Datasheet

LNBP20 / LNBP1X series Typical application schematics
15/24
Figure 27. Using serial bus to save MPU I/os
VCC1
1
VCC2
2
LNBA
3
LNBB
15
GND
8
LLC
12
EXTM
11
OSEL
7
EN
5
ENT
9
VSEL
4
OLF
13
MI
14
CEXT
10
LNBP20CR
C2
10uF
MCU+V
R1
47K
AUX DATA
STR
1
D
2
CLK
3
OE
15
Q1
4
Q2
5
Q3
6
Q4
7
Q5
14
Q6
13
Q7
12
Q8
11
QS
9
QS
10
4094
TUNER
JA
JB
ANT
CONNECTORS
C4 C6C5
2x 47nF
C3
2x 0.1µF
C1
4.7µF
MCU+V
SERIAL
BUS
MCU
I/Os Vcc
+
17V
24V
Figure 28. Two antenna ports receiver - low cost solution
JA
JB
ANT CONNECTORS
17V 24V
VCC1
1
VCC2
2
LNBA
3
LNBB
10
GND
6
CEXT
8
OSEL
9
EN
5
ENT
7
VSEL
4
LNBP10SP
C3
2x 0.1µF
C1
4.7µF
C4 C6C5
2x 47nF
TUNER
I/Os
MCU
MCU+V
I/OsVcc
+