Overview
The AD73311LARS-REEL7, produced by Analog Devices Inc., is a high-performance analog front-end processor designed for general-purpose applications, particularly in the speech and telephony domain. This component features a 16-bit analog-to-digital converter (ADC) and a 16-bit digital-to-analog converter (DAC), each providing a 70 dB signal-to-noise ratio over a voiceband signal bandwidth. The device is suitable for various applications including low bit rate, high-quality compression, speech enhancement, recognition, and synthesis. Its low group delay makes it ideal for single or multichannel active control applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Number of Bits | 16 | ADC and DAC channels | |||
| Number of Channels | 2 | One ADC and one DAC channel | |||
| Signal-to-Noise Ratio (SNR) | 70 dB | Over voiceband signal bandwidth | |||
| Group Delay | 25 µs | At 64 kHz input sample rate, interpolator bypassed | |||
| Power Supply Voltage | 2.7 V | 5.25 V | V | Analog and digital supply voltage | |
| Power Consumption | 50 mW | mW | |||
| Package Type | 20-SSOP | Surface mount, 0.209" (5.30mm) width | |||
| Mounting Type | Surface Mount |
Key Features
- Programmable Gain Amplifier (PGA): The gains of the A/D and D/A conversion channels are programmable over 38 dB and 21 dB ranges respectively.
- On-Chip Reference Voltage: Allows single supply operation.
- Serial Port (SPORT): Enables easy interfacing of single or cascaded devices to industry standard DSP engines.
- Low Group Delay: Suitable for single or multichannel active control applications.
- High SNR: Provides a 70 dB signal-to-noise ratio over voiceband signal bandwidth.
- External Digital Filtering: Final channel bandwidth can be reduced, and signal-to-noise ratio improved, by external digital filtering in a DSP engine.
Applications
- Speech and Telephony: Suitable for various applications in speech and telephony, including low bit rate, high-quality compression, speech enhancement, recognition, and synthesis.
- Active Control Applications: Ideal for single or multichannel active control due to its low group delay characteristic.
- Data Acquisition: Used in precision data acquisition applications requiring high-performance and low power consumption.
Q & A
- What is the AD73311LARS-REEL7 used for?
The AD73311LARS-REEL7 is used for general-purpose applications, particularly in the speech and telephony domain, including low bit rate compression, speech enhancement, recognition, and synthesis.
- What are the key specifications of the AD73311LARS-REEL7?
It features 16-bit ADC and DAC channels, a 70 dB signal-to-noise ratio, programmable gain amplifiers, and operates with a supply voltage of 2.7V to 5.25V.
- What is the package type of the AD73311LARS-REEL7?
The component is packaged in a 20-SSOP (Surface Mount) with a width of 0.209" (5.30mm).
- What is the power consumption of the AD73311LARS-REEL7?
The power consumption is approximately 50 mW.
- Does the AD73311LARS-REEL7 support external digital filtering?
- What is the group delay of the AD73311LARS-REEL7?
The group delay is 25 µs at a 64 kHz input sample rate with the interpolator bypassed.
- Is the AD73311LARS-REEL7 RoHS compliant?
- How many channels does the AD73311LARS-REEL7 have?
- What is the signal-to-noise ratio (SNR) of the AD73311LARS-REEL7?
- Can the AD73311LARS-REEL7 be used in multichannel applications?
