Filter
Top Products
6. BLOCK DIAGRAM
- 139 -
Main RF signal
Control signal
Control signal Description Comment
UMTS PA_CTL signal
PA_R0
UMTS Tx High/Low Power Control
GSM PA_CTL signal
GSM_PA_BAND DCS or PCS /GSM Mode Selection
GSM_PA_EN Power Amp Gain Control Enable
GSM_PA_RAMP Power Amp Gain Control
ANT_SEL 0,1 Ant Switch Module Mode Selection
UMTS,
GSM900Tx/Rx,
DCS Tx/Rx,
PCS Tx/Rx