Overview
The AD1981AJST-REEL is an audio codec produced by Analog Devices Inc., designed to serve various audio applications. This component belongs to the Interface > CODECs category and is part of the SoundMAX® series. It is a 16/20-bit serial audio codec, known for its high performance and versatility in handling audio signals.
The AD1981AJST-REEL is packaged in a 48-pin LQFP (7x7) surface mount package, making it suitable for a wide range of electronic systems. Despite being marked as obsolete, it remains a significant component in legacy and specific application contexts.
Key Specifications
| Parameter | Value |
|---|---|
| Product Status | Obsolete |
| Type | Audio Codec '97 |
| Data Interface | Serial |
| Resolution (Bits) | 16, 20 b |
| Number of ADCs / DACs | 4 / 2 |
| Sigma Delta | No |
| Dynamic Range, ADCs / DACs (dB) Typ | 85 / 90 |
| Voltage - Supply, Analog | 4.65V ~ 5.25V |
| Voltage - Supply, Digital | 3.15V ~ 3.45V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-LQFP (7x7) |
Key Features
- 16/20-bit serial audio codec with 4 ADCs and 2 DACs
- Supports resolutions up to 16/20 bits
- Low power consumption: 10mA (typical)
- Operating temperature range: 0°C ~ 70°C
- Includes microphone preamplifiers and line inputs
- AC-Link serial interface for data transfer
- ESD protection circuitry to prevent damage from electrostatic discharges
Applications
- Telecommunications systems
- Data acquisition and storage applications
- Audio processing systems for various industries
- Legacy systems requiring AC '97 compatibility
Q & A
- Q: What is the AD1981AJST-REEL used for?
A: The AD1981AJST-REEL is used as an audio codec in various audio applications, including telecommunications systems, data acquisition, and audio processing systems.
- Q: What is the resolution of the AD1981AJST-REEL?
A: The AD1981AJST-REEL supports resolutions up to 16/20 bits.
- Q: How many ADCs and DACs does the AD1981AJST-REEL have?
A: The AD1981AJST-REEL has 4 ADCs and 2 DACs.
- Q: What is the typical power consumption of the AD1981AJST-REEL?
A: The typical power consumption is 10mA.
- Q: What is the operating temperature range of the AD1981AJST-REEL?
A: The operating temperature range is 0°C ~ 70°C.
- Q: Is the AD1981AJST-REEL RoHS compliant?
A: No, the AD1981AJST-REEL is not RoHS compliant.
- Q: What type of package does the AD1981AJST-REEL come in?
A: The AD1981AJST-REEL comes in a 48-pin LQFP (7x7) surface mount package.
- Q: Does the AD1981AJST-REEL have ESD protection?
A: Yes, the AD1981AJST-REEL features proprietary ESD protection circuitry.
- Q: What is the status of the AD1981AJST-REEL?
A: The AD1981AJST-REEL is marked as obsolete.
- Q: Where can I find the datasheet for the AD1981AJST-REEL?
A: The datasheet for the AD1981AJST-REEL can be found on the official Analog Devices website or through distributors like LoveChip and Heisener.
