Figure 49, Figure 50, Cs4234 – Cirrus Logic CS4234 User Manual
Page 78: Figure 49. dac5 tps modes of operation, Figure 50. dac5 volume and tps offset controls, Mode 0 mode 1 tps gain = 0, Mode 1 tps gain = 1
DS899F1
78
CS4234
0V
0V
VA/2
VA/2
VA/2
Digital "0"
Digital "0"
Digital "0"
Full Scale
Full Scale
Full Scale
0V
0
.5x
F
u
ll S
cal
e
0.
5x
F
u
ll S
cal
e
0
.5x
F
u
ll S
cal
e
AOUT5+
0V
AOUT5-
0V
SMPS Control
(AOUT5+ - AOUT5-)
VA/2
VA/2
VA/2
Digital "0"
Digital "0"
Digital "0"
Full Scale
Full Scale
Full Scale
0V
0
.5x
F
u
ll S
cal
e
0.
5x
F
u
ll S
cal
e
0
.5x
F
u
ll S
cal
e
AOUT5+
AOUT5-
SMPS Control
(AOUT5+ - AOUT5-)
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Mode 0
Mode 1 TPS Gain = 0
AOUT5+
0V
AOUT5-
0V
VA/2
VA/2
VA/2
Digital "0"
Digital "0"
Digital "0"
Full Scale
Full Scale
Full Scale
0V
Full
S
ca
le
Fu
ll S
ca
le
Fu
ll S
ca
le
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Mode 1 TPS Gain = 1
SMPS Control
(AOUT5+ - AOUT5-)
-VA/2
Figure 49. DAC5 TPS Modes of Operation
0V
0V
VA/2
VA/2
Digital "0"
Digital "0"
Full Scale
Full Scale
0.
5x
F
u
ll S
cal
e
0.
5x
F
u
ll S
cal
e
AOUT5+
0V
AOUT5-
0V
VA/2
VA/2
Digital "0"
Digital "0"
Full Scale
Full Scale
0.
5x
F
u
ll S
cal
e
0.
5x
F
u
ll S
cal
e
Mode 0
Mode 1 TPS Gain = 0
AOUT5+
AOUT5-
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
SMPS Control
(AOUT5+ - AOUT5-)
VA/2
Digital "0"
Full Scale
0V
0.
5x
F
u
ll S
cal
e
Digital Audio Input
to DAC5 Path
VA/2
Digital "0"
Full Scale
0V
0.
5x
F
u
ll S
cal
e
SMPS Control
(AOUT5+ - AOUT5-)
Digital Audio Input
to DAC5 Path
- VA/2
incre
ase T
PS o
ffset
decre
ase D
AC5
volum
e
increase
TPS offs
et
decrease
DAC5 v
olume
inc
rea
se
TP
S o
ffse
t
decre
ase D
AC5
volum
e
increase
TPS offs
et
decrease
DAC5 v
olume
increa
se TP
S offs
et
decre
ase D
AC5 v
olume
incre
ase
TPS
offs
et
decrease
DAC5 v
olume
AOUT5+
0V
AOUT5-
0V
VA/2
VA/2
VA/2
Digital "0"
Digital "0"
Digital "0"
Full Scale
Full Scale
Full Scale
0V
F
ull S
ca
le
F
ull Sc
a
le
F
ull S
ca
le
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Digital Audio Input
to DAC5 Path
Mode 1 TPS Gain = 1
SMPS Control
(AOUT5+ - AOUT5-)
-VA/2
incre
ase
TP
S off
set
decreas
e DAC5 v
olume
inc
rea
se
TP
S o
ffse
t
decre
ase D
AC5 v
olume
inc
re
as
e TP
S o
ffse
t
decr
ease
DA
C5 v
olum
e
Figure 50. DAC5 Volume and TPS Offset Controls