Siemens A62 Service Repair Documentation

Company Confidential s Com
Copyright 2005© Siemens AG
Page 30 of 53
TD_Repair_L2.5_A70_A75_R1.0.pdf Release 1.0
Speech
• A Speech Coder-Decoder: FR, EFR, AMR Narrow Band, or HR.
• Discontinuous transmission (DTX)
• Voice activity detection (VAD)
• Comfort noise generation (CNG).
Voiceband
• Generation of tones and side-tones
• Ringer tone generation
• Echo Cancellation (handsfree) with noise reduction
Also the functionality and the internal and external interfaces of the Audio Scheduler is
implemented in DSP firmware of E-GOLDlite.
Real Time Clock (integrated in the E-GOLDlite):
The real time clock (degree of accuracy 150ppm) is powered via a seperate voltage regulator
inside the PMU. Via a capacitor, data is kept in the internal RAM during a battery change for
at least 30 seconds. An alarm function is also integrated with which it is possible to switch the
phone on and off.
7.4 SRAM
Memory for volatile data
Memory Size: A70/A75 - 16 Mbit
Data Bus: 16Bit
7.5 FLASH
Memory Size: A70 - 32 Mbit (4Mbyte) A75 - 64 Mbit (8Mbyte)
Data Bus: 16 Bit
7.6 SIM
SIM cards with supply voltages of 1.8V and 3V are supported.
7.7 Vibration Motor
The vibration motor is mounted in the lower case. The electrical connection to the PCB is
realised with pressure contacts.

Siemens A62 Specifications

General

Network	GSM 900 / 1800
Status	Discontinued
SIM	Mini-SIM
Type	Monochrome graphic
Alert types	Vibration; Downloadable polyphonic ringtones
Loudspeaker	No
3.5mm jack	No
Phonebook	500 entries
Call records	10 dialed, 10 received, 10 missed calls
Card slot	No
Internal	1.5 MB
EDGE	No
WLAN	No
Bluetooth	No
USB	No
Browser	WAP 2.0
Radio	No
Games	Yes
Java	Yes
Predictive text input	Yes
Organizer	Yes
Stand-by	Up to 300 h
Talk time	Up to 5 h
Weight	85 g
Ringtones	Polyphonic
GPRS	Class 8
Messaging	SMS, MMS
Battery	Li-Ion