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PAMS
Technical Documentation
NSE–3
System Module
Original 11/97
Page 3 – 18
Battery charging
The electrical specifications give the idle voltages produced by the ac-
ceptable chargers at the DC connector input. The absolute maximum in-
put voltage is 30V due to the transient suppressor that is protecting the
charger input. At phone end there is no difference between a plug–in
charger or a desktop charger. The DC–jack pins and bottom connector
charging pads are connected together inside the phone.
VIN
CHAPS
10k
1n
PWM
VBAT
GND
CCONT
CHRG_CTRL
L_GND
CHARGER
PWM_OUT
TRANSCEIVER
0R22
VCHAR
ICHAR
100k
22k
1u
2A
30V
VCH
VOUT
RSENSE
GND
NOT IN
ACP–7
CCONTINT
MAD
LIM
MAD
Startup Charging
When a charger is connected, the CHAPS is supplying a startup current
minimum of 130mA to the phone. The startup current provides initial
charging to a phone with an empty battery. Startup circuit charges the
battery until the battery voltage level is reaches 3.0V (+/– 0.1V) and the
CCONT releases the PURX reset signal and program execution starts.
Charging mode is changed from startup charging to PWM charging that is
controlled by the MCU software. If the battery voltage reaches 3.55V
(3.75V maximum) before the program has taken control over the charg-
ing, the startup current is switched off. The startup current is switched on
again when the battery voltage is sunken 100mV (nominal).
Parameter
Symbol
Min
Typ
Max
Unit
VOUT Start– up mode cutoff limit
Vstart
3.45
3.55
3.75
V
VOUT Start– up mode hysteresis
NOTE: Cout = 4.7 uF
Vstarthys
80
100
200
mV
Start–up regulator output current
VOUT = 0V ... Vstart
Istart
130
165
200
mA
Содержание NSE-3 SERIES
Страница 3: ...NSE 3 SeriesTransceivers PAMS Technical Documentation Original 11 97 Chapter 1 Foreword ...
Страница 7: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Chapter 3 System Module ...
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Страница 80: ...PAMS Technical Documentation Original 11 97 Chapter 4 UI Module UE4 ...
Страница 83: ...PAMS Technical Documentation UI Module UE4 Page 4 4 Original 11 97 Baseband Block Diagram ...
Страница 95: ...PAMS Technical Documentation UI Module UE4 Page 4 16 Original 11 97 This page intentionally left blank ...
Страница 96: ...UIF Module UE4 Original 11 97 4 A3 1 Circuit Diagram of UIF Module Version 8 Edit 44 for layout version 10 ...
Страница 98: ...UIF Module UE4 Original 11 97 4 A3 3 Circuit Diagram of Keyboard Version 8 Edit 38 for layout version 10 ...
Страница 99: ...UIF Module UE4 Original 11 97 4 A3 4 Layout Diagram of UE4 Version 10 ...
Страница 100: ...PAMS Technical Documentation Original 08 96 Appendix 1 TRANSCEIVER NSE 3NX ...
Страница 104: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Disassembly Troubleshooting Instructions ...
Страница 139: ...PAMS Technical Documentation Original 11 97 HFU 2 ...
Страница 146: ...PAMS Technical Documentation HFU 2 Page 8 Original 11 97 Exploded View of HFU 2 3 2 4 5 1 ...
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Страница 154: ...PAMS Technical Documentation Original 11 97 CARK 64 Installation Guide ...
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Страница 159: ...PAMS Technical Documentation Original 11 97 CARK 91 Installation Guide ...
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Страница 168: ...NSE K B 3 Series Transceivers PAMS Technical Documentation Original 11 97 Service Tools ...
Страница 192: ...PAMS Technical Documentation NSE K B 3 Service Tools Page 25 Original 11 97 This page intentionally left blank ...
Страница 193: ...NSE 3 System Module UP8T Original 11 97 3 A3 1 Block Diagram of System RF Blocks ...
Страница 194: ...NSE 3 System Module UP8T Original 11 97 3 A3 2 Circuit Diagram of Baseband Version 12 Edit 8 for layout version 14 ...
Страница 195: ...NSE 3 System Module UP8T Original 11 97 3 A3 3 Circuit Diagram of Power Supply Version 14 Edit 41 for layout version 14 ...
Страница 198: ...NSE 3 System Module UP8T Original 11 97 3 A3 6 Circuit Diagram of Audio Version 14 Edit 27 for layout version 14 ...
Страница 199: ...NSE 3 System Module UP8T Original 11 97 3 A3 7 Circuit Diagram of IR Module Version 14 Edit 21 for layout version 14 ...
Страница 200: ...NSE 3 System Module UP8T Original 11 97 3 A3 8 Circuit Diagram of RF Block Version 14 Edit 26 for layout version 14 ...
Страница 203: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Tuning Instructions ...
Страница 217: ...PAMS Technical Documentation NSE 3 Tuning Instructions Page 15 Original 11 97 This page intentionally left blank ...