ad1849k Datasheet - Analogdevices
The AD1849K is a 16-bit, 48 kHz, stereo audio codec with a sigma-delta analog-to-digital converter (ADC) and a multi-bit delta-sigma digital-to-analog...
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📝 Component Overview
The AD1849K is a 16-bit, 48 kHz, stereo audio codec with a sigma-delta analog-to-digital converter (ADC) and a multi-bit delta-sigma digital-to-analog converter (DAC). It is designed for use in a variety of applications, including multimedia computers, set-top boxes, and other consumer audio equipment. The device features a high-quality, on-chip headphone driver and supports a range of audio interfaces, including AC'97 and I2S.
Key Features and Benefits
- 16-bit, 48 kHz, stereo audio codec
- Sigma-delta ADC and multi-bit delta-sigma DAC
- On-chip headphone driver
- Supports AC'97 and I2S audio interfaces
- Low power consumption
- Small package size
Typical Applications
- Multimedia computers
- Set-top boxes
- Consumer audio equipment
- Professional audio equipment
- Automotive audio systems
- Telecommunications equipment
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Supply Voltage | 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -65°C to +150°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Analog Input Voltage | VDD = 5 V, TA = 25°C | 0 V | 2.5 V | 5 V | V |
| Digital Input Voltage | VDD = 5 V, TA = 25°C | 0 V | 2.5 V | 5 V | V |
Package Information
- 44-Lead LQFP: A 44-lead low-profile quad flat package (LQFP) with a body size of 10 mm x 10 mm and a lead pitch of 0.5 mm
Pin Configuration
- Pin 1: VDD - Positive power supply
- Pin 2: VSS - Ground
🔧 Application Guidelines
Design Considerations
The AD1849K is a highly integrated audio codec that requires careful consideration of the system design to ensure optimal performance. The device should be connected to a suitable power supply, and the analog input and output circuits should be designed to minimize noise and distortion.
Installation Guidelines
The AD1849K is available in a 44-lead LQFP package and should be mounted on a printed circuit board (PCB) with a suitable thermal interface to ensure reliable operation. The device should be handled with care to avoid damage to the leads or package.
Operational Notes
The AD1849K is a complex device that requires careful configuration and control to ensure optimal performance. The device should be programmed using a suitable interface, such as I2C or SPI, and the audio data should be transmitted and received using a suitable protocol, such as AC'97 or I2S.