AK4621EF-E2 - 24-bit 192kHz Stereo Audio CODEC | AKM
MPN: AK4621EF-E2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.15 | $515.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.1 | $4,100.00 |
AK4621EF-E2 Overview
An audio CODEC (Coder-Decoder) is a mixed-signal integrated circuit that converts analog audio signals into digital data for processing, recording, or transmission (ADC) and converts digital audio back into analog signals for playback (DAC). CODECs sit within the broader hierarchy of audio IC -> mixed-signal IC -> data converter IC -> semiconductor, and serve as the central analog I/O block of virtually every professional and consumer audio product with digital connectivity.
Key features of the AK4621EF-E2 include 24-bit resolution, 192kHz maximum sample rate, 115dB ADC/DAC dynamic range, low-latency digital filter, hardware controllable via a serial audio interface, and on-chip microphone/line input mixer. The -E2 suffix indicates the tape-and-reel packaging option of the AK4621EF die. The 30-VSOP package provides compact board footprint while exposing all serial audio, control, and supply pins for flexible PCB routing.
The Enhanced Dual-Bit ADC and Advanced Multi-Bit DAC architectures deliver wide dynamic range and excellent jitter tolerance, suitable for pro-audio signal chains. Internal digital filtering offers low-latency operation suited to live monitoring applications. The serial audio interface accepts common I2S/left-justified formats, simplifying connection to hardware codecs, DSP engines, and USB/PCIe audio interfaces.
Typical applications include Pro Audio sound cards, Digital Audio Workstations (DAW), DVD-R, hard disk, and CD-R recording/playback systems, and musical instrument recording equipment. Designers value this part for its high dynamic range, low latency, and AKM's proven audio architecture.
When designing with this device, decouple AVDD and DVDD supplies separately near the IC pins and follow the datasheet's recommended analog-input RC network for optimal THD+N. The -E2 ordering code denotes tape-and-reel shipping, suitable for high-volume assembly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for AK4621EF-E2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AK4621EF-E2 (same form factor and footprint) — differing in Function, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AK4621EF
✅ Drop-In✓ In Stock
$4.25 / Unit
View Datasheet →AK4621B
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
AK4621EF-E2 Specifications
| Function | Audio CODEC (ADC + DAC) |
| Resolution | 24-bit |
| Number of Channels | 2 (stereo) |
| Maximum Sample Rate | 192 kHz |
| ADC Dynamic Range | 115 dB |
| DAC Dynamic Range | 115 dB |
| ADC Architecture | Enhanced Dual-Bit |
| DAC Architecture | Advanced Multi-Bit (SCF) |
| Digital Filter | Low Latency |
| Interface | Serial (I2S-compatible) |
| Digital Supply Voltage (DVDD) | 3.0 V to 3.6 V |
| Analog Supply Voltage (AVDD) | 4.75 V to 5.25 V |
| Package | 30-VSOP |
| Mounting Type | Surface Mount |
| Converter Type | Sigma Delta |
| RoHS Status | Compliant |
| Operating Temperature | -40C to +85C |
AK4621EF-E2 30-vsop Pin Configuration Guide
Pin configuration for AK4621EF-E2 (30-vsop package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for AK4621EF-E2.
Refer to the datasheet for full pin configuration.
Typical Applications
AK4621EF-E2 is suitable for 6 applications: Pro Audio Sound Cards, Digital Audio Workstations (DAW), DVD-R / Hard Disk / CD-R Recording-Playback Systems, Musical Instrument Recording, Studio Monitor Controllers, USB Audio Interfaces.
Pro Audio Sound Cards
The AK4621EF-E2's 115dB ADC and DAC dynamic range with 24-bit/192kHz support delivers studio-grade capture and playback for PCIe/USB pro-audio sound cards. Its Enhanced Dual-Bit ADC and Advanced Multi-Bit DAC architectures provide wide dynamic range critical for music production; the 30-VSOP package keeps the analog front-end compact next to the host audio interface controller. Designers benefit from low-latency digital filter for live monitoring workflows.
Recommended
Digital Audio Workstations (DAW)
The AK4621EF-E2 supports up to 192kHz sample rate at 24-bit resolution, matching DAW engine requirements for lossless multi-track recording and overdubbing. Its 115dB dynamic range preserves low-level detail during quiet passages; the Advanced Multi-Bit DAC architecture ensures low out-of-band noise critical for monitor playback paths. The serial audio interface integrates cleanly with DSP and host-controller chips on the workstation motherboard.
