Analogue Signals
Table 11 AC and DC Characteristics of RF-Base band Analogue Signals
Signal
name
From
To
Parameter
Min
Typ
Max
Unit
Function
RFCLK
VCTCXO
UPP
Frequency
13/26
MHz
System Clk from RF to
BB,
Signal
amplitude
0.2
0.8
1.32
Vpp
13/26 MHz Depending
on RF chipset
Input
Impedance
10
kW
UPP minimum
recommended
amplitude is 0.3Vpp.
Input
Capacitanc
e
10
pF
Harmonic
Content
-8
dBc
Clear signal
window
(no glitch)
200
mVpp
Duty Cycle
40
60
%
RFCLKGnd
VCTCXO
UPP
DC Level
0
V
System Clock slicer Ref
GND, not separated
from pwb GND layer
RXIP,
RXIN,
RXQP,
RXQN
RF-IC
UEMCL
ite
Voltage
swing
(static)
1.4
1.45
Vpp
Differential positive /
negative in-phase
and quadrature Rx
Signals.
DC level
1.3
1.35
1.4
V
I/Q
amplitude
mismatch
0.2
dB
I/Q phase
mismatch
-0.5
0.5
deg
TXIP,
TXIN,
TXQP,
TXQN
UEMCLit
e
RF-IC
Differential
voltage
swing
(static)
2.25
2.45
Vpp
Differential positive /
negative in-phase
and quadrature Tx
Signals
In High-Z when RX is
receiving.
DC level
1.17
1.20
1.23
V
Source
Impedance
200
W
RM-298; RM-299
System Module
Page 6 –14
COMPANY CONFIDENTIAL
Issue 1
Copyright © 2007 Nokia. All rights reserved.
