3. TECHNICAL BRIEF
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Only for training and service purposes
3.3 FEM with integrated Power Amplifier Module (SKY77550-21, U101)
3. TECHNICAL BRIEF
3.3.1 Internal Block Diagram
Figure. 3-3-1 SKY77550-21 FUNCTIONAL BLOCK DIAGRAM
3.3.2 General Description
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
Z[VX[^
TX_HB_IN(10)
VBATT (3)
VBATT (4)
VRAMP (16)
TxEN (18)
BS (1)
VSW_EN (11)
Tx_LB_IN (9)
HBT POWER AMPLIFIER
CURRENT SENSE
POWER AMPLIFIER
CONTROL
LOGIC DECODER
Match
Match
SKY77550-21
(1) RX
(6) ANT
(19) RX1
01643_001