LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
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3.8.3. GSM features
The following GSM modes and data rates are supported by the MSM6280 device hardware. Support
modes conform to release '99 specifications of the sub-feature.
■
Voice features
❑
FR
❑
EFR
❑
AMR
❑
HR
❑
A5/1, A5/2, and A5/3 ciphering
■
Circuit-switched data features
❑
9.6k
❑
14.4k
❑
Fax
❑
Transparent and non-transparent modes for CS data and fax
❑
No sub-rates are supported.
3.8.4. GPRS features
■
Packet switched data (GPRS)
❑
DTM (Simple Class A) operation
❑
Multi-slot class 12 data services
❑
CS schemes: CS1, CS2, CS3, and CS4
❑
GEA1, GEA2, and GEA3 ciphering
■
Maximum of four Rx timeslots per frame
3.8.5. MSM6280 device audio processing features
■
Integrated wideband stereo CODEC
❑
16-bit DAC with typical 88 dB dynamic range
❑
Supports sampling rates up to 48 kHz on the speaker path and 16 kHz on the microphone path
■
VR- Voice mail + voice memo
■
Acoustic echo cancellation
■
Audio AGC
■
Audio Codecs: AMR-NB, AAC, AAC Plus, Enhanced AAC Plus, Windows Audio v9, Real Audio 8
(G2)
■
Internal vocoder supporting AMR, FR, EFR, and HR
Содержание L704I
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