TAS5558
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SLES273A –APRIL 2013 – REVISED JUNE 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
1.4 Block Diagram
Figure 1-1. Functional Block Diagram
1.5 DESCRIPTION (Continued)
The TAS5558 can drive eight channels of H-bridge power stages. Texas Instruments Power Stages are
designed to work seamlessly with the TAS5558. The TAS5558 supports either the single-ended or bridge-
tied-load configuration. The TAS5558 also provides a high-performance, differential output to drive an
external, differential-input, analog headphone amplifier.
The TAS5558 supports AD, BD, and ternary modulation operating at a 384-kHz switching rate for 48-, 96-,
and 192-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a broad,
flat noise floor and excellent dynamic range from 20 Hz to 32 kHz.
TAS5558 also features power-supply-volume-control (PSVC) improves dynamic range at lower power
level and can be used as part of a Class G Power Supply when used with closed loop PWM input power
stages.
Copyright © 2013, Texas Instruments Incorporated Device Information 3
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