Datasheet

TAS5508C
SLES257–SEPTEMBER 2010 www.ti.com
Table 3-6 lists the optimal setting for each output-stage configuration. Note that the default value is
applicable in all configurations except the TAS5182 SE/BTL configuration.
Table 3-6. Recommended TAS5508C Configurations for Texas Instruments Power Stages
DEVICE ERROR RECOVERY CONFIGURATION D7 D6 D5 D4 D3 D2 D1 D0
BTL 1 1 1 0 0 0 0 0
RES
SE 1 1 1 0 0 0 0 0
TAS5111
(default)
BTL 0 1 1 0 0 0 0 0
AUT
SE 0 1 1 0 0 0 0 0
BTL 1 1 0 0 0 0 0 0
RES
SE 1 1 0 0 0 0 0 0
TAS5112
BTL 0 1 0 0 0 0 0 0
AUT
SE 0 1 0 0 0 0 0 0
BTL 1 1 1 0 1 0 0 0
TAS5182 RES
SE 1 1 1 0 1 0 0 0
RES: To recover from a shutdown, the output stage requires VALID to go low.
AUT: The power stage can auto-recover from a shutdown.
BTL: Bridge-tied load configuration
SE: Single-ended configuration
3.3.2 Headphone Configuration Registers
The headphone configuration controls are identical to the speaker configuration controls. The headphone
configuration control settings are used in place of the speaker configuration control settings for channels 1
and 2 when the headphones are selected. However, only one configuration setting for headphones is
used, and that is the default setting.
3.3.3 Audio System Configurations
The TAS5508C can be configured to comply with various audio systems: 5.1-channel system, 6-channel
system, 7.1-channel system, and 8-channel system.
The audio system configuration is set in the general control register (0xE0). Bits D31–D4 must be zero
and D0 is don't care.
D3 Determines if SUB is to be controlled by PSVC
D2 Enables/disables power-supply volume control
D1 Sets number of speakers in the system, including possible line outputs
D3–D1 must be configured for the audio system in the application, as shown in Table 3-7.
48 TAS5508C Controls and Status Copyright © 2010, Texas Instruments Incorporated
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