ACS422A68TAGZBX8 IDT, ACS422A68TAGZBX8 Datasheet - Page 54

• 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.
4.6.
The ADC volume can be controlled digitally, across a gain and attenuation range of -71.25dB to +24dB (0.375dB
steps). The level of attenuation is specified by an eight-bit code ‘ADCVOL_x’, where ‘x’ is L, or R. The value
“00000000” indicates mute; other values describe the number of 0.375dB steps above -71.25dB.
The ADCVOLU bit controls the updating of digital volume control data. When ADCVOLU is written as ‘0’, the ADC digi-
tal volume is immediately updated with the ADCVOL_L data when the Left ADC Digital Volume register is written.
When ADCVOLU is set to ‘1’, the ADCVOL_L data is held in an internal holding register until the Right ADC Digital Vol-
ume Register is written.
R22 (16h)
ADC Control
(CNVRTR0)
Register Address
ADCHPDR
4.5.1.
4.5.2.
Digital ADC Volume Control
0
0
1
1
ADC Signal Path Control Register
ADC High Pass Filter Enable modes
ADCHPDL
Bit
5:4
7
6
3
2
1
0
0
1
0
1
AMONOMIX
ADCHPDR
ADCPOLR
ADCHPDL
ADCPOLL
ADCMU
HPOR
Label
[1:0]
Table 61. CNVRTR0 Register
High-pass filter disabled on left channel, enabled on right channel
High-pass filter enabled on left channel, disabled on right channel
Table 62. ADC HPF Enable
Type
RW
RW
RW
RW
RW
RW
RW
High-pass filter disabled on left and right channels
High-pass filter enabled on left and right channels
Default
54
00
0
0
1
0
0
0
0 = Right polarity not inverted
1 = Right polarity inverted
0 = Left polarity not inverted
1 = Left polarity inverted
ADC mono mix
00: Stereo
01: Analog Mono Mix (using left ADC)
10: Analog Mono Mix (using right ADC)
11: Digital Mono Mix
1 = Mute ADC
High Pass Offset Result
0 = discard offset when HPF disabled
1 = store and use last calculated offset when HPF
disabled
ADC High Pass Filter Disable (Right)
ADC High Pass Filter Disable (Right)
High Pass Mode
Description
ACS422X68
V1.6 01/13