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LNBH24L Datasheet(PDF) 11 Page - STMicroelectronics

Part # LNBH24L
Description  Dual LNBS supply and control IC with step-up and I²C interface
PDF  25 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH24L Datasheet(HTML) 11 Page - STMicroelectronics

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LNBH24L
Application circuits
Doc ID 16857 Rev 2
11/25
5
Application circuits
Figure 3.
LNBH24L with internal tone for DiSEqC 1.X applications
D3
L1
Vin
12V
to LNB
500mA max
PDC
LX
Vup
VoRX
EXTM
C1
LNBH24L
(sections A/B)
P-GND
A-GND
D1
C10
220nF
Vcc-L
Vcc
C8
220nF
VoTX
ISEL
R2 (RSEL)
15kOhm
Byp
C11
220nF
EXTM
C15
47 nF
R9
2KOhm
D3
D3
L1
Vin
12V
to LNB
500mA max
D2
D2
D2
PDC
LX
Vup
VoRX
EXTM
C1
P-GND
A-GND
P-GND
A-GND
D1
D1
C10
220nF
C10
220nF
Vcc-L
Vcc
C8
220nF
Vcc-L
Vcc
C8
220nF
C8
220nF
C15
47 nF
R9
R9
C6
2.2µF
C6
C3
C3
C3
I2C Bus
SCL
ADDR
TTX
{
SDA
DSQIN
Tone Enable control
TTL
D4
D3
L1
Vin
12V
to LNB
500mA max
PDC
LX
Vup
VoRX
EXTM
C1
LNBH24L
(sections A/B)
P-GND
A-GND
D1
C10
220nF
Vcc-L
Vcc
C8
220nF
VoTX
ISEL
R2 (RSEL)
15kOhm
Byp
C11
220nF
EXTM
C15
47 nF
R9
2KOhm
D3
D3
L1
Vin
12V
to LNB
500mA max
D2
D2
D2
D2
D2
D2
PDC
LX
Vup
VoRX
EXTM
C1
P-GND
A-GND
P-GND
A-GND
D1
D1
C10
220nF
C10
220nF
Vcc-L
Vcc
C8
220nF
Vcc-L
Vcc
C8
220nF
C8
220nF
C15
47 nF
R9
R9
C6
2.2µF
C6
C3
C3
C3
C6
2.2µF
C6
C3
C3
C3
C3
C3
C3
I2C Bus
SCL
ADDR
TTX
{
SDA
I2C Bus
SCL
ADDR
TTX
{
SDA
DSQIN
Tone Enable control
TTL
DSQIN
Tone Enable control
TTL
D4
D4
Figure 4.
DiSEqC 1.x using external 22 kHz tone generator source through EXTM pin
L1
Vin
12V
to LNB
500mA max
D2
LX
Vup
VoRX
C1
P-GND
A-GND
D1
C10
220nF
VoTX
I
2C Bus
SCL
EXTM
ADDR
TTX
C15
220nF
22 kHz signal source
{
SDA
PDC
ISEL
R2 (RSEL)
15kOhm
Byp
C11
220nF
DSQIN
Vcc
C8
220nF
D3
-
C Bus
C8
220nF
Vcc- L
LNBH24L
(sections A/B)
C6
2.2µF
C3
---
µ
L1
Vin
12V
to LNB
500mA max
D2
LX
Vup
VoRX
C1
P-GND
A-GND
D1
C10
220nF
VoTX
I
2C Bus
SCL
EXTM
ADDR
TTX
C15
220nF
22 kHz signal source
{
SDA
PDC
ISEL
R2 (RSEL)
15kOhm
Byp
C11
220nF
DSQIN
Vcc
C8
220nF
D3
-
C Bus
C8
220nF
Vcc- L
LNBH24L
(sections A/B)
C6
2.2µF
C3
---
µ



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