TAS5731MPHPR datasheet(51/81 Pages) TI1

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TAS5731M

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SLOS838C – JULY 2013 – REVISED AUGUST 2015

9.6.11 Interchannel Delay Registers (0x11, 0x12, 0x13, and 0x14)

Internal PWM Channels 1, 2, 1, and 2 are mapped into registers 0x11, 0x12, 0x13, and 0x14.

Table 14. Channel Interchannel Delay Registers (0x11, 0x12, 0x13, and 0x14)

BITS DEFINITION

FUNCTION

–

Minimum absolute delay, 0 DCLK cycles

–

Maximum positive delay, 31 × 4 DCLK cycles

–

Maximum negative delay, –32 × 4 DCLK cycles

Reserved

SUBADDRESS

DELAY = (VALUE) × 4 DCLKs

0x11

–

Default value for channel 1(1)

0x12

–

Default value for channel 2 (1)

0x13

–

Default value for channel 1 (1)

0x14

–

Default value for channel 2 (1)

(1)

Default values are in bold.

ICD settings have high impact on audio performance (e.g., dynamic range, THD, crosstalk etc.). Therefore,

appropriate ICD settings must be used. By default, the device has ICD settings for AD mode. If used in BD

mode, then update these registers before coming out of all-channel shutdown.

AD MODE

BD MODE

0x11

0x12

0x13

0x14

9.6.12 PWM Shutdown Group Register (0x19)

Settings of this register determine which PWM channels are active. The value must be 0x30 for BTL mode and

0x3A for PBTL mode. The default value of this register is 0x30. The functionality of this register is tied to the

state of bit D5 in the system control register.

This register defines which channels belong to the shutdown group (SDG). If a 1 is set in the shutdown group

set to 0 in system control register 2, 0x05).

Table 15. Shutdown Group Register (0x19)

FUNCTION

–

Reserved(1)

–

Reserved(1)

–

Reserved(1)

–

Reserved(1)

–

PWM channel 4 does not belong to shutdown group. (1)

–

PWM channel 4 belongs to shutdown group.

–

PWM channel 3 does not belong to shutdown group. (1)

–

PWM channel 3 belongs to shutdown group.

–

PWM channel 2 does not belong to shutdown group. (1)

–

PWM channel 2 belongs to shutdown group.

–

PWM channel 1 does not belong to shutdown group. (1)

–

PWM channel 1 belongs to shutdown group.

(1)

Default values are in bold.

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