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Products: <strong>Audio</strong> Amplifiers<br />
PurePath Digital TM PWM Processors<br />
15<br />
➔<br />
7.1-Channel Digital <strong>Audio</strong> PWM Processor<br />
TAS5518<br />
www.ti.com/sc/device/TAS5518<br />
The digital audio PWM processor is the first chip in a two-chip digital<br />
amplifier chipset. It accepts PCM data from a DSP, ADC or interface<br />
(S/PDIF) and converts the data into PWM format. It then passes this<br />
PWM data to the power stage that drives the speaker.<br />
Some PWM processors include a digital audio processor to handle<br />
post-processing functions such as volume control, treble/bass control,<br />
EQ, bass management, compression/limiting and loudness.<br />
Channel counts vary from stereo versions to multichannel, ideal for<br />
the 5.1, 6.1 and 7.1 markets. Software configurability and pin-for-pin<br />
compatibility allow a single board to be used for many design<br />
platforms.<br />
Key Features<br />
• Software configurable for 5.1-, 6.1- or 7.1-channel operation<br />
• 110-dB dynamic range<br />
• Extendable to 134-dB with special power supply<br />
• Volume, treble and bass control<br />
• Third-party algorithms such as SRS TruSurround, BBE and QSound<br />
can be downloaded through I 2 C<br />
• Channel mapping enables board reuse and eases PCB signal routing<br />
• PWM headphone output (in 5.1-channel mode)<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 PWM Processors, see the Selection <strong>Guide</strong><br />
on page 34.<br />
PurePath Digital PWM Processors<br />
TAS5518<br />
TAS5001/10/12<br />
• 24 bit, stereo<br />
• 94-/96-/102-dB<br />
dynamic range<br />
• 32- to 192-kHz<br />
TAS5508B<br />
• 8 channel<br />
• 48-bit audio processing<br />
• Volume, EQ,<br />
treble/bass, loudness<br />
• PSU volume control<br />
• 102-dB dynamic range<br />
TAS5504A<br />
• 4 channel<br />
• 48-bit audio processing<br />
• Volume, EQ,<br />
treble/bass, loudness<br />
• PSU volume control<br />
• 102-dB dynamic range<br />
• 8 channel<br />
• 48-bit audio processing<br />
• Volume, EQ, treble/bass,<br />
loudness<br />
• PSU volume control<br />
• 110-dB dynamic range<br />
FEATURED PRODUCT<br />
TAS5028<br />
• 8 channel<br />
• 48-bit audio processing<br />
• Volume, channel mapping<br />
• PSU volume control<br />
• 102-dB dynamic range<br />
Key<br />
Multichannel, Pin/SW Compatible<br />
Multichannel<br />
Stereo<br />
TAS5086<br />
• 6 channel<br />
• Volume, channel<br />
mapping<br />
• Bass management<br />
• 107-dB dynamic range<br />
Texas Instruments <strong>1Q</strong> <strong>2007</strong><br />
<strong>Audio</strong> <strong>Solutions</strong> <strong>Guide</strong>