User Guide
Signal From To Parameter Min Typ Max Unit Function
VREFRF0
1
EM ASIC
(N2200)
RFIC Voltage 1.325 1.35 1.375 V
Voltage
reference
for RFIC
Vref VBEXT Current 100 µA
Noise
voltage
30 µVrms 1 kHz 100
kHz
DAC_REF
1
RFIC RAP Current 24 32 40 µA Temp/
process
dependent
ref current
for TXIQ
DACs in RAP
DAC_REF1 Iref1 DC voltage 1 V
VREFCM RFIC RAP Voltage 0.7 0.75 0.8 V Reference
voltages for
RX ADCs in
RAP
VREFCM VrefP
Note: The minimum voltage is the battery voltage, which has to be available for the RF circuitry all
the time during operation. The voltage drop caused by losses (PCB tracks, filtering and internal
resistance of the battery) has to be added to this figure. The maximum voltage is the absolute max
figure.
Digital signals
Signal From To Parameter Min Typ Max Unit Function
TXRESET
X
RAP RFIC Logic high
"1"
1.38 1.88 V RFIC xreset
TXReset XRESET Logic low
"0"
0 0.4 V
Load
resistance
10 KW
Load
capacitanc
e
20 pF
Timing
accuracy
¼ symb
RM-170; RM-171
System Module Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 9 –23
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