AK4413EQ - 120dB 24-Bit 4ch Audio DAC | Asahi Kasei
MPN： AK4413EQ ✓ 啟用中AK4413EQ 概覽
An audio DAC is the final conversion stage in a digital audio signal chain, transforming I2S or other digital audio words into analog voltage signals that drive amplifiers, headphones, or line-level inputs. The DAC sits in the broader hierarchy of data-converter integrated circuits, alongside ADCs, and ultimately within the semiconductor and signal-processing domains that define modern audio playback, recording, and broadcast hardware.
Key features of the AK4413EQ include its 120 dB dynamic range figure, which sets the noise floor and usable signal-to-noise ratio for the analog outputs, and 24-bit word-length handling that preserves the full depth of high-resolution source material. Four-channel output allows a single device to serve surround playback, multi-zone listening, headphone plus line-out systems, or digital mixing consoles without requiring four separate converter packages.
Architecturally, the AK4413EQ combines a high-performance switched-capacitor output stage with a low-noise internal reference and digital interpolation/filtering for decimation of the incoming high-rate stream. Because it supports sampling rates up to 216 kHz, the converter handles oversampled source material used in high-resolution and mastering workflows where standard 44.1 kHz or 48 kHz rates would not suffice.
Typical applications include AV receivers, USB and network audio players, digital mixing consoles, professional monitors, automotive head units, and headphone DAC/DSP platforms. For each of these, the four-channel architecture and high dynamic range reduce the number of discrete converter boards needed.
One key design consideration is that the AK4413EQ requires careful analog and digital layout separation, with short, low-impedance routing from the digital interface to the DAC and a clean, star-grounded analog output section. Filter and output capacitors should be placed directly at the relevant pins to minimize added noise and distortion.
This page organizes the AK4413EQ specifications, drop-in conversion alternatives, package details, and practical design guidance into a single engineering reference that supports part selection, schematic review, and sourcing decisions.
直接替換替代品，適用於 AK4413EQ — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： AK4413EQ （相同外形與佔位） — 差異在於 Dynamic Range, Number of Channels, Package, Pin Count, Analog Output Configuration.
AK4413VN
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
AK4438VN
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →AK4490EQ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →AK4413EQ 最大額定值與電氣特性
| Manufacturer | Asahi Kasei Microdevices/AKM |
| Device Type | Audio DAC (Digital-to-Analog Converter) |
| Number of Channels | 4 channels |
| DAC Resolution | 24 bit |
| Dynamic Range (SNR) | 120 dB |
| Maximum Sampling Rate | 216 kHz |
| Digital Audio Interface | I2S |
| Package Type | 44-LQFP |
| 腳位數 | 44 pins |
| 安裝類型 | Surface Mount |
| Product Category | ADCs/DACs - Special Purpose |
| Datasheet Length | 48 pages |
AK4413EQ 44-lqfp 腳位配置指南
AK4413EQ（44-lqfp 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： AK4413EQ.
請參閱 資料表 以查看完整腳位配置。
典型應用
AK4413EQ 適用於 6 應用s: Multi-Channel AV Receiver DAC Stage, USB and Network Audio Player, Digital Mixing Console Output, Professional Studio Monitor, Automotive Head Unit and Cabin Audio, Headphone DAC and Portable Listening.
Multi-Channel AV Receiver DAC Stage
The AK4413EQ fits the main analog output stage of an AV receiver because a single 44-LQFP device converts four independent channels at 24-bit resolution with 120 dB dynamic range, which covers front left, front right, center, and surround channels in one package. Compared with four discrete single-channel converters, this arrangement cuts digital routing, clock distribution, and supply decoupling component count while keeping channel count flexible for 5.1 or 7.1 speaker layouts. The 216 kHz sampling ceiling also allows the receiver to pass high-resolution sources without rate conversion. In practice, designers place the AK4413EQ close to the speaker output drivers and run short analog traces to the coupling and filtering network, while keeping the I2S data bus away from the output pins so layout noise does not erode the 120 dB noise floor.
推薦
USB and Network Audio Player
In a USB or network audio player, the AK4413EQ serves as the terminal conversion stage where the jitter-cleaned I2S stream becomes analog line output. Its 24-bit word length and 120 dB dynamic range preserve the full depth of the digital source, and the 216 kHz maximum rate supports oversampled high-resolution content that many DACs cannot accept. Four outputs allow a single package to drive both a pair of line outputs and a headphone or auxiliary output without duplicating converter silicon. The practical consideration is that the digital interface must be re-clocked cleanly before it reaches the converter, and the analog output section should be physically separated from the USB controller and clock circuitry so switching noise from the digital side does not dominate the converter noise floor.
推薦
Digital Mixing Console Output
The AK4413EQ suits the output stage of a digital mixing console because each package delivers four analog outputs, so a 16-channel console can be built from a small number of converter packages rather than dozens of single-channel parts. The 120 dB dynamic range preserves the console's internal headroom when signals are near full scale, and the 216 kHz rate supports high-rate multitrack monitoring workflows. Console designers normally place the AK4413EQ close to the balanced line drivers and use a solid analog ground plane, keeping the I2S and clock traces on a separate section of the board so that switching edges do not couple into the outputs. Because converter channel-to-channel gain matching is important in a mixer, the four-channel configuration also reduces the number of separate trim and calibration points the design must handle.
