ADAV4601 datasheet(33/60 Pages) AD

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ADAV4601

Rev. B | Page 33 of 60

Address 0x0102 Main and Headphone 1/AUXOUT4 Input Trim Register (Default: 0x0E0E)

Table 17.

Bit No.

Bit Name

Description

Default

Bits[15:14]

Reserved

Always write as 0 if writing to this register.

Bits[13:8]

Main input trim

These register bits are used to gain or attenuate the input to the main channel

processing path from −14 dB to +14 dB in +1 dB steps.

001110

0x00 = +14 dB

0x01 = +13 dB

…

0x07 = +7 dB

…

0x0E = 0 dB

…

0x15 = −7 dB

0x1B = −13 dB

0x1C = −14 dB

Bits[7:6]

Reserved

Always write as 0 if writing to this register.

Bits[5:0]

Headphone 1/AUXOUT4 input trim

These register bits are used to gain or attenuate the input to the Headphone 1/

AUXOUT4 channel processing path from −14 dB to +14 dB in +1 dB steps.

001110

0x00 = +14 dB

0x01 = +13 dB

…

0x07 = +7 dB

…

0x0E = 0 dB

…

0x15 = −7 dB

…

0x1B = −13 dB

0x1C = −14 dB

Address 0x0103 SDO0/AUXOUT3 and SPDIF Input Trim Register (Default: 0x0E0E)

Table 18.

Bit No.

Bit Name

Description

Default

Bits[15:14]

Reserved

Always write as 0 if writing to this register.

Bits[13:8]

SDO0/AUXOUT3 input trim

These register bits are used to gain or attenuate the input to the SDO0 and the

AUXOUT3 processing path from −14 dB to +14 dB in +1 dB steps.

001110

0x00 = +14 dB

0x01 = +13 dB

…

0x07 = +7 dB

…

0x0E = 0 dB

…

0x15 = −7 dB

0x1B = −13 dB

0x1C = −14 dB

Bits[7:6]

Reserved

Always write as 0 if writing to this register.

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