ACS422A68TAGZBX8 IDT, ACS422A68TAGZBX8 Datasheet - Page 29

• 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.
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Expander Attack Time Constant Register (Low)
Expander Attack Time Constant Register (High)
Expander Release Time Constant Register (Low)
Expander Release Time Constant Register (High)
3.8.
The ACS422x68 offers Bass enhancement, Treble enhancement, Stereo Depth enhancement. The output effects pro-
cessing is outlined in the following sections.l
3.9.
The ACS422x68 has a digital depth enhancement option to artificially increase the separation between the left and
right channels, by enabling the attenuation of the content common to both channels. The amount of attenuation is pro-
grammable within a range. The input is prescaled (fixed) before summation to prevent saturation.
The 3-D enhancement algorithm is a tried and true algorithm that uses two principles.
R53 (35h)
XATKTCL
R54 (36h)
XATKTCH
R55 (37h)
XRELTCL
R56 (38h)
XRELTCH
R57 (39h)
FXCTL
Register Address
Register Address
Register Address
Register Address
Register Address
Output Effects
Stereo Depth (3-D) Enhancement
Bit
7:0
Bit
7:0
Bit
7:0
Bit
7:0
Bit
7:5
4
3
2
1
0
XATKTC[15:8]
XRELTC[15:8]
XATKTC[7:0]
XRELTC[7:0]
TNLFBYP
BNLFBYP
RSVD
BEEN
Label
Label
Label
Label
Label
3DEN
TEEN
Table 35. FX Control Register
Table 32. XATKTCH Register
Table 34. XRELTCH Register
Table 31. XATKTCL Register
Table 33. XRELTCL Register
Type
Type
Type
Type
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
R
Default
Default
Default
Default
Default
29
00h
00h
000
0
0
0
0
0
0
0
Low byte of the time constant used to ramp to a new
gain value during a expander attack phase.
High byte of the time constant used to ramp to a new
gain value during a expander attack phase.
Low byte of the time constant used to ramp to a new
gain value during a expander release phase.
High byte of the time constant used to ramp to a new
gain value during a expander release phase.
Reserved
3D Enhancement Enable
0 = Disabled 1 = Enabled
Treble Enhancement Enable
0 = Disabled 1 = Enabled
Treble Non-linear Function Bypass:
0 = Enabled
Bass Enhancement Enable
0 = Disabled 1 = Enabled
Bass Non-linear Function Bypass:
0 = Enabled
1 = Bypassed
1 = Bypassed
Description
Description
Description
Description
Description
ACS422X68
V1.6 01/13