Parts List of JF5 system module – 45. . . . . . . . . . . . . . . . . . . . . . . .
Technical Documentation
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Originat 05/98
PAMS
NHN–5NT
Technical Documentation
Transceiver NHN–5N
Introduction
Functional Description
The NHN–5N transceiver electronics consists of the UI module PCB and
the RF/system PCB. The UI module is connected to the system module
with a connector. The system and RF submodules are interconnected
with PCB wiring. The phone can be connected to accessories with a bot-
tom system connector, which includes charging and accessory control.
Block Diagram
The NHN–5N consist of 2 PCB’s: JF5 system module and GN4 user inter-
face module.
System Module JF5
The JF5 consists of 2 submodules, BASEBAND and RF. BASEBAND
consist of 3 functional blocks: PWRU, CTRLU and AUDIO; RF also con-
sists of 3 modules: RX, SYNT, TX; while the GN4 is the User Interface
module (UIF–module, kindly refer to section 4.).
RX
PWRU
CTRLU
BASEBAND–submodule
UIF–module
LCDLCD
LCD Driver
AUDIO
SYNT
TX
RF–submodule
BUZZER
MIC,EAR
DUP
ANT
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NHN–5NT
PAMS
System Module JF5
Baseband
Introduction
The baseband submodule controls the internal operation of the phone. It
controls the user interface, i.e. LCD driver, keyboard and audio interface
functions. The module performs all signalling towards the system and car-
ries out audio–frequency signal processing. In addition, it controls the op-
eration of the transceiver and stores tuning data for the phone.
Baseband Technical Summary
All functional blocks of the baseband are mounted on a single multi layer
printed circuit board. This PCB contains also the RF–parts. The chassis
of the radio unit contains separating walls for baseband and RF. All com-
ponents of the baseband are surface mounted and soldered by reflow.
The connections to accessories are fed through the CAP (Common Ac-
cessory Platform) bottom connector of the radio unit. The connections to
User Interface –module (UIF) are fed through a board to board connector.
There is no physical connector between RF and baseband.
Technical Documentation
Modes of Operation
The module has three operating modes: stand–by, listening and con-
versation mode.
Standby mode:
MCU clock is switched off, only NIPA timer is running to enable battery
save timings.
If a charger is connected, the MCU doesn‘t go to standby mode.
Listening mode:
In the listening mode some blocks of the audio IC (NIPA) are in standby
state.
Conversation mode:
In the conversation mode all ICs are active.
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bits/s
NHN–5NT
Technical Documentation
Maximum Ratings
ParameterValue
Operating temperature range –25 ... +55 deg. C
Storage temperature range –40 ... +85 °C
VBAT max. 8.8 V (TX off)
VBAT max. 7.5 V (TX on)
VC max.16 V.
Battery charging is enabled +5 ... +45 °C
DC Characteristics
Pin / Conn.Line SymbolMinimumTypical /
Nominal
VCS
11.0V12.0V 16.0V Slow charger
MaximumUnit / Notes
System Module JF5
VBA T 5.3V 6.0V 8.8V
VRF 5.3V 6.0V 8.8V VBAT for RF mod-
4.1V 4.5V5.0VOutput high level
0V0.5VInput low level
2.4V3.2VInput high level
Hook
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NHN–5NT
detection
detection
resistor in
g
F
key ad
PAMS
System Module JF5
Line SymbolPin /
Conn.
2/systemVOUT
5/systemBOOST0
11/system
BOOST1
Technical Documentation
Minimum
0V 0.2V0.4VOutput low, power
4.1V 4.5V5.0VOutput high, power
Typi-
cal /
Nomi-
nal
0Vbooster detect /
3.3Vbooster detect /
0Vbooster detect /
i-
mum
off
on
power control ”0”
power control ”1”
power control ”0”
NotesMax-
HDA device power on/off
RF
booster
/ power
select
RF
booster
3.3Vbooster detect /
power control ”1”
12/system
2/batteryBSI
3/batteryBTEMP1.0V47k, B=4050 NTC between
3,4/UIFBACKLIGHT
VCS
9.8V16VIsink < 730mA
1.95V400mAh Li–ION
0.45V550mAh NiMH
1.95V1500mAh Li–ION
BTEMP and ground in battery
pack.
