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AK4499EXEQ
AK4499EXEQ
| Part Number | AK4499EXEQ |
|---|---|
| Manufacturer | Asahi Kasei Microdevices (AKM) |
| Category | Integrated Circuits (ICs) > Data Acquisition – Digital to Analog Converters (DAC) |
| Description | Flagship 135dB Ultra‑Low Distortion 2‑Channel Switched Resistor DAC, High‑Resolution VELVET SOUND Architecture, 64‑Pin HTQFP Package. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The AK4499EXEQ is AKM flagship stereo switched‑resistor DAC adopting VELVET SOUND™ architecture. It must work with AK4191EQ modulator chip, delivering 135dB SNR and ‑124dB THD+N. Supports PCM up to 1536kHz and DSD1024, housed in 64‑HTQFP(10×10mm) package, ideal for high‑end Hi‑Fi and professional audio equipment.
Core Advantages
Digital‑Analog Separation Design
Separates digital modulator and analog DAC to suppress digital noise interference.
Excellent Audio Performance
135dB SNR,‑124dB THD+N, adopts multi‑bit switched‑resistor DAC technology.
Ultra‑high Resolution Support
Supports PCM 1536kHz and DSD1024 high‑resolution audio input.
VELVET SOUND™ Tuning
AKM proprietary audio technology for transparent and musical sound performance.
Key Specifications
| Brand | Asahi Kasei Microdevices (AKM) |
|---|---|
| RoHS Status | RoHS Compliant / Lead‑Free |
| EDA / CAD | PCB Footprint & 3D Model Available upon Request |
| Warranty | 1‑Year Standard Quality Warranty |
| Package / Case | 64‑HTQFP (10mm x 10mm) |
| Mounting Type | Surface Mount Device (SMD/SMT) |
| Surface Marking / Silkscreen | AK4499EXEQ / AKM Logo |
| Number of Channels | 2 Channels (Stereo Switched Resistor DAC) |
| Signal‑to‑Noise Ratio (SNR) | 135 dB (Mono Mode) / 132 dB (Stereo Mode) |
| Total Harmonic Distortion (THD+N) | -124 dB |
| Supported PCM Sample Rate | Up to 1536 kHz (64‑bit input support) |
| Supported DSD Frequency | Up to DSD1024 (45.1584 MHz) |
| Analog Supply Voltage | 4.75V ~ 5.25V (Typ 5.0V) |
| Digital Supply Voltage | DVDD:1.7V‑1.98V; TVDD:1.7V‑3.6V Logic Interfaces |
| Interface Type | Multi‑bit Modulator Data Interface |
| Input Logic Level | CMOS |
| Operating Temperature | -40°C to +85°C (Industrial Grade) |
Typical Applications
- Flagship Hi‑Fi Desktop DACs and High‑End Integrated Audio Amplifiers
- Professional Studio Mastering Converters and Mixing Audio Interfaces
- High‑Resolution Digital Audio Players (DAPs) and Premium Headphone Amplifiers
- Luxury Automotive Sound Systems and High‑End AV Receivers
- Precision Audio Measurement and Testing Instruments
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1‑2 business days |
| Delivery Time | 3‑7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What is the core advantage of AK4499EXEQ?
A: Digital‑analog separated architecture, isolates digital noise, delivers high‑transparency audio performance when paired with AK4191EQ.
Q2: What audio formats does AK4499EXEQ support?
A: PCM up to 1536kHz, DSD up to DSD1024.
Q3: What is the package of AK4499EXEQ?
A: 64‑pin HTQFP‑10×10mm, with exposed thermal pad for heat dissipation.
Q4: How to get datasheet, schematic or bulk quotation?
A: Submit quick inquiry form for datasheet, footprint, stock check and volume price.
Q5: Difference between AK4499EXEQ and AK4499EXEQ‑L?
A: Chip performance & pinout are identical. Suffix ‑L = cut‑tape for small‑batch order, fully interchangeable. Use AK4499EXEQ for BOM.
Q6: Can AK4499EXEQ work alone?
A: Cannot run standalone. Must be used together with modulator chip AK4191EQ.
Q7: What are alternative compatible DAC models?
A: AK4499EQ is previous‑generation part, not fully pin‑to‑pin compatible. Alternative reference: AK4498EQ, hardware modification required.
Q8: What does suffix EQ mean?
A: EQ stands for HTQFP surface‑mount package. Different suffixes represent different packages, do not mix in schematic.
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