LNBH21PD STMicroelectronics, LNBH21PD Datasheet - Page 7
LNBH21PD
Manufacturer Part Number
LNBH21PD
Description
IC LNB SUPPLY & CNTRL 20-PWRSOIC
Manufacturer
STMicroelectronics
Datasheet
1.LNBH21PD-TR.pdf
(20 pages)
Specifications of LNBH21PD
Applications
Converter, Analog and Digital Satellite STB Receivers/SatTV
Voltage - Input
8 ~ 15 V
Number Of Outputs
1
Voltage - Output
13.3V, 18V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
PowerSO-20 Exposed Bottom Pad
Output Voltage
18.7 V
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LNBH21PD
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
LNBH21PDT
Manufacturer:
INTER
Quantity:
5
Figure 2 : TIMING DIAGRAM ON I
Figure 3 : ACKNOWLEDGE ON I
LNBH21 SOFTWARE DESCRIPTION
INTERFACE PROTOCOL
The interface protocol comprises:
- A start condition (S)
- A chip address byte = hex 10 / 11 (the LSB bit determines read(=1)/write(=0) transmission)
- A sequence of data (1 byte + acknowledge)
- A stop condition (P)
ACK= Acknowledge; S = Start ; P = Stop; R/W = Read/Write
SYSTEM REGISTER (SR, 1 BYTE)
R,W = read and write bit; R = Read-only bit
All bits reset to 0 at Power-On
S
R, W
MSB
PCL
MSB
0
0
R, W
0
TTX
CHIP ADDRESS
1
0
R, W
TEN
0
2
C BUS
2
C BUS
0
LSB
R/W ACK
R, W
LLC
MSB
VSEL
R, W
R, W
EN
DATA
OTF
R
LSB
LNBH21
ACK
LSB
OLF
R
7/20
P