User Guide

PAMS
Technical Documentation
NSE–8/9
System Module
Page 2– 26
Issue 1 07/99
Table 18. AC and DC Characteristics of signals between Baseband and RF
Signal
name
From
To
Parameter Mini-
mum
Typi-
cal
Maxi-
mum
Unit Function
VRX_1 CCONT VR2
CRFU3
DC–voltage 2.67 2.8 2.85 V
for Rx part of CRFU
C
RFU3
voltage ripple
when on
10 15 mVpp
VRX_2 CCONT VR5
SUMMA
DC–voltage 2.67 2.8 2.85 V
for Rx part of Summa
S
UMMA
voltage ripple
when on
5 15 mVpp
VSYN_2 CCONT VR4
VCO’
DC–voltage 2.67 2.8 2.85 V
for VCO’s & Synth. i
S
V
CO
’s
voltage ripple 5 mVpp
S
umma
VXO CCONT VR1
VCTCXO
DC–voltage 2.67 2.8 2.85 V
for 13 MHz oscillator
V
C
T
C
X
O
voltage ripple 5 15 mVpp
VTX CCONT VR7
CRFU3
DC–voltage 2.67 2.8 2.85 V
for Tx in Summa &
CRFU
C
RFU3
Current 150 mA
C
RFU
voltage ripple
when on
5 15 mVpp
VCP CCONT V5V
SUMMA
DC–voltage 4.8 5.0 5.2
for Summa
S
UMMA
Current 30 –
Isim
mA
voltage ripple 10 25 mVpp
VREF CCONT
DC–Voltage 1.478 1.5 1.523 V
Reference voltage for
SUMMA
SUMMA
Current 100 uA
S
UMMA
voltage ripple 5 10 mVpp
Vdc_out DC/DC–con-
verter output
to
RF PA’s
DC–Voltage
RF_TEM
P
RF
CCONT
voltage 0 1.5 V
P
CCO
NT
BB pull up to
Vref
–5% 47 +5 % Kohm
RF pull down to
gnd
47 Kohm
NTC
Ro = 47Kohm +/–10%
Bo = 4050 +/–3%
ADC resolution 10 bits