Overview
The AD1887JST is an AC'97 SoundMAX® Codec produced by Analog Devices Inc. This integrated circuit is designed to handle audio signal processing and conversion, adhering to the AC'97 standard. It is widely used in various audio applications requiring high-quality analog-to-digital and digital-to-analog conversions. The AD1887JST features a 16-bit resolution for both ADC and DAC, ensuring robust audio fidelity and minimal noise interference.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | - | 16 Bits | - | - |
| Total Harmonic Distortion (THD) | - | -84 dB | - | - |
| Dynamic Range | - | -60 dB | - | - |
| Input Clock Frequency | 24.576 MHz | - | 24.576 MHz | MHz |
| Analog Supply Voltage (AVDD) | 4.75 V | 5.0 V | 5.25 V | V |
| Digital Supply Voltage (DVDD) | 3.15 V | 3.3 V | 3.45 V | V |
| Analog Supply Current (AVDD) | - | 36 mA | - | mA |
| Digital Supply Current (DVDD) | - | 22 mA | - | mA |
| Operating Temperature | 0 °C | - | 70 °C | °C |
| Package Type | - | 48-LQFP | - | - |
Key Features
- High Resolution: 16-bit ADC and DAC resolution for high-quality audio processing.
- Low Distortion: Total Harmonic Distortion (THD) of -84 dB, ensuring minimal distortion in audio signals.
- Wide Dynamic Range: Dynamic range of -60 dB, providing a broad range of audio signal handling.
- Multiple Audio Channels: Supports multiple audio channels, including headphone output and line input.
- Power Management: Features power-down states to reduce power consumption when not in use.
- ESD Protection: Includes proprietary ESD protection circuitry to prevent damage from electrostatic discharges.
- Operating Temperature Range: Operates within a temperature range of 0°C to 70°C.
Applications
- Internet of Things (IoT): Used in smart home and smart agriculture applications for data transmission and control between devices.
- Industrial Automation: Employed in industrial control equipment such as automated production lines and intelligent manufacturing systems for data collection and transmission.
- Multimedia Devices: Utilized in devices like televisions, cameras, video recorders, mobile phones, and computers for audio signal processing.
Q & A
- What is the AD1887JST used for?
The AD1887JST is used for audio signal processing and conversion, adhering to the AC'97 standard.
- What is the resolution of the ADC and DAC in the AD1887JST?
The resolution of both the ADC and DAC is 16 bits.
- What is the typical Total Harmonic Distortion (THD) of the AD1887JST?
The typical THD is -84 dB.
- What is the operating temperature range of the AD1887JST?
The operating temperature range is from 0°C to 70°C.
- What type of package does the AD1887JST come in?
The AD1887JST comes in a 48-LQFP package.
- Does the AD1887JST have ESD protection?
- What are the typical supply currents for the analog and digital supplies?
The typical analog supply current (AVDD) is 36 mA, and the typical digital supply current (DVDD) is 22 mA.
- What are some common applications of the AD1887JST?
It is used in IoT, industrial automation, and multimedia devices.
- What is the recommended input clock frequency for the AD1887JST?
The recommended input clock frequency is 24.576 MHz.
- Does the AD1887JST support power-down states?
