In WCDMA mode, the voltage levels should be:
•
0.4…0.8 V @ Start level 0 dBm
•
0.8…1.3 V @ Start level 10 dBm
•
3.0…4.2 V @ Start level 24 dBm
In GSM mode, the voltage levels should be:
•
0.1…0.5 V @ GSM 900 & Tx Power Level 19
•
0.5…1.1 V @ GSM 900 & Tx Power Level 12
•
3.5…4.3 V @ GSM 900 & Tx Power Level 5
Note:
The VPA signal is continuously on when WCDMA TX is activated, but has a pulsed nature in
GSM TX mode (the signal is on only when a GSM TX burst is transmitted).
Note:
The VPA signal is not tested by ST_CDSP_RF_SUPPLY_TEST.
RM-609
Cellular RF troubleshooting
Issue 1
COMPANY CONFIDENTIAL
Page 4 – 19
Copyright © 2011 Nokia. All rights reserved.