ADAV4601 System Design Document
Confidential Information
Rev.1 August 2009
Analog Devices
Page 71
Address 0x0103 SDO0/AUXOUT3 and SPDIF Input Trim Register (Default: 0x0E0E)
Table 12.
Bit No.
Bit Name
Description
Default
Bits[15:14]
Reserved
Always write as 0 if writing to this register.
00
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.
00
Bits[5:0]
SPDIF input trim
These register bits are used to gain or attenuate the input to the
SPDIF 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 0x0104 AUXOUT1 Input Trim Register (Default: 0x0E0E)
Table 13.
Bit No.
Bit Name
Description
Default
Bits[15:14]
Reserved
Always write as 0 if writing to this register.
00
Bits[13:8]
AUXOUT1 input trim
These register bits are used to gain or attenuate the input to
the AUXOUT1
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
