ML7436N LSI Hardware Design Manual
FEXL7436NDG-01
12
shows the RF matching circuit configurations. The reception circuit is T-type configuration and composed
of two chip capacitors and a chip coil. SAW(Surface Acoustic wave) filter is adopted to remove the interfering wave. At
the transmission circuit, DC voltage is biased at RF_REG_PA(#32) pin through the choke coil of RF_PA_OUT1(#33)
pin. It composes LPF
（
Low Pass Filter
）
and the trap filter to suppress the higher harmonics. The transmission and
reception lines connect antenna through the antenna switch IC to switch the transmission and reception.
Figure 7.1
RF matching circuit configurations
*Thich line: 50Ω
