
Introduction
1
SLES061B—November 2002—Revised January 2004
TAS5036A
1
Introduction
The TAS5036A is an innovative, cost-effective, high-performance 24-bit six-channel digital pulse-width
modulator (PWM) based on Equibit
technology. Combined with a TI PurePath Digital
audio amplifier power
stage, these devices use noise-shaping and sophisticated error-correction algorithms to achieve high power
efficiency and high-performance digital audio reproduction. The TAS5036A is designed to drive up to six digital
power devices to provide six channels of digital audio amplification. The digital power devices can be six
conventional monolithic power stages (such as the TAS5110) or six discrete differential power stages using
gate drivers and MOSFETs.
The TAS5036A has six independent volume controls and mute. The device operates in AD and BD modes.
This all-digital audio system contains only two analog components in the signal chain—an LC low-pass filter
at each speaker terminal—and can provide up to 96-dB SNR at the speaker terminals. The TAS5036A has
a wide variety of serial input options including right justified (16-, 20-, or 24-bit), I
2
S (16-, 20-, or 24-bit) left
justified, and DSP (16-bit) data formats. The device is fully compatible with AES standard sampling rates of
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz, including de-emphasis for 44.1-kHz and 48-kHz
sample rates. The TAS5036A plus the TAS51xx power stage device combination was designed for home
theater applications such as DVD minicomponent systems, home theater in a box (HTIB), DVD receiver, A/V
receiver, or TV sets.
1.1
Features
TI PurePath Digital Audio Amplifier
High-Quality Audio
100-dB SNR
<0.005% THD+N
Six-Channel Volume Control
Patented Soft Volume
Patented Soft Mute
16-, 20-, or 24-Bit Input Data
Sampling Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
Supports Master and Slave Modes
3.3-V Power Supply Operation
Economical 80-Pin TQFP Package
De-Emphasis: 32 kHz, 44.1 kHz, and 48 kHz
Clock Oscillator Circuit for Master Modes
Low-Jitter Internal PLL
Soft Volume and Mute Update
Equibit and PurePath Digital are trademarks of Texas Instruments.
Other trademarks are the property of their respective owners.