General Description
The DA14AVDDECT from Dialog Semiconductor is a member of the wireless module family that
operates in the interference-free DECT frequency band (1.9 GHz) and can be used in hosted or
embedded Audio, Voice, and Data applications. The module includes all the required radio
components, antenna, a low-power audio CODEC (DA7218), and a 32 Mb FLASH memory. The
module is intended for users who are familiar with application-level software programming but does
not require detailed understanding of the DECT protocol to facilitate rapid design-in cycles. The
module can be operated as a stand-alone device or from a host through an API interface.
The module is based on Dialog's DA14495 chip that supports DQPSK and D8PSK besides the
traditional GFSK. This increases the raw air data rate by up to three times.
The module is available with 1.5 mm pitch BGA solder balls for an excellent solderability and a
sufficient connectivity. The dimensions for the module are 17.0 mm × 26.65 mm.
This document describes the hardware of the DA14AVDDECT module. A separate document details
the software and APIs.


Key Features
■ All RF components are integrated, thus no
customer tuning is required
■ Supported bands include EU-DECT, DECT
6.0 for North America, and Japan DECT
(JDECT)
■ On-PCB antenna, the module also supports
an optional second external antenna
■ Integrated RF shield
■ Low power operations
■ Audio bandwidth from 20 Hz to 20 kHz
■ 32-Mbit FLASH, so program memory available
for custom software
■ Integrated audio ADC/DAC (external audio
ADC/DAC supported through GPIO mapping)
■ Limited modular approval for EN301-406 (EUDECT), FCC Part 15 (DECT 6.0), and TELEC
(J-DECT)
■ Supports NiMH, alkaline, and Li-Ion batteries
■ A Voice Data Stack or an Audio Data Stack
are available to be downloaded