Block Diagram
HFA3763
LPF_SEL1
LPF_SEL0
LPF_TUNE0
LPF_TUNE1
1.25V
2V
REF
LPF_TX_PE
LPF_TX_Q -
LPF_TX_Q +
LPF_TX_I -
LPF_TX_I +
MOD TX I +
MOD TX I -
MOD TX Q +
MOD TX Q -
MOD_TX_PE
MOD_TX_IF_OUT
IF_AGC_IN
VCC
250
AGC_CTRL
10K
VCC
L1
C1
(2XLO)
50Ω
MOD_LO_IN MOD_LO_OUT
L2
C2
50Ω
NETWORK
IF_OUT
OUTPUT MATCH COMPONENTS TABLE
FREQ. L1
C1
L2
C2
105MHz 270nH 12pF 82nH 15pF
280MHz 82nH 5.0pF 33nH 6.0pF
NOTE: VCC, GND and Bypass capacitors not shown.
4-3