DA14AVDDECT
Whether you’re developing audio-, voice- or data-based wireless applications, the DA14AVDDECT offers you the fastest and easiest route to market. It combines everything you need for world-class wireless performance in a single compact module.
Fully RF tested and certified, it doesn’t require any in-depth RF knowledge or resources to use. Just drop it in and you’re ready to go.
The Dialog DA14AVDDECT Audio Voice Data module is a complete solution for next-generation wireless applications. It contains all the hardware necessary, including a state-of-the-art DECT radio, a multi-core, power amplifier, stereo CODEC, battery management and onboard antenna. You can tailor the module to your target application area simply by downloading and installing one of our optimized software stacks who also supports over-the-air upgrades.
Features
支持s up to 4 microphones (PP) on one receiver (FP)
16kHz audio bandwith high end voice/audio quality
Transmitter (PP) consumes down to 46mA (LPM) when talking
20kHz audio bandwidth for super high-end voice/audio quality
One full duplex return channel with the guide for interactioin
支持s up to 1024 listeners in one group
Receiver (PP) consumes down to 35 mA (LPM) when listening
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公共地址
- Outdoor events
- School classrooms
- Church usage
Tour Guide
- Training and Collaboration
- Language Interpretation
- Event Production/Intercom
- Assistive Listening
- Group Tours
Differences between the Audio Data Stack (AVD Module) and the Wireless Audio Module (WAM)
| Audio Data Stack | WAM | |
|---|---|---|
| Data Rate | 1.6kb/s | 1.6kb/s |
| Number of PP in a conference | N/A | N/A |
| Number of PP in PA/TG | 1024 | 128 |
| Full Duplex / return channels | 1 | 0 |
| Voice/Audio Bandwidth | 20kHz | 11.3kHz |
| Latency | 10ms | 10ms |
| Battery Charging | 镍氢电池/锂离子batteries | 2 Cell NiMH |
| Programmability | Flexible API Interface | None |
Customer testimonials
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2 months ago
SR.设计工程师
Posted byvijay.moghe@flex.com15 points 3 repliesHi,
I was looking at using the DA9021 PMIC Charger IC for one of our current projects. I noticed that it is mentioned that it is not recommended for new designs. I wanted to know why that is the case?
Do you have any other PMIC Charger ICs with integrated Buck Regulator with the following specifications?
Input Voltage : 5V
Buck Output Voltage: 3.3V
Charge Current : Programmable up to 500 mA
Battery Type : Lithium Polymer/ Lithium Ion
Thanks,
Vijay
2 months ago
Hi Ellicot,
The charger needs to have at least one integrated buck switching regulator with a 3.3V output.
If there is more than 1 regulator, that is fine. But we cannot use an LDO for our application.
The single cell charger needs to have a programmable charge current of 500 mA or less.
2 months ago
Hello Vijay,
The DA9070/73 could be an option. You would have to look at using a Vdivider in the buck's feedback loop to increase the voltage about its output voltage operating range. We have tested at 2.625V and the output is stable, we would have to look at 3.3Vout in further and if the increase in power consumption is ok.
2 months ago
Hello Vijay,
Could you confirm some requirements for me.
I take it, you are looking for a single cell charger, with a programmable charge current of 500mA?
Due to the charge current, a linear charger would be acceptable?
The device also needs to have a 1 x 3V3 buck only?
Kind regards,
Elliott