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J Plus, Inc
2.7
RF Block Description
JLT733A is based on LTE TDD technology consisting of downlink and uplink transmitted through different
frequencies. Explanation for each path is described below:
Figure 4: RF Block Diagram
A. Downlink (Tx)
RF signal from transceiver enters Power AMP module through BALUN and a Filter. In Power AMP module,
the signal is generated as the maximum level and this signal is transmitted via ANT after passing Filter (out
of band’s noise removal)
B. Uplink (Rx)
The RF signal from ANT enters filter (out of band’s noise removal) and then enters Power AMP module.
This signal is amplified via LNA and then enters Transceiver via a Filter and BALUN.
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