推薦
Professional Studio Monitor
In a professional studio monitor, the AK4413EQ provides the high-resolution digital-to-analog conversion between the DSP and the power amplifier input stage. A 24-bit converter with 120 dB dynamic range ensures that the monitoring chain does not add audibly significant noise above the loudspeaker and amplifier noise floors, and the 216 kHz ceiling lets engineers audition 96 kHz and 192 kHz source material at full fidelity. The four outputs also enable a single converter to feed a subwoofer plus main channel pair plus a headphone monitor path, which simplifies the analog switching matrix. Designers route the converter outputs through a short passive filter network directly to the amplifier inputs and keep the amplifier heat and power stages physically apart from the converter's analog reference area to avoid gain drift with temperature.
推薦
Automotive Head Unit and Cabin Audio
The AK4413EQ is a logical fit for automotive head units that need several analog output channels for a multi-zone cabin system, such as main speakers, rear surrounds, and a center console output. Four channels from one 44-LQFP package reduce the footprint and the number of decoupled supply rails compared with multiple single-channel converters, which matters in a space-constrained console enclosure. The 120 dB dynamic range and 24-bit resolution support the high-resolution audio sources common in modern vehicle infotainment systems. For this application the design must confirm the temperature grade, supply range, and qualification status of the exact ordering code from the AKM datasheet, since automotive production programs also require EMC and transient immunity testing beyond the converter's own specifications.
推薦
Headphone DAC and Portable Listening
In a headphone DAC platform, the AK4413EQ provides the conversion stage for a portable or desktop listening device, where the four outputs can feed balanced and single-ended headphone channels plus a line-level output for an external amplifier. The 120 dB dynamic range and 24-bit resolution translate directly into lower audible noise floor for headphone listening, where high sensitivity exposes converter noise that would be inaudible on speakers. The 216 kHz maximum sampling rate allows DSD-derived or upsampled high-resolution streams to be converted without truncation. Because headphone output stages typically add their own volume-control and amplification gain, the converter should sit in a quiet analog section with the I2S data and clock traces kept off the output side of the board, and the DAC's reference and supply decoupling placed near the pins.
推薦
推薦產品摘要
工程參考資料，適用於 AK4413EQ — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | AK4413VN | AK4438VN | AK4490EQ | AK4493EQ | AK4497EQ |
|---|---|---|---|---|---|---|
| Package | 44-LQFP | 44-LQFP | 44-LQFP | 44-LQFP | 44-LQFP | 44-LQFP |
| Brand | Asahi Kasei Microdevices | Asahi Kasei Microdevices | Asahi Kasei Microdevices | Asahi Kasei Microdevices | Asahi Kasei Microdevices | Asahi Kasei Microdevices |
| Device Type | Audio DAC (Digital-to-Analog Converter) | Audio DAC | Audio DAC | Audio DAC | Audio DAC | Audio DAC |
| Channel Density vs AK4413EQ | 4 outputs per package (baseline) | Equal channel count | Lower channel count (multi-channel DAC, fewer outputs) | Half the outputs (2 vs 4 channels) | Half the outputs (2 vs 4 channels) | Half the outputs (2 vs 4 channels) |
主要差異化特點
- Four analog channels from a single 44-LQFP package (對比AK4497EQ)
- 216 kHz maximum sampling rate in a four-channel device (對比AK4490EQ)
- I2S input with a dedicated four-channel output stage (對比AK4438VN)
- Same 44-LQFP footprint family for simplified sourcing (對比AK4413VN)
設計說明
Separate the analog and digital domains on the board: route the I2S data, word-select, and clock lines on the digital side and keep the DAC analog output pins, output filter network, and coupling capacitors on the analog side. Place the output filter and coupling capacitors directly at the DAC pins to minimize trace-induced pickup. With a 120 dB dynamic range target, even short stubs of analog trace next to clock edges can add audible noise, so use a solid analog ground plane with a single connection strategy rather than a split plane under the converter.
Provide dedicated, well-decoupled supply paths for the analog and digital sections of the AK4413EQ and keep the analog return current path short and low impedance. Place the bulk and high-frequency decoupling capacitors as close as possible to the corresponding supply and ground pins, with the smallest-value ceramic capacitor at the pins and the bulk capacitor slightly back on the net. Verify the actual analog and digital supply voltages, the permitted supply ripple, and the power-up sequencing requirements against the electrical characteristics in the AKM AK4413 datasheet before finalizing the power tree.
The AK4413 family documents specific control-pin behavior: when the state of the PSN pin is changed, the AK4413 should be reset by the PDN pin. Designs that switch the power-sense or mute state dynamically should therefore sequence PDN properly instead of relying on the PSN change alone. Also avoid powering the digital interface while the analog section is unpowered, as back-powering through the input pins can cause the converter to fail to start or behave unpredictably after power cycling.
Drive the I2S clock and data lines from a source with matched, controlled impedance and keep the traces short, since the AK4413EQ accepts data rates up to 216 kHz sampling and therefore very high bit rates. Where the converter sits far from the source, insert series source termination close to the driving device and confirm the data/clock setup and hold times from the digital interface timing tables in the manufacturer datasheet, because marginal timing shows up as intermittent clicks rather than a clean failure.
Estimated: with a 44-LQFP package and typical converter dissipation in the tens to low hundreds of milliwatts, junction temperature rise is modest compared with power amplifiers on the same board. Verify the actual dissipation using the supply currents and voltage drops listed in the AKM AK4413 datasheet electrical characteristics, then confirm the ambient operating range for the chosen ordering code. Keep the analog output section away from hot regulator and amplifier stages, because converter performance and channel matching drift with temperature.
合規資訊
RoHS, REACH, halogen-free, and conflict-minerals declarations are not stated on the distributor listings for this ordering code; confirm status with the manufacturer product page or the material declaration for the exact lot.