A 47k pull–up resistor in HP.
Vibrator control output (AC–
controlled)
0mAbacklights off
40mAbacklights on
/ power
select
A 47k
pull–up
HP.
Backlight–
ing for
keymat
17–24/UI
7–9/UIFROW(0:2)
Page 3 – 8
LD(0:7)
0V0.7VOutput/Input low
2.3V3.3VOutput/Input high
0V0.7VInput low
2.8V3.3VInput high
LCD I/O,
p
output
Keypad
input
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PAMS
data/con
ON but
NHN–5NT
Technical Documentation
Line SymbolPin /
Conn.
25/UIFLCDREG
26/UIFLCDCS
27/UIFLCDRESET
11/UIFXNWR
Minimum
0V0.7VOutput low
2.8V3.3VOutput high
0V0.7VOutput low
2.8V3.3VOutput high
0V0.7VOutput low
2.8V3.3VOutput high
0V0.7VOutput low
2.8V3.3VOutput high
Typi-
cal /
Nomi-
nal
i-
mum
System Module JF5
NotesMax-
LCD
-
trol
LCD chip
select
LCD re-
set
LCD write
28/UIFXNRD
10/UIFLCDCLK
12/UIFXPWRON
0V0.7VOutput low
2.8V3.3VOutput high
0V0.7VOutput low
2.8V3.3VOutput high
0V0.7VInput low
2.8V3.3VInput high
LCD read
LCD
clock
Power
ton
UIF Connector
Signal NamePinNotes
VL1Logic supply voltage 3.3V
CALLLED2Call LED
BACKLIGHT3,4Backlights on/off
VNEG6Negative voltage for LCD module
ROW0,1,27–9Lines for keyboard read
-
LCDCLK10LCD Driver clock
XNWR11LCD Driver write selection input
XPWRON12Power on control from keyboard
GND13,14,15,16Ground
LD(0:7)17–24Parallel data for LCD driver
LCDREG25LCD Driver control/data select
47k pull–up resistor.
VOUT2Hand–free device power on/off.
XEAR9External audio output to accessories or
handsfree speaker. There is a DC volt-
age control for HF unit mute control.
BGNDBGNDBattery connector
BTEMPBTEMPBattery connector, Battery temperature
BSIBSIBattery connector
VBATB+Battery connector
VCS12,CH+,
DC+
Battery charging voltage
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NHN–5NT
Technical Documentation
Connections
Battery Connector
4
+
34
Charging Connectors
3
127
1 6
12
Locking
System Module JF5
1
–
2
RF–connector
(not used)
System Connector
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NHN–5NT
PAMS
System Module JF5
Technical Documentation
CTRLU Control Block
The Control block controls all phones functions and it includes modem
and SIS–processor too.
