PowerTune
Processing Block
Filter
Est. Power Change(mW)
PRB_P4
A
0
PRB_P5
A
+1.6
PRB_P6
A
+1.6
PRB_P12
B
–0.8
PRB_P14
B
0
PRB_P15
B
+1.6
PRB_P16
B
0
2.5.2.4
DAC, Mono, 48kHz, Lowest Power Consumption
DOSR = 64, Processing Block = PRB_P13 (Interpolation Filter B), PowerTune Mode = PTM_P1, DVdd =
1.26V
CM = 0.75V
CM = 0.9V
UNIT
AVdd=1.5V
AVdd=1.8V
0dB full scale
(1)
75
100
mV
RMS
HP out
Effective SNR w.r.t. 0dB full scale
88.7
91.5
dB
(32
Ω
load)
Power consumption
(2)
3.3
3.7
mW
Power consumption
(3)
2.9
3.3
mW
(1)
Reduced 0dB full-scale swing can be compensated by applying appropriate gain in the output drivers see .
(2)
Measured data using PRB_P13.
(3)
Calculated data for PRB_P12.
Alternative processing blocks:
Processing Block
Filter
Est. Power Change (mW)
PRB_P4
A
0
PRB_P5
A
+0.8
PRB_P6
A
+0.8
PRB_P12
B
–0.4
PRB_P14
B
0
PRB_P15
B
+0.8
PRB_P16
B
0
2.5.2.5
DAC, Stereo, 8kHz, Highest Performance, DVdd = 1.8V, AVdd = 1.8V
DOSR = 768, Processing Block = PRB_P7 (Interpolation Filter B)
Device Common Mode Setting = 0.75V
Device Common Mode Setting = 0.9V
PTM_P1
PTM_P2
PTM_P3
PTM_P4
PTM_P1
PTM_P2
PTM_P3
PTM_P4
UNIT
0dB full scale
75
211
375
375
100
281
500
500
mV
RMS
HP out
Effective SNR w.r.t.
88.3
93.3
97.7
98.0
90.5
95.3
99.2
99.7
dB
(32
Ω
0dB full scale
(1)
load)
Power consumption
6.8
7.8
8.5
8.5
6.8
7.8
8.5
8.5
mW
(1)
Reduced 0dB full-scale swing can be compensated by applying appropriate gain in the output drivers see .
Alternative processing blocks:
Processing Block
Filter
Est. Power Change (mW)
PRB_P1
A
+0.3
PRB_P2
A
+0.8
PRB_P3
A
+0.5
53
SLAU434 – May 2012
TLV320DAC3203 Application
Copyright © 2012, Texas Instruments Incorporated