User's Manual

SC14CVMDECT SF Cordless Voice Module
© 2012 Dialog Semiconductor B.V. 8 July 1, 2014 v1.6
2.0 Introduction
2.1 SCOPE
The SC14CVMDECT SF is a programmable DECT
module for voice and data services. The internal soft-
ware stack receives commands and data from the
application, for instance to set up a link to other mod-
ules. The application software can be implemented on
the module itself or on an external host processor. The
internal FLASH provides user space where custom
applications can be located.
The module converts analog signals to a digital stream,
compresses/decompresses them according to the
DECT standards and transmits/receives them over the
air interface. The DECT protocol stack in each module
supports both PP and FP functionality.
The embedded software running on the internal micro-
controller (CR16) supports all protocol layers up to the
network layer. The module can be controlled by soft-
ware running on the internal controller as well as from
an external controller via the UART.
2.2 REFERENCES
1. CVM FP API Documentation package
2. CVM PP API Documentation package
3. Athena Eclipse User Manual, v1.02, Dialog
Semiconductor, Cordless Software + Tools
4. SC14CVMDECT EEPROM (VES) MAP
5. AN-D-174, SC14480 Battery Management;
using the State of Charge function, Dialog Sem-
iconductor, Application Note
6. AN-D-204, RF settings in Natalie, Dialog Semi-
conductor, Application note
7. AN-D-211, SC14CVMDECT External antenna
design guidelines, Dialog Semiconductor, Appli-
cation note
2.3 GLOSSARY AND DEFINITIONS
AFE Analog Front End
API Application Programming Interface
software between the MCU and
SC14CVMDECT SF
Baby monitor Same as intercom but optionally voice
activated
CAT-iq Cordless Advanced Technology, Internet
and Quality
Codec Coder and Decoder converts analog
signals to digital signals and vice versa.
Conference Same as intercom, but including an
external party.
CRC Cyclic Redundancy Check
CVM Cordless Voice Module
DECT Digital Enhanced Cordless Telephone
DSP Digital Signal Processor
EMC Equipment Manufacturer’s Code
ESD ElectroStatic Discharge
FAD Fast Antenna Diversity
FP Fixed Part
GAP General Access Profile (DECT)
GFSK Gaussian Frequency Shift Keying
Inband tones Tones played by the application itself
and not from external e.g. line.
Intercom Internal call between FP and one or
more PPs
IPEI International Portable Equipment Identity
(please refer to ETSI EN 300 175-6)
IWU InterWorking Unit (please refer to ETSI
EN 300 175-1)
LCD Liquid Crystal Display
LDO Low Drop Out (regulator)
LDR Low Data Rate
MCU Micro Controller Unit
MMI Man Machine Interface (keypad, LCD,
buzzer, microphone, earpiece, speaker,
headset)
NSMD Non Solder Mask Defined (pad)
NTP Normal Transmitted Power
PAEC Perceptual Acoustic Echo Canceller
PC Personal Computer, IBM compatible
PCB Printed Circuit Board without
components
PP Portable Part
PSTN Public Switched Telephone Network
POTS Plain Old Telephone System
RF Radio Frequency
RFPI Radio Fixed Part Identity (please refer to
ETSI EN 300 175-6)
RLR Receive Loudness Rating
RSSI Radio Signal Strength Indication (please
refer to ETSI EN 300 175-1)
Sidetone Feedback of microphone signal to
earpiece.
SLR Sending Loudness Rating
SPI Serial Peripheral Interface Bus
UART Universal Asynchronous Receiver and
Transmitter
ULE Ultra Low Energy
VAD Voice Activity Detection