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TAS5112A: Digital Amplifier Power Stage
TAS5112A
SLES094B - OCTOBER 2003 - REVISED JUNE 2008
DIGITAL AMPLIFIER POWER STAGE
FEATURES 50 W per Channel (BTL) Into 6 Ω (Stereo) 95-dB Dynamic Range With TAS5026 Less Than 0.1% THD+N (1 W RMS Into 6 Ω) Less Than 0.2% THD+N (50 W RMS into 6 Ω) Power Efficiency Typically 90% Into 6-Ω Load Self-Protecting Design (Undervoltage,
Overtemperature and Short Conditions) With
Error Reporting Internal Gate Drive Supply Voltage Regulator EMI Compliant When Used With
Recommended System Design
APPLICATIONS DVD Receiver Home Theatre Mini/Micro Component Systems Internet Music Appliance
DESCRIPTIONThe TAS5112A is a high-performance, integrated stereo
digital amplifier power stage designed to drive 6-Ω
speakers at up to 50 W per channel. The device
incorporates TI’s PurePath Digital� technology and is
used with a digital audio PWM processor (TAS50XX) and
a simple passive demodulation filter to deliver high-quality,
high-efficiency, true-digital audio amplification.
The efficiency of this digital amplifier is typically 90%,
reducing the size of both the power supplies and heatsinks
needed. Overcurrent protection, overtemperature
protection, and undervoltage protection are built into the
TAS5112A, safeguarding the device and speakers against
fault conditions that could damage the system.
PO - Output Power - W
100m 10 100
THD+N - T
otal Harmonic Distortion + Noise - %
THD + NOISE vs OUTPUT POWER
f - Frequency - Hz 100 1k 10k
THD+N - T
otal Harmonic Distortion + Noise - %
20k
THD + NOISE vs FREQUENCY
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