Dc Characteristics; Power Distribution Diagram - Nokia RH-41 Series Technical Documentation Manual

RH-41
System Module
Rx Channel Centre Frequencies
TDMA1900 1930.05...1989 .99 MHz
Rx Channel Centre Frequencies
TDMA800 869.04...893 .97 MHz
Tx channel centre frequencies
TDMA800 824.01...848 .97 MHz
Tx channel centre frequencies
TDMA1900 1850.01...1909 .95 MHz
The RX intermediate frequency is the same on both operating bands. Due to the AMPS
mode, simultaneous reception and transmission, TX and RX IF frequencies are exactly
45 MHz apart. RXIF is 135.54 MHz and TXIF is 180.54 MHz. The RXIF frequency is set so
that it is not a multiple of either of VHF's comparison frequency (120k). In digital modes
(TDMA800/1900), RXIF frequency is also 135.54 MHz and TXIF is same (180.54MHz) with
all modes (TDMA800/1900).

DC Characteristics

Power Distribution Diagram

Note: The current values in the following figure are not absolute values and cannot be measured.
These values represent maximum/typical currents drawn by the corresponding RF or Taco blocks in
use, and are, therefore, dependent on the phone's operating mode and state.
Page 42
Rx IF
135.54 MHz
UHF
TDMA800 2009.16 MHz 2059.02 MHz
TDMA1900 RX: 2065.59 MHz
TDMA1900 TX: 2031.81 MHz
F
2
Tx IF
180.54 MHz
Figure 11: RF Frequency Block Plan
Nokia Corporation
CCS Technical Documentation
Rx IF
0 MHz
F
2
PLL
2125.53 MHz
2091.75 MHz
PLL
PLL
F
TDMA800 and1900: 361.08 MHz
2
Confidential
RX IQ
Rx VHF
271.08 MHz
VCTCXO
19.44 MHz
BaseBand
Tx VHF
TX IQ
Issue 2 09/2003