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TAS5802PWPR 데이터시트(PDF) 30 Page - Texas Instruments

부품명 TAS5802PWPR
상세설명  TAS5802 22W Stereo, Inductor-Less, Digital Input, Closed-Loop Class-D Audio Amplifier with 96Khz Extended Processing and Low Idle Power Dissipation
PDF  106 Pages
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제조업체  TI2 [Texas Instruments]
홈페이지  https://www.ti.com
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TAS5802PWPR 데이터시트(HTML) 30 Page - Texas Instruments

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• Play Mode. Register 0x68h [1:0]=11, device stays in Play Mode.
6.4.6 Device Modulation
TAS5802 has 3 modulation schemes: BD Modulation, 1SPW modulation and Hybrid modulation. Select
modulation schemes for TAS5802 with Register 0x02 [1:0]-DEVICE_CTRL1.
6.4.6.1 BD Modulation
This is a modulation scheme that allows operation without the classic LC reconstruction filter when the amp is
driving an inductive load with short speaker wires. Each output is switching from 0 volts to the supply voltage.
The OUTPx and OUTNx are in phase with each other with no input so that there is little or no current in the
speaker. The duty cycle of OUTPx is greater than 50% and OUTNx is less than 50% for positive output voltages.
The duty cycle of OUTPx is less than 50% and OUTNx is greater than 50% for negative output voltages. The
voltage across the load sits at 0 V throughout most of the switching period, reducing the switching current, which
reduces any I2R losses in the load.
OUTP
OUTN
OUTP
-OUTN
Speaker
Current
OUTP
OUTN
OUTP-OUTN
Speaker
Current
OUTP
OUTN
OUTP
-OUTN
Speaker
Current
0 V
0 V
PVCC
No Output
Positive Output
Negative Output
0 A
0 A
0 V
- PVCC
Figure 6-10. BD Mode Modulation
TAS5802
SLASFB7A – NOVEMBER 2024 – REVISED AUGUST 2025
www.ti.com
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