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LNBH26S Datasheet(PDF) 18 Page - STMicroelectronics

Part # LNBH26S
Description  Dual LNBS supply and control I2C with step-up and IC interface
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH26S Datasheet(HTML) 18 Page - STMicroelectronics

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Table 6. DATA 1 (read/write register. Register address = 0X2)
Bit
Name
CH
Value
Description
Bit 0 (LSB)
VSEL1-A
A
0/1
Channel A
Output voltage selection bits
Bit 1
VSEL2-A
0/1
Bit 2
VSEL3-A
0/1
Bit 3
VSEL4-A
0/1
Bit 4
VSEL1-B
B
0/1
Channel B
Output voltage selection bits
Bit 5
VSEL2-B
0/1
Bit 6
VSEL3-B
0/1
Bit 7
VSEL4-B
0/1
Table 7. DATA 2 (read/write register. Register address = 0X3)
Bit
Name
CH
Value
Description
Bit 0 (LSB)
TEN-A
A
1
22 kHz tone enabled. Tone output controlled by the DSQIN
pin
0
22 kHz tone output disabled
Bit 1
LPM-A
1
Low power mode activated (used only with 22 kHz tone
output disabled)
0
Low power mode deactivated (keep always LPM=0 during
22 kHz tone transmission)
Bit 2
EXTM-A
1
DSQIN input pin is set to receive external 22 kHz TTL
signal source
0
DSQIN input pin is set to receive external DiSEqC
envelope TTL signal
Bit 3
N/A
0
Reserved. Keep to “0”
Bit 4
TEN-B
B
1
22 kHz tone enabled. Tone output controlled by the DSQIN
pin
0
22 kHz tone output disabled
Bit 5
LPM-B
1
Low power mode activated (used only with 22 kHz tone
output disabled)
0
Low power mode deactivated (keep always LPM=0 during
22 kHz tone transmission)
Bit 6
EXTM-B
1
DSQIN input pin is set to receive external 22 kHz TTL
signal source
0
DSQIN input pin is set to receive external DiSEqC
envelope TTL signal
Bit 7 (MSB)
N/A
0
Reserved. Keep to “0”
LNBH26S
Data registers
DS8975 - Rev 5
page 18/35



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