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TAS5122-TAS5122DCA-TAS5122DCAR-TAS5122DCARG4
TAS5122: Digital Amplifier Power Stage
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SLES088E – AUGUST 2003 – REVISED DECEMBER 2004
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FEATURES 2 × 30 W (BTL) Into 6 Ω at 1 kHz 95-dB Dynamic Range (in System With
TAS5026) < 0.2% THD+N (in System – 30 W RMS Into
6-Ω Resistive Load) Device Power Efficiency Typical >90% Into
6-Ω Load Self-Protection Design (Including
Undervoltage, Overtemperature, and Short
Conditions) With Error Reports 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 TAS5122 is a high-performance, integrated stereo
digital amplifier power stage designed to drive 6-Ω
speakers at up to 30 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 greater
than 90%. Overcurrent protection, overtemperature
protection, and undervoltage protection are built into the
TAS5122, safeguarding the device and speakers against
fault conditions that could damage the system.
f − Frequency − Hz 100 1k 10k
THD+N − T
otal Harmonic Distortion + Noise − %
20k
THD + NOISE vs FREQUENCY
PO − Output Power − W
40m 100m 10 40
THD+N − T
otal Harmonic Distortion + Noise − %
THD + NOISE vs OUTPUT POWER
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