CCS Technical Documentation RH-42 Series Transceivers System Module Issue 2 09/2003 Confidential Nokia Corporation
RH-42 System Module Page 2 CCS Technical Documentation Nokia Corporation Confidential Issue 2 09/2003
RH-42 System Module CCS Technical Documentation Contents Page No Abbreviations ................................................................................................................. 7 Transceiver RH-42 (2220) ............................................................................................. 9 Introduction ..................................................................................................................9 Operational Modes ...............................................
RH-42 System Module CCS Technical Documentation Battery Connector Interface .......................................................................................19 Accessories Interface ................................................................................................... 19 System connector ......................................................................................................... 19 Introduction ................................................................................
RH-42 System Module CCS Technical Documentation Frequency Synthesizers .............................................................................................46 Transmitter .................................................................................................................47 Common IF ............................................................................................................. 47 Cellular Band...............................................................................
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RH-42 System Module CCS Technical Documentation Abbreviations ACCH Analog Control Channel A/D Analog to Digital conversion AMPS Advanced Mobile Phone System ANSI American National Standards Institute ASIC Application Specific Integrated Circuit AVCH Analog Voice Channel BB Base Band CSD Circuit Switched Data CSP Chipped Scale Package. The same as uBGA.
RH-42 System Module CCS Technical Documentation MO/MT Mobile Originated/Mobile Terminated (SMS) OOR Out Of Range (mode) OTA Over The Air (+ service like Programming etc.
RH-42 System Module CCS Technical Documentation Transceiver RH-42 (2220) Introduction The RH-42 is a single band transceiver unit designed for TDMA800 networks. The transceiver consists of the engine module (ST6S_11) and the various assembly parts. The transceiver has a full graphic display and the user interface is based on a Jack style UI with two soft keys. An internal antenna is used in the phone, and there is no connection to an external antenna.
RH-42 System Module CCS Technical Documentation Operational Modes Below is a list of the phone’s different operational modes: 1 Power Off mode 2 Normal Mode (Power controlled by cellular SW, includes various Active and Idle states): • Analog Modes (800 MHz only): •Analog Control Channel, ACCH •Analog Voice Channel, AVCH • Digital Mode (800 MHz): •Control Channel, DCCH •Digital Voice Channel, DTCH (Digital Traffic Channel) •Digital Data Channel, DDCH Both the analog and digital modes have different sta
RH-42 System Module CCS Technical Documentation • storage temperature range: -40 to + 85 oC All of the EIA/TIA-136-270A requirements are not exactly specified over the temperature range. For example, the RX sensitivity requirement is 3dB lower over the –30 - +60 °C range. Engine Module Baseband Module The core part of the transceiver’s baseband (see the figure below) consists of two ASICs — the UEM and UPP — and flash memory. The following sections illustrate and explain these parts in detail.
RH-42 System Module CCS Technical Documentation UEM Introduction to UEM UEM is the Universal Energy Management IC for digital hand portable phones. In addition to energy management, it performs all the baseband’s mixed-signal functions. Most UEM pins have 2kV ESD protection, and those signals considered to be more easily exposed to ESD, have 8kV protection within the UEM. These kinds of signals are (1) all audio signals, (2) headset signals, (3) BSI, (4) Btemp, (5) Fbus, and (6) Mbus signals.
RH-42 System Module CCS Technical Documentation The VCORE regulator supplies the DSP and the core part of the UPP. The voltage is programmable and the startup default is 1.5V. The regulator goes into the low Iq-mode when in the Sleep mode. The VR1 regulator uses two LDOs (VR1A and VR1B) and a charge pump. The charge pump requires one external 1uF capacitor in the Vpump pin and a 220nF flying capacitor between the CCP and CCN pins.
RH-42 System Module CCS Technical Documentation nections, DBUS (programmable clock) for DSP and CBUS (1.0MHz GSM and 1.08MHz TDMA) for MCU. The UEM is a dual voltage circuit: the digital parts are run from 1.8V and the analog parts are run from 2.78V. The Vbat (3,6V) voltage regulators's input is also used. Audio Codec The baseband supports two external microphone input areas and one external earphone output.
RH-42 System Module CCS Technical Documentation Flash Memory Introduction The RH-42 transceiver uses a 16-Mbit flash as its external memory. The VIO regulator is used as a power supply for normal in-system operation. An accelerated program/erase operation can be obtained by supplying Vpp of 12 volt to the flash device. The device has two read modes: asynchronous and burst. The burst read mode is utilized in RH-42, except for the start-up, when the asynchronous read mode is used for a short time.
