Panasonic EB-G450 Quick start guide

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Order Number: MCUK971001G8
Technical Guide
G450 Personal Cellular Telephone Handheld por able
EB-G450
Car moun ki
EB-HF501Z
Easy fi car moun ki
EB-HF450Z
Dual charger
EB-CR500
Issue 1
Revision 0

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This Technical Guide is copyrigh and issued on he s ric unders anding ha i is no o be reproduced, copied, or
disclosed o any hird par y, ei her in whole or par , wi hou he prior wri en consen of Ma sushi a Communica ion
Indus rial UK L d.
Every care has been aken o ensure ha he con en s of his manual give an accura e represen a ion of he
equipmen . However, Ma sushi a Communica ion Indus rial UK L d. accep s no responsibili y for inaccuracies ha
may occur and reserves he righ o make changes o specifica ion or design wi hou prior no ice.
The informa ion con ained in his manual and all righ s in any designs disclosed herein, are and remain he
exclusive proper y of Ma sushi a Communica ion Indus rial UK L d.
O her pa en s apply o ma erial con ained in his publica ion:
BULL CP8 PATENTS
Commen s or correspondence concerning his manual should be addressed o:
Cus omer Suppor Depar men ,
Ma sushi a Communica ion Indus rial UK L d.,
Col hrop,
Tha cham,
Berkshire. RG19 4ZD.
ENGLAND
© 1997 Ma sushi a Communica ion Indus rial UK L d.
Issue 1 ii MCUK971001G8
Revision 0 Technical Guide

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MCUK971001G8 iii Issue 1
Technical Guide Revision 0
TABLE OF CONTENTS
1 INTRODUCTION
1.1 Purpose of his Guide ..............................................1-1
1.2 S ruc ure of he Guide ..............................................1-1
2 INTERFACES AND TEST POINTS
2.1 In roduc ion ...................................................2-1
2.2 In erfaces ....................................................2-1
2.3 Tes Poin s ...................................................2-4
3 RF OVERVIEW
3.1 In roduc ion ...................................................3-1
3.2 Func ional Descrip ion..............................................3-1
4 TRANSMITTER
4.1 In roduc ion ...................................................4-1
4.2 Func ional Descrip ion..............................................4-2
5 RECEIVER
5.1 In roduc ion ...................................................5-1
5.2 Func ional Descrip ion..............................................5-2
6 BASEBAND OVERVIEW
6.1 In roduc ion ...................................................6-1
6.2 Fuc ional Descrip ion ..............................................6-1
7 GEMINI
7.1 In roduc ion ...................................................7-1
7.2 Func ional Descrip ion..............................................7-1
8 VEGA
8.1 In roduc ion ...................................................8-1
8.2 Func ional Descrip ion..............................................8-1
9 POWER SUPPLIES
9.1 In roduc ion ...................................................9-1
9.2 Overview ....................................................9-1
9.3 Power-up ....................................................9-2
9.3.3 Power-down ...................................................9-3
9.4 Power Managemen ...............................................9-4
10 ACCESSORIES
10.1 Handsfree Uni - Circui Descrip ion ......................................10-1
10.2 Dual Charger .................................................10-4

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WARNINGS AND CAUTIONS
WARNING
The equipmen described in his manual con ains polarised capaci ors u ilising liquid elec roly e. These devices
are en irely safe provided ha nei her a shor -circui nor a reverse polari y connec ion is made across he
capaci or erminals. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN DAMAGE TO THE
EQUIPMENT OR, AT WORST, POSSIBLE INJURY TO PERSONNEL RESULTING FROM ELECTRIC SHOCK
OR THE AFFECTED CAPACITOR EXPLODING. EXTREME CARE MUST BE EXERCISED AT ALL TIMES
WHEN HANDLING THESE DEVICES.
CAUTION
The equipmen described in his manual con ains elec ros a ic sensi ive devices (ESDs). Damage can occur o
hese devices if he appropria e handling procedure is no adhered o.
ESD Handling precautions
A working area where ESDs may be safely handled wi hou undue risk of damage from elec ros a ic discharge,
mus be available. The area mus be equipped as follows:
Working Surfaces - All working surfaces mus have a dissipa ive bench ma , SAFE for use wi h live equipmen ,
connec ed via a 1M2 resis or (usually buil in o he lead) o a common ground poin .
Wris S rap - A quick release skin con ac device wi h a flexible cord, which has a buil in safe y resis or of be ween
5k2 and 1M2 shall be used. The flexible cord mus be a ached o a dissipa ive ear h poin .
Con ainers - All con ainers and s orage mus be of he conduc ive ype.
Batteries
This equipmen may con ains an in ernal ba ery in addi ion o he ex ernal ba ery packs. These ba eries are re-
cyclable and should be disposed of in accordance wi h local legisla ion. They mus no be incinera ed, or disposed
of as ordinary rubbish.
Issue 1 iv MCUK971001G8
Revision 0 Technical Guide

