User's Manual

Interface Description EMIII-DUAL Reference Manual Application Information
EMIII-DUAL V1.0 AnyDATA.NET Proprietary – Use Subject to Restrictions
2. Overview
2.1 Application Descriptions
The CDMA Wireless Data Modem is a complex consumer communications instrument that relies
heavily on both digital signal and embedded processor technologies. The Wireless Data Modem
manufactured by AnyDATA.NET supports Code-Division-Multiple-Access(CDMA). This operates in
PCS spectrum.
In a continuing effort to simplify the design and to reduce the production cost of the Wireless Data
Modem, AnyDATA.NET has successfully developed the EMIII-DUAL. The EMIII-DUAL is
AnyDATA.NET’s latest compact Wireless Data Modem operating in PCS spectrum, also contains
complete digital modulation and demodulation system for CDMA standards as specified in IS-95 A/B and
IS-2000.
The subsystem within the EMIII-DUAL includes a CDMA processor (MSM5100), an integrated
CODEC with an ear piece and microphone amplifiers, and an RS-232 serial interface supporting forward
link data communications of a rate of 153.6kbps.
The EMIII-DUAL provides external interface. External interface includes the standard RS-232,
Digital Audio, and External On/Off control.
The EMIII-DUAL has the capability to power down unused circuits in order to dynamically
minimize power consumption.