User's Manual

UM-D-010
DA14AVDDECT System Overview
NDA Confidential
User Manual
Revision 1.2
20-Aug-2020
CFR0012
11 of 18
© 2020 Dialog Semiconductor
Figure 6: Voice Conferencing System
7.4 Data Applications
When the end application requires data transfers at higher data rate, the Voice Data stack allows the
user to establish 150 Kbit/s LDS data connections.
7.5 Summary
Figure 7 shows a summary of the default settings for each system.
Figure 7: Default Settings
S-field A-field B+Z-field
Audio + UNITDATA
(Broadcast channel)
CELT 48 kHz
128kbps Mono
Mode = 0x82
20 kHz / 1.6 kbit/s 1024 π/2-DBPSK π/2-DBPSK π/2-DBPSK
2 x Long Slot
(Double Simplex)
Asym broadcast LS640
Unprotected B-field
Voice + IWU data
(Question call)
G.722
Mode = 0x86
5.6 kHz / 1.6 kbit/s
1
(out of 1024)
π/2-DBPSK π/2-DBPSK π/2-DBPSK
Long Slot
(Duplex)
LS640
Unprotected B-field
Service connection + IWU data
(Keep-alive connection)
- 1.6 kbit/s
1
(out of 1024)
π/2-DBPSK π/2-DBPSK π/2-DBPSK
Long Slot
(Duplex)
Long Slot
Public Address
Audio + IWU data
CELT 32 kHz
64 kbps Mono
Mode = 0x85
16 kHz / 1.6 kbit/s 4 π/2-DBPSK π/2-DBPSK π/4-DQPSK
2 x Full Slot
(Double Simplex)
+ 1 x Duplex
Asym connection
Full Slot
Voice + IWU data
BV32
Mode = 0x81
7.3 kHz / 1.6 kbit/s 8 π/2-DBPSK π/2-DBPSK π/4-DQPSK
Full Slot
(Duplex)
Full Slot
LDS data - 150 kbit/s 2 π/2-DBPSK π/2-DBPSK π/8-D8PSK 2 x Double Slots
Double Slot
Protected B-field
FWU (any stack) LU10 - 150 kbit/s Up to 1024 π/2-DBPSK π/2-DBPSK π/8-D8PSK 2 x Double Slots
Double Slot
Protected B-field
<- Hard coded in stack, user can't change it
<- Controlled by user via API (e.g. Cola application)
<- Automatically changes according to modulation settings selected by user (but user can't change this field separately)
Slot Size
Slot Structure
Tour Guide
Conferencing
# of PPs
Audio BW / Data Rate
Application
Connection
CODEC
Default modulation scheme
FP
…Max. 8 PPs + FP
8 kHz or 16 kHz Sampling rate
4 kHz or 8 kHz Analog BW (NB or WB call)
Analog or
PCM interface
Analog or I2S
PP
PP
PP
PP
PP
PP
PP
PP