LNBH24 STMicroelectronics, LNBH24 Datasheet - Page 4

• Manufacturer Part Number: LNBH24
• Description: Dual LNB supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

1
Figure 1.
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DSQOUT
DSQOUT
VCTRL - A
VCTRL - A
P-GND- A
P-GND- A
DSQIN - A
DSQIN - A
DETIN - A
DETIN - A
EXTM - A
EXTM - A
VoRX - A
VoRX - A
-
-
VoTX - A
VoTX - A
V
V
LX - A
LX - A
UP
UP
-
-
-
-
-
-
-
-
- A
-
- A
-
-
-
-
-
-
-
-
-
-
-
-
-
A
A
Block diagram
Block diagram
Rsense
Rsense
TTX-
TTX-
TTX-
TTX-
-
-
A
A
A
A
22KHz Tone
22KHz Tone
Amp. Diagn .
Amp. Diagn .
22KHz Tone
22KHz Tone
Freq. Det.
Freq. Det.
Det.
Det.
TTX- A
TTX- A
-
-
.
.
VSEL-
VSEL-
EN-
EN-
ISEL-
ISEL-
Linear Post -reg
Linear Post -reg
+Protections
+Protections
+Diagnostics
+Diagnostics
-
-
ISEL - A
ISEL - A
A
A
A
A
-
-
A
A
-
-
A
A
-
-
ITEST-
ITEST-
22KHz
22KHz
Oscill .
Oscill .
VOUT-
VOUT-
ADDR - A
ADDR - A
-
-
. .
. .
A
A
A
A
VSEL-
VSEL-
TEN-
TEN-
A
A
A
A
-
-
TEN-
TEN-
TTX-
TTX-
EN-
EN-
Control
Control
-
-
A
A
-
-
-
-
-
-
-
-
A
A
A
A
A
A
A
A
SDA SCL
SDA SCL
I²C Diagnostics
I²C Diagnostics
LNBH24
LNBH24
²
²
A-GND
A-GND
-
-
ADDR - B
ADDR - B
VOUT-
VOUT-
-
-
TEN-
TEN-
EN-
EN-
VSEL-
VSEL-
TTX-
TTX-
TEN-
TEN-
-
-
V
V
-
-
B
B
B
B
-
-
B
B
B
B
CC
CC
B
B
B
B
-
-
Preregulator
Preregulator
+U.V.lockout
+U.V.lockout
+P.ON reset
+P.ON reset
Control
Control
-
-
B
B
B
B
B
B
ITEST-
ITEST-
Linear Post -reg
Linear Post -reg
+Protections
+Protections
+Diagnostics
+Diagnostics
Oscill .
Oscill .
Byp
Byp
-
-
B
B
B
B
.
.
V
V
CC
CC
ISEL-
ISEL-
VSEL-
VSEL-
-
-
- L
-
- L
-
EN-
EN-
-
-
B
B
ISEL - B
ISEL - B
-
-
22KHz Tone
22KHz Tone
Amp. Diagn .
Amp. Diagn .
22KHz Tone
22KHz Tone
Freq. Det.
Freq. Det.
-
-
B
B
B
B
-
-
Det.
Det.
TTX- B
TTX- B
.
.
-
-
TTX-
TTX-
- -
- -
Rsense
Rsense
B
B
P-GND- B
P-GND- B
VCTRL - B
VCTRL - B
DSQOUT
DSQOUT
LX - B
LX - B
V
V
VoRX - B
VoRX - B
VoTX - B
VoTX - B
EXTM - B
EXTM - B
DSQIN - B
DSQIN - B
DETIN - B
DETIN - B
-
-
UP
UP
- B
-
- B
-
-
-
-
-
B
B
-
-
-
-
-
-
-
-
-
-
B
B