LM49352 datasheet(20/106 Pages) TI

Part #	LM49352

Description	Boomer Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers, Earpiece Driver, and Audio DSP

PDF	106 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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20 / 106 page

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100k

100

10k

FREQUENCY (Hz)

0.001

0.01

0.1

10m

100m

OUTPUT POWER (W)

100

20k

FREQUENCY (Hz)

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0.1

10k

0.001

0.01

0.1

10m

100m

OUTPUT POWER (W)

LM49352

SNAS467E – MARCH 2009 – REVISED MARCH 2013

www.ti.com

Typical Performance Characteristics (continued)

Loudspeaker THD+N vs Output Power

From MONO/AUX Input, MONO/AUX Gain = 0dB

LS Gain = 8dB, fIN = 1kHz, RL = 8Ω

Loudspeaker THD+N vs Input Voltage

Blue >> LSVDD = 3.3V

From MONO/AUX Input, MONO/AUX Gain = 0dB

Light Blue >> LSVDD = 4.2V

LS Gain = 8dB, LSVDD = 3.3V, POUT = 300VRMS, RL = 4Ω

Green >> LSVDD = 5V

Figure 28.

Figure 29.

Loudspeaker THD+N vs Output Power

fS = 48kHz, OSR = 128

From MONO/AUX Input, MONO/AUX Gain = 0dB

LS Gain = 8dB, fIN = 1kHz, RL = 4Ω

Blue >> LSVDD = 3.3V

Loudspeaker PSRR vs Frequency

Light Blue >> LSVDD = 4.2V

MONO/AUX Input, MONO/AUX Gain = 0dB, LS Gain = 12dB

Green >> LSVDD = 5V

LSVDD = 3.3V, VRIPPLE = 200mVPP, Input Referred

Figure 30.

Figure 31.

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