CML Micro CMX655D Ultra-Low Power Voice Codec
CML Micro CMX655D Ultra-Low Power Voice Codec features an integrated digital microphone interface that connects single or dual MEMS microphones to the device, with parallel processing of each data stream to maintain phase alignment between the two channels. In the reverse channel, digital voice data drives a Class D speaker driver, also featuring programmable filtering and digital gain control. This architecture operates with much higher efficiency than conventional speaker drivers. An additional low-level output is also provided. The CMX655D is available in a small VQFN-24 package, ideal for space-constrained applications.Features
- Digital microphone MEMS support
- High-efficiency Class-D speaker driver
- Low power consumption
- 16-bit audio data
- Supports conventional telephony and HD voice (300Hz to 3.4kHz and 50Hz to 7kHz bandwidths)
- Supports audio bandwidths up to 21kHz
- Supports 8ksps/16ksps/32ksps/48ksps sample rates
- Flexible serial audio interface
- SPI™/TWI control interface
- Small 24-lead VQFN package
- 1.8V to 3.6V supply
- 48kS/s conversion rate
- -40°C to +85°C operating temperature range
Applications
- Security alarm panels
- Glass break detection
- Intercom and access systems
- Mobile radio and accessories
- Wired telephony
- Voice controlled equipment
Block Diagram
公開: 2019-11-19
| 更新済み: 2023-08-04
