CCS Technical Documentation RH-48 Series Transceivers System Module Issue 1 11/2003 Confidential ©2003 Nokia Corporation
RH-48 System Module CCS Technical Documentation Contents Transceiver RH-48 ......................................................................................................... 3 Introduction ..................................................................................................................3 Operational Modes .......................................................................................................3 Baseband Module ...........................................................
RH-48 System Module CCS Technical Documentation Transceiver RH-48 Introduction The RH-48 is available as a CDMA single-band engine (800 MHz CDMA). Operational Modes There are several different operational modes: Modes have different states controlled by the cellular SW. Some examples are: Idle State (on ACCH), Camping (on DCCH), Scanning, Conversation, No Service Power Save (NSPS) previously OOR = Out of Range. In the power-off mode, only the circuits needed for power-up are supplied.
RH-48 System Module CCS Technical Documentation Figure 1: Baseband module diagram UEM UEM Introduction UEM is the Universal Energy Management IC for DCT4 digital handportable phones. In addition to energy management, it performs all the baseband mixed-signal functions. Most of UEM pins have 2kV ESD protection. Those signals that are considered to be exposed more easily to ESD have 8kV protection inside UEM. Such signals are all audio signals, headset signals, BSI, Btemp, Fbus, and Mbus signals.
RH-48 System Module CCS Technical Documentation BB VANA: 2.78V typ 80mA max RF VR 1a: 4.75V 12mA max Vflash1: 2.78V typ 70mA max Vflash2: 2.78V typ 40mA max VR2: 2.78V 100mA max VSim: 1.8/3.0V 25mA max VR3: 2.78V 20mA max VIO: 1.8V typ 150mA max VR4: 2.78V 50mA max Vcore: 1.0-1.8V 100mA max VR5: 2.78V 50mA max VR6: 2.78V 50mA max VR7: 2.78V 45mA max VANA regulator supplies internal and external analog circuitry of BB. It is disabled in sleep mode.
RH-48 System Module CCS Technical Documentation analog AFC signal to the RF section according to the UPP DSP digital control. It also converts PA temperature into real data for the DSP. The UPP controls the RFIC through the 3-wire RFIC bus. UPP also provides PDM regulator for RF interface (RX/TX AGC control). Charging Control The CHACON block of UEM asics controls charging.
RH-48 System Module CCS Technical Documentation Table 1: PDM Interface Signal name From To Parameter Min RX_IF_AGC UPP GenIO 9 Yoda Voltage Min Max ---------------Clk Rate (1) 0.0 1.75 -------- Voltage Min Max ---------------Clk Rate (1) 0.0 1.75 ------- Voltage Min Max ---------------Clk Rate (3) 0.0 1.75 -------- TX_IF_AGC TX_RF_AGC UPP GenIO 7 Jedi UPP GenIO 26 Jedi Typ Max Unit Function 0.1 1.86 ------19.2 V 1.8 -----9.6 Controls gain of VGA r in receiver 0.1 1.
RH-48 System Module CCS Technical Documentation Table 4: Regulated Supplies from UEM to RF Signal name From To Parameter Min Typ Max Unit Function VBAT Battery PA & UEM, external driver amps Voltage ---------------Current 3.2 ----0 3.5 ------ 5.1 -----2A peak V ------ Battery supply. Lower limit is to guarantee regulator PSRR VR1A UEM PA Vref Voltage ---------------Current 4.6 -----0 4.75 -----4 4.9 -----5 V -----mA Charge pump + linear regulator.
RH-48 System Module CCS Technical Documentation Table 6: RF-BB Analog Signals Signal name From To Parameter Min Typ Max Unit Function RX_IP_RF RX_IN_RF RX_QP_RF RX_QN_RF Yoda UEM Differential voltage swing (static) -------------------------DC level -------------------------Input Bandwidth 0.3 0.5 1.0 Vpp -------1.3 -------- ------1.35 ------- -------1.
RH-48 System Module CCS Technical Documentation The Body consists of the NMP custom cellular logic functions. These contain all interfaces and functions needed for interfacing with other DCT4 baseband and RF parts. It includes the following sub-blocks: MFI, SCU, CTSI, RxModem, AccIF, UIF, Coder, GPRSCip, BodyIF, SIMIF, PUP, and CDMA (Corona). NOR Flash Memory and SRAM This device is a 128Mbit Muxed Burst Multi Bank Flash and 8Mbit Muxed fCMOS SRAM combined in a Multi Chip Package Memory.
