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16<br />
➔<br />
Products: <strong>Audio</strong> Amplifiers<br />
PurePath Digital TM<br />
Power Stages<br />
315-W Mono and 200-W Stereo Digital Amplifier<br />
Power Stages<br />
TAS5261/5162<br />
www.ti.com/sc/device/TAS5261<br />
www.ti.com/sc/device/TAS5162<br />
A subset of class-D audio amplifiers, digital amplifiers accept a digital<br />
PCM input, enabling the audio signal to remain digital from source to<br />
output. This improves noise immunity and ensures that audio output is<br />
a crystal-clear replication of the audio source.<br />
Digital amplifiers typically have higher power than analog-input class-D<br />
amps. TI’s digital amplifier power stages range from 20 W per channel<br />
up to 300 W per channel.<br />
Key Features<br />
• 200 W of stereo output power per channel into 6 Ω (BTL)<br />
• 4X100W, 3 Ω in single-ended mode (TAS5162)<br />
• >95% efficient at 4 Ω, lowering heat sink size and operating<br />
temperature, and extending reliability<br />
• Two-stage over-current detector ensures current spikes due to<br />
speaker impedance versus frequency droops are handled<br />
gracefully and inaudibly.<br />
• Power-on reset control simplifies system design by eliminating<br />
need to sequence power supply.<br />
• Packaging: 44-pin HTSSOP and 36-pin PSOP3<br />
Applications<br />
• DVD receivers (see System Block Diagram on page 22)<br />
• Home theaters<br />
To Know More<br />
• For a complete list of Power Stages, see the Selection <strong>Guide</strong><br />
on page 34.<br />
PurePath Digital Power Stages<br />
Dynamic Range (dB)<br />
130<br />
110<br />
TAS5152<br />
TAS5132<br />
TAS5142<br />
TAS5122 TAS5112A TAS5111A<br />
TAS5162<br />
FEATURED PRODUCTS<br />
Key<br />
TAS5261*<br />
*Using power<br />
supply volume<br />
control<br />
TAS5261<br />
With TAS5518 PWM Processor<br />
With TAS5086 PWM Processor<br />
105<br />
Pin-for-Pin Compatible<br />
30 100 200 300<br />
Power per Channel (W)<br />
<strong>Audio</strong> <strong>Solutions</strong> <strong>Guide</strong> Texas Instruments <strong>1Q</strong> <strong>2007</strong>
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