CS42L52 datasheet(19/82 Pages) CIRRUS

19 / 82 page

DS680A1

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 RL = 16 Ω, CL = 10 pF (see Figure 2).

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.

Parameters

VA = 2.5V

Min

Typ

Max

VA = 1.8V

Min

Typ

Max

Unit

AOUTx Power Into RL = 16 Ω

HP_GAIN[2:0]

Analog

Gain (G)

VHP

000

0.3959

1.8 V

mWrms

2.5 V

mWrms

001

0.4571

1.8 V

mWrms

2.5 V

mWrms

010

0.5111

1.8 V

mWrms

2.5 V

mWrms

011 (default)

0.6047

1.8 V

(Note 11)

-17

mWrms

2.5 V

mWrms

100

0.7099

1.8 V

(Note 11)

-23

mWrms

2.5 V

mWrms

101

0.8399

1.8 V

(Note 7) See Figure 22 on page

mWrms

2.5 V

-32

mWrms

110

1.0000

1.8 V

(Note 7, 11) See Figures 22 and 23 on page 75

mWrms

2.5 V

mWrms

111

1.1430

1.8 V

mWrms

2.5 V

mWrms

AOUTx

AGND

0.022

μF

Figure 2. Headphone Output Test Load

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