Introduction; Phone Description - Nokia RM-497 Service Manual

RM-497
System Module

Introduction

Phone description

RM-586 is a candybar-type phone supporting EGSM850/900/1800/1900.
Display and Keypad Features
• Single LCD
• Primary: [tbd]" [tbd]x[tbd] pixel, 16M true color display
• [tbd] keys
Hardware Features
• 2M pixel camera
• Micro USB 2.0 port for data transfer and charging
• 3.5mm AV connector
• Bluetooth
• Radio, FM Stereo
• Internal vibrator and antenna
• [tbd]-MB of user memory
• Hot swap micro SD card slot
• Stereo FM radio and Music Player (MP3, MP4, eAAC, WMA)
• Video (H.263, H264, MPEG4-SP) playback and recording
• Midi polyphonic ringer
• RTC and alarm features
RF Features
• GSM/EGSM – 850/900/1800/1900
• GPRS Class 32
Baseband Function Description
The D2800 "Juno" is a single-chip EDGE/GPRS/GSM multimedia baseband processor with quad-bands support
for worldwide GSM coverage and roaming ability. The D2800 "Juno" has a fully integrated RF transceiver
along with all analog and digital baseband functions onto a single, monolithic piece of silicon.
The integrated RF in the D2800 "Juno" can supports GSM/EDGE/GPRS Class 33; however, the phone product
implement Class 32. Juno has a proprietary high-performance modem technology to increase network
capacity. It also has SAIC support for voice, data, echo cancelling, and noise suppression to improve cellular
handset reception and voice quality.
The D2800 "Juno" has an integrated ARM9 processor operating at 208 MHz for fast applications computing.
The ARM9 processor can access the 1-Gbit of non-volatile Flash memory and 512-Mbit of DDR SDRAM over
independent memory interfaces. The 16-bit Flash memory interface operates at 78 MHz and the 16-bit SDRAM
interface operates at 156 MHz.
The D2800 "Juno" has extensive integrated multimedia functionality for camera, LCD, and audio.
• Serial SMIA camera interface with integrated Image Signal Processor (ISP).
• Dual MIPI LCD panels (DBI-B/Messi and DBI-C/Lossi) with up to 16M colors.
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