LNBK20D2 STMicroelectronics, LNBK20D2 Datasheet - Page 9

• Manufacturer Part Number: LNBK20D2
• Description: LNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
• Manufacturer: STMicroelectronics

Figure 19 : Enable Time
Figure 20 : Disable Time
TYPICAL APPLICATION SCHEMATICS
TWO ANTENNA PORTS RECEIVER
AUX DATA
AUX DATA
MCU+V
MCU+V
Vcc
Vcc
47K
47K
R1
R1
C2
C2
I/Os
I/Os
10uF
10uF
11
11
13
13
12
12
4
4
9
9
5
5
7
7
EXTM
EXTM
OLF
OLF
VSEL
VSEL
ENT
ENT
EN
EN
OSEL
OSEL
LLC
LLC
LNBK20
LNBK20
VCC1
VCC1
VCC2
VCC2
LNBA
LNBA
LNBB
LNBB
CEXT
CEXT
GND
GND
MI
MI
1
1
2
2
3
3
15
15
14
14
10
10
8
8
4.7µF
4.7µF
MCU
MCU
C1
C1
+
17V
17V
2x 0.1µF
2x 0.1µF
Figure 21 : 18V to 13V Change
Figure 22 : 18V to 13V Change
C3
C3
C4
C4
2x 47nF
2x 47nF
24V
24V
C5
C5
C6
C6
TUNER
TUNER
I/Os
I/Os
ANT CONNECTORS
ANT CONNECTORS
LNBK20D2
JA
JA
JB
JB
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