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1 INTRODUCTION
1.1 Pu pose of this Guide
This guide con ains echnical informa ion for he Panasonic G450 personal cellular elephone sys em opera ing on
he GSM ne work. Procedures for ins alling, opera ing and servicing (e.g. disassembly and es ing) he elephone
sys em are provided in he associa ed Service Manual.
1.2 St uctu e of the Guide
The guide is s ruc ured o provide service-engineering personnel wi h he following echnical informa ion on he
GSM mobile elephone:
1. In erface de ails and relevan es poin s.
2. Func ional descrip ion of each sec ion of he mobile elephone.
3. De ailed descrip ion of each sec ion of he mobile elephone.
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2 INTERFACES AND TEST POINTS
2.1 Int oduction
This sec ion provides de ails on connec ions be ween he RF and Baseband PCB and o her in erfaces on G450.
2.2 Inte faces
2.2.1 Baseband and RF
This de ails he 50way connec or be ween he RF and baseband PCB.
PIN Signal Direc ion Descrip ion
1 RX_AUDIO RF o Baseband Receive audio
2 TX_AUDIO Baseband o RF Transmi audio
3 A_GND Audio ground
4 LO_EN RF o Baseband RF iming signal
5 BUZZ RF o Baseband Buzzer driver
6 SERIAL_RX Baseband o RF Serial da a receive
7 SERIAL_TX RF o Baseband Serial da a ransmi
8 HF_ON RF o Baseband HF power con rol
9 nADP_DETECT Baseband o RF Da a adap or de ec
10 nHF_DETECT Baseband o RF Handsfree de ec
11 IGNITION Baseband o RF Igni ion
12 nRADIO_MUTE RF o Baseband Radio mu e
13 nLOGIC_POWER RF o Baseband Logic power
14 CHARGE_ON Baseband o RF Enable charging
15 EXT PWR Baseband o RF Ex ernal power
16 PA_LOW RF o Baseband RF con rol signal (indica ed low power ou pu from PA –
no used)
17 BAT_TEMP Baseband o RF Ba ery empera ure
18 VBATT Ba ery inpu
19 GND Ground
20 GND Ground
21 nON_HOOK Baseband o RF On hook
22 SIM_5V RF o Baseband SIM 5v power
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INTERFACES AND TEST POINTS

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PIN Signal Direc ion Descrip ion
23 SIM_RESET RF o Baseband SIM rese line
24 SIM_IO Bidirec ional SIM inpu /ou pu line
25 SIM_CLK RF o Baseband SIM clock line
26 VCXO_CNTL RF o Baseband VCXO con rol line (13 bi D/A)
27 IFLOSEL Baseband o RF RF iming signal
28 RF_GND RF o Baseband Ground
29 PA_RAMP RF o Baseband Power con rol ramp
30 nQ_RX Baseband o RF Downlink nQ
31 Q_RX Baseband o RF Dwonlink Q
32 nQ_TX RF o Baseband Uplink nQ
33 Q_TX RF o Baseband Uplink Q
34 nI_TX Baseband o RF Downlink nI
35 I_RX Baseband o RF Downlink I
36 nI_TX RF o Baseband Uplink nI
37 I_TX RF o Baseband Uplink I
38 GND Ground
39 STAY_ALIVE RF o Baseband Keep power on af er igni ion swi ched off
40 RXON2 RF o Baseband Timed signal
41 RXON1 RF o Baseband Timed signal
42 BCAL RF o Baseband Timed signal (calibra ion – also used by VEGA)
43 TXON1 RF o Baseband Timed signal
44 PAON RF o Baseband Timed signal
45 TSP_AGCSEL RF o Baseband AGC selec for imed serial por
46 TSP_PPLSEL RF o Baseband PLL selec for imed serial por
47 TSP_DO RF o Baseband GEMINI imed serial por da a ou
48 TSP_CLK RF o Baseband GEMINI imed serial por clock
49 VBAT Ba ery vol age
50 13MHz_SYS_CLK Baseband o RF 13MHz VCXO ou pu
Issue 1 Sec ion 2 MCUK971001G8
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INTERFACES AND TEST POINTS

