TAS5558 Block Diagram
Serial Audio
Receiver
2x Stereo
Serial Audio
Receiver
2x Stereo
Serial Audio
Transciever
Stereo
4ch ASRC
4ch ASRC
Fixed Flow
Digital Audio
Processor
(DAP)
10ch input
8ch Processor
8ch Output Mixer
Clocks
(Osc, PLL
etc)
12.288
8ch PWM
Generator
+ Headphone
(PWM)
Bypass
MCU
I2C
Control
Power
Supply
Volume
Control
(PSVC)
Energy
Manager
(EMO)
Power
SDA
SCL
SDOUT/SDIN5
SDIN1
SDIN2
SCLK
LRCLK
SDIN2-1
SDIN2-2
SCLKO /SCLKIN_2
LRCLKO / LRCKIN_2
OSCRES
PLL
_FLTM
PLL
_FLTP
MCLK
EMO
1
ASEL_
EMO
2
PSVC/
MCLKO
VR
_DIG
VR
_PWM
VR
_ANA
AVDD
AVDD_PWM
AVSS
AVSS_PWM
DVDD1
DVDD2
DVSS1
DVSS2
/PDN
PWM_HPM_L&R
PWM_HPP_L&R
/BKND_ERR
PWM_x_1
through 8
ASEL_
EMO
2
VALID
/MUTE
TEST
RESET
/HP
_SEL
TAS5558
www.ti.com
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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