder, Musical Instrument and Effects Processor, Automotive Head Unit Auxiliary Audio Path.
Professional Audio Recording Interface
The AK4528VF's 24-bit resolution and 96 kHz maximum sampling rate, combined with the Enhanced Dual Bit ADC architecture, give it wide dynamic range on the record path that suits USB and FireWire audio interfaces, multichannel mic preamp units, and field recorders. The single-stereo ADC topology integrates cleanly into a two-channel input stage with a single +5 V analog supply, and the integrated digital decimation filter removes the need for external anti-alias hardware. Engineers typically pair the AK4528VF with a microphone preamplifier such as the THAT 1570 or the SSM2019 and feed the serial audio output into a DSP or USB streaming controller for host capture. Compared with a standalone ADC plus DAC solution, the integrated ADC saves PCB area while still meeting professional 24-bit/96 kHz dynamic-range targets when the AKM reference layout is followed.
Recommandé
Digital Mixing Console and Studio Outboard
In a digital mixing console channel strip, the AK4528VF provides a stereo record path and a stereo playback monitor path on a single 28-pin IC, simplifying per-channel PCB routing in multichannel frames. The Advanced Multi Bit DAC with integrated SCF output delivers low out-of-band noise and high jitter tolerance, so the part can be fed from a recovered clock without measurable THD+N penalty, which is critical for summing buses. The 0.65 mm pitch LSSOP-28 footprint supports dense channel cards while keeping analog and digital sections physically separated for low crosstalk. Designers typically route the AK4528VF's serial audio to a console DSP and use the integrated ADC for insert-effect loop-back monitoring, replacing a previous two-chip ADC-plus-DAC implementation.
Recommandé
AV Receiver and Home Theater Processor
AV receivers and home theater processors benefit from the AK4528VF's 24-bit/96 kHz-capable stereo ADC and DAC pair for zone playback, headphone channels, and effect-loop processing. The Enhanced Dual Bit ADC captures low-distortion analog sources such as FM tuners, phono stages, or legacy analog inputs for digital-room-correction processing, while the Advanced Multi Bit DAC with SCF drives line outputs without a costly analog reconstruction filter. The 96 kHz maximum sampling rate is sufficient for DVD-A and high-resolution compressed formats found in mid-tier AV receivers, and the single-supply operation keeps the power section simple. Compared with separate ADC and DAC ICs, the AK4528VF saves board area and BOM on the secondary-zone audio path.
Recommandé
Broadcast and Studio Playback Equipment
Broadcast playback decks, on-air monitors, and production studio monitors use the AK4528VF as a stereo monitor-grade DAC plus a confidence-record ADC in the same chip. The Advanced Multi Bit DAC's high jitter tolerance matters in broadcast, where the reference clock is recovered from an AES3 or SPDIF stream and can carry non-trivial jitter. The 96 kHz sample-rate support covers 48 kHz broadcast formats with room to spare, and the integrated SCF output removes the post-DAC filter that traditionally consumed PCB space in 24-bit playback chains. Compared with a generic audio CODEC, the AK4528VF's Enhanced Dual Bit ADC adds useful dynamic range for off-air confidence monitoring.
Recommandé
High-End Consumer Audio and CD-R Recorder
Standalone CD-R/RW recorders, mastering decks, and high-end consumer playback units use the AK4528VF for simultaneous analog input capture (for CD-R burning from analog sources) and analog output playback. The 24-bit/96 kHz-capable stereo ADC with Enhanced Dual Bit architecture captures analog vinyl or tape sources for digital archiving, while the Advanced Multi Bit DAC with SCF feeds the analog line output to the user's amplifier with low out-of-band noise. The LSSOP-28 footprint is friendly to single-board consumer designs where PCB area is constrained. Designers typically pair the AK4528VF with a microcontroller that handles the CD-R burning, the user interface, and the AK4528VF's serial audio protocol configuration.
Recommandé
Musical Instrument and Effects Processor
Digital guitar amplifiers, multi-effects pedals, and synthesizers use the AK4528VF as a stereo instrument-input ADC plus stereo line/headphone-output DAC on a single chip, simplifying the analog I/O section. The 24-bit Enhanced Dual Bit ADC provides wide dynamic range for instrument-level inputs after an external preamp, and the Advanced Multi Bit DAC with SCF output preserves detail in dry and wet signal blends. The 96 kHz maximum sampling rate supports modern multi-effects algorithms that benefit from extended bandwidth, and the LSSOP-28 surface-mount package fits into compact pedal or rack enclosures. Compared with separate ADC and DAC ICs, the AK4528VF cuts the analog BOM and the PCB area of the I/O section roughly in half.
