Baseband Calibration; Bb Calibration Limits - Nokia RH-6 Series Baseband Description & Troubleshooting

CCS Technical Documentation

Baseband Calibration

Calibration for RH-6 must be done in LOCAL-mode.
Dispersion in UEM AD-converters and external components must be compensated.
ADC-converter calibration is made with two different calibration points.
• Connected 0.7V to BSI line -> read AD-converter value.
• Connected 2.1V to BSI line -> read AD-converter value.
• SAVE VALUE to PMM (Permanent Memory) area.
BSI calibration is made in order to get correct battery information.
• Set to BSI line 1% 75kohm resistor -> read AD-converter value.
• SAVE VALUE to PMM (Permanent Memory) area.
VBATT calibration is made in order to get correct battery voltage.
• Set to VBATT line 3.1V and 4.2V -> read AD-converter value.
• SAVE VALUE to PMM (Permanent Memory) area.
VCHARGE calibration is made in order to get charger types and charger voltages correct.
• Connect 8.4V to charger line -> read AD-converter value.
• SAVE VALUE to PMM (Permanent Memory) area.
Charge current calibration is made order to get correct charge current.
• Connect 500mA to charger line -> read AD-converter value.
Calibration is easiest done by using JBV-1 box in conjunction with Phoenix Service SW.

BB calibration limits

AD channel
ADC OFFSET
ADC GAIN
BSI GAIN
BTEM GAIN
BTEM GAIN (No calibration) 2127
VBAT SCAL OFFSET
VBAT SCAL
VCHAR
ICHAR GAIN
Issue 1 10/2003
Company Confidential
6 - BB Description & Troubleshooting
Table 24: BB calibration limits
Min
-50
25400
860
1980
2300
10000
58000
3850
© 2003 Nokia Corporation.
Max
50
29000
1180
2280
2127
2700
11000
62000
4650
RH-6
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