CTRLU internal signals, input
Signal NameNotesFrom
VLLogic supply voltage, 3.3V.PWRU
VL3Logic supply voltage, 4.75V.PWRU
VREFReference voltage 3.3V 3%. Max.PWRU
XRESReset line from MUUMIPWRU
PWRONPower on signal from MUUMIPWRU
VCHARGCharger voltage to A/D converterPWRU
VBATSWBattery voltage to A/D converter.VCHARG
CLKMCUClock signal from NIP A.AUDIO
NMINo maskable Interrupt reques from NIPAAUDIO
XINTInterrupt reques from NIPA.AUDIO
HOOKHOOK–indicationSYSTEM
BTEMPBattery temperatureSYSTEM
BSIBattery size indicationSYSTEM
M2BUSSerial interfaceSYSTEM
RFTEMPRF temperatureSYNT
RSSIReceived signal strenght indicationRX
TXITransmitter output power level indicationTX
XPWRONPower buttom from UIF.UIF
ROW0Line for keyboard read.UIF
ROW1Line for keyboard read.UIF
ROW2Line for keyboard read.UIF
ACCDETAccessory detection lineSYSTEM
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NHN–5NT
Technical Documentation
System Module JF5
CTRLU internal signals, output
Signal NameNotesTo
CSWCharger controlPWRU
VOUTHeadset–adapter powersupplySYSTEM
M2BUSCommon serial clock (NIPA,sis)SYSTEM
AGCGain controlRX
RXERX Circuit power on/offRX
SCLKSynchronous data clock for synthesizersSYNT
SDATSynchronous data for synthesizers /
TX duplex filter current control 2 (option)
SLESynthesizer data latch enableSYNT
TXETransmitter control (on/off)TX
TXCTransmitter Power ControlTX
XNCSNIPA chip select signalAUDIO
XNWRNIPA/LCD write control signalAUDIO.UIF
MCU controls the watchdog timer in the MUUMI ASIC. It sends a positive
pulse approximately once every 1 s to the XPWROFF pin of the MUUMI
to keep the power on. If the CTRLU fails to deliver this pulse, the MUUMI
will remove power from the system. The CTRLU controls also the charger on/off switching in the PWRU block. When power off is requested,
the CTRLU leaves the MUUMI watchdog without reset. After the watchdog has elapsed the MUUMI cuts off the supply voltages from the phone.
Battery charging is controlled by CSW line.
VBATSW , Battery voltage measurement
Battery voltage can be measured from 5.4 V to 10.3 V nominal with 3.3 V
reference voltage. The absolute accuracy is low because of the reference 3 % accuracy and A/D–converter +/– 8 LSB accuracy . This battery
voltage measurement offset error must be calibrated with input voltage
6.0 V and 8.2 V. The A/D conversion result can be calculated from the
following equation:
Technical Documentation
A/D readout = 1024 * (VBATSW* ( 47/147)) / VREF
VREF=3.3 V
For example:
8.2 V results 814 = 32EH
6.0 V results595 = 253H
VCHARG , Charger voltage measurement
Charger voltage can be measured up to 18.3 V nominal. The A/D–conversion result can be calculated from equation :
A/D readout = 1024 * (VCSW*(22/122)) / VREF VREF=3.3 V
For example:
12.0 Vgives671 = 29FH
6.0 Vgives336 = 150H
BSI , Battery size indication
Battery type can be defined with the BSI resistor value. A NiMH battery
has a different BSI resistor compared with a Li–ION battery. Different
sizes of the Li–ION batteries cannot be identified.
BTEMP , Battery temperature measurement
Battery temperature measurement is implemented with a 47 kohm NTC
with N value of 4050 and 47 kohm pullup resistor. The A/D conversion
readout can be calculated from equation:
Page 3 – 14
A/D readout= 1024* ( R
For example:
45 Cgives?
25 Cgives?
5 Cgives?
0 Cgives?
NTC
/( R
NTC
+47k))
Originat 05/98
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NHN–5NT
Technical Documentation
Battery voltage is measured over the VBATSW and charging voltage over
the VCHARG. Battery temperature is measured over the BTEMP line.
Battery size is determined by reading the BSI line. This is pulled to +3,3V
by a 47kohm resistor. In the battery pack a ”size” resistor is connected
between BSI and GND. Battery charging is controlled by the CSW line.
Muumi watchdog is refreshed by controlling XPWROFF line.
– CTRLU – AUDIO
Interface between the MCU and the NIPA circuit is a bidirectional 8–bit
data bus with 4 address lines. Address, data and control lines are used in
the MCU as I/O–port pins. The data lines direction is controlled with the
MCU data direction register. The interface includes address outputs
NA0–3, data inputs (read) / outputs (write) ND0–7, chip select control output XCS , read control output XRD, write control output XWR and interrupt input XINT. When the MCU is in sleep state, the control signals XRD
and XCS must be in ’0’ state and the address output NA0–3 and NWR in
’1’ state and data lines ND0–7 must be in ‘0‘ state.
