LM49352 datasheet(23/106 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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23 / 106 page

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100k

100

10k

FREQUENCY (Hz)

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FREQUENCY (Hz)

0.001

100m

OUTPUT POWER (W)

10m

0.01

0.1

LM49352

www.ti.com

SNAS467E – MARCH 2009 – REVISED MARCH 2013

Typical Performance Characteristics (continued)

Headphone THD+N vs Output Power

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

Headphone PSRR vs Frequency

Stereo In Phase, fIN = 1kHz, RL = 16Ω

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

Blue >> HPVDD = 1.8V

HPVDD = 1.8V, AVDD = 3.3V, VRIPPLE = 200mVPP

Light Blue >> HPVDD = 2.8V

Ripple on HPVDD, AVDD

Figure 40.

Figure 41.

Headphone PSRR vs Frequency

DAC Input, DAC Gain = 0dB, HP Gain = 0dB

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

HPVDD = 1.8V, AVDD = 3.3V, DVDD = 1.8V, VRIPPLE =

HPVDD = 1.8V, AVDD = 3.3V, VRIPPLE = 200mVPP

200mVPP

Ripple on AVDD only

Ripple on HPVDD, AVDD, DVDD

Figure 42.

Figure 43.

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