Nokia NSW-5 Series Service Manual page 58

NSW-5
System Module UT5U
Signal From/
name Control
VR7_bias CCONT
/ 800MhZ
VMODE PA bias
control for
V5V CCONT EROTUS Voltage
/
RFCEN
RFTEMP RF CCONT
AFC Cob- VCTCXO Voltage Min
ba_D
AGC1 Cob- EROTUS Voltage Min
ba_D
AGC2 MAD RX LNA
(CTID
AGC2,
genpio)
IF2AP/ ERO- Cobba_D IF2 frequency
IF2AN TUS
Page 44
To Parameter
RF Logic high "1"
analog
mode
Current
Voltage
Resolution
Load resistance
(dynamic)
Load resistance
(DC)
Load resistance
Load capacitance
Resolution
Timing inaccuracy
Logic high "1"
Logic low "0"
Sink/source curr.
Load capacitance
Timing inaccuracy
Output level,
Load resistance
Load capacitance
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Min Typ Max Unit
tbd V
4.8 5.0 5.2 V
3.0 5.0 mA
0 1.5 V
0.05 1.2 2.25 V
11 bits
10 kΩ
110 kΩ
0.7 1.40 V
10 kΩ
10 pF
10 bits
8 us
2.0 V
0.5 V
10 100 uA
10 pF
8 us
450 kHz
0.2 V
pp
10 kΩ
5 pF
Issue 1 10/00
Function
800MHz PA bias volt-
age is increased to
improve analog mode
efficiency
Erotus and discrete
synthesizer phase det
RF temperature sen-
sor (47 k NTC to
GND)
Automatic frequency
control signal for
VCTCXO. When
DAC is switched
OFF AFC output is in
high–Z mode
Digital mode receiver
gain control.
DSP
LNA gain switch.
Polarity: 0=reduced
1=normal
DSP
Differential IF2–sig-
nal from limiter to
DEMO detector in
Cobba_D