PBL40215 Просмотр технического описания (PDF) - Ericsson
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Компоненты Описание
производитель
PBL40215 Datasheet PDF : 22 Pages
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PBL 402 15
PA - Vcc
C14
C15
2.2nF
8pF
GND
L5 4.7nH
L6 4.7nH
C12 1pF
C16
10nF
MS lines 3
C13 1pF
C17
33pF
Vcc
+in +out
-in
-out
Gate
Consult PBL40309 for PA
output matching requirements
RxEN
TxEN ST CK
GND
D GATE
GND
GND
Can also be a balun type of solution
C10 8pF
C8 1pF
C0
6.8nF
R0
3.9k
Regulated supply Vcc
VccVCO
EN
REF
VccPLL
48
1
2
3
4
GND
5
CP
6
VccCP
7
C1
680 pF
NC
8
NC
9
C2
100nF
10
VTUNE
11
12
13
GND
47 46 45 44 43 42 41 40
PBL402 15
14 15 16 17 18 19 20 21
MOD
DTx
SHold
VccFM
Vcc
RSSI
C3
2nF
39 38 37
36
35
34
33
32
31
GND
L3
5.6nH
L4
C9
8.2nH
C11 8pF
1pF
L2 5.6nF
RF in to Rx
Feed from antenna switch.
( 50 ohms )
GND
MS lines 1
C4 11pF *
L0
180nH *
30
LD
29
VccIF
28
GND
C6 68pF *
27
L1
140nH *
26
C7 68pF *
25
22 23 24
PA Gate
GND
C5 11pF *
in
_+
IF - SAW filter
_+
out
MS lines 2
C18 22nF
* These components for matching are not needed if Murata filter is used
Figure 3. DECT application.
DRx DSL
Frequency
EUROPEAN DECT Band 1880 - 1900 MHz
TDMA ( time division multiple access )
Frequency and time division.
A-word
CNT_A
Frequency MHz
9
1
1881.792
8
2
1883.520
7
10 channels
6
Channel spacing
5
1.728 MHz
4
3
2
1
Channel 0
3
1885.248
4
1886.976
5
1888.704
6
1890.432
7
1892.160
Base to Mobile
Mobile to Base
8
1893.888
9
1895.616
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 time slots
1 slot = 416.67µs
Frame =10 ms
10
1897.344
each slot contains, a synchronisation field,
control info, data package and error control.
Time
Figure 4. The European DECT band .
2
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