Nokia NSW-6 Series Disassembly & Troubleshooting Instructions page 22

NSW-6
Disassembly & Troubleshooting
Signal From
name
RFC EROTUS COB-
RFCEN MAD
RSSI EROTUS CCONT/
TXIP/ COBBA
TXIN
TXQP/ COBBA
TXQN
TXP1 MAD
TXC COBBA
TXF EROTUS MAD
TXP2 MAD
TXA MAD
Page 22
To Parameter
Logic low "0"
Voltage/Fre-
BA_D quency
CCONT / Voltage
PENTA
regulator
Output level
COB-
BA_D
EROTUS Differential
voltage swing
(static)
Single ended
output level
EROTUS Same as
TXIP/TXIN
CCont Logic high "1"
Logic low "0"
EROTUS Number of
bits
Output volt-
age swing
Minimum
code output
level
Maximum
code output
level
Voltage
PENTA Logic high "1"
regulator
Logic low "0"
EROTUS Logic high "1"
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Min Typ Max
0 0.8
0.2 0.4 / 1.0
19.44
0 2.85
0.1 1.5
1.022 1.1 1.18
0.760 0.8 0.84
2.0
0.5
10
2.09 2.15 2.21
0.12 0.15 0.18
2.27 2.3 2.33
0 2.85
2.0
0.5
2.5
Unit Function
V
Vpp / Clock signal for
MHz the logic circuits
V "1" min 2.0 V
"0" max 0.4 V
V Analog mode
field strength in-
dicator
Vpp Differential in–
phase TX base-
band signal for
the RF modula-
tor
V
Differential quad-
rature phase TX
baseband signal
for the RF modu-
lator
V 1 Ghz Transmit-
ter enable
V VR7 ON/OFF
bits Transmitter pow-
er control (ramps
& power levels)
V
V
V
V False transmis-
sion indicator,
function con-
trolled via ERO-
TUS register
V 2 Ghz Transmit-
ter enable
V VR11 ON/OFF
V PWR control
loop during TX
burst (slow
mode)
Issue 1 12/99