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1
SLES044B—November 2002
TAS5036
1
Introduction
The TAS5036 is an innovative, cost-effective, high-performance 24-bit six-channel digital pulse width
modulator (PWM) based on Equibit
technology. Combined with a TI digital 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 TAS5036 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 TAS5036 has six independent volume controls and mute. It is designed to drive a digital amplifier power
stage (such as the TAS5182) in an H-bridge (bridge tied load) configuration. 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
TAS5036 has a wide variety of serial input options including right justified (16, 20, or 24 bit), I2S (16, 20, or
24 bit) left justified, or 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 TAS5036 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
True Digital Audio Amplifier
High Quality Audio
–
96-dB SNR
–
<0.1% 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
High Power Efficiency
Clock Oscillator Circuit for Master Modes
Low Jitter Internal PLL
Soft Volume and Mute Update
Excellent PSRR
Equibit is a trademark of Texas Instruments Incorporated.