Recommended
DVD-R / Hard Disk / CD-R Recording-Playback Systems
The AK4621EF-E2 is targeted by AKM for DVD-R, hard disk, and CD-R recording/playback equipment requiring 24-bit high-fidelity stereo. Its 115dB ADC dynamic range covers consumer hi-fi recording; the 192kHz max sample rate oversamples CD-standard 44.1kHz cleanly with relaxed analog filter requirements. The 30-VSOP package simplifies integration into slim-line consumer chassis alongside optical-drive controllers.
Recommended
Musical Instrument Recording
The AK4621EF-E2's Enhanced Dual-Bit ADC handles wide dynamic range inputs from instruments such as electric guitars, brass, and synthesizers without compression. Low-latency digital filter is critical for real-time monitoring during tracking sessions; 115dB dynamic range preserves harmonic detail in both quiet and loud passages. The serial audio interface drops into the audio front-end of USB audio interfaces and mixing consoles.
Recommended
Studio Monitor Controllers
The AK4621EF-E2's Advanced Multi-Bit DAC with Switched Capacitor Filter provides low out-of-band noise and high jitter tolerance, critical for studio monitor playback where any artifacts would mislead mixing engineers. 115dB DAC dynamic range matches high-end monitor speaker headroom; 24-bit/192kHz support handles high-resolution studio masters. The 30-VSOP footprint fits the compact analog boards of desktop monitor controllers.
Recommended
USB Audio Interfaces
The AK4621EF-E2 integrates cleanly into bus-powered or self-powered USB audio interfaces, providing 24-bit/192kHz stereo I/O at 115dB dynamic range for home-studio and field-recording rigs. The 30-VSOP footprint keeps analog section compact next to USB audio controller chips; Enhanced Dual-Bit ADC delivers wide dynamic range for microphone and line-level inputs. Low-latency digital filter supports real-time cue-mix monitoring over USB.
Recommended
Recommended Products Summary
Engineering reference data for AK4621EF-E2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AK4621EF | AK4621B |
|---|---|---|---|
| Package | 30-VSOP | 30-VSOP - same | 30-VSOP - same |
| Brand | Asahi Kasei Microdevices (AKM) | Asahi Kasei Microdevices | Asahi Kasei Microdevices |
| Resolution | 24-bit | 24-bit | 24-bit |
| Maximum Sample Rate | 192 kHz | 192 kHz | 192 kHz |
| Digital Supply (DVDD) | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Analog Supply (AVDD) | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Shipping Format | Tape & Reel (-E2) | Tray | Tray/Tape (per code) |
Key Differentiators
- Highest-in-class 115 dB ADC and DAC dynamic range with Enhanced Dual-Bit and Advanced Multi-Bit architectures (vs AK4621B)
- Tape-and-reel packaging for high-volume SMD assembly (vs AK4621EF (tray))
- Low-latency digital filter for live monitoring (vs AK4621B)
Design Notes
The AK4621EF-E2 requires separate analog (4.75 V to 5.25 V) and digital (3.0 V to 3.6 V) supply rails. Place a 10 uF bulk capacitor and a 0.1 uF ceramic decoupling capacitor on each AVDD/DVDD pin, located within 5 mm of the IC to suppress ripple and prevent digital noise coupling into the analog section.
Keep the analog input traces short and routed away from digital clocks (MCLK, BICK, LRCK) and the SDOUT/SDIN serial data lines. Use a ground plane split with a single-point connection between analog and digital grounds under the IC to minimize ground-loop coupling, as recommended in the AKM datasheet application circuit.
Estimated: for 192 kHz / 24-bit operation, total serial audio data rate is 64 x BICK relative to LRCK; ensure MCLK is jitter-clean (less than 50 ps RMS) for optimal DAC dynamic range. The Advanced Multi-Bit DAC architecture tolerates moderate jitter, but excessive clock noise will degrade the 115 dB dynamic range target.
Do not operate with AVDD outside 4.75-5.25 V or DVDD outside 3.0-3.6 V - this will permanently degrade SNR. Ensure master clock is stable before releasing reset (PDN pin deassertion). Always sequence power-down by muting outputs via the digital mute register before pulling PDN low to avoid click/pop artifacts on monitors.
Compliance Information
RoHS compliance per AKM product page. Halogen-free status not explicitly stated in verified web data - set to unknown. Not qualified for AEC-Q100 (consumer/pro audio application, not automotive).
