63
LC-32LE511
LC-40LE511
LC-40LE531
LC-32LE511
LC-40LE511
LC-40LE531
45
17.
LNB supply and control IC
ST LNBH23L
a) Key Features
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�������-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93%
@0.5 A)
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����������������������������������������������������������pecification
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����������������-in 22 kHz tone generator suits widely accepted standards
�����-drop post regulator and high efficiency step-up PWM with integrated power NMOS
allow low power losses
�������������������-temperature internal protections with I²C diagnostic bits
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����- 4 kV ESD tolerant on output power pins
Applications
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�����������������te receivers
Description
Intended for analog and digital satellite receivers, the LNBH23L is a monolithic voltage
regulator and interface IC, assembled in QFN32 5 x 5 specifically designed to provide the 13 /
18 V power supply and the 22 kHz tone signalling to the LNB down-converter in the antenna
dish or to the multi-switch box. In this application field, it offers a complete solution with
extremely low component count, low power dissipation together with simple design and I²C
standard interfacing.
Summary of Contents for LC-32LE511E
Page 38: ...38 LC 32LE511 LC 40LE511 LC 40LE531 21 c BCM3556 Block Diagram ...
Page 47: ...47 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE b Pinning ...
Page 58: ...58 LC 32LE511 LC 40LE511 LC 40LE531 b Block Diagram ...
Page 59: ...59 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE Figure 8 Pin Diagram ...
Page 76: ...76 LC 32LE511 LC 40LE511 LC 40LE531 57 Video Settings Audio Settings ...
Page 77: ...77 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE 58 Options 1 Menu Options 2 Menu ...
Page 78: ...78 LC 32LE511 LC 40LE511 LC 40LE531 59 Tuner Settings Menu Source Settings Menu ...
Page 101: ...101 LC 32LE511 LC 40LE511 LC 40LE531 24 PRINTED WIRING BOARD Main Unit PWB Top Side ...
Page 102: ...102 LC 32LE511 LC 40LE511 LC 40LE531 PRINTED WIRING BOARD Continued Main Unit PWB Bottom Side ...
Page 150: ...150 LC 32LE511 LC 40LE511 LC 40LE531 NOTES ...
Page 154: ...154 LC 32LE511 LC 40LE511 LC 40LE531 NOTES ...
Page 155: ...155 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE NOTES ...