Overview
The AD73311ARZ, produced by Analog Devices Inc., is a complete front-end processor designed for general-purpose applications, including 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 provides a high signal-to-noise ratio (SNR) of 70 dB over the voiceband signal bandwidth. The AD73311ARZ operates from a single 2.7 V to 5.5 V supply and is available in 20-lead SOIC and SSOP packages.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Number of Bits | 16 | - | - | ||
| Voltage - Supply, Analog | 2.7 | - | 5.5 | V | - |
| Voltage - Supply, Digital | 2.7 | - | 5.5 | V | - |
| ADC SNR | - | - | 75 dB | - | Over voiceband signal bandwidth |
| DAC SNR | - | - | 70 dB | - | Over voiceband signal bandwidth |
| Maximum Sample Rate | - | - | 64 ksps | - | - |
| Crosstalk | - | - | -90 dB | - | - |
| Group Delay (ADC) | - | 25 µs | - | - | Per ADC channel |
| Group Delay (DAC) | - | 50 µs | - | - | Per DAC channel |
| Programmable Input/Output Gain (ADC) | - | - | 38 dB | - | - |
| Programmable Input/Output Gain (DAC) | - | - | 21 dB | - | - |
| Power Dissipation | - | - | 50 mW | - | At 2.7 V |
| Package Type | 20-Lead SOIC/SSOP | - | - | ||
Key Features
- 16-bit A/D and D/A conversion channels with high SNR (70 dB) over voiceband signal bandwidth.
- Programmable input/output sample rates and gains.
- Low group delay: 25 µs per ADC channel and 50 µs per DAC channel.
- Single 2.7 V to 5.5 V supply operation.
- On-chip reference voltage for single-supply operations.
- Flexible serial port (SPORT) allowing easy interfacing with industry standard DSP engines and cascading up to 4 codecs for 8 I/O channels.
- Low power dissipation: 50 mW maximum at 2.7 V.
Applications
- General Purpose Analog I/O
- Speech Processing
- Cordless and Personal Communications
- Telephony
- Active Control of Sound & Vibration
- Data Communications
Q & A
- What is the AD73311ARZ used for? The AD73311ARZ is used for general-purpose applications including speech and telephony, such as speech processing, cordless and personal communications, and active control of sound and vibration.
- What are the key conversion specifications of the AD73311ARZ? The device features 16-bit A/D and D/A conversion channels with a signal-to-noise ratio (SNR) of 70 dB over the voiceband signal bandwidth.
- What is the operating voltage range of the AD73311ARZ? The AD73311ARZ operates from a single 2.7 V to 5.5 V supply.
- What are the package options for the AD73311ARZ? The device is available in 20-lead SOIC and SSOP packages.
- What is the maximum sample rate of the AD73311ARZ? The maximum sample rate is 64 ksps.
- Does the AD73311ARZ have programmable gain? Yes, the gains of the A/D and D/A conversion channels are programmable over 38 dB and 21 dB ranges respectively.
- How does the AD73311ARZ interface with other devices? The device features a flexible serial port (SPORT) that allows easy interfacing with industry standard DSP engines and cascading up to 4 codecs for 8 I/O channels.
- What is the power dissipation of the AD73311ARZ? The maximum power dissipation is 50 mW at 2.7 V.
- What are the key applications of the AD73311ARZ? Key applications include speech processing, telephony, cordless and personal communications, active control of sound and vibration, and data communications.
- Does the AD73311ARZ have on-chip filtering? The AD73311L version has improved on-chip filtering compared to the AD73311, but the AD73311 itself relies on external digital filtering in a DSP engine to enhance signal quality.
