EVAL-ADAU1761Z Analog Devices Inc, EVAL-ADAU1761Z Datasheet - Page 58

• Manufacturer Part Number: EVAL-ADAU1761Z
• Description: Eval Board For ADAU1761
• Manufacturer: Analog Devices Inc
• Series: SigmaDSP®r

Specifications of EVAL-ADAU1761Z

• Main Purpose: Audio, CODEC
• Embedded: Yes, DSP
• Utilized Ic / Part: ADAU1761
• Primary Attributes: Stereo, 24-Bit, 8 ~ 96 kHz Sampling Rate, GUI Tool
• Secondary Attributes: I²C and GPIO Interfaces, 2 Differential and 1 Stereo Single-Ended Analog Inputs and Outputs
• Silicon Manufacturer: Analog Devices
• Core Architecture: SigmaDSP
• Silicon Core Number: ADAU1761
• Silicon Family Name: SigmaDSP
• Application Sub Type: Audio
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADAU1761
R7: Record Mixer Right (Mixer 2) Control 1, 16,397 (0x400D)
This register controls the gain boost of the right channel differential PGA input and the gain for the right channel auxiliary input in the
record path. The right channel record mixer is referred to as Mixer 2.
Bit 7
Table 41. Record Mixer Right (Mixer 2) Control 1 Register
Bits
[4:3]
[2:0]
R8: Left Differential Input Volume Control, 16,398 (0x400E)
This register enables the differential path and sets the volume control for the left differential PGA input.
Bit 7
Table 42. Left Differential Input Volume Control Register
Bits
[7:2]
1
0
Bit Name
RDBOOST[1:0]
MX2AUXG[2:0]
Bit Name
LDVOL[5:0]
LDMUTE
LDEN
Bit 6
Bit 6
Reserved
Description
Right channel differential PGA input gain boost, input to Mixer 2. The right differential input uses the RINP
(positive signal) and RINN (negative signal) pins.
Setting
00
01
10
11
Right single-ended auxiliary input gain from the RAUX pin in the record path, input to Mixer 2.
Setting
000
001
010
011
100
101
110
111
Description
Left channel differential PGA input volume control. The left differential input uses the LINP (positive signal) and
LINN (negative signal) pins. Each step corresponds to a 0.75 dB increase in gain. See Table 92 for a complete list
of the volume settings.
Setting
000000
000001
…
010000
…
111110
111111
Left differential input mute control.
0 = mute (default).
1 = unmute.
Left differential PGA enable. When enabled, the LINP and LINN pins are used as a full differential pair. When
disabled, these two pins are configured as two single-ended inputs with the signals routed around the PGA.
0 = disabled (default).
1 = enabled.
Bit 5
Bit 5
LDVOL[5:0]
Bit 4
Bit 4
Gain Boost
Mute (default)
0 dB
20 dB
Reserved
Auxiliary Input Gain
Mute (default)
−12 dB
−9 dB
−6 dB
−3 dB
0 dB
3 dB
6 dB
Volume
−12 dB (default)
−11.25 dB
…
0 dB
…
34.5 dB
35.25 dB
Rev. C | Page 58 of 92
RDBOOST[1:0]
Bit 3
Bit 3
Bit 2
Bit 2
Bit 1
Bit 1
LDMUTE
MX2AUXG[2:0]
Bit 0
Bit 0
LDEN