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AK5381
Evaluation board Rev.A for AK5381
AK5381
Evaluation board Rev.A for AK5381
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Service & Packaging
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AK5381 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
GENERAL DESCRIPTIONThe AK5381 is a stereo A/D Converter with wide sampling rate of 4kHz ∼ 96kHz and is suitable for High-end audio system. The AK5381 achieves high accuracy and low cost by using Enhanced dual bit ∆Σ techniques. The AK5381 requires no external components because the analog inputs are single-ended. The audio interface has two formats (MSB justified, I2S) and can correspond to many systems like music instrument and AV receiver.FEATURES□ Stereo ∆Σ ADC□ On-Chip Digital Anti-Alias Filtering□ Single-ended Input□ Digital HPF for DC-Offset cancel□ S/(N+D): [email protected] for 48kHz□ DR: [email protected] for 48kHz□ S/N: [email protected] for 48kHz□ Sampling Rate Ranging from 4kHz to 96kHz□ Master Clock: 256fs/384fs/512fs/768fs (∼ 48kHz) 256fs/384fs (∼ 96kHz)□ Audio Interface: Master or Slave Mode selectable□ Input level: TTL/CMOS selectable AK5381 does not support TTL level mode at fs=48kHz to 96kHz.□ Output format: 24bit MSB justified / I2S selectable□ Power Supply: 4.5 ∼ 5.5V (VA) 2.7 ∼ 5.5V (VD at 48kHz) 3.0 ∼ 5.5V (VD at 96kHz) □ Ta = −40 ∼ 85°C (VT), −20 ∼ 85°C (ET) □ Small 16pin TSSOP Package □ AK5380 Pin-compatible
Key Features
- Stereo ∆Σ ADC
- On-Chip Digital Anti-Alias Filtering
- Single-ended Input
- Digital HPF for DC-Offset cancel
- S/(N+D):
- for 48kHz
- DR:
- for 48kHz
- S/N:
- for 48kHz
- Sampling Rate Ranging from 4kHz to 96kHz
- Master Clock:
- 256fs/384fs/512fs/768fs (∼ 48kHz)
- 256fs/384fs (∼ 96kHz)
- Audio Interface: Master or Slave Mode selectable
- Input level: TTL/CMOS selectable
- AK5381 does not support TTL level mode at fs=48kHz to 96kHz.
- Output format: 24bit MSB justified / I2S selectable
- Power Supply: 4.5 ∼ 5.5V (VA)
- 2.7 ∼ 5.5V (VD at 48kHz)
- 3.0 ∼ 5.5V (VD at 96kHz)
- Ta = −40 ∼ 85°C (VT), −20 ∼ 85°C (ET)
- Small 16pin TSSOP Package
- AK5380 Pin-compatible
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | AKM | Product Category ! | ADCs/DACs |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is AK5381?
The AK5381 is a high-performance 24-bit stereo analog-to-digital converter (ADC) developed by AKM Semiconductor. It is designed to offer high-resolution audio conversion for professional audio recording, broadcast, and high-fidelity consumer audio applications.
How Does AK5381 Work?
The AK5381 operates by converting analog audio input signals into 24-bit digital data with high resolution and low distortion. It employs a delta-sigma modulation technique along with sophisticated digital filtering to achieve high-quality audio conversion. The ADC provides a flexible digital output interface and supports various audio formats.
How Many Pins does AK5381 have and What are the Functions of the Pinout Configuration?
The AK5381 is housed in a 28-pin SSOP (Shrink Small Outline Package). The pinout configuration includes:
- AVDD, DVDD: Analog and digital power supply pins, respectively.
- AGND, DGND: Analog and digital ground pins, respectively.
- REFP, REFN: Reference voltage input pins.
- AINL, AINR: Analog input pins for the left and right channels, respectively.
- LRCK, BICK, SDTI, SDTO: Serial audio interface pins.
- MCLK: Master clock input pin.
- FSYNC: Frame sync input pin.
What are the Pros and Cons of AK5381?
Pros:
- High Resolution: Offers 24-bit resolution for detailed and accurate audio conversion.
- Low Distortion: Provides high-quality audio performance with low total harmonic distortion (THD).
- Flexible Interface: Supports various digital audio output formats and master clock frequencies.
- Wide Dynamic Range: Enables capturing a wide range of audio levels with precision.
- Low Power Consumption: Operates with low power, suitable for battery-powered audio devices.
Cons:
- Cost: High-performance audio ADCs like the AK5381 may have a higher cost compared to lower-resolution alternatives.
- External Components: May require external filters or amplifiers for specific audio applications.
- Complex Layout: Requires careful consideration of grounding and layout for optimal audio performance.
Are There Any Equivalents/Alternatives to AK5381 for Recommendation?
- The PCM1804 from Texas Instruments is a similar 24-bit stereo ADC with comparable performance.
- Alternatives to the AK5381 include the CS5361 from Cirrus Logic and the WM8782 from Cirrus Logic.
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