RH-48 System Module CCS Technical Documentation used to control average current going through LEDs. A step-up converter and a constant current source is used to ensure that the LEDs provide uniform intensity and color. Vibra Introduction Vibra is located on the D-cover and is connected by spring connectors on the PWB. It is located in the bottom of the engine. Interfaces Vibra is controlled by pwm signal VIBRA from UEM. This signal allows control of both frequency and pulse width of signal.
RH-48 System Module CCS Technical Documentation The MIDI data stream is a unidirectional, asynchronous bit stream at maximum 31.25 kbits/sec. with 10 bits transmitted per byte (a start bit, 8 data bits, and one stop bit). MIDI data includes two categories of signals: MIDI tones and Alerting Tones. Both are generated from DSP and send to the MIDI speaker.
RH-48 System Module CCS Technical Documentation Figure 2: Battery pack pin order Battery Connector RH-48 uses a spring-type battery connector. This ensures a more reliable connection between the battery and PWB. # Signal name Connected from - to Batt I/0 Signal properties A/D-levels-freq./ timing Description/ Notes 1 VBAT (+) (batt.) VBAT I/O Vbat 2 BSI BSI (batt.
RH-48 System Module CCS Technical Documentation 2-wire differential mic input • Power out 2.
RH-48 System Module CCS Technical Documentation 6.50 9.50 6.55 21.20 2.70 5.40 1.00 PWB 3.50 Shielding GND HSEAR R P HSEAR R N HSEAR P HSEAR N XMIC P XMIC N DATA GND USB D- / Fbus TX USB D+ / Fbus RX USB Vbus Vout ACI Charge GND Shielding GND 5.70 0.30 Metal shielding Figure 4: Mechanical dimensions and signals of Tomahawk bottom connectors An accessory is detected by the ACI-line.
RH-48 System Module CCS Technical Documentation Test Interfaces Production Test Pattern Interface for RH-48 production testing is 5-pin pad layout in BB area (see figure below). Production tester connects to these pads by using spring connectors. Interface includes MBUS, USRX, FBUSTX, VPP, and GND signals. Pad size is 1.7mm. The same pads also are used for AS test equipment such as module jig and service cable.
RH-48 System Module CCS Technical Documentation Figure 6: RH-48 BB test points, regulators, and BB ASICs Issue 1 11/2003 Confidential ©2003 Nokia Corporation Page 17
RH-48 System Module CCS Technical Documentation Figure 7: RH-48 BB test points, regulators, and BB ASICs General Information about Testing Phone Operating Modes The phone has three different modes for test/repair. Modes can be selected with suitable resistors connected to BSI- lines as follows: Page 18 Mode BSI- resistor Normal 75k Local 3.3k Test 6.8k ©2003 Nokia Corporation Remarks Recommended with baseband testing. Similar to Local mode, but making a phone call is possible.
RH-48 System Module CCS Technical Documentation The MCU software enters automatically to Local or Test mode at start-up if corresponding resistors are connected. Note: Baseband doesn’t wake up automatically when the battery voltage is connected (Normal mode). RF Module Requirements RH-48 supports CDMA 800 MHz as described in: • IS2000-2-A Physical Layer Standard for cdma2000 Spread Spectrum Systems; and • IS-98D (Draft 4) Recommended Minimum Performance Standard for Spread Spectrum Mobile Stations.
RH-48 System Module CCS Technical Documentation gain RF amplifier. The IF signal is converted up to RF with a differential output upconverter and then fed to the RF amplifier. The RF amplifier has variable gain capability (RF AGC) with up to 40 dB of dynamic gain control. The output of the Cell RF amplifier of Jedi is connected to an RF filter to reject TX noise in the RX band. The output of the RF filter is connected to the PA. Out of the PA is an isolator, then antenna.
RH-48 System Module CCS Technical Documentation resonator. The VCO operates at two times the common 183.6 MHz RX IF frequency. A band-switch signal, Band_Sel, is used to select the band of operation for the UHF VCO. The synthesizer is a dual-modulus prescaler type, and utilizes a phase detector with a charge pump that signals or sources currents, depending upon the phase difference between the detector input signals.
RH-48 System Module CCS Technical Documentation Receiver I/Q Down Converter LNA SW Control CELL IFA IF SAW CDMA BB Filter VGA BB AMP SAW To BB CDMA BB Filters LNA RFA ÷2 VHF PLL 367.2 MHz UHF VCO 1052.61-1077.57 Reference Clock To Base-Band Duplexer Loop Filter UHF Synthsizer JEDI VCTCXO AFC TX Figure 11: Receiver block diagram The receiver is a dual conversion I/Q receiver with a first IF of 183.6 MHz.
