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LNBH23L Datasheet(PDF) 11 Page - STMicroelectronics

Part # LNBH23L
Description  Selectable output current limit by external resistor
PDF  25 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH23L Datasheet(HTML) 11 Page - STMicroelectronics

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LNBH23L
Typical application circuit
Doc ID 15335 Rev 4
11/25
5
Typical application circuit
Figure 3.
DiSEqC 1.x using internal 22 kHz tone generator
D3
L1
C6
470nF
Vin
12V
to LNB
500mA max
D2
{
I2C Bus
SDA
SCL
PDC
LX
Vup
Vcc-L
Vcc
VoRX
EXTM
ADDR
C1
C8
220nF
LNBH23L
TTX
P-GND
A-GND
D1
C10
220nF
C4
470nF
VoTX
ISEL
R2 (RSEL)
15kOhm
Byp
C11
220nF
DSQIN
C15
47nF
R9
1.5KOhm
C3
Tone Enable control
TTL
D3
D3
L1
C6
470nF
Vin
12V
to LNB
500mA max
D2
D2
{
I2C Bus
SDA
SCL
PDC
LX
Vup
Vcc-L
Vcc
VoRX
EXTM
ADDR
C1
C8
220nF
C8
220nF
LNBH23L
TTX
P-GND
A-GND
P-GND
A-GND
D1
D1
C10
220nF
C10
220nF
C4
470nF
C4
470nF
VoTX
ISEL
R2 (RSEL)
15kOhm
R2 (RSEL)
15kOhm
Byp
C11
220nF
Byp
C11
220nF
C11
220nF
DSQIN
C15
47nF
R9
1.5KOhm
R9
1.5KOhm
C3
C3
C3
Tone Enable control
TTL
Tone Enable control
TTL
Figure 4.
DiSEqC 1.x using internal 22 kHz tone generator and "optional" PDC circuit
D3
L1
C6
470nF
Vin
12V
to LNB
500mA max
D2
{
I2C Bus
SDA
SCL
PDC
LX
Vup
Vcc-L
Vcc
VoRX
EXTM
ADDR
C1
C8
220nF
LNBH23L
TTX
P-GND
A-GND
D1
C10
220nF
C4
470nF
VoTX
ISEL
R2 (RSEL)
15kOhm
Byp
C11
220nF
DSQIN
C15
47nF
R9
1.5KOhm
C3
Tone Enable control
TTL
Diode
1N4148
*R7
22 Ohm
*C14
1nF
(*) OPTIONAL components.
To be used only in case
of heavy capacitive load
*R5
2.2K Ohm
3.3V
*TR1
*R8
150 Ohm
D3
D3
L1
C6
470nF
Vin
12V
to LNB
500mA max
D2
D2
{
I2C Bus
SDA
SCL
PDC
LX
Vup
Vcc-L
Vcc
VoRX
EXTM
ADDR
C1
C8
220nF
C8
220nF
LNBH23L
TTX
P-GND
A-GND
P-GND
A-GND
D1
D1
C10
220nF
C10
220nF
C4
470nF
C4
470nF
VoTX
ISEL
R2 (RSEL)
15kOhm
R2 (RSEL)
15kOhm
Byp
C11
220nF
Byp
C11
220nF
C11
220nF
DSQIN
C15
47nF
R9
1.5KOhm
R9
1.5KOhm
C3
C3
C3
Tone Enable control
TTL
Tone Enable control
TTL
Diode
1N4148
*R7
22 Ohm
*C14
1nF
(*) OPTIONAL components.
To be used only in case
of heavy capacitive load
*R5
2.2K Ohm
3.3V
*TR1
*R8
150 Ohm



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