User Guide

PAMS
Technical Documentation
NSE–8/9
System Module
Page 2– 28
Issue 1 07/99
Table 18. AC and DC Characteristics of signals between Baseband and RF (continued)
FunctionUnitMaxi-
mum
Typi-
cal
Mini-
mum
ParameterFrom
To
Signal
name
TXC COBBA_GJP
Voltage Min 0.12 0.18 V
Transmitter power con-
tl
SUMMA
Voltage Max 2.27 2.33 V
trol
Vout tempera-
ture dependence
10 LSB
Source imped-
ance
active state
200 ohm
Source imped-
ance
power down
state
high Z
Input resistance 10 kohm
Input capaci-
tance
10 pF
Settling time 10 us
Noise level 500 uVrms 0...200 kHz
Resolution 10 bits
DNL +/–0.9 LSB
INL +/– 4 LSB
Timing inaccura-
cy
1 us
TXIN /
TXIP
COBBA_GJP
SUMMA
Differential volt-
age swing
1.022 1.1 1.18 Vpp
Differential in–phase TX
Baseband signal for the
RF dlt
DC level 0.784 0.8 0.816 V
RF
mo
d
u
l
ator
Differential offset
voltage (cor-
rected)
+/–
2.0
mV
Diff. offset volt-
age temp. de-
pendence
+/–
1.0
mV
Source imped-
ance
200 ohm
Load resistance 40 kohm
Load capaci-
tance
10 pF
DNL +/–
0.9
LSB
INL +/–1 LSB
Group delay mis-
smatch
100 ns