RH-42 System Module CCS Technical Documentation S Left Up S Right Send Down End 1 2 3 4 5 6 7 8 9 * 0 # Figure 3: Placement of keys Power Key All signals for the keyboard come from the UPP ASIC, except PWRONX line for the power key signal which is connected directly to the UEM. The pressing of the PWR key grounds the PWRONX line and the UEM generates an interrupt to UOO, which is then recognized as a PWR key press.
RH-42 System Module CCS Technical Documentation Lights Introduction RH-42 has has blue LEDs for lighting purposes. The LED type is blue-light emitting and SMD through-hole mounted. Interfaces The display lights are controlled by a Dlight signal from the UEM. The Dlight output is the PWM signal, which is used to control the average current going through the LEDs. When the battery voltage changes, the new PWM value is written onto the PWM register.
RH-42 System Module CCS Technical Documentation of magnetic material and it is located in a magnetic field created by a permanent magnet. The winding is not attached to the diaphragm, as is the case with the speaker. The winding is located in the magnetic circuit so that it can alter the magnetic field of the permanent magnet, thus changing the magnetic force affecting the diaphragm. The buzzer's useful frequency range is approximately from 2 kHz to 5 kHz.
RH-42 System Module CCS Technical Documentation Excess humidity indicator 4(GND) 3(BTEMP) 2(BSI) 3(VBAT) Figure 5: BMC-3 Battery contacts (BLC-2 has the same interface) Battery Connector RH-42 uses the spring-type battery connector. This makes the phone easier to assemble in production and the connection between the battery and the PWB is more reliable. Battery Connector Interface # Signal name Batt. I/ O Signal properties A/D--levels--freq./timing Description / Notes 1 VBAT (+) (batt.
RH-42 System Module CCS Technical Documentation GND VIN PWMO XMICP XMICN HF HEADINT HFC MIC MICN Figure 6: System Connector An accessory is detected by the HeadInt- line, which is connected to the XEARP inside the system connector. When an accessory is connected, it disconnects XEARP from HEADINT, and the UEM detects it and generates an interrupt (UEMINT) to the MCU. After that, the HOOKINT line is used to determine which accessory is connected.
RH-42 System Module CCS Technical Documentation Technical Information ESD protection is made up by (1) spark caps, (2) a buried capacitor (Z152 and Z154-157), and (3) ±8kV inside the UEM The RF and BB noises are prevented by inductors. PPH-1 Handsfree Introduction The PPH-1 handsfree device • provides the charging and handsfree functionality, • has a built-in speaker, and • uses a phone microphone, but also has a connector for the HFM-8 optional external microphone (using HFM-8 mutes phone microphone).
RH-42 System Module CCS Technical Documentation Test Interfaces Production Test Pattern The interface for RH-42 production testing is a 5-pin pad layout in the BB area (see the following figure). The production tester connects to these pads by using spring connectors. The interface includes the MBUS, FBUSRX, FBUSTX, VPP, and GND signals. The pad size is 1.7 mm. The same pads are used also for AS test equipment, such as the module jig and the service cable. 2. FBUS_TX 3. FBUS_RX 6. VPP 8. GND 7.
RH-42 System Module CCS Technical Documentation EMC General The EMC/ESD performance of RH-42’s baseband is improved by using a shield to cover the main components of the BB, such as the UEM, UPP, and Flash. The UEM has internal protection against a ±8kV ESD pulse in most sensitive pins and ±2kV in other pins. The BB shield is soldered to the PWB and it also increases the rigidity of the PWB in the BB area, thus improving the phone’s reliability.
RH-42 System Module CCS Technical Documentation System Connector Lines System Connector signals that have EMC protection Protection type VIN XMIXP XMICN XEARP XEARN X X X X spark gaps X X X X X X PWB capacitors X X X X X X X X X X X X X X ferrite bead (600 /199MHz) ferrite bead (420 /100MHz) MICP X X RC-circuit capacitor to ground HEADINT X X Battery Connector Lines BSI and BTEMP lines are protected by spark gaps and the RC circuit (4k7 and 10n), in which the resisto
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RH-42 System Module CCS Technical Documentation BB Internal Connections Page 28 Nokia Corporation Confidential Issue 2 09/2003
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RH-42 System Module CCS Technical Documentation UPP Block Signals Issue 2 09/2003 Nokia Corporation Confidential Page 33
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RH-42 System Module CCS Technical Documentation Memory Block Interfaces Issue 2 09/2003 Nokia Corporation Confidential Page 37
RH-42 System Module CCS Technical Documentation Audio Interfaces Page 38 Nokia Corporation Confidential Issue 2 09/2003
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RH-42 System Module CCS Technical Documentation Key/Display blocks Keyboard Interface Display Interface RF Module Requirements The RH-42 RF module supports the following systems: • AMPS • TDMA 800 The minimum transceiver performance requirements are described in TIA/EIA-136-270. The RH-42 RF must follow the requirements in the revision A. The EMC requirements are set by FCC 47CFR 15.107 (conducted emissions), 15.109 (radiated emissions, idle mode), and 22.917 (radiated emissions, call mode).
