Overview
The AD1858JRS is a stereo digital-to-analog converter (DAC) produced by Analog Devices Inc. It is part of the AD1857/AD1858 family, which are complete single-chip stereo digital audio playback components. These DACs operate from a single +5 V power supply and are housed in 20-pin SSOP packages, suitable for operation over a temperature range of 0°C to +70°C. The AD1858JRS is designed for high-performance audio applications, offering advanced features such as digital interpolation filters, multibit sigma-delta modulation, and discrete time and continuous time analog reconstruction filters.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16 Bits | |
| Dynamic Range (20 Hz to 20 kHz, –60 dB Input) | 91 dB (No A-Weight Filter), 94 dB (With A-Weight Filter) | dB |
| THD+N | –90 dB | dB |
| Power Supply | +5 V | V |
| Operating Temperature | 0°C to +70°C | °C |
| Package Type | 20-pin SSOP | |
| Input Data Format | 16-bit right-justified, DSP serial port compatible | |
| Sample Rate Support | Continuously variable | |
| Output Load Drive | 2 kΩ | Ω |
| Load Capacitance | 100 pF | pF |
| Load Impedance | 47 kΩ | Ω |
Key Features
- Low cost, high performance stereo DACs
- 128 times oversampling interpolation filter
- Multibit sigma-delta modulator with triangular PDF dither
- Discrete time and continuous time analog reconstruction filters
- Extremely low out-of-band energy
- Buffered outputs with 2 kΩ output load drive
- Digital de-emphasis and mute
- Power-down mode to minimize power consumption
- Continuously variable sample rate support
- Maximum phase linearity deviation of ±0.1°C
Applications
The AD1858JRS is suitable for various high-performance audio applications, including:
- Digital audio playback systems
- Consumer audio equipment (e.g., CD players, DVD players)
- Professional audio equipment (e.g., mixing consoles, audio interfaces)
- Automotive audio systems
- Home theater systems
Q & A
- What is the resolution of the AD1858JRS DAC?
The AD1858JRS has a resolution of 16 bits.
- What is the dynamic range of the AD1858JRS?
The dynamic range is 91 dB without an A-weight filter and 94 dB with an A-weight filter.
- What is the power supply requirement for the AD1858JRS?
The AD1858JRS operates from a single +5 V power supply.
- What are the supported input data formats for the AD1858JRS?
The AD1858JRS supports 16-bit right-justified and DSP serial port compatible modes.
- Does the AD1858JRS have a power-down mode?
- What is the operating temperature range of the AD1858JRS?
- What type of package does the AD1858JRS come in?
- What is the output load drive capability of the AD1858JRS?
- Does the AD1858JRS support continuously variable sample rates?
- What is the maximum phase linearity deviation of the AD1858JRS?
