27
LC-32LE511
LC-40LE511
LC-40LE531
LC-32LE511
LC-40LE511
LC-40LE531
10
d. Pin Functions
C. SUBWOOFER AMPLIFIER STAGE (TPA3112)
a. General Description
The TPA3112D1 is a 25-W efficient, Class-D audio power amplifier for driving a bridge tied
speaker. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead
filters at the outputs while meeting EMC requirements. SpeakerGuard speaker protection
system includes an adjustable power limiter and a DC detection circuit. The adjustable power
limiter allows the user to set a "virtual" voltage rail lower than the chip supply to limit the
amount of current through the speaker. The DC detect circuit measures the frequency and
amplitude of the PWM signal and shuts off the output stage if the input capacitors are
damaged or shorts exist on the inputs. The TPA3112D1 can drive a mono speaker as low as
4����������������������������������������������� eliminates the need for an external heat
sink when playing music. The outputs are fully protected against shorts to GND, VCC, and
output-to-output. The short-circuit protection and thermal protection includes an auto-
recovery feature.
b. Features
• 25-W into an 8-���������������������������������������
• 20-W into an 4-�������at 10% THD+N From a12-V Supply
• 94% Efficient Class-D Operation into 8-������������������������������������
• Wide Supply Voltage Range Allows Operationfrom 8 to 26 V
• Filter-Free Operation
• SpeakerGuard™ Speaker Protection IncludesAdjustable Power Limiter plus DC Protection
• Flow Through Pin Out Facilitates Easy BoardLayout
• Robust Pin-to-Pin Short Circuit Protection andThermal Protection with Auto-Recovery
Option
• Excellent THD+N/ Pop Free Performance
• Four Selectable, Fixed Gain Settings
• Differential Inputs
Содержание LC-32LE511E
Страница 28: ...28 LC 32LE511 LC 40LE511 LC 40LE531 c Absolute Ratings d Recommended Operating Conditions e Pin Functions ...
Страница 31: ...31 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE FAIRCHILD FAN2110 U19 U20 a General Description ...
Страница 38: ...38 LC 32LE511 LC 40LE511 LC 40LE531 21 c BCM3556 Block Diagram ...
Страница 47: ...47 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE b Pinning ...
Страница 56: ...56 LC 32LE511 LC 40LE511 LC 40LE531 39 15 LOW POWER CEC MICROCONTROLLER NEC uPD78F0503 Pinning ...
Страница 58: ...58 LC 32LE511 LC 40LE511 LC 40LE531 b Block Diagram ...
Страница 59: ...59 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE Figure 8 Pin Diagram ...
Страница 76: ...76 LC 32LE511 LC 40LE511 LC 40LE531 57 Video Settings Audio Settings ...
Страница 77: ...77 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE 58 Options 1 Menu Options 2 Menu ...
Страница 78: ...78 LC 32LE511 LC 40LE511 LC 40LE531 59 Tuner Settings Menu Source Settings Menu ...
Страница 79: ...79 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE Diagnostic Menu 21 General Block Diagram ...
Страница 100: ...100 LC 32LE511 LC 40LE511 LC 40LE531 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I H G F E D C B A Power Supply Diagram ...
Страница 101: ...101 LC 32LE511 LC 40LE511 LC 40LE531 24 PRINTED WIRING BOARD Main Unit PWB Top Side ...
Страница 102: ...102 LC 32LE511 LC 40LE511 LC 40LE531 PRINTED WIRING BOARD Continued Main Unit PWB Bottom Side ...
Страница 150: ...150 LC 32LE511 LC 40LE511 LC 40LE531 NOTES ...
Страница 154: ...154 LC 32LE511 LC 40LE511 LC 40LE531 NOTES ...
Страница 155: ...155 LC 32LE511 LC 40LE511 LC 40LE531 LC 32LE LC 40LE LC 40LE NOTES ...