Dual Lnb Supply And Control Ic With Step-up And I2c Interface

Part No :
LNBH24 pinout
File Size : 56 KB
Pages : 30 Pages

Other Part Numbers in this pdf file

LNBH24PPR  
STMicroelectronics

find LNBH24 datasheet
LNBH24 pinout,LNBH24 pin diagram
LNBH24
Pin configuration
3
Figure 3.
Pin configuration
Pin connections
A-GND
TTX-B
DETIN-B
DSQIN-B
DSQOUT-B
ADDR-B
NC
LX-B
P-GND-B
P-GND-A
LX-A
SDA
SCL
ADDR-A
DSQOUT-A
DSQIN-A
DETIN-A
TTX-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
EXTM-B
VCTRL-B
ISEL-B
VUP-B
VOTX-B
VORX-B
A-GND
VCC
VCC-L
BYP
VORX-A
VOTX-A
NC
NC
VUP-A
ISEL-A
VCTRL-A
EXTM-A
Table 2.
Pin n°
(sec. A/B)
29
28
11
8
22
33
26
31
25
32
12
13
16
4
Pin description
Symbol
V
CC
V
CC–
L
LX-A
N-MOS Drain
LX-B
V
UP
-A
Step-up voltage
V
UP
-B
V
oRX
-A
V
oRX
-B
V
oTX
-A
V
oTX
-B
SDA
SCL
DSQIN-A
DiSEqC inputs
DSQIN-B
LDO output port
Input of the linear post-regulators. The voltage on these pins is
monitored by the internal Step-up controllers to keep a
minimum dropout across the linear pass Transistors
Outputs of the linear post-regulators. See
Table 6
for voltage
selections and description.
Integrated N-Channel Power MOSFETs drain.
Name
Supply input
Supply input
Function
8 to 15 V IC DC-DC power supply.
8 to 15 V analog power supply.
Output port during
TX Outputs to the LNB. See
Table 6
for selection.
22 kHz Tone TX
Serial data
Serial clock
Bi-directional data from / to I
2
C BUS.
Clock from I
2
C BUS.
These pins will accept the DiSEqC code from the main
Microcontroller The LNBH24 will uses this code to modulate
the internally-generated 22 kHz carrier. Set to ground if not
used.
9/30