User Guide

Signal From To Parameter Min Typ Max Unit Function
RXIP RFIC RAP Amplitude 1.5 Vpp
Differentia
l analog
RXI signal
to
baseband
RXIN RX_OUT
_PI
RXIP Common
mode voltage
0.7 0.75 0.8 V
RX_OUT
_NI
RXIN Load
impedance
1 MW
RXQP RFIC RAP See RXIP/RXIN for parameters Differentia
l analog
RXQ signal
to
baseband
RXQN RX_OUT
_PQ
RXQP
RX_OUT
_NQ
RXQN
TXIP RAP RFIC Amplitude 0 127.5 uApp Current
mode TX
baseband
signals
TXIN TXI_0 Common
mode current
63.75 uA
TXI_1
80
Common
mode voltage
0.625 0.7 V
TXQP RAP RFIC See TXIP/TXIN for parameters Current
mode TX
baseband
signals
TXQN TXQ_0
TXQ_1
80
Note: External modules are required to include a DC-blocking capacitor in the signal line or the DC-
blocking capacitor must be added outside the Rits 4.5 re-use engine area. It is recommended to use
the external clock buffer between the re-use engine and the external modules.
Note: In RITSA 4 RF inside AHNE there’s a RC low pass circuit of12kΩ + 100pF in the TXC line.
External interfaces
Name of Connection Connector reference
Charger X2002
SIM X2700
Micro SD X3200
Battery connector X2070
Pop-Port™ X2000
System connector
System connector provides a fully differential 4–wire stereo line-level output connection and fully differential
2-wire mono line-level or microphone level input connection.
The handsfree driver in EM ASIC (N2200) is meant for the headset.
The output is driven in a fully differential mode. In the fully differential mode, the handsfree pin is the
negative output and the HFCM pin is the positive output. The gain of the handsfree driver in the differential
mode is 6 dB.
RM-170; RM-171
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