Specifications

Product Technical Specification & Customer Design Guidelines
60 Proprietary and Confidential - Specifications subject to change 2400058
Again, note that using a single-ended connection includes losing power (-6dB) as
compared to a differential connection.
In the case of a 32  speaker, a cheaper and smaller solution can be
implemented where R1 = 82  and C2 = 6.8µF (ceramic).
Also note that the connection between the speaker and the AirPrime SL808X
Embedded Module pins must be designed to keep the serial impedance lower
than 1.5  when it is connected in single-ended mode.
4.10.3.5 Recommended characteristics
• Type: 10 mW, electro-magnetic
• Impedance: 8  for hands-free
• Sensitivity: 110dB SPL minimum (0dB = 20 µPa)
• Frequency response must be compatible with GSM specifications
4.10.4 Supported voice features
The AirPrime SL808X Embedded Module modem supports the voice-related
features listed in Ta bl e 4- 2 8 , and Ta bl e 4-2 9 details its support for supplementary
services.
Table 4-28: Supported voice features
Item Comments
USSD (Unstructured
Supplementary Services Data)
This is a GSM-specific capability that supports transmitting
information over GSM network signalling channels.
Voice encryption Both A5/1 and A5/2 voice encryption are supported.
SIM Application Tool Kit with
proactive SIM commands
(compliant to R96)
3GPP TS 11.14
SIM Application Toolkit commands are stored on the SIM. These
commands enable the SIM card to proactively drive the GSM
host device and support interactions between the network and
the end user.
User-configurable audio
prompts
Several audio features, such as ‘Incoming Call’ and ‘New SMS
message’, can be configured in Watcher.
Multi-party calling Up to 5 remote parties are supported on a single call, plus an
additional party on hold (on a separate call).
Table 4-29: Supported supplementary services
Supported by
Service Watcher /
CnS
GSM service
code
AT
command
Calling Line Identification Presentation
(Caller ID)
Yes Yes Yes
Calling LIne Identification Restriction (hides
your ID on outgoing calls)
Yes Yes Yes