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2.2.2 Ex ernal In erface
G450 has 2 ex ernal connec ors, a mul iway connec or for use wi h a handsfree and da a and addi ional con ac s
for he charging he ba ery pack while in he desk op charger. Bo h in refaces are elec rically and mechanically
compa eble wi h G450.
Hands ree and data connector (J001)
PIN Signal Direc ion
(from HH) Descrip ion
1 GND Power supply and digi al signal ground
2 TX_AUDIO Inpu TX audio
3 AUDIO_GND Audio signal ground
4 nHF_ON Ou pu Handsfree con ol signal
(Lo=ON, Hi-Zo=OFF)
5 nADP_SENSE Inpu Da a adap or selec signal
6 SERIAL_UP Inpu UART up (9600, 33.8kbps)
7 SERIAL_DOWN Ou pu UART down (9600, 33.8kbps)
8 EXT_PWR Inpu Power for charging
9 GND Digi al signal power supply ground
10 RX_AUDIO Ou pu RX audio signal (analogue)
11 nRADIO_MUTE Ou pu Radio mu e
(Lo=mu e, Hi-Zo=No mu ed)
12 nHF_SENSE Inpu Handsfree selec signal
(Lo=Handsfree mode)
13 nFLASH_WE /
PERF_PWR_ENBL Ou pu Flash wri e enable and enable ex ernal peripheral
(Lo=Enable flash wri e)
14 IGNITION Inpu Condi ion of igni ion
(Lo=off, Hi=on)
15 nLOGIC_PWR Ou pu Handheld s a e
(Lo=off, Hi=on)
16 PERF_PWR /
PA_ON Ou pu Power amplefier con rol signal and ex ernal peripheral
power supply
Charge Contacts
PIN Signal Descrip ion
20 EXT_PWR Power for charging
21 GND Ground
MCUK971001G8 Sec ion 2 Issue 1
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Battery Contacts
PIN Signal Descrip ion
T TEMP Ba ery empera ure sense
+ BATT + Ba ery posi ive
- BATT - Ba ery nega ive
SIM Inter ace
PIN SIGNAL
1 GND
25V
3 No connec ed
4 Rese
5 Serial inpu /ou pu
6 Clock
7 No connec ed
8 No connec ed
2.3 Test Points
2.3.1 Baseband
TP No. Signal
2 GND
3 nRESET
5 nBSCAN (U4 pin 92)
6 SSDX (U8 pin 18)
7 SSRST (U8 pin 17)
8 SSCLK (U8 pin 20)
9 SSDR (U8 pin 19)
13 TXON1
14 RXON2
15 RXON1
Issue 1 Sec ion 2 MCUK971001G8
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TP No. Signal
16 BCAL
17 TDI (U8 pin 63)
18 TDO (U8 pin 62)
20 TCK (U8 pin 64)
21 TMS (U8 pin 61)
22 nHF_ON
23 IGNITION
24 nLOGIC_PWR
25 nADP_SENSE
26 BAT_TEMP
27 SERIAL_IN
28 BUZZ
29 nHF_SENSE
30 nON_HOOK
31 IFLOSEL
32 LO_EN
33 PAON
34 PLL_SD
35 PLL_CLK
36 IFAGCEN
37 PLL_STRB
38 AFC
39 PARAMP
40 UQX
41 UQ
42 UI
43 UIX
44 DI
45 DIX
MCUK971001G8 Sec ion 2 Issue 1
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INTERFACES AND TEST POINTS