Transceiver Rh-9 - Baseband Module; Hardware Characteristics In Brief - Nokia RH-9 Series Ccs Technical Documentation

RH-9
System Module & UI

Transceiver RH-9 - Baseband Module

This section specifies the baseband module for the RH-9 transceiver. The transceiver
board is named ey1a, and all board references used refer to the board version ey1a_03.
The baseband module includes the baseband engine chipset, the UI components and the
acoustical parts for the transceiver.
RH-9 is a hand-portable dualband EGSM900/GSM1800 phone, with GPRS (Class-4) for
the high-end Basic/Expression segment, having the DCT4 generation baseband (UEM/
UPP) and RF(MJOELNER) circuitry. The key drivers for this product are colour display,
short time to market, low field failure, low cost and high performance.
RH-9 is to be used in high volume production, which puts a very high focus on second
and third suppliers, and the verification of the different mix of components.
The baseband module is developed, as part of the DCT4 common Baseband. It is based
very much upon the NPE-4 and NHM-7 products, main difference being colour display,
white leds, external SRAM and SW/Feature upgrade.
The mechanical construction is based on the NHM-5 phone, with an A/B cover update
for an APAC region.
The baseband engine consists basically of two major ASICs. The UEM is the universal
energy management IC, having audio, charge control and voltage regulators included,
and the UPP having DSP, MCU and SRAM memory included. These two ASICs are tested
and delivered bu the Gemini AD project.
RH-9 will use a high resolution (98*67, 4096 colours, 485M042) display from Philips,
Seiko Epson and Samsung.

Hardware characteristics in brief

• High resolution (98*67) , 12 -bit colour display
• 4 TBSF White LEDs
• Charge pump IC with constant current generator for driving the white LEDs
• 4Mbit external SRAM)
• No shielding can above the memory ICs
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CCS Technical Documentation
Issue 1 11/02