LNBH23 STMicroelectronics, LNBH23 Datasheet - Page 4

• Manufacturer Part Number: LNBH23
• Description: LNBs supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

Specifications of LNBH23

• Single Input Supply Voltage: from 8 V to 15 V

Block diagram
1
Figure 1.
4/32
VCTRL
VCTRL
P-GND
P-GND
DSQIN
DSQIN
EXTM
EXTM
VoRX
VoRX
VoTX
VoTX
Vup
Vup
LX
LX
Block diagram
Block diagram
Rsense
Rsense
TTX
TTX
TTX
VSEL
VSEL
EN
EN
Linear Post-reg
Linear Post-reg
+Modulator
+Modulator
+Protections
+Protections
+Diagnostics
+Diagnostics
ISEL
ISEL
22KHz
22KHz
22KHz
Oscill.
Oscill.
Oscill.
Doc ID 13356 Rev 7
TTX
TTX
LNBH23
LNBH23
VOUT Control
VOUT Control
A-GND
A-GND
VSEL
VSEL
ITEST
ITEST
TTX
TTX
ADDR
ADDR
TEN
TEN
I²C Diagnostics
I²C Diagnostics
SDA SCL
SDA SCL
I²C interface
I²C interface
22KHz Tone
22KHz Tone
Amp. Diagn.
Amp. Diagn.
22KHz Tone
22KHz Tone
Freq. Detector
Freq. Detector
Vcc
Vcc
Vcc
Preregulator
Preregulator
+U.V.lockout
+U.V.lockout
+P.ON reset
+P.ON reset
Byp
Byp
Byp
EN
EN
Vcc-
Vcc-
Vcc-
L
L
L
DSQOUT
DSQOUT
DETIN
DETIN
LNBH23