ACS422A68TAGZBX8 IDT, ACS422A68TAGZBX8 Datasheet - Page 74
ACS422A68TAGZBX8
Manufacturer Part Number
ACS422A68TAGZBX8
Description
Interface - CODECs
Manufacturer
IDT
Datasheet
1.ACS422A68TAGZBX8.pdf
(93 pages)
Specifications of ACS422A68TAGZBX8
Rohs
yes
Part # Aliases
IDTACS422A68TAGZBX8
- Current page: 74 of 93
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ACS422x68
LOW-POWER, HIGH-FIDELITY, INTEGRATED CODEC
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
DAC and ADC Sigma-Delta modulators run at a high rate for the best audio quality. The modulator rates for the con-
verters may be forced to run at half their nominal rate to conserve power. A third option allows the modulator rate to
automatically drop to half rate when low sampling rates are chosen (1/2 or 1/4 the base rate.) The DACs and ADCs are
independently controlled.
R31 (1Fh)
CONFIG0
Register Address
Bit
7:6
5:4
3:2
1
0
DSDM[1:0]
ASDM[1:0]
sd_force_on
00
01
10
11
DSDM[1:0]
ASDM[1:0]
dc_bypass
RSVD
Label
Table 82. CONFIG0 Register
Table 83. SDM Rates
Type
000 (1/4x)
001 (1/2x)
000 (1/4x)
001 (1/2x)
000 (1/4x)
001 (1/2x)
RW
RW
RW
BM [2:0]
010 (1x)
010 (1x)
010 (1x)
011 (2x)
011 (2x)
011 (2x)
R
R
NA
Default
74
10h
10h
0h
0
0
ADC Modulator Rate
00 = Reserved
01 = Half
10 = Full
11 = Auto
DAC Modulator Rate
00 = Reserved
01 = Half
10 = Full
11 = Auto
Reserved for future use.
1 = bypass DC removal filter
(WARNING DC content can damage speakers)
1 = supply detect forced on. 0 = supply detect on
when needed (COP, UVLO enabled).
Modulator Rate
Auto (Half)
Auto (Half)
Auto (Full)
Auto (Full)
Reserved
Half
Full
Description
ACS422X68
V1.6 01/13
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