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RF112 データシート(PDF) 21 Page - NXP Semiconductors

部品番号 RF112
部品情報  RF112 Transceiver Data Sheet
PDF  45 Pages
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メーカー  NXP [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo NXP - NXP Semiconductors

RF112 データシート(HTML) 21 Page - NXP Semiconductors

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Reconstr, filter
5th order, Butterworth
Ic = 10 to 40 MHz
Mixer
load
Driver
PA
HB LO I HB LO Q
HB
TXBB_IN_I_P
TX_HB_OUT
TXBB_IN_Q_P
TXBB_IN_Q_N
TXBB_IN_I_N
Mixer
load
TX
mixer
TX
mixer
Driver
PA
LB LO I LB LO Q
LB
TX_LB_OUT
Figure 8. Detailed block diagram of the transmit chains
3.4.1 Tx BB interface
The Tx BB input shall be connected to the DAC output in the baseband chip as shown in
figure below:
PCB
TRX
BB
DAC
ioutp
ioutn
agnd
TXBB_IN_I_P
TXBB_IN_I_N
Rdf
Rcm
Rdf
Figure 9. Tx BB interface
The DAC settings and external resistors Rdif and Rcm must be chosen to fulfill the TX
BB input common mode and input signal level requirements.
Electrical characteristics
RF112 Transceiver Data Sheet, Rev. 1 Draft B, 05/2024
NXP Semiconductors
21



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