Overview
The AD1871YRSZ-REEL is a stereo audio analog-to-digital converter (ADC) produced by Analog Devices Inc. It is designed for high-performance digital audio applications, featuring two 24-bit conversion channels. Each channel includes a programmable gain amplifier (PGA), a multibit sigma-delta modulator, and decimation filters. The AD1871 provides 105 dB of dynamic range, making it suitable for applications such as professional audio mixing consoles, musical instruments, and digital audio recorders.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| Sample Rate | Up to 96 kHz |
| Dynamic Range | 105 dB (typical) |
| PGA Gain Range | 0 dB to 12 dB in steps of 3 dB |
| Input Configuration | Differential or single-ended |
| Power Supply | 5 V (analog), 3.3 V (digital interface optional) |
| Operating Temperature | -40°C to +105°C |
| Package Type | 28-lead SSOP |
| Data Interface | SPI, I2S, left-justified, right-justified |
Key Features
- Supports 16-/20-/24-bit word lengths
- Multibit sigma-delta modulators with “Perfect Differential Linearity Restoration” for reduced idle tones and noise floor
- Cascadable up to four devices from a single DSP SPORT device
- Flexible serial data port with support for various interface modes
- On-chip reference and clock divider
- Control via SPI compatible serial port or optional control pins
Applications
- Professional audio mixing consoles
- Musical instruments
- Digital audio recorders (CD-R, MD, DVD-R, DAT, HDD)
- Home theater systems
- Automotive audio systems
- Multimedia systems
Q & A
- What is the resolution of the AD1871YRSZ-REEL? The resolution is 24 bits.
- What are the supported sample rates? The AD1871 supports sample rates up to 96 kHz.
- What is the dynamic range of the AD1871YRSZ-REEL? The dynamic range is 105 dB (typical).
- Can the input be configured as differential or single-ended? Yes, the input can be configured as either differential or single-ended.
- What is the power supply requirement for the AD1871YRSZ-REEL? It operates from a single 5 V power supply with an optional 3.3 V digital interface.
- What is the operating temperature range of the AD1871YRSZ-REEL? The operating temperature range is -40°C to +105°C.
- What type of package does the AD1871YRSZ-REEL come in? It comes in a 28-lead SSOP package.
- What data interfaces are supported by the AD1871YRSZ-REEL? It supports SPI, I2S, left-justified, and right-justified interfaces.
- Can the AD1871YRSZ-REEL be cascaded with other devices? Yes, it can be cascaded up to four devices from a single DSP SPORT device.
- How is the device controlled? The device can be controlled via an SPI compatible serial port or optional control pins.