Recommandé
Automotive Head Unit Auxiliary Audio Path
In automotive head units and infotainment systems designed around the AK4528VF's production era, the part served as a stereo auxiliary-input ADC plus a stereo line-output DAC for hands-free, navigation-prompt, and external-source playback paths. The 24-bit ADC captured external analog sources such as portable players, and the Advanced Multi Bit DAC drove the auxiliary line outputs feeding the main amplifier. The integrated SCF output stage simplifies the analog post-filter network, valuable in cost-sensitive automotive designs. Engineers maintaining these legacy head units can use the AK4528VF as a verified repair part when factory firmware and serial-audio routing match, with stock sourced through distributor and broker channels given obsolete lifecycle status.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AK4528VF — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | AK4528VM |
|---|---|---|
| Package | LSSOP-28 (PDSO28, 0.65 mm pitch) | LSSOP-28 (PDSO28, 0.65 mm pitch) - same |
| Brand | AKM (Asahi Kasei Microdevices) | AKM (Asahi Kasei Microdevices) |
| Resolution | 24-bit | 24-bit |
| Maximum Sample Rate | 96 kHz | 96 kHz |
| Number of ADCs / DACs | 1 / 1 (stereo each) | 1 / 1 (stereo each) |
| Data Interface | Serial audio | Serial audio |
| Sigma-Delta Modulator | Yes | Yes |
| DAC Output Filter | Integrated SCF (switched-capacitor) | Integrated SCF (switched-capacitor) |
| Lifecycle Status | Obsolete (per 2026-10-06 listing) | Obsolete (per 2026-10-06 listing) |
| Distinguishing Suffix | VF (LSSOP-28 tape & reel) | VM (LSSOP-28 tray, same die) |
Principaux différenciateurs
- Integrated stereo ADC and DAC with Enhanced Dual Bit + Advanced Multi Bit architectures (vs Discrete ADC plus discrete DAC solutions)
- Integrated SCF output removes the external post-DAC low-pass filter (vs Older AKM audio DACs that require an external reconstruction filter)
- 96 kHz-capable 24-bit serial audio interface in LSSOP-28 (vs Lower-sample-rate 24-bit audio CODECs in the same price tier)
Notes de conception
Keep the analog input traces (LIN+/LIN-, RIN+/RIN-) physically short and routed away from the digital interface traces (LRCK, BICK, SDTO, SDTI, MCLK). The AK4528VF integrates a sigma-delta ADC and DAC on one die, so a wiring gap between analog and digital grounds or a long trace in MCLK will couple digital noise into the analog path and cost measurable THD+N. Use a continuous analog ground plane under the analog pins and stitch the digital ground to it at a single point near the AK4528VF's VSS pins, per the AKM reference layout.
Place the recommended decoupling capacitors as close as practical to the VA, VD, and VREF pins of the AK4528VF. AKM's reference schematic typically specifies a small ceramic (e.g., 0.1 uF) in parallel with a larger bulk (e.g., 10 uF) on each supply rail. The analog and digital supplies should be derived from a low-noise regulator (e.g., a linear LDO downstream of a switching pre-regulator), because ripple on VA directly modulates the analog reference and degrades ADC dynamic range.
The AK4528VF's integrated SCF (switched-capacitor filter) output stage gives the part high jitter tolerance, but only if MCLK is clean. Drive MCLK from a low-jitter source (crystal oscillator or clean PLL output) and keep the MCLK trace short and impedance-matched. Long MCLK traces or shared clock buffers feeding noisy digital loads will reintroduce jitter the SACD feed down the SCF chain, reducing the dynamic range of the DAC.
Do not rely on a generic 'audio CODEC' footprint when laying out the AK4528VF's PCB; the LSSOP-28 (PDSO28) 0.65 mm pitch is a specific package that does not match a wider SOIC-28 footprint. Also note that as of 2026-10-06 the AK4528VF is listed as obsolete, so for new designs use a currently-produced 24-bit/96 kHz CODEC and avoid designing in the AK4528VF unless you are maintaining an existing product or have a validated last-time-buy plan.
Informations de conformité
Compliance fields could not be confirmed from the verified web data dated 2026-10-06. Refer to the AKM product page or the latest AK4528 datasheet for the authoritative RoHS / REACH / lead-free declarations.
