Nokia NSE-6 SERIES Service Manual page 70

NSE–6
System Module
Signal From To
name
TX MAD CCONT
PWR
VREF CCON SUMMA
T
PDA- MAD CRFU_1
TA0 a
SENA1 MAD SUMMA
SDATA MAD SUMMA
SCLK MAD SUMMA
AFC COB- VCTCX
BA O
RFC VCTCX MAD
O
RXIP/ SUM- COBBA
RXIN MA
TXIP/ COB- SUMMA
TXIN BA
TXQP/ COB- SUMMA
TXQN BA
TXP MAD SUMMA
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Parameter Mini-
mum
Logic high "1" 2.0
Logic low "0" 0
Voltage 1.478 1.5
Logic high "1" 2.0
Logic low "0" 0
Logic high "1" 2.0
Logic low "0" 0
Logic high "1" 2.0
Logic low "0" 0
Logic high "1" 2.0
Logic low "0" 0
Voltage 0.046
Frequency
Signal amplitude 0.5
Output level
Differential voltage 0.75
swing x
1.022
DC level 0.784 0.8
Differential voltage 0.75
swing x
1.022
DC level 0.784 0.8
Logic high "1" 2.0
Logic low "0" 0
Technical Documentation
Typi- Maxi- Unit
cal mum
2.85 V VR7 in CCONT
ON
0.8 V VR7 in CCONT
OFF
1.523 V Reference voltage
for SUMMA and
CRFU1a
2.85 V Nominal gain in
LNA
0.8 V Reduced gain in
LNA
2.85 V PLL enable
0.8 V
2.85 V Synthesizer data
0.8 V
2.85 V Synthesizer clock
0.8 V
2.254 V Automatic fre-
quency control
signal for
VC(TC)XO
13 MHz High stability clock
signal for the logic
1.0 2.0 Vpp
circuits
50 1344 mVp Differential RX 13
p MHz signal to
baseband
0.75 x 0.75 x Vpp Differential in–
1.1 1.18 phase TX base-
band signal for the
RF modulator
0.816 V
0.75 x 0.75 x Vpp
Differential quad-
1.1 1.18 rature phase TX
baseband signal
for the RF modu-
0.816 V
lator
2.85 V Transmitter power
control enable
0.8 V
Original 08/98
PAMS
Function