AD73311L: Single-Channel, 3 V Front-End Processor for General Purpose Applications Including Speech and Telephony
The AD73311 and AD73311L are complete front-end processors for general-purpose applications including speech and telephony. They feature a 16-bit A/D conversion channel and a 16-bit D/A conversion channel. Each channel provides 70 dB signal-to-noise ratio over the voiceband signal bandwidth. The AD73311L is a follow-on to the AD73311 with improved on-chip filtering, more sample-rate options and lower cost. The L version operates from 3.0 V only, where as the AD73311 operates from either 3 V or 5 V power supplies.
The gains of the A/D and D/A conversion channels are programmable over 38 dB and 21 dB respectively. An on-chip reference voltage is included to allow single-supply operations. A serial port (SPORT) allows easy interfacing for single or cascaded devices to industry standard DSP engines.
The AD73311 and AD73311L are suitable for a variety of applications in the speech and telephony areas including low-bit rate, high quality compression, speech enhancement, recognition and synthesis. The low group delay characteristic of the part makes it suitable for single or multi-channel active-control applications.
AD73311L 特点
- 16-Bit A/D Converters
- 16-Bit D/A Converters
- Programmable Input/Output Sample Rates
- 75 dB ADC SNR
- 70 db DAC SNR
- 64 ksps Maximum Sample Rate
- -90 db Crosstalk
- Programmable Input/Output Gain
- Low group Delay:
25 us per ADC ch
50 us per DAC ch - Flexible Serial Port Allows Up to 4 Codecs To Be Connected in Cascade Giving 8 I/O Channels
- Single 2.7 V to 5.5 V Supply Operation
- 50 mW Max Power Dissipation at 2.7 V
AD73311L 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD73311LAR | 量产 | 20 ld SOIC - Wide | 20 | 工业 |
| AD73311LAR-REEL | 量产 | 20 ld SOIC - Wide | 20 | 工业 |
| AD73311LAR-REEL7 | 量产 | 20 ld SOIC - Wide | 20 | 工业 |
| AD73311LARS | 量产 | 20 ld SSOP | 20 | 工业 |
| AD73311LARS-REEL | 量产 | 20 ld SSOP | 20 | 工业 |
| AD73311LARS-REEL7 | 量产 | 20 ld SSOP | 20 | 工业 |
| AD73311LARSZ | 量产 | 20 ld SSOP | 20 | 工业 |
| AD73311LARSZ-REEL | 量产 | 20 ld SSOP | 20 | 工业 |
| AD73311LARSZ-REEL7 | 量产 | 20 ld SSOP | 20 | 工业 |
| AD73311LARU | 量产 | 20 ld TSSOP | 20 | 工业 |
| AD73311LARU-REEL | 量产 | 20 ld TSSOP | 20 | 工业 |
| AD73311LARU-REEL7 | 量产 | 20 ld TSSOP | 20 | 工业 |
| AD73311LARUZ | 量产 | 20 ld TSSOP | 20 | 工业 |
| AD73311LARUZ-RL | 量产 | 20 ld TSSOP | 20 | 工业 |
| AD73311LARUZ-RL7 | 量产 | 20 ld TSSOP | 20 | 工业 |
| AD73311LARZ | 量产 | 20 ld SOIC - Wide | 20 | 工业 |
| AD73311LARZ-REEL | 量产 | 20 ld SOIC - Wide | 20 | 工业 |