User Guide

PAMS
Technical Documentation
NSE–8/9
System Module
Page 2– 29
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
TXQN /
TXQP
COBBA_GJP
SUMMA
Differential volt-
age swing
1.022 1.1 1.18 Vpp
Differential quadrature
phase TX Baseband
ilfthRFd
DC level 0.784 0.8 0.816 V
s
i
gna
l
f
or t
h
e
RF
mo
d
u-
lator
Differential offset
voltage (cor-
rected)
+/–
2.0
mV
lator
Diff. offset volt-
age temp. de-
pendence
+/–
1.0
mV
Source imped-
ance
200 ohm
Load resistance 40 kohm
Load capaci-
tance
10 pF
Resolution 8 bits
DNL +/–
0.9
LSB
INL +/–1 LSB
Group delay mis-
smatch
100 ns
RXIP/
RXIN
SUMMA
Output level 50 1344 mVpp
Differential RX 13 MHz
iltBbd
RXIN
COBBA_GJP
Source imped-
ance
tbd. ohm
signal to Baseband
Load resistance 1 Mohm
Load capaci-
tance
tbd. pF
SDATA MAD2PR1
Logic high ”1” 2.0 Vbb V
PLL data
SUMMA
Logic low ”0” 0 0.5 V
Load impedance 10 kohm
Load capaci-
tance
10 pF
Data rate fre-
quency
3.25 MHz