Customer Care Solutions Technical Documentation 7 - System Module and User Interface ISSUE 2 01/2004 COMPANY CONFIDENTIAL Copyright © 2003 Nokia. All Rights Reserved.
NHL-10 CCS Technical Documentation System Module and User Interface This page has been delibrately left blank 2 COMPANY CONFIDENTIAL Copyright © 2003 Nokia. All Rights Reserved.
NHL-10 System Module and User Interface CCS Technical Documentation Table of Contents Page No List of Abbreviations ............................................................................................................................................ 5 Introduction ........................................................................................................................................................... 7 System Module Block Diagram ...................................................
NHL-10 CCS Technical Documentation System Module and User Interface This page has been delibrately left blank 4 COMPANY CONFIDENTIAL Copyright © 2003 Nokia. All Rights Reserved.
NHL-10 System Module and User Interface CCS Technical Documentation List of Abbreviations ASIC Application Specific Integrated Circuit BB Baseband BLUETOOTH, BT Bluetooth BSI Battery Size Indicator CBus Control Bus connecting UPP_WD2 with UEM CCP Compact Camera Port CPU Central Processing Unit DBUS Data Bus DSP Digital Signal Processor EGSM Extended – GSM GPRS General Packet Radio Service GSM Group Special Mobile/Global system mobile HF Hands free HFCM Handsfree Common HS Handse
NHL-10 CCS Technical Documentation 6 System Module and User Interface PWB Printed Wiring Board RF Radio Frequency RFBUS Control Bus For RF SDRAM Synchronous Dynamic Random Access Memory SIM Subscriber Identity Module UI User Interface UEMK Universal Energy Management (shrink version) VCXO Voltage Controlled Crystal Oscillator VGA Video Graphics Array COMPANY CONFIDENTIAL Copyright © 2003 Nokia. All Rights Reserved.
NHL-10 System Module and User Interface CCS Technical Documentation Introduction The system module NHL-10 consists of the Radio Frequency (RF) and Baseband (BB), including the User Interface (UI) with Keyboard. System Module Block Diagram The NH4 System module is the engine board of the NHL-10 phone. It includes the baseband and RF functions of the phone, as well as Bluetooth and camera modules. (See Figure 1.) External interfaces are drawn as arrows crossing the NH4 border.
NHL-10 CCS Technical Documentation System Module and User Interface BB Description The BB Core is based on UPP_WD2 CPU, which is a PDA version of the DCT4 UPP ASIC. UPP_WD2 takes care of all the signal processing and operation controlling tasks of the phone, as well as all PDA tasks. For power management, there is one main ASIC for controlling charging and supplying power UEMK plus some discrete power supplies. The main reset for the system is generated by the UEMK.
NHL-10 System Module and User Interface CCS Technical Documentation • The RESET mode is a synonym for the start-up sequence and contains in fact several modes. In this mode regulators and oscillators are enabled and after they have stabilized, the system reset is released and the PWR_ON mode entered. • In the PWR_ON mode the SW is running and controlling the system. • The SLEEP mode is entered from the PWR_ON mode when the system’s activity is low (SLEEPX controlled by SW).
NHL-10 CCS Technical Documentation System Module and User Interface Figure 2: NHL-10 Clocking RFClk 26 MHz VCTCXO UEM UPP_WD2 SleepClk 32 MHz CBusClk 1 MHZ DBusClk 13 MHz SIMClk 3.25 MHz RFBusClk 13 MHz RF-ASIC Mjoelner SIM LPRFClk analog 26 MHZ ZOCUS 13 MHz MMC FlashClk Max 40 MHz BT module Flash memories SDRAM Max 104 MHz SDRAM Diff CCPClk 104 MHz CAMERA In the SLEEP mode the VCXO is off. The UEMK generates a low frequency clock signal (32.
NHL-10 System Module and User Interface CCS Technical Documentation deliver. This results in battery voltage dropping during start-up. When a battery with voltage level just above the hardware cutoff limit is inserted, the system may not start due to excessive voltage dipping. Dropping below 2.8 V for longer than 5 us forces the system to the PWR_OFF state. Powering off Controlled powering off is done when the user requests it by pressing the power-key or when the battery voltage falls too low.
NHL-10 CCS Technical Documentation System Module and User Interface Battery The NHL-10 battery is a detachable, semi-fixed Lithium-Ion BL-5C battery. The nominal voltage is thus 3.7 V (max charging voltage 4.2 V). The interface consists of three pins: VBAT, GND and BSI. The pull-down resistor inside the batteries (BSI signal) recognizes the battery types. Voltage level at the BSI line is measured using the UEMK's AD-converter.
NHL-10 System Module and User Interface CCS Technical Documentation ZOCUS The ZOCUS device is a current sensor used for the battery bar display and for determining whether the phone is in a high current consuming mode. The ZOCUS device measures the voltage drop across a sense resistor in the battery voltage line. This sense resistor is formed from a PWB track and is on an internal layer of the PWB.
NHL-10 CCS Technical Documentation System Module and User Interface mand, and runs at 8.66 MHz. The Lester device also incorporates a 2.85V regulator to power the MMC card. NHL-10 Audio Concept The NHL-10 Audio includes earpiece, microphone, and headset connector and Integrated Handsfree (IHF). Audio is based on ASIC's UPP_WD2, UEMK and a discrete amplifier for the handsfree speaker known as the boomer.
NHL-10 System Module and User Interface CCS Technical Documentation ferential signals from the UEMK (EARP & EARN). It makes contact with the PWB via spring contacts. Microphone The microphone capsule for NHL-10 is a WM_EZZ CY327 capsule. Its sensitivity is -42db Nominal. Contacts are done by springs. Two inputs are used from the UEMK, one for normal internal microphone and a second for the headset. The third microphone input is not used, so it is connected to the ground via capacitors.
NHL-10 CCS Technical Documentation System Module and User Interface The Handsfree (HF) driver in the UEMK is meant for the headset. In the NHL-10 case the output is driven in a fully differential mode. In the fully differential mode, the HF pin is the negative output and HFCM pin is the positive output. The gain of the Handsfree driver in the differential mode is 6 dB. The earpiece (EARP, EARN) and headset (HF, HFCM) signals are multiplexed so that the outputs cannot be used simultaneously.
NHL-10 System Module and User Interface CCS Technical Documentation Testing interfaces Table 2: Testing Interface Electrical Specifications Pin Name Dir 1 MBUS <-> 2 3 FBusTx FBusRx 4 VPP 5 GND -> <- Parameter Min Typ Max Unit Notes Vol 0 0.2 0.3*VFlash1 V Vil (From Prommer) 0 0.2 0.3*VFlash1 V Voh 0.7*VFlash1 2.7 0.7*VFlash1 V Vih(From Prommer) 0.7*VFlash1 2.7 VFlash1 V Vol 0 2.7 0.3*VFlash1 V Voh 0.7*VFlash1 2.7 VFlash1 V Vil (From Prommer) 0 2.7 0.
NHL-10 CCS Technical Documentation System Module and User Interface Extreme Voltages Lithium-Ion battery BL-5C (1 cell): • Nominal voltage is 3.7V. • Lower extreme voltage is 2.8V (cut off voltage). • Higher extreme voltage is 4.2V (charging high limit voltage). Temperature Conditions Specifications are met within the range of –10oC to +55oC ambient temperature. Reduced operation between [-30] and [+60]. Storage temperature range is of –40oC to +85oC.