RH-42 System Module CCS Technical Documentation parts, highband TX upconverter, lowband TX upconverter, and all PLLs, lowband LNA, TX VHF VCO active part, and loopfilter. RF filtering, 2G LNA, power amplifiers, and TX power detection circuitry are left outside Taco. The phone comprises of one single-sided, six–layer PWB. A single multiwall RF shield is used and this sets the maximum component height to 2.0 mm. An internal antenna is located on the top of the phone and there is room for a 4.
RH-42 System Module CCS Technical Documentation Figure 11: RF Frequency Block Plan Due to the AMPS mode, simultaneous reception and transmission, TX and RX IF frequencies are exactly 45 MHz apart. RXIF is 135.54 MHz and TXIF is 180.54 MHz. The RXIF frequency is set so that it is not a multiple of either of VHF's comparison frequency (120k). In digital mode (TDMA800), RXIF frequency is 135.54 MHz and TXIF is (180.54MHz).
RH-42 System Module CCS Technical Documentation Figure 12: Power distribution Issue 2 09/2003 Nokia Corporation Confidential Page 43
RH-42 System Module CCS Technical Documentation Regulators The regulator circuit is the UEM and the specifications are found in the following table: Regulator name Output voltage (V) Regulator Max. current (mA) RF total 1 GHz RF total 2 GHz VR1 a/b 4.75 ± 3% 10 4 4 VR2 2.78 ± 3% 100 100 76 VR3 2.78 ± 3% 20 2 2 VR4 2.78 ± 3% 50 23 24 VR5 2.78 ± 3% 50 5 5 VR6 2.78 ± 3% 50 5 5 VR7 2.78 ± 3% 45 40 45 IPA1, IPA2 2.7 max. 1 ± 10% 3 ± 4% 3.5 ± 4% 5 ± 3% 1.3 – 5.0 1.
RH-42 System Module CCS Technical Documentation ITEM NMP Requirement TDMA, AMPS 800 RX frequency range, DAMPS 800 869.01... 893.97 LO frequency range 2009.1... 2059.2 1st IF frequency 135.54 Channel NBW, RF 28.6 IF 1 3dB roll off min. frequency (+-?f) 13 2nd IF min. 3dB bandwidth 16 / IQ-branch Max total group delay at 3dB bandwidth C/N for sensitivity, digital analog C/I for selectivity, 7 3.
RH-42 System Module CCS Technical Documentation ITEM NMP Requirement Gain relative accuracy in receiving band ** 2 Gain absolute accuracy in receiving band ** 4 * referenced to the sensitivity level ** After production alignment AMPS/TDMA 800 MHz Front End Typical values. Parameter MIN TYP MAX Unit/Notes Diplexer input loss 0.35 0.4 0.45 dB Duplexer input loss 2.5 3 4.1 dB LNA gain: High gain mode Low gain mode 16 -4.5 16.5 -4 17.3 -3.8 dB dB LNA noise figure* 1.4 1.7 2.
RH-42 System Module CCS Technical Documentation tics from synthesizer specification document [6]. Transmitter The transmitter RF architecture is up-conversion type (desired RF spectrum is low side injection) with (RF) modulation and gain control at IF. The IF frequency is band-related being 180.54 MHz at cellular band. The cellular band is 824.01 MHz - 848.97 MHz. Common IF The RF modulator is integrated with Programmable Gain Amplifier (PGA) and IF output buffer inside Taco_T RFIC-chip.
RH-42 System Module CCS Technical Documentation False TX indication is based on detected power measurement when carrier is not on. The insertion loss of coupler is –0.42dB (max) at cellular band. Typical values for insertion losses are about –0.2dB. The filtering performance of diplexer is taken in account in system calculations. Antenna Circuit Here the antenna circuit stands for duplex filters and the diplexer.