– CTRLU – UIF
System Module JF5
The keyboard is connected directly to the controller. ND0–6 are the output lines and ROW0–2 are the input lines. Keyboard scanning is done by
driving one ND line to 0 V at the time. If any key is pressed, then the corresponding ROW line goes to 0V and the phone knows which key is
pressed.
Data to the LCD Driver is written and read by ND(0:7) lines. XNRD/
XNWT are the read / write selection lines and NA0 is the instruction / data
register selection line. LCDCS line enables the LCD driver.
ND(0:7) lines are in 0 V state when phone is in sleep mode so that any
key pressing can be indicated.
Keyboard and LCD lights are controlled by LIGHTS signal.
– CTRLU – RX
RX circuit power is switched on/off by RXE signal.
The received signal strength is measured over the RSSI and the inter-
mediate frequency is measured over the IF.
– CTRLU – SYNT
RF temperature is measured over the RFTEMP. Frequency is controlled
by the AFC signal. The synthesizer is controlled via the synchronous serial bus SDAT/SCLK. The data is latched to the synthesizer by the positive edge of SLE line. The TX synthesizer power on/off (TXS/port P3) line
is controlled via PLL circuit.
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NHN–5NT
PAMS
System Module JF5
– CTRLU – TX
The transmitter output power level is measured over the TXI. TXE line
activates the power module. The power is controlled via TXC line which
is a PWM–controlled output port.
Technical Documentation
Main Components
– MCU
The phone MCU H8/3092 is a CMOS MCU. All the memory needed (128
kB ROM, 4 kB RAM) except the EEPROM, is located in the controller.
MCU operating clock (7.3728 MHz) is generated on the NIPA.
MCU Pins are listed in the table:
Pin NoPortSignalDescription
1PB0SISCLKClock for SIS prosessor
2PB1SISDATASerialdata to SIS prosessor
3PB2EDATASerial data to EEPROM
4PB3RXDSerial interface (M2BUS)
5PB4SCLKSerial clock for synthesiz
6PB5HOOKHandset hook signal
7PB6PWRONPower button
8PB7SLERX/TX synthesizer latch
9P90TXDSerial interface (M2BUS)
10P92RXDM2BUS net free timer input
11P94ECLKClock to EEPROM
12VssGNDMCU Ground
13–20P30–P37ND0–7Paraller data bus for NIPA,LCD & keys
21VccVLPower supply for processor
22P10NA0Address line for NIPA and LCD regis-
ter
23P11NA1Address line for NIPA
24P12NA2Address line for NIPA
25P13NA3Address line for NIPA
26P14XNCSNIPA chip select
27P15XNWRRead/write control to NIPA
28P16XNRDRead/write control to NIPA
29P17LCDCDLCD chip select
30GNDMCU Ground
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NHN–5NT
Technical Documentation
31
32–35P21–P24ROW0–3Keypad inputs
36P25protoseries indicator, pull–down if pro-
37P26
38P27CALLCNTCall continue during battery change
39P50XPWROFFMuumi watchdog refresh
40P51EARENAEAR amplifier enable
41P52
42P53LCDRESETReset to LCD
43P60
44MD0
45MD1
46
P20LIGHTSBacklight control
to
System Module JF5
47STBY
48RESXRESReset from MUUMI
49NMINMIInterrupt request from NIPA
50VssGNDGround
51EXTALEXTALExternal system clock from NIPA
52XTAL
53VccVL
54P63TXETransmitter on/off
55P64AGCGain control
56P65RXERX circuit power on/off
57RESO
58AVcc
59P70VBATSWBattery voltage
60P71VCHARGCharger voltage
61P72RSSIReceived signal strength
62P73TXITransmitter power monitor
63P74BTEMPBattery temperature
64P75BSIBattery size indication
65P76RFTEMPRF temperature
66P77ACCDETAccessory detection
67VrefVrefReference voltage for processor
68AVccVrefReference voltage for processor
Originat 05/98
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