Charging - Nokia RH-6 Series Baseband Description & Troubleshooting

CCS Technical Documentation
Regulator
VR4
VR5, VR6
VR7
VrefRF01
1
VIO
2
VSIM
VANA
2
VCORE
VFLASH1
VFLASH2
1 The second current value indicates the maximum possible output current of the
regulator when in low quiescent mode.
2 The output voltages are split into two different current categories. The upper part
is the lower range of output current, and the lower part is the higher range of
output current.
3 Condition in sleep-mode depends on MCU writings to UEM regulator register
solely.
4 Condition in sleep-mode depends on DSP writings to UEM register.

Charging

The charging of the main battery is controlled by the UEM. External components are
needed in order to sense charging current and voltage that are needed by the Energy
Management (EM) software and to protect against EMC into the baseband area. The
charger is connected to the phone via the DCT3 bottom connector or the charger pads of
the Pop-port system connector.
Issue 1 10/2003
Company Confidential
Table 2: UEM regulator outputs
Output Voltage (V)
Target
Min
RF 2.70
RF 2.70
1
RF 2.70
RF 1.334
BB 1.72
BB 1.745
2.91
BB 2.70
BB 1.000
1.235
1.425
1.710
0.974
1.215
1.410
1.692
BB 2.70
BB 2.70
3
© 2003 Nokia Corporation.
6 - BB Description & Troubleshooting
Output Current
Typ Max Min
2.78 2.86 0.1
2.78 2.86 0.1
2.78 2.86 0.1
1.35 1.366 -
1.8 1.88 0.005
0.005
1.8 1.855 0.005
3.0 3.09 0.005
2.78 2.86 0.005
1.053 1.106 0.005
1.3 1.365 0.005
1.5 1.575 0.005
1.8 1.890 0.005
1.053 1.132 70
1.3 1.365 85
1.5 1.575 100
1.8 1.890 120
2.78 2.86 0.005
0.005
2.78 2.86 0.005
RH-6
(mA)
Max
50
0.1
50
0.1
45
0.1
150
0.500
25
0.500
80
70
85
100
120
200
200
200
200
70
1.5
40
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