Bb-Rf Interface; Digital Signals Between Bb And Rf; Analog Signals Between Bb And Rf - Nokia RH-6 Series Baseband Description & Troubleshooting

RH-6
6 - BB Description & Troubleshooting

BB-RF Interface

The below table describes all the signals from the baseband block to the RF block and
back. The signal names are based on the schematics.

Digital signals between BB and RF

For the digital interfaces UPP and Mjoelner use only level shifting IO. Level shifters of
both are supplied with VIO from UEM. VIO limits are specified in chapter 0 and have been
used to calculate the limits below (because VIO
V and not the limit from UPP which would have been 1.26V).
DDSmin
Values are refenced to GND unless otherwise specified.
Signal name From
RFICCNTRL (2:0)
RFBUSEN1 UPP
RFICCNTRL(2) RFBUSEN1X
RFBUSDA UPP
RFICCNTRL(1) RFBUSDA
RFBUSDA UPP
RFICCNTRL(1) RFBUSDA
RFBUSCLK UPP
RFICCNTRL(0) RFBUSCLK
GENIO (28:0)
TXP UPP
GENIO(5) GENIO5
RESET UPP
GENIO(6) GENIO6

Analog signals between BB and RF

The values indicated in the table below are input requirements of the device in the "to
column" when nothing else is stated. Values are refenced to GND unless other wise spec-
Page 32
Company Confidential
Table 14: RF-BB Interface Digital Signals
To Parameter
Mjoelner control bus
Mjoelner
Logic "1" Mjoelner input
UPP output
RFBUSENX
Logic "0" Mjoelner input
UPP output
Mjoelner
Logic "1" Mjoelner input
UPP output
RFBUSDA
Mjoelner output
UPP input
Mjoelner
Logic "0" Mjoelner input
UPP output
RFBUSDA
Mjoelner output
UPP input
Mjoelner
Logic "1" Mjoelner input
RFBUSCLK
UPP output
Logic "0" Mjoelner input
UPP output
Clock Speed
General purpose I/O
Mjoelner
Logic "1" Mjoelner input
TXP
UPP output
Logic "0" Mjoelner input
UPP output
Mjoelner
Logic "1" Mjoelner input
RESET
UPP output
Logic "0" Mjoelner input
UPP output
© 2003 Nokia Corporation.
CCS Technical Documentation
is 1.72V this was used for UPP
min
Min Typ Max Unit
1.22
1.37 1.88
0 0.4
0 0.40
1.22
1.37 1.88
1.32
1.32 1.88
0 0.4
0 0.40
0 0.4
0 0.51
1.22
1.37 1.88
0 0.4
0 0.40
13
1.22
1.37 1.88
0 0.4
0 0.40
1.22
1.37 1.88
0 0.4
0 0.40
Notes
V RF Chip select.
V Active Low
V
V
V RF serial data.
V (bi-directional)
V
V
V RF serial data.
V (bi-directional)
V
V
V RF bus clock.
V
V
V
MHz
V Transmitter
power control
V
enable.
V
V
V Reset to RF
chip.
V
Active low.
V
V
Issue 1 10/2003