AS3412 datasheet(23/85 Pages) AMSOSRAM

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[v1-00] 2016-Apr-06

AS3412 − Detailed Description

Headphone Amplifier Parameter: This table shows the detailed electrical characteristics of the headphone

amplifier like output power, SNR and channel separation.

Figure 24:

Headphone THD+N vs. Output Power 32Ω Stereo

Headphone THD+N vs. Output Power: These figures shows the THD+N measurements of the headphone

amplifier with different supply voltages in normal mode and ECO mode. The amplifier gain is 0dB with 32Ω load.

Figure 25:

Headphone THD+N vs. Output Power 16Ω Stereo

Headphone THD+N vs. Output Power: These figures shows the THD+N measurements of the headphone

amplifier with different supply voltages in normal mode and ECO mode. The amplifier gain is 0dB with 16Ω load.

VNoise-A

Output Noise Floor

A-Weighted

High Quality Mode; 32Ω load;

HP_MUX = nc; LINx connected to

ground

2.5

μV

ECO Mode; 32Ω load; HP_MUX = nc;

LINx connected to ground

3.1

μV

Symbol

Parameter

Condition

Min

Typ

Max

Unit

0,001

0,01

0,1

110

100

Pout [mW]

Vbat = 1.8V

Vbat = 1.65V

0,001

0,01

0,1

110

100

Pout [mW]

Vbat = 1.8 ECO

Vbat = 1.65V ECO

0,001

0,01

0,1

110

100

Pout [mW]

Vbat = 1.8V

Vbat = 1.65V

0,001

0,01

0,1

110

100

Pout [mW]

Vbat = 1.8 ECO

Vbat = 1.65V ECO

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