Nokia 3320 Manual Do Serviço
NPC-1
System Module
PAMS Technical Documentation
Page 50
ãNokia Corporation
Issue 1 10/01
0.2dB. The filtering performance of diplexer is taken in account in system calculations.
Signal levels
(For AMPS mode PL2 25.5 dBm, PL2 27.3 dBm for digital mode both bands)
Antenna Circuit
Here the antenna circuit stands for duplex filters and the diplexer. The cellular band
duplex filter is band pass type SAW filter with typical insertion loss about –2.0dB. The
insertion loss of the diplexer is-0.2 (max) and the typical value is about –0.1dB.
duplex filter is band pass type SAW filter with typical insertion loss about –2.0dB. The
insertion loss of the diplexer is-0.2 (max) and the typical value is about –0.1dB.
RF Performance
The output power tuning target for power level 2 after diplexer (or after switch for exter-
nal RF) is +27.3dBm for
nal RF) is +27.3dBm for
π
/4 DQPSK type of modulation and +25.5dBm for FM type of
modulation. Power levels downwards from PL2 are –4dB below next to highest power
level, PL10 being –4.7dBm (and PL7 +6.5dBm with FM type of modulation). Modulation
accuracy and ACP shall be within limits specified in IS-136/137.
level, PL10 being –4.7dBm (and PL7 +6.5dBm with FM type of modulation). Modulation
accuracy and ACP shall be within limits specified in IS-136/137.
Antenna
The NPC-1 antenna solution is an internal single resonance PIFA-antenna. In a single
band transceiver, a SMD compatible through chip can be used.
band transceiver, a SMD compatible through chip can be used.
Table 28: Typical Signal Levels
Power Level
PGA
Pout
2
3
25.5/27.3
3
5
-4dB
4
6
-4dB
5
7
-4dB
6
8
-4dB
7
9
-4dB
8
10
-4dB
9
11
-4dB
10
12
-4dB