PMB-2240 Siemens, PMB-2240 Datasheet - Page 16

• Manufacturer Part Number: PMB-2240
• Description: GSM Transmitter
• Manufacturer: Siemens

26
27
28
* Design hint
** required by PMB2306 R19 = 6.8k
*** R19 at pin RREF/PLL gives constant PLL reference current at pin IREF/PLL:
Siemens AG
29 I-IX and Q-QX
30 Recommended
31 Reference voltage
32 Resistive load at
33 Input base current
34 Differential input
35 Differential input
36 Input frequency *
The reproduction, transmission or use of this document is not permitted without express written authority. Offenders will be liable for damages. All
differential input level
range for ext DC
voltage to compen-
sate internal offset at
I-IX and Q/QX *
External voltage
of current sink
fed to IREF/PLL
Current sourced
at IREF/PLL
Temperature
dependency of
current sourced
at IREF/PLL *
for I,Q modulating
inputs
TREF *
resistance *
capacitance *
rights, including rights created by patent grant or registration of a utility model or design, are reserved.
( R19 max = open
R19 min = 2 KOhm -> I
V IREF/PLL
I
I
IREF/PLL
IREF/PLL
I
V
R
V
V
I/Q_DC
f
V
R
C
Q-QX
DCext
f
TREF
Q-QX
TREF
I-IX
I-IX
I-IX
I-IX
,
1.25
50
3
1
-> I
IREF/PLL
IREF/PLL
16
100**
+-2
1.35
500
6
1
min = 0,
max = 360uA)
360
1.2
1000
1.45
15
12
10
kOhm
kOhm
mVpp
uA
MHz
%
V
mV
uA
pF
V
Reference to external
temperature range:
nominal current:
basebandcircuit to
resistor value at
RREF/PLL ***
dependent of
-30 to 85 °C
compensated)
(temperature
of PMB2240
bias I and Q
at 200 kHz
300uA
GMSK
05.97
1
1
1