Analog Devices Inc. AD73311LARUZ-RL

The AD73311LARUZ-RL, produced by Analog Devices Inc., is a comprehensive front-end processor designed for general-purpose applications, particularly in the realms of speech and telephony. This device features a 16-bit analog-to-digital (A/D) conversion channel and a 16-bit digital-to-analog (D/A) conversion channel. Each channel offers a high signal-to-noise ratio (SNR) of 70 dB over the voiceband signal bandwidth, making it suitable for various speech and telephony applications, including low-bit rate compression, speech enhancement, recognition, and synthesis.

The AD73311LARUZ-RL operates on a single 2.7 V to 3.3 V supply and is available in a 20-lead SSOP package. It includes an on-chip reference voltage for single-supply operation and a flexible serial port (SPORT) that allows easy interfacing with industry-standard DSP engines, either in single or cascaded configurations.

• 16-bit A/D and D/A Conversion Channels: High-resolution conversion for accurate signal processing.
• Programmable Gain: 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 for single-supply operation.
• Flexible Serial Port (SPORT): Enables easy interfacing with industry-standard DSP engines, supporting up to 4 codecs in cascade for 8 I/O channels.
• Low Group Delay: Suitable for single or multi-channel active-control applications with a group delay of 25 µs per ADC channel and 50 µs per DAC channel.
• Low Power Consumption: Maximum power dissipation of 50 mW at 2.7 V.
• Compact Packaging: Available in 20-lead SSOP, SOIC, and TSSOP packages.

• General Purpose Analog I/O: Suitable for a wide range of analog input/output applications.
• Speech Processing: Ideal for speech enhancement, recognition, and synthesis.
• Cordless and Personal Communications: Used in wireless communication devices.
• Telephony: Applicable in telephony systems for voice signal processing.
• Active Control of Sound and Vibration: Suitable due to its low group delay characteristics.
• Data Communications: Used in various data communication systems requiring high-quality analog front-end processing).

1. What is the resolution of the A/D and D/A conversion channels in the AD73311LARUZ-RL?

   The AD73311LARUZ-RL features 16-bit A/D and D/A conversion channels.

2. What is the signal-to-noise ratio (SNR) of the ADC and DAC channels?

   The SNR for both ADC and DAC channels is 70 dB over the voiceband signal bandwidth.

3. What is the maximum sample rate supported by the AD73311LARUZ-RL?

   The maximum sample rate is 64 ksps.

4. What is the group delay of the ADC and DAC channels?

   The group delay is 25 µs for the ADC channel and 50 µs for the DAC channel.

5. What is the power supply range for the AD73311LARUZ-RL?

   The device operates on a single 2.7 V to 3.3 V supply.

6. What types of packages are available for the AD73311LARUZ-RL?

   The device is available in 20-lead SSOP, SOIC, and TSSOP packages.

7. Can the AD73311LARUZ-RL be used in cascaded configurations?

   Yes, the flexible serial port (SPORT) allows up to 4 codecs to be connected in cascade, providing up to 8 I/O channels.

8. What are some typical applications of the AD73311LARUZ-RL?

   Typical applications include speech processing, cordless and personal communications, telephony, and active control of sound and vibration.

9. Is the AD73311LARUZ-RL RoHS compliant?

   Yes, the AD73311LARUZ-RL is RoHS compliant.

10. What is the maximum power dissipation of the AD73311LARUZ-RL?

    The maximum power dissipation is 50 mW at 2.7 V.