User Guide

RH-20 Company confidential
System Module and User Interface CCS Technical Documentation
Page 16 Nokia Corporation. Issue 1 10/2003
Load Capacitance 20 pF
Timing Accuracy 1/4 symbol
TXA UPP Helgo ”1” 1.38 1.88 V Power con-
trol loop
enable
”0” 0 0.4 V
Load Resistance 10 220 kΩ
Load Capacitance 20 pF
Timing Accuracy 1/4 symbol
RFBusEna1X UPP Helgo ”1” 1.38 1.88 V RFbus ena-
ble
”0” 0 0.4 V
Current 50 µA
Load resistance 10 220 kΩ
Load capacitance 20 pF
RFBusData UPP Helgo ”1” 1.38 1.88 V RFbus
data; read/
write
”0” 0 0.4 V
Load resistance 10 220 kΩ
Load capacitance 20 pF
Data frequency 10 MHz
RFBusClk UPP Helgo ”1” 1.38 1.88 V RFBus
clock
”0” 0 0.4 V
Load resistance 10 220 kΩ
Load capacitance 20 pF
Data frequency 10 MHz
Mode Select
(GENIO9)
UPP Helgo ”1” 1.38 1.85 V Mode
Selection
”0” 0 0.4 V
RESET
(GENIO6)
UPP Helgo ”1” 1.38 1.85 V Reset to
Helgo
”0” 0 0.4 V
Load capacitance 20 pF
Load resistance 10 220 kΩ
Timing accuracy 1/4 symbol