User Guide

PAMS
Technical Documentation
NME–3
Technical Information
Page 24
Issue 1 10/99
Table 11. AC and DC Characteristics of RF baseband signals (continued)
FunctionUnitMaxi-
mum
Typi-
cal
Mini-
mum
ParameterToFromSignal
name
PDATA0 MAD LNA
Logic high ”1” 2.0 2.85 V Nominal gain in LNA
Logic low ”0” 0 0.8 V Reduced gain in LNA
Current 0.1 mA
SENA MAD PLUSSA
Logic high ”1” 2.0 2.85 V
PLL enable
Logic low ”0” 0 0.8 V
Current 50 uA
Load capacitance 10 pF
SDATA MAD PLUSSA
Logic high ”1” 2.0 2.85 V
Synthesizer data
Logic low ”0” 0 0.8 V
Load impedance 10 kohm
Load capacitance 10 pF
Data rate frequency 3.25 MHz
Databits S10–S14 10101
SCLK MAD PLUSSA
Logic high ”1” 2.0 2.85 V
Synthesizer clock
Logic low ”0” 0 0.8 V
Load impedance 10 kohm
Load capacitance 10 pF
Data rate frequency 3.25 MHz
AFC COBBA VCTCXO
Voltage 0.046 2.254 V
Automatic frequency
tli lf
Resolution 11 bits
control signal
f
or
V
C(
T
C)
X
O
Load resistance
(dynamic)
10 kohm
VC(TC)XO
Load resistance
(static)
1 Mohm
Noise voltage 500 uVrms
10...10000Hz
Settling time 0.5 ms
RFC VCTCXO MAD
Frequency 13 MHz
High stability clock sig-
l f th l i i
Signal amplitude 0.5 1.0 2.0 Vpp
nal
f
or the logic cir-
cu
i
ts
Load resistance 10 kohm
cuits
Load capacitance 10 pF
RXIP/
RXIN
PLUSSA COBBA
Output level 50 1344 mVpp
Differential RX 13 MHz
iltbbd
RXIN
Source impedance tbd. ohm
signal to baseband
Load resistance 1 Mohm
Load capacitance tbd. pF