CS42L52 Datasheet, PDF (19/82 Pages) Cirrus Logic – Low Power, Stereo CODEC w/Headphone & Speaker Amps

CS42L52
HEADPHONE OUTPUT POWER CHARACTERISTICS
Test conditions (unless otherwise specified): Input test signal is a full-scale 997 Hz sine wave; measurement bandwidth is 10 Hz
to 20 kHz; Sample Frequency = 48 kHz; test load R_L = 16 Ω, C_L = 10 pF (see Figure 2).
Parameters
VA = 2.5V
Min
Typ
Max
VA = 1.8V
Unit
Min
Typ
Max
AOUTx Power Into R_L = 16 Ω
HP_GAIN[2:0] Analog
Gain (G)
VHP
000
001
010
011 (default)
100
101
0.3959
0.4571
0.5111
0.6047
0.7099
0.8399
1.8 V
2.5 V
1.8 V
2.5 V
1.8 V
2.5 V
1.8 V
2.5 V
1.8 V
2.5 V
1.8 V
-
14
-
-
14
-
-
19
-
-
19
-
-
23
-
-
23
-
(Note 11)
-
32
-
(Note 11)
-
44
-
-
7
-
-
7
-
-
10
-
-
10
-
-
12
-
-
12
-
-
17
-
-
17
-
-
23
-
-
23
-
(Note 7) See Figure 22 on page
75
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
2.5 V
110
1.0000
1.8 V
2.5 V
111
1.1430
1.8 V
2.5 V
-
32
-
(Note 7, 11) See Figures 22 and 23 on page 75
mW_rms
mW_rms
mW_rms
mW_rms
mW_rms
11. VHP settings lower than VA reduces the headroom of the headphone amplifier. As a result, the DAC
may not achieve the full THD+N performance at full-scale output voltage and power.
AOUTx
51 Ω
0.022 μF
CL
RL
AGND
Figure 2. Headphone Output Test Load
DS680A1
19