ACS422A68TAGZBX8 IDT, ACS422A68TAGZBX8 Datasheet - Page 49

• Manufacturer Part Number: ACS422A68TAGZBX8
• Description: Interface - CODECs
• Manufacturer: IDT

Specifications of ACS422A68TAGZBX8

• Rohs: yes
• Part # Aliases: IDTACS422A68TAGZBX8

ACS422x68
LOW-POWER, HIGH-FIDELITY, INTEGRATED CODEC
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
4.2.
The stereo ADC can operate as a stereo or mono device, or the two channels can be mixed to mono. Mixing can occur
either in the input path (analog, before ADC) or after the ADC. MONOMIX determines whether to mix to mono, and
where.
For analog mono mix, either the left or right channel ADC can be used for the audio stream. The other ADC may be
powered off to conserve power. A differential input amplifier may be selected as a mono source to either ADC input.
This D2S amplifier can select either Input 1 or Input 2 using the DS bit.
The system also has the flexibility to select the data output. ADCDSEL configures the interface, assigning the source of
the left and right ADC independently.
R12 (0Ch)
ADC Signal Path
Control Left
(INSELL)
R13 (0Dh)
ADC Signal Path
Control Right
(INSELR)
Register Address
4.1.1.
Mono Mixing and Output Configuration
Input Registers
Bit
7:6
5:4
3:0
7:6
5:4
3:0
MICBST_R
MICBST_L
INSEL_R
INSEL_L
RSVD
RSVD
Label
Table 55. Input Software Control Register
Type
RW
RW
RW
RW
R
R
Default
49
0000
0000
00
00
00
00
Left Channel Input Select
00 = LINPUT1
01 = LINPUT2
10 = LINPUT3
11 = D2S
Left Channel Microphone Gain Boost
00 = Boost off (bypassed)
01 = 10dB boost
10 = 20dB boost
11 = 30dB boost
Reserved
Right Channel Input Select
00 = RINPUT1
01 = RINPUT2
10 = RINPUT3
11 = D2S
Right Channel Microphone Gain Boost
00 = Boost off (bypassed)
01 = 10dB boost
10 = 20dB boost
11 = 30dB boost
Reserved
Description
ACS422X68
V1.6 01/13