lnbh23qtr STMicroelectronics, lnbh23qtr Datasheet - Page 4

• Manufacturer Part Number: lnbh23qtr
• Description: Lnbs Supply And Control Ic With Step-up And I??c Interface
• Manufacturer: STMicroelectronics

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Figure 1.
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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.
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